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Year : 2016  |  Volume : 9  |  Issue : 2  |  Page : 97-113
Yoga and heart rate variability: A comprehensive review of the literature

School of Health Sciences, RMIT University, Bundoora, Australia

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Date of Web Publication9-Jun-2016


Heart rate variability (HRV) has been used as a proxy for health and fitness and indicator of autonomic regulation and therefore, appears well placed to assess the changes occurring with mind.-body practices that facilitate autonomic balance. While many studies suggest that yoga influences HRV, such studies have not been systematically reviewed. We aimed to systematically review all published papers that report on yoga practices and HRV. A comprehensive search of multiple databases was conducted and all studies that reported a measure of HRV associated with any yoga practice were included. Studies were categorized by the study design and type of yoga practice. A total of 59 studies were reviewed involving a total of 2358 participants. Most studies were performed in India on relatively small numbers of healthy male yoga practitioners during a single laboratory session. Of the reviewed studies, 15 were randomized controlled trials with 6 having a Jadad score of 3. The reviewed studies suggest that yoga can affect cardiac autonomic regulation with increased HRV and vagal dominance during yoga practices. Regular yoga practitioners were also found to have increased vagal tone at rest compared to non-yoga practitioners. It is premature to draw any firm conclusions about yoga and HRV as most studies were of poor quality, with small sample sizes and insufficient reporting of study design and statistical methods. Rigorous studies with detailed reporting of yoga practices and any corresponding changes in respiration are required to determine the effect of yoga on HRV.

Keywords: Cardio-autonomic; meditation/relaxation; pranayama; vagal tone; yogic

How to cite this article:
Tyagi A, Cohen M. Yoga and heart rate variability: A comprehensive review of the literature. Int J Yoga 2016;9:97-113

How to cite this URL:
Tyagi A, Cohen M. Yoga and heart rate variability: A comprehensive review of the literature. Int J Yoga [serial online] 2016 [cited 2023 Mar 23];9:97-113. Available from:

   Introduction Top

Heart rate variability: A measure of cardiac autonomic control

There is growing evidence that physiological and psychological stress disrupts autonomic balance and prolonged autonomic imbalance is associated with a wide range of somatic and mental diseases.[1] Such autonomic imbalance is reflected in measures of heart rate variability (HRV), which have been positively associated with aerobic fitness,[2] resilience to stress,[3] and psychological and physiological flexibility [4] and negatively associated with cardiovascular disease,[1] stress,[1],[5],[6] neuronal atrophy,[7] negative affective states,[8] and maladaptive stress responses.[1]

Heart Rate (HR) in healthy humans is influenced by physical, emotional, and cognitive activities,[7] and physiological oscillations that lead to variable beat-to-beat fluctuations in HR is known as HRV. HR and HRV are perhaps the most sensitive and easily accessible indicators of autonomic regulation and vagal activity. A high resting HR is a risk factor for cardiac disease [9],[10] while HRV reflects the dynamic balance arising from the coactivation, coinhibition, or reciprocal activation or inhibition of the sympathetic and parasympathetic nervous systems [11] and provides a proxy for the health, adaptability, flexibility, and neural regulation of the cardiovascular system.[1],[7],[12]

Quantification of heart rate variability

HRV is measured using the R-R interval (QRS peak) on an electrocardiogram with the beat-to-beat variation reflecting the chaotic properties of the heart. There are a variety of different algorithmic approaches for operationalizing HRV that have been reported elsewhere.[11],[13],[14] This section outlays a brief description of time and frequency domain analysis.

It is generally accepted that under resting conditions, HRV in the time domain mainly reflects parasympathetic outflow and there are many time domain measures such as standard deviation of all normal-to-normal “N-N” intervals, root mean square of successive differences of interval (RMSSD), pair of successive normal-to-normal intervals that differ by more than 50 ms (NN50), proportion of NN50 (pNN50) etc. Frequency domain analysis reflects overall autonomic balance [13],[15] and is the most widely used tool to investigate HRV and involves decomposition of sequential R-R intervals into sinusoidal components of different amplitude and frequency.[13],[14] Power spectrum analysis is most commonly performed using the fast Fourier transformation which allows the classification of HRV into three frequency bands; very low frequency (VLF < 0.04), low frequency (LF - 0.04–0.15 Hz), and high frequency (HF - 0.15–0.4 Hz).[13],[14] The spectral components such as VLF, LF, and HF may be expressed in absolute values of power (ms 2)[13] while Pagani et al. suggest the use of relative values in the form of normalized units (n.u.) for LF and HF components such as HFn.u. and LFn.u.[15] The total frequency or variance reflects the net effect of all physiological oscillations contributing to HRV while HR oscillations in the HF band are respiratory-dependent and reflect respiratory sinus arrhythmia (RSA). As RSA is vagally modulated, HF-HRV is often considered an index of parasympathetic activity during spontaneous breathing. However, while RSA and vagal tone are inversely related to respiration rate and directly related to tidal volume under rest conditions,[11] the assumption that respiration is limited to the HF band has been questioned.[16]

Just as HF-HRV is related to parasympathetic activity, LF-HRV is often related to sympathetic activity, yet the interpretation and clinical significance of HRV in the LF band have aroused intense controversy.[16],[17] The relationship between the LF band and sympathetic activity has been disputed because LF-HRV has been shown to be partly under parasympathetic control.[16] Further, it has been argued that respiratory modulation is frequency-dependent and the impact of respiration on HRV is exacerbated when the respiration rate is between 3 and 9 breaths/min, which is within the LF range.[12],[17] In this case, RSA affects primarily LF-HRV by producing large amplitude HR oscillations in the LF range.

The enormous intra- and inter-individual differences observed in respiratory patterns [17] under many different conditions [18] suggest that differences in respiratory patterns may influence the HRV spectra independent of autonomic output.[17] Large-amplitude HR oscillations occurring in the LF range resulting from breathing at an optimal frequency may reflect resonance, also known as “coherence” occurring due to entrainment between HR, blood pressure (BP), and the relaxation response (RR)[19] rather than sympathetic tone. While such entrainment of heart rhythm coherence may lead to improved BP control and gas exchange via efficient ventilation/perfusion matching,[12],[19] it obscures the interpretation of LF or LF/HF as measures of sympathetic tone or autonomic balance.

