Why the study?
Does age affect autonomic nervous system function in healthy subjects?
Does age affect autonomic nervous system function in healthy subjects?
Age significantly affects vagal but not sympathetic cardiovascular autonomic function, highlighting the need for age-adjusted control values in autonomic testing.
May support age-adjusted norms for vagal autonomic testing; leaves open sympathetic stability across healthy aging.
We studied 76 healthy subjects (five-85 years) with a number of invasive and non-invasive tests of autonomic function. Age related effects were found with the tests of predominantly vagal cardiovascular function. However, there were no age related effects found with the tests of predominantly sympathetic cardiovascular function. The age of the subject should be taken into consideration when evaluating tests of autonomic function and each laboratory should establish its own control values.
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Ingall et al. (1990) studied this question.
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