Key result
A 6-minute hand-immersion cold pressor test provoked significant cardiac sympathetic activation and parasympathetic withdrawal in healthy adults.
Why the study?
Does a 6 min cold pressor test protocol effectively evaluate cardiac autonomic function in healthy normotensive individuals?
Cross-Sectional (n=24)
Does a 6 min cold pressor test protocol effectively evaluate cardiac autonomic function in healthy normotensive individuals?
The 6-minute hand-immersion cold pressor test effectively provokes cardiac sympathetic activation and parasympathetic withdrawal, though high inter-individual variability makes it best suited for repeated measures designs.
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Supports repeated-measures autonomic research despite variability; leaves open clinical standardization and validation.
Wirch et al. (2006) conducted a cross-sectional in Healthy, normotensive (n=24). Cold pressor test (hand immersion) vs. Baseline/other postures was evaluated on Cardiac autonomic function (blood pressure, sympathetic and parasympathetic nervous system indicators). A 6-minute hand-immersion cold pressor test provoked significant cardiac sympathetic activation and parasympathetic withdrawal in healthy adults.
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