Interpretation of the “VLF” band (Hz) is even less clear than that of the LF band. While it is accepted that the VLF band is related to thermoregulation and is sympathetically mediated,[11] standardized guidelines on HRV measurement suggest that VLF band measures cannot be accurately assessed from short-term recordings. The VLF band is, therefore, rarely reported in HRV studies.[11],[13]

Yoga and autonomic influence

Yoga involves a diverse range of mind-body practices such as meditation/relaxation techniques (dhyana), breathpractices (pranayama), and physical postures (asana) that aim to integrate the mind and body and bestow the practitioner with physical, mental, intellectual, and spiritual development. Several studies report associations between yoga and markers of autonomic activity such as HR,[20] baroreflex sensitivity,[21] galvanic skin resistance,[22] evoked potentials,[23] attention,[24] cognitive ability, emotional regulation,[25] and mental resilience.[26] Further studies report that regular yoga practice improves a wide range of clinical conditions associated with autonomic dysfunction, such as hypertension,[27],[28] diabetes,[20] anxiety,[29] depression,[30] and pain.[31] Furthermore, two systematic reviews report that yoga practices have profound effects on autonomic and metabolic activities [20],[32] and reduce cardiovascular risk.[20] In contrast, a recently published systematic review and meta-analysis that included 14 randomized clinical trials suggests there is no convincing evidence that yoga modulates HRV.[33]

Despite the known, strong relationship between autonomic function and HRV, and multiple reports of changes in HRV with yoga practice, the literature on yoga and HRV has not yet been subjected to a comprehensive review. This current paper aims to review the existing literature and document the long- and short-term effects of different yoga practices on HRV.

   Methodology Top

For this systematic review, a comprehensive search of multiple databases including Scopus, PubMed, PsycINFO, CINAHL, Cochrane, and Science Direct Database was conducted, and a separate search was performed in Indian medical journals through IndMed, which indexes more than 100 prominent Indian scientific journals. The bibliographies of identified papers were also searched for relevant articles. The search was performed for articles published up to July 2015 and was not otherwise restricted by date or study population. The primary search terms included yoga, yogic, asana/posture, pranayama/breathing, yoga nidra/relaxation, and meditation that included Transcendental, Brahma Kumaris, AUM, mantra and Kundalini, Kriya Yoga, Ananda Yoga, and Sudarshan Kriya with keywords HRV, RSA, autonomic, sympathetic, parasympathetic, and vagal. All studies that reported quantification of HRV in power spectrum frequency band, standard deviation values of beat-to-beat intervals or heart rhythm coherence with any yoga practice including yoga asanas (postures), pranayama (breathing), meditation, and yogic relaxation/nidra practices used either alone or as an integrated practice were included. Studies that included meditative practices directly associated with yoga such as transcendental meditation (TM) were also included in the review.

Studies were excluded if they were not in English, unobtainable, or only involved meditation and relaxation practices that are not directly associated with yoga such as Zazen/Zen, Buddhist, Vipassana or concentrative meditation, g-Tummo yoga, Qigong, RR, progressive muscle relaxation, and autogenic relaxation.

Selected studies were categorized according to the type of intervention: Relaxation/meditation, breathing, and postures/integrated yoga; the quality of the randomized controlled trials (RCT) was assessed using a Jadad score, which is a score from 0 to 5 that provides a measure of methodological rigor based on randomization, masking, and accountability (dropout and withdrawals).[34]

   Results Top

This review included 59 studies involving 2358 experimental subjects with study durations ranging from a single session to 6 months. A total of 16 RCTs were located with all of them having a Jadad score of 3 or less. A flowchart of the study search including the numbers of papers identified is shown in [Figure 1]. Studies, categorized according to the type of intervention (relaxation/meditation, pranayama practice, and integrated yoga/asana practice), are presented in [Table 1], [Table 2], [Table 3], [Table 4], [Table 5].
Figure 1: Flowchart of study search and included studies

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Table 1: Heart rate variability with yoga relaxation and meditation

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Table 2: Heart rate variability and yoga rapid breathing

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Table 3: Heart rate variability (HRV) and yoga slow breathing

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Table 4: Heart rate variability, yoga postures, and integrated yoga

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Table 5: Heart rate variability, yoga postures, and integrated yoga

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Heart rate variability and yogic relaxation or meditation [Table 1] summarizes the 12 studies investigating HRV during yoga relaxation and/or meditation. Seven of these studies are laboratory-based studies, of which six studies involved regular yoga/meditation practitioners while one involves non-yoga practitioners including hypertensive patients. Studies are longitudinal studies that include one cohort, one non-RCT (NRCT), and three RCTs that range from 6-week to over 6-month. These studies, which include 581 participants, reported varied outcomes with 8 studies reporting increases in HRV during yoga relaxation and/or meditation and 4 studies reporting no change.

Five of the laboratory-based studies compared HRV at baseline with HRV during or after a single laboratory session of yoga relaxation or meditation practice in regular yoga practitioners while a further study compared HRV during different stages of meditation. A further laboratory study compared HRV between different interventions after a single laboratory session study involving normotensive and hypertensive subjects. Of these studies, four reported reduced LFn.u. and increased HFn.u.[22],[35],[36],[40] while two different studies of TM in advanced meditators reported increased HF power during periods of meditation compared to baseline eyes closed [37] and during periods of transcendental experience compared to other experiences during meditation.[38] The one study examining HRV during meditation (dhyana), focused thinking (dharana), nonmeditative thinking (ekagrata), and random thinking (cancatla) reported reduced LFn.u. and increase HFn.u. during meditation (dhyana) and an increased LFn.u. and reduced HFn.u. during nonmeditative thinking and random thinking.[22] Whereas the study examining HRV in normotensive and hypertensive subjects reported decreased LFn.u. and increased HFn.u. after yoga relaxation compared to supine rest.[40] Furthermore, one study that compared HRV at baseline with HRV after yoga relaxation reported no change in HRV.[39]

A recent 12-week cohort study reported increases in both frequency and time domains [41] whereas of the three randomized studies, one study of coronary heart disease patients (with Jadad score 3) reported a marginal increase in absolute power of HF-HRV (HFms 2) after 16-weeks of TM compared to a control group that received heath education.[45] Of the two RCTs reporting no change in HRV, one (with Jadad score 3) reported no change after 10-weeks of TM [44] while another (with Jadad score 2) reported no change in HRV after 6-months of regular yoga relaxation practice.[43] Similarly, a NRCT of adolescents reported no change in HRV after 6-weeks of yoga relaxation practice.[42]

Heart rate variability and yoga breathing

[Table 2] summarizes 5 studies that involved rapid breathing practices. Two studies that measured HRV during rapid Kapalbhati breathing reported decreases in LFms 2 and HFms 2[46],[47] while two studies that compared HRV before and after Kapalbhati breathing reported increased LFn.u. and reduced HFn.u.,[48] or no change in LFn.u. and HFn.u. and a reduction in pNN50 after the practice.[49] The only longitudinal study was an RCT (with Jadad Score of 2) of elderly people regularly performing Bhastrika (rapid shallow breathing) that compared HRV before and after a 4-month intervention period. This study, which measured HRV during a period of regulated breathing at 12 breaths/min, reported decreases in LFn.u. and LF/HF in the breathing group compared to controls.[50]

[Table 3] summarizes the 13 studies that involved slow breathing practices. Of these, ten are laboratory based and three are longitudinal studies that include one cohort, one NRCT, and one RCT that range from 2-month to 5-month.

