Key result
Dynamic exercise at 60% maximal work capacity increased mean blood velocity (77.00 vs 43.71 cm/s) and interstitial adenosine more than exercise at 30% capacity (P<0.05).
Why the study?
Does higher intensity exercise (60% vs 30% Wmax) increase mean blood velocity and muscle interstitial metabolite concentrations in healthy young subjects?
Population
7 healthy young subjects
Comparison
5 min of dynamic one-legged knee extension… vs 5 min of dynamic one-legged knee extension…
Design
Other
Follow-up
5 min of exercise and 5 min of recovery
Authors
Loading...
Higher-intensity exercise may augment muscle perfusion via adenosine in healthy subjects; leaves open relevance to cardiovascular disease.
Does higher intensity exercise (60% vs 30% Wmax) increase mean blood velocity and muscle interstitial metabolite concentrations in healthy young subjects?
Absolute Event Rate: 77% vs 43.71%
p-value: p=< 0.05
Increases in exercise intensity result in concomitant changes in mean blood velocity and muscle interstitial adenosine and K+, suggesting they play an active role in regulating skeletal muscle blood flow.
Lott et al. (2001) studied Healthy (n=7). Dynamic one-legged knee extension exercise at 60% W(max) vs. Exercise at 30% W(max) was evaluated on Femoral mean blood velocity (MBV) (p=< 0.05). Dynamic exercise at 60% maximal work capacity increased mean blood velocity (77.00 vs 43.71 cm/s) and interstitial adenosine more than exercise at 30% capacity (P<0.05).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: