太極拳對心率變異度，血脂肪以及細胞激素的效果
Heart rate variability (HRV)
- HRV has been systematically examined since 18th century.
- Hales (1733)
first reported beat-to-beat variability of heart rate in conjunction with arterial blood pressure.
found correlation between respiratory cycle, blood pressure and the interval between heart beats (RR intervals).
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