Nine laboratory-based studies compared HRV before and either during or after various slow breathing practices. Of these, two studies reported increases in LFms 2[47],[53] and two reported increases in LFn.u. with increase in LF/HF observed during breathing practice,[54],[56] while one study reported increased HR oscillations in the LF band.[51] Similarly increased HR oscillations in the LF band and significant decreases in respiratory frequency were also reported during mantra chanting and rosary prayer compared to post-session spontaneous breathing.[52] One study that examined extremely slow breathing at one breath/min in a single practitioner reported an increase in VLFms 2 and LF/HF and corresponding increases in HR while also reporting reductions in LFms 2 and HFms 2.[55] Furthermore, a recent study of slow yoga breathing in regular yoga practitioners reported no change in frequency measures compared to baseline despite improvement in time domain measures.[59] In addition, similar improvements in time domain measures have been reported in regular yoga practitioners compared to non-yoga practitioners during slow yoga breathing regulated at 6 breaths/min.[58]

Three studies examined combinations of breathing that include both fast and slow breathing practices. Of these, two studies reported increased LFms 2 and reduced RMSSD during the practices [57] and decreased sympathovagal balance with increased HFn.u. and reduced LFn.u. after 2-month of regular practice.[60] Additionally, a 5-month RCT involving healthy non-yoga participants reported no change in frequency measures of HRV with Sudarshan Kriya.[62] A similar findings are reported in a 3-month NRCT involving chronic obstructive pulmonary disease patients with yoga breathing practice.[61]

Heart rate variability, yoga postures and integrated yoga practices

[Table 4] summarizes 27 studies that investigated either yoga postures or integrated yoga practices that combine postures breathing and meditation. The majority of these studies reports enhanced autonomic balance.

Of the seven reported (3 with Jadad score of 3) ranging from 4-week to 36-week, two RCTs each with more than 20 healthy non-yoga practitioners [80],[84] and four RCTs each with more than 60 participants [79],[81],[82],[83] reported increased HFn.u., decreased LFn.u., and LF/HF with integrated yoga practices. While one RCT with 239 sedentary non-yoga practitioners reported increased heart rhythm coherence after 12 weeks of Vinyasa yoga.[85] A decrease in LFms 2 is also reported in a 4-week longitudinal cohort study of healthy female participants practicing integrated yoga [77] and an 8-week study of depressive patients practicing Iyengar yoga.[72] Furthermore, increase in pNN50 is reported after 8-week in patients with elevated BP after practicing inverted or semi-inverted yoga postures.[74]

Of the reviewed laboratory studies, four involved cyclic meditation, which involves a series of postures interspersed with relaxation practices. Three of these studies report increased HFn.u. and decreased LFn.u. along with decreased LH/HF post-intervention compared to baseline,[67],[68],[69] while one reports higher sympathovagal balance and lower LFn.u. during sleep after the practice of cyclic medication compared to rest.[70]

Further laboratory studies report decreased LF and increased HF with yoga inversion postures.[63],[65] In addition, laboratory studies also report decreased HF and increased LF/HF [64] with yoga inversion postures and increased time domain indicators of vagal activities with Iyengar yoga,[71] laughter yoga,[73] chair-based yoga practice,[66] and integrated yoga.[75] Other studies report no change in HRV with various yoga practices. These include four RCTs of integrated practices (only one of which had a Jadad scores of 3) involving <40 subjects,[21],[86],[87],[88] one NRCT with hypertensive patients,[78] and a small cohort study of 11 hypertensive patients and 6 diabetic patients practicing integrated yoga for 7 days.[76]

[Table 5] summarizes four studies comparing HRV in the resting state in non-yoga practitioners versus regular yoga practitioners. Three of these studies reported enhanced parasympathetic activity measured in the time and/or frequency domain in the regular yoga practitioners,[58],[90],[91] while one study reported lower parasympathetic activity in regular practitioners.[89]

   Discussion Top

The reviewed studies suggest that yoga can affect cardiac autonomic regulation. Most of these studies however, are of poor quality with few studies providing robust statistical analysis or estimation of effect sizes. Furthermore, as in many other studies of HRV,[14] few studies on yoga and HRV provide details of respiratory rate making it extremely difficult to distinguish changes in HRV due to changes in autonomic cardiac control and changes in HRV due to changes in respiration. This is compounded by the differences in yoga practices, procedures and their duration. Many yoga practices also, involve altered respiration and differences in instructions to subjects, the type of training given, and the respiration rates achieved, could lead to large differences in HRV measures.

Experimental and cohort studies report vagal dominance in both time and frequency domains, during and after various yoga practices including meditation, relaxation, breathing, and integrated practices. The reviewed studies further report that regular yoga practice increases vagal tone in yoga practitioners compared to non-yoga practitioners,[58],[90] sedentary individuals,[91] and individuals who regularly practice aerobic exercise.[90] In addition, yoga is reported to improve vagal outflow in sedentary individuals [83] and to enhance vagal and inhibit sympathetic activity in congestive heart failure patients.[82]

Although the mechanism by which yoga influences autonomic activity is not well understood, some yoga practices appear to directly stimulate the vagus nerve and enhance parasympathetic output [20] leading to parasympathetic dominance and enhanced cardiac function, mood, and energy states, as well as enhanced neuroendocrine, metabolic, cognitive, and immune responses.[1],[6] While the bidirectional flow of the vagus nerve allows adaptive and flexible interaction between the amygdala, prefrontal cortex, and the peripheral organs, an extensive body of literature suggests that this interaction also mediates cognitive behavioral and emotional responses.[1],[6] HRV, therefore, appears well placed to reflect the emotional and cognitive influences on organ function and the mind-body integration that occurs with many yoga practices by directly linking the input and output of the central nervous system.[1]

The present review suggests that yoga breathing practices, which involve a variety of breathing patterns at frequencies ranging from <1 to >120 BPM, can have profound effects on HRV and RSA, both of which are highly sensitive to breath-rate. Studies of HF Kapalbahti breathing at either 120 BPM or 60 BPM are reported to decrease vagal activity measured in either the frequency and/or time domain, with reductions being maintained after the practice.[48],[49] In contrast, slow yoga breathing practices are reported to increase HR fluctuations in the LF band [53],[54],[56] and/or increase the LF/HF ratio [47],[54],[56],[57] with some studies reporting simultaneous increases in HR.[53],[56] It is interesting to note that some slow breathing practices increase HR,[47],[53],[55],[56] while some meditation practices associated with slow breathing can reduce HR.[22],[35],[36],[42],[43] This may be due to slow breathing being an active process that is associated with heightened attention and an increased metabolic rate while meditation is a passive practice that is associated with diminished attention and reduced metabolic rate.[32]

