Key result
High (90% arterial occlusion) and low (40% arterial occlusion) blood flow restriction pressures produced similar acute decreases in torque (P=0.344) and similar chronic muscle adaptations.
Why the study?
Does high blood flow restriction pressure (90% arterial occlusion) improve muscle activation and adaptation compared to low pressure (40% arterial occlusion) during elbow flexion exercise?
Does high blood flow restriction pressure (90% arterial occlusion) improve muscle activation and adaptation compared to low pressure (40% arterial occlusion) during elbow flexion exercise?
p-value: p=0.344
Higher relative blood flow restriction pressures (90% arterial occlusion) do not provide additional benefits for muscle size and strength adaptations compared to lower pressures (40%) during exercise.
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Similar adaptations with low vs high BFR pressures; hypothesis-generating for pressure selection in BFR protocols.
Counts et al. (2015) studied this question. High blood flow restriction pressure vs. Low (40% arterial occlusion) blood flow restriction pressure was evaluated on Acute decreases in torque and chronic changes in muscle size and function (p=0.344). High (90% arterial occlusion) and low (40% arterial occlusion) blood flow restriction pressures produced similar acute decreases in torque (P=0.344) and similar chronic muscle adaptations.
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