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Effect on HRV of archer athletes one day before competition after three different abdominal respiratory frequency
Kai Zhang1, Jun Wei2, Lin Wang3
1Physical Education Department of Tianjin University of Technology and Education, Tianjin 300222, China.
Purpose:
To study the effect on HRV of archer athletes one day before competition after three different abdominal respiratory frequencies.
Methods:
Eight elite archers performed three different respiratory frequency tests, HRV were recorded in pre-, during, and post-frequency control in frequency 16 (F16 group, n = 8), 8 (F8 group, n = 8), and 5 (F5 group, n = 8) times per minute, and hoped to find a respiratory adjust way to reduce stress. RMSSD, RR_triangular index, TP, VLF, LF, HF and LF/HF were analyzed to describe the effect of respiratory frequency.
Result:
The average RR separate, RR_triangular index and HF showed no significant change in three respiratory frequency (P > 0.05); LF increased significantly in F16 group, but LP of F8 and F5 group increased first then reduced (P < .05); VLF rose in F8 and F5 group (P < .05, respectively), the LF/HF has the similar change as the LF in all the groups.
Conclusion:
The F16 group increased equilibrium of sympathetic and pneumogastric nerve system; F8 increase excitability of sympathetic nerve; mental fatigue remission in F5.
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