High-amplitude peaks in the LF range during rhythmical slow breathing between 4.5 and 6.5/min may reflect resonance characteristics of the cardiovascular system where RSA interacts with the baroreflex.[11] Breathing at this resonant frequency, or other rhythmical stimulation at this frequency such as rhythmical skeletal muscle contraction,[92],[93] may increase HRV and be reflected in large increases in the LF band and simultaneous decreases in the HF band. Such resonance effects are reported with yoga slow breathing practices [51] as well as with yoga mantra chanting [47],[52] and some meditative practices.[47],[51] There is strong evidence that when the system is stimulated at this frequency, a phase relationship occurs between HR and BP oscillations (at 180°) and between HR oscillations and respiration (at 0°) generating high-amplitude HR peaks in the LF range that account for higher total HRV [94] as well as a decrease in HR.[95] Thus, when people breathe at this rate, gas exchange is most efficient,[12] leading to better oxygen saturation and enhanced tolerance to exercise and altitude. Regular practice of such breathing may also lead to changes in resting RSA and improved baroreceptor activity with positive autonomic effects, such as those observed with HRV-biofeedback training [19],[96] and regular yoga practice.[97],[98]

While slow breathing leads to resonance in the LF range, very slow breathing may lead to resonance in the VLF range and activation of sympathetically mediated thermoregulatory mechanisms. This is suggested by one of the reviewed studies that reports feelings of warmth and reduced LF and increased “VLF” (0.0003–0.04 Hz) power in an advanced yoga breathing at a frequency of around 1 BPM.[55] This is further supported by another study of advanced Zen meditators who reported feelings of warmth while displaying increased oscillatory peaks in both LF and VLF bands accompanied with reductions in HR during meditation.[99]

It is interesting to note that advanced meditators appear to be able to voluntarily manipulate what are often considered involuntary autonomic functions such as peripheral temperature. For example, one advanced yoga practitioner is reported to voluntarily produce a temperature difference of 11°F on different parts of the same palm.[100] A further report suggests that advanced g-Tummo meditators are able to produce dramatic increases of up to 8.3°C in peripheral body temperature (finger and toes)[101],[102] and use their body heat to dry previously wet bed-sheets placed over their shoulders in a 40°F room without shivering.[103] While the mechanisms behind conscious control over autonomic functions such as vasodilation and vasoconstriction remain unexplained, previous studies have shown that yoga practices can have profound effects on autonomic activity as well as on oxygen consumption and metabolic rate.[32]

The ability of yoga to influence autonomic function has been the subject of numerous studies that suggest that yoga practices reduce autonomic arousal and assist with a wide range of stress-related disorders.[104] This may be mediated by increased parasympathetic activity as indicated by the increased HF observed during TM.[37],[38] Yoga practices have also been reported to reduce anxiety and induce relaxation, with effects comparable to other stress-reducing techniques such as cognitive behavioral therapy and African dance.[105] While at least some of the stress-relieving effects of yoga may be related to altered autonomic arousal, clinical improvements with yoga are not necessarily reflected by changes in HRV. For example, yoga practices are reported to reduce HR, without corresponding changes in HRV.[21],[43] Improvements in high frontal coherence with TM [44] and improvements in quality of life,[87] flexibility,[88] and mood [86] with various yoga practices are also reported despite no change in HRV. It may be that many of the positive effects of yoga on autonomic function are due to resonance effects produced by changes in respiration or by other mechanism such as rhythmical skeletal muscle tension occurring during various yoga postures that may lead to vagal dominance and enhanced baroreflex gain without corresponding changes in HRV.[92],[93]

While the finding of increased HRV and improved vagal tone with yoga are consistent across most studies, it is premature to draw firm conclusions about the influence of yoga on HRV. Not all studies report HRV changes with yoga and the quality of most studies published to date is poor with few studies providing adequate reporting of study design, study population, yoga practices, methods of measurements, or statistical methods. Furthermore, the majority of studies to date have been performed in India with small numbers of adult yoga practitioners without matched comparison groups, making it difficult to extrapolate results to other populations. Most studies also lack the standardized conditions required for accurate measurement of HRV and do not express HRV spectral components in n.u. as per international convention.[8],[11],[13] A lack of methodological rigor has also been noted within RCTs of yoga and HRV.[33] Further studies are therefore needed that include more rigorous disclosure about the study methodology, the population involved, and the yoga practices being performed before more definitive conclusions about the effects of yoga and HRV can be made.

   Conclusions Top

Yoga practices, including meditation, relaxation, yoga postures, breathing, and integrated practices, appear to improve autonomic regulation and enhance vagal dominance as reflected by HRV measures; however, it is difficult to make conclusive statements about yoga and HRV as existing studies are of poor quality and use a range of heterogeneous measures. Changes in HRV with yoga may reflect resonance effects between respiration, muscle contractions, HR, and baroreflexes that enhance autonomic efficiency. More rigorous studies are required to elucidate the autonomic and clinical benefits of such practices and it is vital that future studies of yoga and HRV include detailed reporting of the yoga practices used and any corresponding changes in respiration.


The authors would like to acknowledge the assistance of Karen McVean at the RMIT library for helping to source and obtain the articles for review.

Financial support and sponsorship


Conflicts of interest

There are no conflicts of interest.

   References Top

Thayer JF, Ahs F, Fredrikson M, Sollers JJ 3rd, Wager TD. A meta-analysis of heart rate variability and neuroimaging studies: Implications for heart rate variability as a marker of stress and health. Neurosci Biobehav Rev 2012;36:747-56.  Back to cited text no. 1
Verlinde D, Beckers F, Ramaekers D, Aubert AE. Wavelet decomposition analysis of heart rate variability in aerobic athletes. Auton Neurosci 2001;90:138-41.  Back to cited text no. 2
Oldehinkel AJ, Verhulst FC, Ormel J. Low heart rate: A marker of stress resilience. The TRAILS study. Biol Psychiatry 2008;63:1141-6.  Back to cited text no. 3
Souza GG, Mendonça-de-Souza AC, Barros EM, Coutinho EF, Oliveira L, Mendlowicz MV, et al. Resilience and vagal tone predict cardiac recovery from acute social stress. Stress 2007;10:368-74.  Back to cited text no. 4
Jarczok MN, Jarczok M, Mauss D, Koenig J, Li J, Herr RM, et al. Autonomic nervous system activity and workplace stressors – A systematic review. Neurosci Biobehav Rev 2013;37:1810-23.  Back to cited text no. 5
Porges SW. The Polyvagal Theory: Neurophysiological Foundations of Emotions, Attachment, Communication, and Self-Regulation. New York: W. W. Norton; 2011.  Back to cited text no. 6
Thayer JF, Hansen AL, Saus-Rose E, Johnsen BH. Heart rate variability, prefrontal neural function, and cognitive performance: The neurovisceral integration perspective on self-regulation, adaptation, and health. Ann Behav Med 2009;37:141-53.  Back to cited text no. 7
Montano N, Porta A, Cogliati C, Costantino G, Tobaldini E, Casali KR, et al. Heart rate variability explored in the frequency domain: A tool to investigate the link between heart and behavior. Neurosci Biobehav Rev 2009;33:71-80.  Back to cited text no. 8
Habib GB. Reappraisal of heart rate as a risk factor in the general population. Eur Heart J Suppl 1999;1:H2-10.  Back to cited text no. 9
Kelley DE. Skeletal muscle fat oxidation: Timing and flexibility are everything. J Clin Invest 2005;115:1699-702.  Back to cited text no. 10
Berntson GG, Bigger JT Jr., Eckberg DL, Grossman P, Kaufmann PG, Malik M, et al. Heart rate variability: Origins, methods, and interpretive caveats. Psychophysiology 1997;34:623-48.  Back to cited text no. 11
Lehrer PM, Woolfolk RL, Sime WE. Principles and Practice of Stress Management. New York: Guilford Press; 2007.  Back to cited text no. 12
Heart rate variability: Standards of measurement, physiological interpretation and clinical use. Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology. Circulation 1996;93:1043-65.  Back to cited text no. 13
Acharya UR, Joseph KP, Kannathal N, Min LC, Suri JS. Heart rate variability. In: Acharya UR, Suri JS, editors. Advances in Cardiac Signal Processing. New York: Springer; 2007.  Back to cited text no. 14
Pagani M, Malliani A, Lombardi F, Cerutti S, Cardiovascular neural regulation explored in the frequency domain. Circulation 1991;84:482-92.  Back to cited text no. 15
Reyes del Paso GA, Langewitz W, Mulder LJ, van Roon A, Duschek S. The utility of low frequency heart rate variability as an index of sympathetic cardiac tone: A review with emphasis on a reanalysis of previous studies. Psychophysiology 2013;50:477-87.  Back to cited text no. 16
Beda A, Simpson DM, Carvalho NC, Carvalho AR. Low-frequency heart rate variability is related to the breath-to-breath variability in the respiratory pattern. Psychophysiology 2014;51:197-205.  Back to cited text no. 17
Bernardi L, Wdowczyk-Szulc J, Valenti C, Castoldi S, Passino C, Spadacini G, et al. Effects of controlled breathing, mental activity and mental stress with or without verbalization on heart rate variability. J Hypertens 2000;35:1462-9.  Back to cited text no. 18
Vaschillo E, Lehrer P, Rishe N, Konstantinov M. Heart rate variability biofeedback as a method for assessing baroreflex function: A preliminary study of resonance in the cardiovascular system. Appl Psychophysiol Biofeedback 2002;27:1-27.  Back to cited text no. 19
Innes KE, Bourguignon C, Taylor AG. Risk indices associated with the insulin resistance syndrome, cardiovascular disease, and possible protection with yoga: A systematic review. J Am Board Fam Pract 2005;18:491-519.  Back to cited text no. 20
Bowman AJ, Clayton RH, Murray A, Reed JW, Subhan MM, Ford GA. Effects of aerobic exercise training and yoga on the baroreflex in healthy elderly persons. Eur J Clin Invest 1997;27:443-9.  Back to cited text no. 21
Telles S, Raghavendra BR, Naveen KV, Manjunath NK, Kumar S, Subramanya P. Changes in autonomic variables following two meditative states described in yoga texts. J Altern Complement Med 2013;19:35-42.  Back to cited text no. 22
Telles S, Singh N, Puthige R. Changes in P300 following alternate nostril yoga breathing and breath awareness. Biopsychosoc Med 2013;7:11.  Back to cited text no. 23
Telles S, Raghuraj P, Arankalle D, Naveen KV. Immediate effect of high-frequency yoga breathing on attention. Indian J Med Sci 2008;62:20-2.  Back to cited text no. 24
[PUBMED]  Medknow Journal  
Chaya MS, Nagendra H, Selvam S, Kurpad A, Srinivasan K. Effect of yoga on cognitive abilities in schoolchildren from a socioeconomically disadvantaged background: A randomized controlled study. J Altern Complement Med 2012;18:1161-7.  Back to cited text no. 25
Cramer H, Lauche R, Langhorst J, Dobos G, Paul A. Quality of life and mental health in patients with chronic diseases who regularly practice yoga and those who do not: A case-control study. Evid Based Complement Alternat Med 2013;2013:702914.  Back to cited text no. 26
Tyagi A, Cohen M. Yoga and hypertension: A systematic review. Altern Ther Health Med 2014;20:32-59.  Back to cited text no. 27
Hagins M, States R, Selfe T, Innes K. Effectiveness of yoga for hypertension: Systematic review and meta-analysis. Evid Based Complement Alternat Med 2013;2013:649836.  Back to cited text no. 28
Li AW, Goldsmith CA. The effects of yoga on anxiety and stress. Altern Med Rev 2012;17:21-35.  Back to cited text no. 29
Pilkington K, Kirkwood G, Rampes H, Richardson J. Yoga for depression: The research evidence. J Affect Disord 2005;89:13-24.  Back to cited text no. 30
McCall MC, Ward A, Roberts NW, Heneghan C. Overview of systematic reviews: Yoga as a therapeutic intervention for adults with acute and chronic health conditions. Evid Based Complement Alternat Med 2013;2013:945895.  Back to cited text no. 31
Tyagi A, Cohen M. Oxygen consumption changes with yoga practices: A systematic review. J Evid Based Complement Alternat Med 2013;18:290-308.  Back to cited text no. 32
Posadzki P, Kuzdzal A, Lee MS, Ernst E. Yoga for heart rate variability: A systematic review and meta-analysis of randomized clinical trials. Appl Psychophysiol Biofeedback 2015;40:239-49.  Back to cited text no. 33
Jadad AR, Enkin MW. Randomized Controlled Trials: Questions, Answers and Musings. New Jersey: Wiley; 2008.  Back to cited text no. 34
Vempati RP, Telles S. Yoga-based guided relaxation reduces sympathetic activity judged from baseline levels. Psychol Rep 2002;90:487-94.  Back to cited text no. 35
Markil N, Whitehurst M, Jacobs PL, Zoeller RF. Yoga Nidra relaxation increases heart rate variability and is unaffected by a prior bout of Hatha yoga. J Altern Complement Med 2012;18:953-8.  Back to cited text no. 36
