<研究論文>大学生柔道選手における心拍変動解析による自律神経機能評価

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Cardiac sympatheic and parasympathetic activities were evaluated by the power spectral analysis of heart rate variability in 7 judo athletes (7 men, mean age; 20 years), 10 phasic-exercise athletes (10 men, mean age; 18 years) and 12 non-athletes (12 men, mean age; 18 years). All examinees underwent Holter monitoring. The 7 judo athletes performed maximal exercise testing using bicycle ergomter. Mean RR interval, standard deviation of RR interval (SD), low frequenvy power (LF, 0.04-0.15 ms^2/Hz), high frequency power (HF, 0.15-0.40 ms^2 /Hz), coefficient of HF component variance (CVHF), and LF/HF ratio were obtained. SD, HF and CVHF magnitudes indicated parasympathetic activities. LF/HF ratio was used as an indicator of sympathetic activities. Mean RR interval, SD magnitude and HF power were significantly greater in judo athletes than in non-athletes (p<0.01,p<0.05,p<0.05 in each) and LF/HF ratio was significantly lower in judo athletes than in non-athletes. However, when compared to phasic-exercise athletes, only mean RR interval was significantly prologed in judo athetes. There were no significant differences in SD magnitude, HF power and CVHF values between immediately after and additional 10 minutes after exercise testing, indicating the were no rapid increase in vagal reflex. These results indicate that judo athletes have increased vagal and decreased sympathetic activities at rest, and that there are on difference of autonomic function between tonic-and phasic-exercise athletes. In addition, it is unlikely that strong vagal reflex, resulting in subsequent sinus arrest, occurs after exercise in judo athletes.
東海大学の論文

<研究論文>大学生柔道選手における心拍変動解析による自律神経機能評価

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