Key result
Graded lower body negative pressure elicited greater calf vasoconstrictor responses in men compared to women, as shown by steeper slopes of oxygenated hemoglobin reduction (-0.62 vs -0.33).
Why the study?
Do men and women exhibit different peripheral vascular responses to graded lower body negative pressure?
Population
20 volunteers (11 men, 9 women)
Comparison
Graded lower body negative pressure up to -60 mm… vs Comparison between men and women
Design
Cross-sectional
Authors
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Sex differences in LBNP vasoconstriction are hypothesis-generating; prospective trials needed before clinical or aerospace application.
Cross-Sectional (n=20)
Do men and women exhibit different peripheral vascular responses to graded lower body negative pressure?
Hachiya et al. (2012) reported a cross-sectional. Graded lower body negative pressure (LBNP) vs. Men vs Women was evaluated on Oxygenated hemoglobin response as a function of calf blood pooling (slope). Graded lower body negative pressure elicited greater calf vasoconstrictor responses in men compared to women, as shown by steeper slopes of oxygenated hemoglobin reduction (-0.62 vs -0.33).
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