Travis F, Wallace RK. Autonomic and EEG patterns during eyes-closed rest and transcendental meditation (TM) practice: The basis for a neural model of TM practice. Conscious Cogn 1999;8:302-18.  Back to cited text no. 37
Travis F. Autonomic and EEG patterns distinguish transcending from other experiences during transcendental meditation practice. Int J Psychophysiol 2001;42:1-9.  Back to cited text no. 38
Vempati RP, Telles S. Yoga based isometric relaxation versus supine rest: A study of oxygen consumption. breath rate and volume and autonomic measures. J Indian Psychol 1999;17:46-52.  Back to cited text no. 39
Santaella DF, Lorenzi-Filho G, Rodrigues MR, Tinucci T, Malinauskas AP, Mion-Júnior D, et al. Yoga relaxation (Savasana) decreases cardiac sympathovagal balance in hypertensive patients. Med Express 2014;1:233-38.  Back to cited text no. 40
Yunati MS, Deshp VK, Yuwanate AH. Dynamics of heart rate induced by Sahaja yoga meditation in healthy normal subjects above 40 years. Natl J Physiol Pharm Pharmacol 2014;4:80-5.  Back to cited text no. 41
Madanmohan, Bhavanani AB, Prakash ES, Kamath MG, Amudhan J. Effect of six weeks of shavasan training on spectral measures of short-term heart rate variability in young healthy volunteers. Indian J Physiol Pharmacol 2004;48:370-3.  Back to cited text no. 42
Monika, Singh U, Ghildiyal A, Kala S, Srivastava N. Effect of Yoga Nidra on physiological variables in patients of menstrual disturbances of reproductive age group. Indian J Physiol Pharmacol 2012;56:161-7.  Back to cited text no. 43
Travis F, Haaga DA, Hagelin J, Tanner M, Nidich S, Gaylord-King C, et al. Effects of Transcendental Meditation practice on brain functioning and stress reactivity in college students. Int J Psychophysiol 2009;71:170-6.  Back to cited text no. 44
Paul-Labrador M, Polk D, Dwyer JH, Velasquez I, Nidich S, Rainforth M, et al. Effects of a randomized controlled trial of transcendental meditation on components of the metabolic syndrome in subjects with coronary heart disease. Arch Intern Med 2006;166:1218-24.  Back to cited text no. 45
Stancák A Jr., Kuna M, Srinivasan, Dostálek C, Vishnudevananda S. Kapalabhati – Yogic cleansing exercise. II. EEG topography analysis. Homeost Health Dis 1991;33:182-9.  Back to cited text no. 46
Peng CK, Henry IC, Mietus JE, Hausdorff JM, Khalsa G, Benson H, et al. Heart rate dynamics during three forms of meditation. Int J Cardiol 2004;95:19-27.  Back to cited text no. 47
Raghuraj P, Ramakrishnan AG, Nagendra HR, Telles S. Effect of two selected yogic breathing techniques of heart rate variability. Indian J Physiol Pharmacol 1998;42:467-72.  Back to cited text no. 48
Telles S, Singh N, Balkrishna A. Heart rate variability changes during high frequency yoga breathing and breath awareness. Biopsychosoc Med 2011;5:4.  Back to cited text no. 49
Santaella DF, Devesa CR, Rojo MR, Amato MB, Drager LF, Casali KR, et al. Yoga respiratory training improves respiratory function and cardiac sympathovagal balance in elderly subjects: A randomised controlled trial. BMJ Open 2011;1:e000085.  Back to cited text no. 50
Peng CK, Mietus JE, Liu Y, Khalsa G, Douglas PS, Benson H, et al. Exaggerated heart rate oscillations during two meditation techniques. Int J Cardiol 1999;70:101-7.  Back to cited text no. 51
Bernardi L, Sleight P, Bandinelli G, Cencetti S, Fattorini L, Wdowczyc-Szulc J, et al. Effect of rosary prayer and yoga mantras on autonomic cardiovascular rhythms: Comparative study. BMJ 2001;323:1446-9.  Back to cited text no. 52
Ghiya S, Lee CM. Influence of alternate nostril breathing on heart rate variability in non-practitioners of yogic breathing. Int J Yoga 2012;5:66-9.  Back to cited text no. 53
[PUBMED]  Medknow Journal  
Raghavendra B, Telles S, Manjunath N, Deepak K, Naveen K, Subramanya P. Voluntary heart rate reduction following yoga using different strategies. Int J Yoga 2013;6:26-30.  Back to cited text no. 54
[PUBMED]  Medknow Journal  
Jovanov E. On spectral analysis of heart rate variability during very slow yogic breathing. Ann Int Conf IEEE Eng Med Biol Proc 2005;7:2467-70.  Back to cited text no. 55
Raghuraj P, Telles S. Immediate effect of specific nostril manipulating yoga breathing practices on autonomic and respiratory variables. Appl Psychophysiol Biofeedback 2008;33:65-75.  Back to cited text no. 56
Selvaraj N, Shivplara NB, Bhatia M, Santhosh J, Deepak KK, Anand S. Heart rate dynamics during Shambhavi Mahamudra – A practice of Isha yoga. J Complement Integr Med 2008;5:1-9.  Back to cited text no. 57
Muralikrishnan K, Balakrishnan B, Balasubramanian K, Visnegarawla F. Measurement of the effect of Isha Yoga on cardiac autonomic nervous system using short-term heart rate variability. J Ayurveda Integr Med 2012;3:91-6.  Back to cited text no. 58
Telles S, Sharma SK, Balkrishna A. Blood pressure and heart rate variability during yoga-based alternate nostril breathing practice and breath awareness. Med Sci Monit Basic Res 2014;20:184-93.  Back to cited text no. 59
Bhimani NT, Kulkarni NB, Kowale A, Salvi S. Effect of Pranayama on stress and cardiovascular autonomic function. Indian J Physiol Pharmacol 2011;55:370-7.  Back to cited text no. 60
Jaju DS, Dikshit MB, Balaji J, George J, Rizvi S, Al-Rawas O. Effects of pranayam breathing on respiratory pressures and sympathovagal balance of patients with chronic airflow limitation and in control subjects. Sultan Qaboos Univ Med J 2011;11:221-9.  Back to cited text no. 61
Kharya C, Gupta V, Deepak KK, Sagar R, Upadhyav A, Kochupillai V, et al. Effect of controlled breathing exercises on the psychological status and the cardiac autonomic tone: Sudarshan Kriya and Prana-Yoga. Indian J Physiol Pharmacol 2014;58:211-21.  Back to cited text no. 62
Howorka K, Pumprla J, Heger G, Thoma H, Opavsky J, Salinger J. Computerised Assessment of Autonomic Influences of Yoga Using Spectral Analysis of Heart Rate Variability. In Engineering in Medicine and Biology Society, 1995 and 14th Conference of the Biomedical Engineering Society of India. An International Meeting, Proceedings of the First Regional Conference, IEEE; 1995.  Back to cited text no. 63
Manjunath NK, Telles S. Effects of sirsasana (headstand) practice on autonomic and respiratory variables. Indian J Physiol Pharmacol 2003;47:34-42.  Back to cited text no. 64
Pitale R, Tajane K, Phadke L, Joshi A, Umale J. Characteristics of HRV Patterns for Different Yoga Postures. In 11th IEEE India Conference: Emerging Trends and Innovation in Technology, INDICON 2014; 2015.  Back to cited text no. 65
Melville GW, Chang D, Colagiuri B, Marshall PW, Cheema BS. Fifteen minutes of chair-based yoga postures or guided meditation performed in the office can elicit a relaxation response. Evid Based Complement Alternat Med 2012;2012:501986.  Back to cited text no. 66
Sarang SP, Telles S. Effects of two yoga based relaxation techniques on heart rate variability (HRV). Int J Stress Manag 2006;13:460-75.  Back to cited text no. 67
Vempati RP, Telles S. Baseline occupational stress level and physiological response to a two day stress management program. JIndian Psychol 2000;2000:33-7.  Back to cited text no. 68
An H, Kulkarni R, Nagarathna R, Nagendra H. Measures of heart rate variability in women following a meditation technique. Int J Yoga 2010;3:6-9.  Back to cited text no. 69
