<研究論文>中年スポーツ選手の心拍変動パワースペトクル解析による自律神経機能評価 : 若年スポーツ選手との比較

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Power spectral analysis of heart rate variability was performed to assess cardiac autonomic function using Holter monitoring method in 6 middle-aged athletes and 6 age-matched middle aged controls. The results of these analyses were compared with those of 6 young athletes and 6 age-matched young controls. Power spectral analysis deomposed the heart rate variability into high frequency power (HF : 0.15-0.40 Hz) and low frequency power (LF : 0.04-0.15 Hz). HF values and LF/HF ratios were used as markers of cardiac vagal and sympathetic modulation, respectively. The middle-aged atheletes group demonstrated significant reduction in HF values during the daytime and nighttime as compared to the young athletes group (p<0.01 in the morning; p<0.05 in the afternoon; p<0.01 at night). The night time HF was significantly higher in the young athletes group than its control group (p<0.05), while no significant difference was found between the middle aged athletes and its control group. The LF/HF was significantly higher during the night in the middle-aged athletes than in the young athletes (p<0.05). These results suggest sympathovagal balance with lower vagal and higher sympathetic outflow to the heart in the middle aged athletes than in the young athletes.
東海大学の論文
1995-03-05