Why the study?
Does graded light dynamic exercise alter autonomic balance modulating the sino-atrial node in healthy subjects?
Population
15 healthy ambulant subjects, mean age 32 +/- 9 years
Comparison
Three-step progressive supine bicycle exercise vs 10 min control recording (baseline)
Design
Other
Authors
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Supports distinct cardiac-vascular sympathetic thresholds during graded exercise; extends autonomic research but leaves open clinical translation.
Does graded light dynamic exercise alter autonomic balance modulating the sino-atrial node in healthy subjects?
Cardiac sympathetic activation and vagal withdrawal occur immediately during light exercise, whereas peripheral vascular sympathetic activation requires higher exercise intensity.
Lucini et al. (1995) studied this question.
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