Why the study?
What are the normal responses and age-related reference values for cardiovascular autonomic function tests in healthy subjects?
Population
143 healthy unmedicated subjects from a random sample, aged 20-80 years
Design
Cross-sectional
Authors
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Supports age- and resting heart rate-adjusted reference values for autonomic tests; leaves open prospective validation in diverse cohorts.
What are the normal responses and age-related reference values for cardiovascular autonomic function tests in healthy subjects?
Cardiovascular autonomic reflex tests show age-dependent decline and wide inter-individual variation, necessitating age-related reference values for diagnostic use.
S. J. Piha (1991) studied this question.
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