Why the study?
Does active standing affect heart rate variability differently across age groups in male subjects?
Does active standing affect heart rate variability differently across age groups in male subjects?
The autonomic response to orthostatic stress, as measured by heart rate variability, is attenuated in elderly males compared to younger individuals.
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Attenuated orthostatic HRV response in elderly males warrants interpretive caution; hypothesis-generating for age-specific autonomic norms.
Srinivasan et al. (2002) studied this question.
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