Key result
Whole-body cold reduces cardiac output while forehead cold increases it, showing sex-dependent hemodynamic responses.
Why the study?
Cardiovascular responses to cold stress predict hypertension development, but consistency between traditional forehead cold pressor and naturalistic whole-body cold exposure in adolescents was unclear.
Does passive whole-body cold exposure elicit consistent hemodynamic responses compared to a traditional forehead cold pressor test in healthy adolescents?
Cross-Sectional (n=116)
Does passive whole-body cold exposure elicit consistent hemodynamic responses compared to a traditional forehead cold pressor test in healthy adolescents?
p-value: p=<0.05
Whole-body cold exposure offers a viable, naturalistic alternative to traditional cold pressor tests for assessing cardiovascular reactivity, though specific hemodynamic responses and intertask consistency vary by gender.
Authors
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Naturalistic cold exposure may better approximate real-world responses than forehead testing; leaves open its added value for hypertension prediction.
Kelsey et al. (2000) conducted a cross-sectional in Healthy (n=116). Whole-body cold exposure vs. Forehead cold pressor test was evaluated on Blood pressure, cardiac output, and total peripheral resistance (p=<0.05). Whole-body cold exposure elicited a decrease in cardiac output whereas forehead cold elicited an increase (P<0.05), with intertask consistency observed only in male subjects (r>0.30).