Key result
Blood flow-restricted resistance exercise induced selective increases in type I myofiber area (12% vs 0%, P<0.01) and myonuclear number compared to conventional training in powerlifters.
Why the study?
Does blood flow-restricted resistance exercise improve muscle hypertrophy and strength compared to conventional training in powerlifters?
Population
17 national level powerlifters, mean age 25 ± 6 years, 15 men
Comparison
Blood flow-restricted resistance exercise… vs Conventional training group performing front…
Design
RCT, randomly assigned
Follow-up
6.5 weeks
Authors
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BFRRE may offer low-load option for type I hypertrophy in powerlifters; extends fiber-specific BFR evidence to competitive athletes.
RCT (n=17)
randomly assigned
Does blood flow-restricted resistance exercise improve muscle hypertrophy and strength compared to conventional training in powerlifters?
Absolute Event Rate: 12% vs 0%
p-value: p=< 0.01
Low-load blood flow-restricted resistance exercise in powerlifters increases quadriceps cross-sectional area and preferentially hypertrophies type 1 muscle fibers compared to conventional training.
Bjørnsen et al. (2018) conducted an RCT in Healthy (national level powerlifters) (n=17). Blood flow-restricted resistance exercise (BFRRE) vs. Conventional training at 60%-85% of 1RM was evaluated on Increase in type I myofiber area (MFA) (p=< 0.01). Blood flow-restricted resistance exercise induced selective increases in type I myofiber area (12% vs 0%, P<0.01) and myonuclear number compared to conventional training in powerlifters.
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