Effect of Heartfulness cleaning and meditation on heart rate variability

Arya, Narendra Kumar; Singh, Kamlesh; Malik, Anushree; Mehrotra, Rahul

doi:10.1016/j.ihj.2018.05.004

Cited by 38 publications

(38 citation statements)

References 23 publications

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“…Yet in other NS breath-holds, there was rapid variation in if H , with arrhythmias changing between two set points (Figure 2B, NS3), similar to that seen in the gray seal (see Figure 6A in Thompson and Fedak, 1993). We have commonly seen this variation and arrhythmias in cetaceans such as the bottlenose dolphin, short-finned pilot whale (Globicephala macrorhynchus), killer whale (Orcinus orca), false killer whale (Pseudorca crassidens), and beluga (Delphinapterus leucas), and agree with the suggestion that these arrhythmias are common in marine mammals and do not represent cardiovascular morbidity (Ponganis et al, 2017;Arya et al, 2018;Bickett et al, 2019;Fahlman et al, 2019bFahlman et al, , 2020b. Rather, these changes in f H and arrhythmias provide further evidence of extensive cardiovascular plasticity in cetaceans.…”

Section: Evidence For Conditioned Control Of Heart Ratesupporting

confidence: 81%

“…Specific circumstances, including listening to music (Yuen and Sander, 2017) and meditation (Arya et al, 2018;Ionson et al, 2019) may affect f H by this route in humans, but such vagal relaxation are relatively slow to set in. Even under these circumstances the control of f H , although decided by the individual, is not induced by direct somatic motor control, i.e., is not voluntary.…”

Section: Neural Basis For Central Regulation Of the Heartbeatmentioning

confidence: 99%

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Conditioned Variation in Heart Rate During Static Breath-Holds in the Bottlenose Dolphin (Tursiops truncatus)

Fahlman

Cozzi

Manley³

et al. 2020

Front. Physiol.

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Previous reports suggested the existence of direct somatic motor control over heart rate (fH) responses during diving in some marine mammals, as the result of a cognitive and/or learning process rather than being a reflexive response. This would be beneficial for O2 storage management, but would also allow ventilation-perfusion matching for selective gas exchange, where O2 and CO2 can be exchanged with minimal exchange of N2. Such a mechanism explains how air breathing marine vertebrates avoid diving related gas bubble formation during repeated dives, and how stress could interrupt this mechanism and cause excessive N2 exchange. To investigate the conditioned response, we measured the fH-response before and during static breath-holds in three bottlenose dolphins (Tursiops truncatus) when shown a visual symbol to perform either a long (LONG) or short (SHORT) breath-hold, or during a spontaneous breath-hold without a symbol (NS). The average fH (ifHstart), and the rate of change in fH (difH/dt) during the first 20 s of the breath-hold differed between breath-hold types. In addition, the minimum instantaneous fH (ifHmin), and the average instantaneous fH during the last 10 s (ifHend) also differed between breath-hold types. The difH/dt was greater, and the ifHstart, ifHmin, and ifHend were lower during a LONG as compared with either a SHORT, or an NS breath-hold (P < 0.05). Even though the NS breath-hold dives were longer in duration as compared with SHORT breath-hold dives, the difH/dt was greater and the ifHstart, ifHmin, and ifHend were lower during the latter (P < 0.05). In addition, when the dolphin determined the breath-hold duration (NS), the fH was more variable within and between individuals and trials, suggesting a conditioned capacity to adjust the fH-response. These results suggest that dolphins have the capacity to selectively alter the fH-response during diving and provide evidence for significant cardiovascular plasticity in dolphins.

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Section: Evidence For Conditioned Control Of Heart Ratesupporting

confidence: 81%

Section: Neural Basis For Central Regulation Of the Heartbeatmentioning

confidence: 99%

Conditioned Variation in Heart Rate During Static Breath-Holds in the Bottlenose Dolphin (Tursiops truncatus)

Fahlman

Cozzi

Manley³

et al. 2020

Front. Physiol.

