Key result
Dynamic handgrip exercise increased mean blood velocity by 50-100% above rest following the first contraction (p < 0.05), indicating microvascular vasodilation contributes to rapid hyperemia.
Population
6 volunteers
Comparison
Dynamic handgrip exercise with varying arm… vs Rest, and comparisons between different arm…
Design
Other
Follow-up
5 minutes
Authors
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Supports microvascular vasodilation in early hyperemia; hypothesis-generating for other beds and clinical populations.
p-value: p=<0.05
Microvascular vasodilation, alongside reduced venous pressure, contributes to the rapid increase in forearm blood flow within the first 2-4 seconds of exercise.
Shoemaker et al. (1998) studied Healthy volunteers (n=6). Dynamic handgrip exercise with altered arm position, workload, and contraction rate vs. Rest and different exercise conditions was evaluated on Mean blood velocity (MBV) (p=<0.05). Dynamic handgrip exercise increased mean blood velocity by 50-100% above rest following the first contraction (p < 0.05), indicating microvascular vasodilation contributes to rapid hyperemia.
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