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为阐明有氧锻炼对心脏自主神经调节功能的影响,以及这种变化与卧位/坐位下体负压(LBNP)作用下的心率调节及立体耐力之间是否有一定联系,用频域、动态谱及非线性指标较全面分析了大学生有氧锻炼6个月前、后心率变异性(HRV)的变化.结果表明:常规AR谱分析的批处理结果只能代表一段时间内HRV信号的平均统计特性,方差大,得不出有显著意义的结果.而
To clarify the effect of aerobic exercise on cardiac autonomic nervous system modulation and whether there is a relationship between this change and heart rate regulation and endurance of body under LBNP, And the non-linear indexes comprehensively analyzed the change of heart rate variability (HRV) after 6 months of aerobic exercise in college students.The results showed that the results of batch processing of conventional AR spectrum analysis can only represent the average statistical characteristics of HRV signals over a period of time , The variance is large, no significant results can be obtained