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Analysis of correlation between physical training and autonomic function by using multivariate analysis: establishing an indicator of health

机译：使用多变量分析来分析物理训练与自主神经功能的相关性：建立健康指标

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The purpose of this study is to assess the effects of physical training on autonomic nervous function. Twenty-two healthy subjects(12 males and 10 females) participated in this study. We inquired contents of the exercise for each subject. Continuous ECG was recorded during 320 seconds at supine resting. Respiratory rhythm was fixed at 0.25 Hz(15 time/min). On the basis of spectral analysis of heart rate variability, the autonomic nervous function was assessed by low frequency power(LF: 0.06-0.13 Hz) and high frequency power(HF: 0.16-0.50 Hz). The predominance of sympathetic nervous activity were indicated by the LF/HF and LF-HF. Relationship between physical training and autonomic function was analyzed by using multivariate analysis(partial correlation analysis). As the results, LF power and LF-HF negatively correlated with training time per day, energy expenditure per day, energy expenditure per week, and total energy expenditure, respectively(p < 0.05). HF power positively correlated with energy expenditure per day, energy expenditure per week, and total energy expenditure, respectively(p < 0.05). These results indicate not training time but energy expenditure alters the autonomic nervous function. This index may be useful for evaluating training effect on the promotion of health.
机译：本研究的目的是评估身体培训对自主神经功能的影响。二十两名健康科目（12名男性和10名女性）参加了这项研究。我们为每个主题询问了练习的内容。在仰卧休息期间，在320秒内记录连续的心电图。呼吸节律固定在0.25Hz（15次/分钟）。在心率变异性的光谱分析的基础上，通过低频功率（LF：0.06-0.13Hz）和高频功率（HF：0.16-0.50Hz）评估自主神经功能。 LF / HF和LF-HF表示交感神经活性的优势。通过使用多变量分析（部分相关分析）分析了物理训练与自主神经功能的关系。作为结果，LF功率和LF-HF与每天训练时间负相关，每天能源支出，每周能源支出和总能源支出（P <0.05）。 HF功率与每天能源支出，每周能源支出以及总能源支出的能量支出呈正相关（P <0.05）。这些结果表明不培训时间，但能量支出改变了自主神经功能。该指数可用于评估对促进健康的培训效果。

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