Effect of slow breathing exercise on heart rate variability in tension-type headache female patients: A time domain analysis

Background: Tension-type headache (TTH), the most frequently occurring primary is associated with autonomic dysfunction. Time domain analysis of heart rate variability (HRV) a popular tool to detect changes in cardiac nerve function (CANF) TTH patients. Slow breathing exercise (SBE) can significantly improve HRV patients cardiovascular disorders. Objective: To observe effect SBE on by time female Methods: This quasi-experimental study was conducted from March 2021 February 2022 Department Physiology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka 60 aged 20-45 years. Thirty performed every morning and evening for 30 minutes addition receiving conventional treatment continued only without any 90 days. age, sex BMI matched apparently healthy control were enrolled who did not perform or other exercise. All subjects assessed at baseline also after parameters recorded Power Lab 8/35 AD Instruments, Australia. One way ANOVA followed post-hoc test Paired sample t-test statistical p<0.05 considered as significance. Results: Mean (HR) higher (p<0.001) SDRR (Standard deviation all RR interval); CVRR (Coefficient variation SDSD successive interval differences between adjacent intervals); RMSSD (Square root mean squared interval) pRR50% (Proportion duration > 50ms) lower compared baseline. Significant decrement HR increment observed days SBE. Again, decreased SDRR, CVRR, SDSD, (p<0.001, p<0.01) Conclusion: may effectively dysfunction J Bangladesh Soc Physiol. 2022, June; 17(1): 56-63