Key result
One month of daily yoga is linked to a ~25% higher SDNN, reflecting parasympathetic predominance.
Why the study?
Does short-term practice of yoga improve heart rate variability in healthy male volunteers?
Does short-term practice of yoga improve heart rate variability in healthy male volunteers?
Short-term practice of yoga for one month significantly improves heart rate variability by shifting the autonomic balance toward parasympathetic predominance in healthy males.
Answers are grounded in this paper and cite their sources.
Short-term yoga was associated with favorable HRV shifts in healthy men; leaves open relevance to patients or sustained outcomes.
BACKGROUND: Yoga is a science that facilitates homeostasis, an ancient way of life intended to improve the quality of life of an individual. Practice of yoga is proposed to alter the autonomic nervous system and affect the cardiovascular functioning. This study was intended to assess the influence of short-term practice of yoga for a month on heart rate variability (HRV). MATERIALS AND METHODS: Totally, 40 healthy male volunteers in the age group of 30-60 years willing to practice yoga for a month were included in the study. HRV was assessed using HRV device (RMS Vagus, India). Preinterventional assessment of HRV was done in these subjects. Practice of yoga that included a set of physical postures (asanas), breathing techniques (pranayama), and meditation (dhyana) were performed for an hour daily for 1 month under the guidance of a certified yoga instructor. Postinterventional assessment of HRV was done. The values were expressed in median and their interquartile range, and statistical analysis was done to compare the changes using Wilcoxon Signed Rank Test. RESULTS: Thirty-two of 40 subjects recruited for yoga practice completed the study protocol. Analysis of HRV revealed that in time domain parameters, SDNN increased from 33.60 (31.41-44.82) to 42.11 (34.43-57.51), RMSSD increased from 22.00 (16.00-33.80) to 25.6 (17.0-34.8), and PNN50 increased from 2.45 (0.80-15.38) to 7.35 (1.40-18.57) after intervention. In the frequency domain parameters, the low-frequency (LF) power spectrum reduced from 39.30 (25.1-46.25) to 30.40 (22.75-40.62) and LF/high-frequency ratio was reduced from 2.62 (1.91-4.07) to 2.28 (1.4-3.07) after 1 month practice of yoga. P < 0.05 was considered statistically significant. CONCLUSION: Autonomic balance tilts toward parasympathetic predominance after 1 month practice of yoga.
No takes yet. Share an insight, caveat, or question.
Vinay et al. (2015) studied Healthy (n=40). Yoga vs. Pre-intervention baseline was evaluated on SDNN (ms) (p=0.006). One month of daily yoga practice significantly increased SDNN from 33.60 ms to 42.11 ms and reduced the LF/HF ratio from 2.62 to 2.28, indicating a shift toward parasympathetic predominance.
Synapse has enriched 10 related papers. Consider them for comparative context: