Blood flow restriction: Effects of cuff type on fatigue and perceptual responses to resistance exercise

Loenneke, Jeremy and Thiebaud, R.S. and Fahs, C.A. and Rossow, L.M. and Abe, T. and Bemben, M.G. (2014) Blood flow restriction: Effects of cuff type on fatigue and perceptual responses to resistance exercise. Acta Physiologica Hungarica, 101 (2). pp. 158-166. ISSN 0231-424X

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Abstract

Blood flow restriction (BFR) combined with low load resistance training has been shown to result in muscle hypertrophy similar to that observed with higher loads. However, not all studies have found BFR efficacious, possibly due to methodological differences. It is presently unclear whether there are differences between cuffs of similar size (5 cm) but different material (nylon vs. elastic). The purpose was to determine if there are differences in repetitions to fatigue and perceptual ratings of exertion (RPE) and discomfort between narrow elastic and narrow nylon cuffs. Sixteen males and females completed three sets of BFR knee extension exercise in a randomized cross-over design using either elastic or nylon restrictive cuffs applied at the proximal thigh. There were no differences in repetitions to fatigue (marker of blood flow) or perceptual ratings between narrow elastic and narrow nylon cuffs. This data suggests that either elastic or nylon cuffs of the same width should cause similar degrees of BFR at the same pressure during resistance exercise.

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