title: Blood flow restriction: effects of cuff type on fatigue and perceptual responses to resistance exercise.
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.
authors.affiliation: The University of Oklahoma Department of Health and Exercise Science, Neuromuscular Research Laboratory Norman OK USA 1401 Asp Avenue, Room 104 Norman OK 73019-0615 USA.
authors.forename: J P
authors.initials: JP
authors.lastname: Loenneke
authors.affiliation: The University of Oklahoma Department of Health and Exercise Science, Neuromuscular Research Laboratory Norman OK USA.
authors.forename: R S
authors.initials: RS
authors.lastname: Thiebaud
authors.affiliation: The University of Oklahoma Department of Health and Exercise Science, Neuromuscular Research Laboratory Norman OK USA.
authors.forename: C A
authors.initials: CA
authors.lastname: Fahs
authors.affiliation: The University of Oklahoma Department of Health and Exercise Science, Neuromuscular Research Laboratory Norman OK USA.
authors.forename: L M
authors.initials: LM
authors.lastname: Rossow
authors.affiliation: University of Mississippi Department of Health, Exercise Science, and Recreation Management Oxford MS USA.
authors.forename: T
authors.initials: T
authors.lastname: Abe
authors.affiliation: The University of Oklahoma Department of Health and Exercise Science, Neuromuscular Research Laboratory Norman OK USA.
authors.forename: M G
authors.initials: MG
authors.lastname: Bemben
mesh_terms: D000328:Adult; D018592:Cross-Over Studies; D004548:Elasticity; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D009119:Muscle Contraction; D018763:Muscle Fatigue; D018482:Muscle, Skeletal / Q000098:blood supply*; D009757:Nylons; D010465:Perception; D011312:Pressure; D012039:Regional Blood Flow; D055070:Resistance Training / Q000295:instrumentation*; D013997:Time Factors; D014111:Tourniquets; D055815:Young Adult
chemical_list: D009757:Nylons
keywords: KAATSU; failure; occlusion; skeletal muscle