Key result
Peak calf blood flow during reactive hyperemia following 3 minutes of ischemia was significantly higher in the sitting position with feet on the ground compared to the supine position (p<0.05).
Why the study?
Does sitting posture compared to supine position alter maximum calf blood flow during reactive hyperemia in healthy males?
Does sitting posture compared to supine position alter maximum calf blood flow during reactive hyperemia in healthy males?
Sitting posture increases peak calf blood flow during reactive hyperemia compared to the supine position, likely due to higher hydrostatic pressure.
Posture may influence calf reactive hyperemia testing; leaves open need for standardized positioning in vascular research.
Reactive hyperemia in the calf after arresting femoral blood flow for 3 min was measured by means of strain gauge plethysmography in different postures, i.e. supine, sitting with legs resting horizontally (sitting I), and sitting with the feet on the ground (sitting II). Blood flow in the calf at rest and hyperemia decreased more in the sitting I and II positions than in the supine position. However, the peak flow of the reactive hyperemia was higher in the sitting I and II positions than in the supine position.
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Saito et al. (1984) studied Healthy (n=12). Sitting posture (sitting with legs resting horizontally or feet on the ground) vs. Supine posture was evaluated on Peak calf blood flow in reactive hyperemia (p=<0.05). Peak calf blood flow during reactive hyperemia following 3 minutes of ischemia was significantly higher in the sitting position with feet on the ground compared to the supine position (p<0.05).
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