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Research: TELLES and COLLEAGUES,
Listed in Issue 259
Abstract
TELLES and COLLEAGUES, 1. Patanjali Research Foundation, Patanjali Yogpeeth, Haridwar, Uttarakhand, 249402, India. shirleytelles@gmail.com ; 2. Patanjali Research Foundation, Patanjali Yogpeeth, Haridwar, Uttarakhand, 249402, India conducted a randomized controlled trial to compare heart rate variability in chronic low back pain patients randomized to yoga or standard care.
Background
Chronic pain can alter the autonomic balance with increased sympathetic activity reflected in altered heart rate variability (HRV). It has been proposed that yoga can be useful to correct the autonomic imbalance in patients with chronic pain who have reduced HRV.
Methodology
In the present randomized controlled trial 62 patients with chronic low back pain associated with altered alignment of intervertebral discs (aged between 20 and 45 years, 32 males) were randomized to 2 groups. One group received yoga for 3 months while the other group carried out standard medical care based on the physician's advice. The duration was the same, i.e., 3 months. The heart rate variability and rate of respiration were assessed at baseline and at the end of 3 months.
Results
There was a significant difference in the baseline (pre) values between groups (p = 0.008) for respiration rate which was higher in the yoga group. The changes reported below are pre-post comparisons within each group. The yoga group showed a significant (p < 0.05; repeated measures ANOVA, post-hoc analyses) decrease in the LF power of HRV, rate of respiration and a significant increase in the HF power of HRV and in the pNN50.
Conclusion
The results suggest that yoga practice can shift the autonomic balance towards vagal dominance in patients with chronic low back pain associated with altered alignment of intervertebral discs. Trial Registration: The study is registered with the Clinical Trials Registry of India ( CTRI/2012/11/003094 ) and can be accessed at PMCID: PMC4982400.
References
Telles S1, Sharma SK2, Gupta RK2, Bhardwaj AK2, Balkrishna A2. Heart rate variability in chronic low back pain patients randomized to yoga or standard care. BMC Complement Altern Med. 16(1):279. doi: 10.1186/s12906-016-1271-1. Aug 11 2016.
