Key result
Active leg movement protected macrovascular endothelial function during prolonged sitting in mild hypercapnia, whereas passive movement only salvaged microvascular function.
Why the study?
Do passive and active leg movements improve cardiovascular function in healthy adults during prolonged sitting in mild hypercapnia?
Do passive and active leg movements improve cardiovascular function in healthy adults during prolonged sitting in mild hypercapnia?
Active leg movement is required to preserve macrovascular endothelial function and hemodynamics during prolonged sitting in mild hypercapnia, whereas both active and passive movements salvage microvascular function.
Active movement may be required to preserve macrovascular endothelial function during sitting; leaves open dissociation of metabolic from mechanical effects.
Passive leg movement could not preserve macrovascular endothelial function, whereas active leg movement could protect endothelial function. Attenuated microvascular function can be salvaged by passive movement and active movement. Preservation of macrovascular hemodynamics and plasma total nitrate/nitrite and endothelin-1 during prolonged sitting requires active movement. These findings dissociate the impacts induced by mechanical stress (passive movement) from the change in metabolism (active movement) on the vasculature during prolonged sitting in a mild hypercapnic environment.
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Park et al. (2022) studied Healthy adults in mild hypercapnia. Passive and active leg movements vs. Prolonged sitting was evaluated on Macrovascular and microvascular endothelial function. Active leg movement protected macrovascular endothelial function during prolonged sitting in mild hypercapnia, whereas passive movement only salvaged microvascular function.
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