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“…In the frequency domain, HF band values were significantly higher in caregivers who underwent the meditation program, indicating activation of the parasympathetic nervous system, as previously observed after manual treatment or music therapy [35,36]. A meditation session in healthy individuals [37] and an eight-week yoga program in women with high depressive symptoms Chu (2015) [38] were found to exert positive effects on sympathovagal balance, increasing the HF and reducing the LF and LF/HF ratio. However, the comparison of HRV findings among studies is hampered by differences in measurement techniques and study parameters.…”

Section: Discussionsupporting

confidence: 63%

Effects of Meditation on Mental Health and Cardiovascular Balance in Caregivers

Díaz‐Rodríguez

Vargas-Román

Sánchez-García

et al. 2020

Preprint

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Background: Caring for a loved one can be rewarding but also associated with substantial caregiver burden, developing mental outcomes and affecting happiness. Eventually, these physical and psychological disorders can lead to an imbalance of the autonomic nervous system. Meditation has been found to offer multiple benefits to relieve these disorders and reduce the risk of cardiovascular disease. The aim of this study was to determine the effects of a four-week 16-hour presential meditation program on physiological and psychological parameters and vagal nerve activity in high-burden caregivers, comparing the results with those not receiving this program. Methods: A non-randomized repeated-measures controlled clinical trial was conducted, dividing participants between intervention and control groups by convenience allocation because random assignment was ethically inappropriate. Results: After the meditation program, the experimental group showed a significant reduction in anxiety levels (F= 24.92, p<0.001), a non-significant amelioration of depression levels (F= 1.75, p=0.19), and significantly improved heart rate variability (F= 8.40, p<0.05) and SDNN (F=15.59, p<0.05). Conclusions: Meditation can be a useful therapy to enhance the mental health and autonomic nervous system balance of informal caregivers, improving symptoms of physical and mental overload.

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“…Meditation would be beneficial on a wide range of disorders (such as anxiety, depression, pain) and would exert positive effects upon HRV by increasing vagal tone. HRV was shown to be modulated during meditation and yoga practice (5, 6) with a positive effect on sympathovagal balance. Heartfulness meditation (HM) is a heart-based meditation practice aiming to reach a balance of mind (7).…”

Section: Introductionmentioning

confidence: 99%

Changes in Heart Rate Variability During Heartfulness Meditation: A Power Spectral Analysis Including the Residual Spectrum

Leonard

Clément

Kuo

et al. 2019

Front. Cardiovasc. Med.

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Background: Meditation refers to a group of practices commonly proposed to treat stress-related conditions and improve overall wellness. In particular, meditation might exert beneficial actions on heart rate variability (HRV) by acting on autonomic tone with an increase in the vagal activity. The effects of heartfulness meditation (HM) on HRV remain poorly defined. Methods: We investigated the effects of HM on HRV in a group of 26 healthy subjects. Subjects were regularly practicing this form of meditation on a daily basis. We assessed the HRV and residual HRV (rHRV) at rest and during meditation. We also used as control a period of respiratory rhythm imposed by an auditory signal, with the imposed breathing rhythm being identical to the spontaneous rhythm recorded during meditation. Results: During deep meditation period, the standard deviation of RR intervals (SD RR ), coefficient of variation of RR intervals (CV RR ), and total power (TP) were decreased while the low-frequency power (LFP), normalized LFP (nLFP), and normalized residual LFP (nrLFP) were increased as compared with those at rest, suggesting that the global vagal modulation was suppressed while the baroreflex was increased during deep medication. At the end of meditation, the LFP, residual LFP (rLFP), nLFP, nrLFP, low-/high-frequency power ratio (LHR), and residual LHR (rLHR) were increased while the residual very low-frequency power (rVLFP), normalized high-frequency power (nHFP), and normalized residual HFP (nrHFP) were decreased, as compared with those during paced breathing, suggesting that the vagal modulation was decreased while the sympathetic modulation was increased by deep meditation. During paced breathing period, the SD RR , CV RR , TP, LFP, rLFP, nLFP, nrLFP, LHR, and rLHR were decreased while nHFP and nrHFP were increased as compared with at rest, suggesting that paced breathing could suppress the sympathetic modulation and enhance the vagal modulation. Conclusion: HM can induce a suppression of global vagal modulation and increased the sympathetic modulation and baroreflex. In addition, paced breathing can suppress the sympathetic modulation and enhance the vagal modulation. Unlike studies using other types of meditation, we did not identify evidence of increased vagal tone during HM.

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Effect of Heartfulness cleaning and meditation on heart rate variability

Cited by 38 publications

References 23 publications

Conditioned Variation in Heart Rate During Static Breath-Holds in the Bottlenose Dolphin (Tursiops truncatus)

Conditioned Variation in Heart Rate During Static Breath-Holds in the Bottlenose Dolphin (Tursiops truncatus)

Effects of Meditation on Mental Health and Cardiovascular Balance in Caregivers

Changes in Heart Rate Variability During Heartfulness Meditation: A Power Spectral Analysis Including the Residual Spectrum

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