Study on the Regular Changes of Training Effect of Autonomic Nervous Stability of Flight Personnel

2022 
To study the characteristics of the regular changes of autonomic nervous stability training for flight personnel, and provide scientific and application basis for clarifying the training methods, procedures and objective evaluation of the effects. Method 101 military pilots were selected as the subjects. Three phases of autonomic nervous stability training for the pilots before and after the three times of heart rate variability (heart rate variability, HRV) index, including time domain and frequency domain index data and combined with frequency of 0.1 Hz for recording and analysis on order to probe the regular changes of heart rate variability in autonomous nervous stability training of flight staff. Results After autonomous nervous stability training: (1) Time domain index: SDNN index increased, and reached the highest value in the third training; RMS-SD index decreased; SDSD and PNN50 showed a downward trend (P < 0.05). (2) Frequency domain indexes: TP, LF, LF/HF and LFnorm were significantly increased, and TP reached the highest value in the third training; VLF and HFNorm significantly decreased. (3) HRV power spectrum at 0.1 Hz was enhanced before and after training of pilots, and the difference was significant (P < 0.01). Conclusions Through the regular changes of HRV indexes after autonomic nervous stability training of pilots, the results showed that the overall level of autonomic nervous function of pilots was increased after the training, and the stress level is mobilized to a more suitable working state, and the best effect is achieved in the third training.
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