[PUBMED]  Medknow Journal  
Patra S, Telles S. Heart rate variability during sleep following the practice of cyclic meditation and supine rest. Appl Psychophysiol Biofeedback 2010;35:135-40.  Back to cited text no. 70
Khattab K, Khattab AA, Ortak J, Richardt G, Bonnemeier H. Iyengar yoga increases cardiac parasympathetic nervous modulation among healthy yoga practitioners. Evid Based Complement Alternat Med 2007;4:511-7.  Back to cited text no. 71
Shapiro D, Cook IA, Davydov DM, Ottaviani C, Leuchter AF, Abrams M. Yoga as a complementary treatment of depression: Effects of traits and moods on treatment outcome. Evid Based Complement Alternat Med 2007;4:493-502.  Back to cited text no. 72
Dolgoff-Kaspar R, Baldwin A, Johnson MS, Edling N, Sethi GK. Effect of laughter yoga on mood and heart rate variability in patients awaiting organ transplantation: A pilot study. Altern Ther Health Med 2012;18:61-6.  Back to cited text no. 73
Papp ME, Lindfors P, Storck N, Wändell PE. Increased heart rate variability but no effect on blood pressure from 8 weeks of hatha yoga – A pilot study. BMC Res Notes 2013;6:59.  Back to cited text no. 74
Shankarappa V, Prabha V. Study on effect of streching exercises and pranayama on heart rate variability (HRV) in healthy volunteers. Int J Pharma Bio Sci 2013;4:120-26.  Back to cited text no. 75
Singh N, Telles S. Heart rate variability and state anxiety in hypertensives and diabetes after one week of yoga. JIndian Psychol 2009;27:13-20.  Back to cited text no. 76
Venkatesh D, Vinay AV. Cardiac-respiratory response to short term practice of yoga. Res J Pharm Biol Chen Sci 2014;5:1226-31.  Back to cited text no. 77
Niranjan M, Bhagyalakshmi K, Ganaraja B, Adhikari P, Bhat R. Effects of yoga and supervised integrated exercise on heart rate variability and blood pressure in hypertensive patients. JChin Clin Med 2009;4:139-43.  Back to cited text no. 78
Satyapriya M, Nagendra HR, Nagarathna R, Padmalatha V. Effect of integrated yoga on stress and heart rate variability in pregnant women. Int J Gynaecol Obstet 2009;104:218-22.  Back to cited text no. 79
Patil SG, Mullur LM, Khodnapur JP, Dhanakshirur GB, Aithala MR. Effect of yoga on short-term heart rate variability measure as a stress index in subjunior cyclists: A pilot study. Indian J Physiol Pharmacol 2013;57:153-8.  Back to cited text no. 80
Huang CJ, Webb HE, Zourdos MC, Acevedo EO. Cardiovascular reactivity, stress, and physical activity. Front Physiol 2013;4:314.  Back to cited text no. 81
Krishna BH, Pal P, Pal GK, Balachander J, Jayasettiaseelon E, Sreekanth Y, et al. Effect of yoga therapy on heart rate, blood pressure and cardiac autonomic function in heart failure. J Clin Diagn Res 2014;8:14-6.  Back to cited text no. 82
Sawane MV, Gupta SS. Resting heart rate variability after yogic training and swimming: A prospective randomized comparative trial. Int J Yoga 2015;8:96-102.  Back to cited text no. 83
[PUBMED]  Medknow Journal  
Nagendra H, Kumar V, Mukherjee S. Cognitive behavior evaluation based on physiological parameters among young healthy subjects with yoga as intervention. Comput Math Methods Med 2015;2015:821061.  Back to cited text no. 84
Wolever RQ, Bobinet KJ, McCabe K, Mackenzie ER, Fekete E, Kusnick CA, et al. Effective and viable mind-body stress reduction in the workplace: A randomized controlled trial. J Occup Health Psychol 2012;17:246-58.  Back to cited text no. 85
Telles S, Singh N, Joshi M, Balkrishna A. Post traumatic stress symptoms and heart rate variability in Bihar flood survivors following yoga: A randomized controlled study. BMC Psychiatry 2010;10:18.  Back to cited text no. 86
Bidwell AJ, Yazel B, Davin D, Fairchild TJ, Kanaley JA. Yoga training improves quality of life in women with asthma. J Altern Complement Med 2012;18:749-55.  Back to cited text no. 87
Cheema BS, Houridis A, Busch L, Raschke-Cheema V, Melville GW, Marshall PW, et al. Effect of an office worksite-based yoga program on heart rate variability: Outcomes of a randomized controlled trial. BMC Complement Altern Med 2013;13:82.  Back to cited text no. 88
Chaya MS, Ramakrishnan G, Shastry S, Kishore RP, Nagendra H, Nagarathna R, et al. Insulin sensitivity and cardiac autonomic function in young male practitioners of yoga. Natl Med J India 2008;21:217-21.  Back to cited text no. 89
Friis AM, Sollers Iii JJ. Yoga improves autonomic control in males: A preliminary study into the heart of an ancient practice. J Evid Based Complement Alternat Med 2013;18:176-82.  Back to cited text no. 90
Satin JR, Linden W, Millman RD. Yoga and psychophysiological determinants of cardiovascular health: Comparing yoga practitioners, runners, and sedentary individuals. Ann Behav Med 2014;47:231-41.  Back to cited text no. 91
Lehrer P, Vaschillo E, Trost Z, France CR. Effects of rhythmical muscle tension at 0.1 Hz on cardiovascular resonance and the baroreflex. Biol Psychol 2009;81:24-30.  Back to cited text no. 92
Vaschillo EG, Vaschillo B, Pandina RJ, Bates ME. Resonances in the cardiovascular system caused by rhythmical muscle tension. Psychophysiology 2011;48:927-36.  Back to cited text no. 93
Lehrer PM, Vaschillo E, Vaschillo B. Resonant frequency biofeedback training to increase cardiac variability: Rationale and manual for training. Appl Psychophysiol Biofeedback 2000;25:177-91.  Back to cited text no. 94
Wang SZ, Li S, Xu XY, Lin GP, Shao L, Zhao Y, et al. Effect of slow abdominal breathing combined with biofeedback on blood pressure and heart rate variability in prehypertension. J Altern Complement Med 2010;16:1039-45.  Back to cited text no. 95
Vaschillo EG, Vaschillo B, Lehrer PM. Characteristics of resonance in heart rate variability stimulated by biofeedback. Appl Psychophysiol Biofeedback 2006;31:129-42.  Back to cited text no. 96
Bernardi L, Gabutti A, Porta C, Spicuzza L. Slow breathing reduces chemoreflex response to hypoxia and hypercapnia, and increases baroreflex sensitivity. J Hypertens 2001;19:2221-9.  Back to cited text no. 97
Spicuzza L, Gabutti A, Porta C, Montano N, Bernardi L. Yoga and chemoreflex response to hypoxia and hypercapnia. Lancet 2000;356:1495-6.  Back to cited text no. 98
Lehrer P, Sasaki Y, Saito Y. Zazen and cardiac variability. Psychosom Med 1999;61:812-21.  Back to cited text no. 99
Green EG. Self regulation: East and west. Beyond biofeedback. New York: Delacorte Press/S. Lawrence; 1977.  Back to cited text no. 100
Benson H. Body temperature changes during the practice of g Tum-mo yoga. Nature 1982;298:402.  Back to cited text no. 101
Kozhevnikov M, Elliott J, Shephard J, Gramann K. Neurocognitive and somatic components of temperature increases during g-tummo meditation: Legend and reality. PLoS One 2013;8:e58244.  Back to cited text no. 102
Cromie WJ. Meditation change temperature. Harvard University Gazette [Internet]. 2002. Available from: [Cited on 2015 April 10].  Back to cited text no. 103
Khalsa SB. Yoga as a therapeutic intervention: A bibliometric analysis of published research studies. Indian J Physiol Pharmacol 2004;48:269-85.  Back to cited text no. 104
Chong CS, Tsunaka M, Tsang HW, Chan EP, Cheung WM. Effects of yoga on stress management in healthy adults: A systematic review. Altern Ther Health Med 2011;17:32-8.  Back to cited text no. 105

