Luke Heath looks at the evidence for blood flow restriction training; does it benefit athletes who require rapid post-injury rehab and if so, how should it be performed.
An inevitable consequence of lower limb injuries is muscle atrophy and weakness. Rehabilitation therapists and coaches want to find ways to limit this from happening, so an athlete’s recovery is speedy, safe and injury recurrence is prevented.
A traditional method of training athletes to increase muscle size and strength is high-intensity resistance training (HIRT) with multiple sets of 5-12 repetitions at loadings greater than 70% of a single repetition maximum (1RM). However, following an injury or surgery, it may not be possible to perform HIRT. Indeed, it may even further damage healing tissue and, therefore, cannot be performed at all. By contrast, low-intensity resistance training (LIRT) at reduced intensities (20-50% 1RM) in conjunction with blood flow restriction (BFR) has been shown in research to be effective at increasing muscular hypertrophy and strength.
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