Key result
Blood flow restriction during resistance exercise performed until concentric muscle failure attenuated muscle damage markers within 24 hours compared to 48 hours for resistance exercise alone.
Why the study?
The study aimed to evaluate whether blood flow restriction can prevent exercise-induced muscle damage during resistance exercise performed until concentric muscle failure.
Does blood flow restriction during resistance exercise until concentric muscle failure attenuate muscle damage in healthy volunteers?
Does blood flow restriction during resistance exercise until concentric muscle failure attenuate muscle damage in healthy volunteers?
Blood flow restriction during resistance exercise to failure attenuates muscle damage and accelerates recovery compared to traditional resistance exercise to failure.
Answers are grounded in this paper and cite their sources.
May accelerate post-exercise recovery in healthy adults; hypothesis-generating and should not yet change practice.
The present study aimed to evaluate whether blood flow restriction (BFR) can prevent exercise-induced muscle damage in resistance exercise (RE) performed until concentric muscle failure (CMF). Twenty healthy volunteers (25 ± 4 years, 80.4 ± 11.8 kg, 175 ± 8 cm) performed three sets of unilateral biceps curl exercise (40% of 1RM) with (RE + BFR) and without (RE) BFR until CMF. A third condition was to perform the same number of repetitions as RE + BFR without using BFR (matched). Performing fewer repetitions, RE + BFR caused muscle fatigue post-exercise as high as that caused by RE. In addition, the range of motion, upper arm circumference, pressure pain threshold, and maximal voluntary contraction were immediately affected by our exercise protocol with BFR, returning rapidly to basal values within 24 h, while in RE, muscle damage markers remained elevated until 48 h post-exercise. The same results were observed concerning serum creatine kinase and lactate dehydrogenase activity. Thus, BFR + RE performed until CMF attenuated muscle damage following similar metabolic stress to RE alone performed until CMF, with less work volume.
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Curty et al. (2023) studied Healthy volunteers (n=20). Blood flow restriction (BFR) during resistance exercise vs. Resistance exercise without BFR (RE) and matched repetitions without BFR was evaluated on Exercise-induced muscle damage markers (range of motion, upper arm circumference, pressure pain threshold, maximal voluntary contraction, serum creatine kinase, lactate dehydrogenase). Blood flow restriction during resistance exercise performed until concentric muscle failure attenuated muscle damage markers within 24 hours compared to 48 hours for resistance exercise alone.
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