Correspondence Address:
Marc Cohen
School of Health Sciences, RMIT University, Bundoora
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0973-6131.183712

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  [Table 1], [Table 2], [Table 3], [Table 4], [Table 5]

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39 Acute Changes in Energy Expenditure and Heart Rate Variability During and Right After One Hour of Hatha Yoga Practice
Mehmet Emin Tuna, Dicle Aras, Neval Aras, Mehmet Ali Özçelik, Abdurrahman Aktop
Polish Journal of Sport and Tourism. 2020; 27(4): 29
[Pubmed] | [DOI]
40 Yoga in school sports improves functioning of autonomic nervous system in young adults: A non-randomized controlled pilot study
Julia Frank, Georg Seifert, Rico Schroeder, Bernd Gruhn, Wiebke Stritter, Michael Jeitler, Nico Steckhan, Christian S. Kessler, Andreas Michalsen, Andreas Voss, Johannes Fleckenstein
PLOS ONE. 2020; 15(4): e0231299
[Pubmed] | [DOI]
41 Yogic meditation improves objective and subjective sleep quality of healthcare professionals
Priscilla Caetano Guerra, Danilo F. Santaella, Vania D'Almeida, Rogerio Santos-Silva, Sergio Tufik, Claudio Arnaldo Len
Complementary Therapies in Clinical Practice. 2020; 40: 101204
[Pubmed] | [DOI]
42 Neuropsychological Impact of Trauma-Related Mental Illnesses: A Systematic Review of Clinically Meaningful Results
Kristen Silveira, Mauricio A. Garcia-Barrera, Colette M. Smart
Neuropsychology Review. 2020; 30(3): 310
[Pubmed] | [DOI]
43 The effects of yoga on student mental health: a randomised controlled trial
Tiril Elstad, Pål Ulleberg, Sandra Klonteig, Jonny Hisdal, Gunvor Marie Dyrdal, Arild Bjorndal
Health Psychology and Behavioral Medicine. 2020; 8(1): 573
[Pubmed] | [DOI]
44 Benefits of yoga in the treatment of eating disorders: Results of a randomized controlled trial
Margaret A. Brennan, William J. Whelton, Donald Sharpe
Eating Disorders. 2020; 28(4): 438
[Pubmed] | [DOI]
45 The impact of a yoga-based physical therapy group for individuals with traumatic brain injury: results from a pilot study
Kelly Krese, Benjamin Ingraham, Megan K. O’Brien, Chaithanya K. Mummidisetty, Mary McNulty, Nina Srdanovic, Masha Kocherginsky, David Ripley
Brain Injury. 2020; 34(8): 1118
[Pubmed] | [DOI]
46 Effects of Yoga Respiratory Practice (Bhastrika pranayama) on Anxiety, Affect, and Brain Functional Connectivity and Activity: A Randomized Controlled Trial
Morgana M. Novaes, Fernanda Palhano-Fontes, Heloisa Onias, Katia C. Andrade, Bruno Lobão-Soares, Tiago Arruda-Sanchez, Elisa H. Kozasa, Danilo F. Santaella, Draulio Barros de Araujo
Frontiers in Psychiatry. 2020; 11
[Pubmed] | [DOI]
47 The Spiritual Heart
Micheline R. Anderson
Religions. 2020; 11(10): 506
[Pubmed] | [DOI]
48 Comparative study of the impact of active meditation protocol and silence meditation on heart rate variability and mood in women
GunjanY Trivedi, Vidhi Patel, MeghalH Shah, MeghanaJ Dhok, Kunal Bhoyania
International Journal of Yoga. 2020; 13(3): 255
[Pubmed] | [DOI]
49 Temporal dynamics of pre and post myocardial infarcted tissue with concomitant preconditioning of aerobic exercise in chronic diabetic rats
Gunjan Sharma, Megha Sahu, Ashish Kumar, Arun K. Sharma, Vidhu Aeri, Deepshikha Pande Katare
Life Sciences. 2019; 225: 79
[Pubmed] | [DOI]
50 Effect of hot arm and foot bath on heart rate variability and blood pressure in healthy volunteers
Samruddhi Chintaman Vyas, A. Mooventhan, N. K. Manjunath
Journal of Complementary and Integrative Medicine. 2019; 17(1)
[Pubmed] | [DOI]
51 Correlational analysis of heart rate variability band power and respiratory frequency to identify an optimal frequency band
Mahak Narang, Mandeep Singh
Transactions of the Institute of Measurement and Control. 2019; 41(14): 4167
[Pubmed] | [DOI]
52 Effects of Hatha Yoga and Resistance Exercise on Affect and State Anxiety in Women
Katerina Fishman, Bridget A. McFadden, Joseph K. Pellegrino, Devon L. Golem, Patrick M. Davitt, Alan J. Walker, Shawn M. Arent
Translational Journal of the American College of Sports Medicine. 2019; 4(16): 119
[Pubmed] | [DOI]
53 A New Framework to Infer Intra- and Inter-Brain Sparse Connectivity Estimation for EEG Source Information Flow
Laxmi Shaw, Aurobinda Routray
IEEE Sensors Journal. 2018; 18(24): 10134
[Pubmed] | [DOI]


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