Brachial blood flow under relative levels of blood flow restriction is decreased in a nonlinear fashion

Mouser, J. Grant; Ade, Carl J.; Black, Christopher D.; Bemben, Debra A.; Bemben, Michael G.

doi:10.1111/cpf.12432

Cited by 46 publications

(45 citation statements)

References 32 publications

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“…We have previously reported that blood flow is reduced in a nonlinear fashion when applying relative levels of 10% increments of AOP in the upper body using a 5 cm wide cuff (Mouser et al, 2017a) and have further shown that this relationship is not different when applying relative pressures using 5-, 10-and 12-cm cuffs (Mouser et al, 2017b). Work performed by Hunt et al (2016) examining the decrease in blood flow at absolute increments of 10 mmHg determined the decrease to be linear.…”

Section: Introductionmentioning

confidence: 91%

Blood flow restriction and cuff width: effect on blood flow in the legs

Mouser

Dankel

Mattocks

et al. 2018

Clin Physio Funct Imaging

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Section: Introductionmentioning

confidence: 91%

Blood flow restriction and cuff width: effect on blood flow in the legs

Mouser

Dankel

Mattocks

et al. 2018

Clin Physio Funct Imaging

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“…An ongoing limitation with blood flow restriction exercise research is the inconsistency in the equipment that is used to induce BFR, while the absence of this information being reported is common. Narrower cuff widths require higher pressures to fully occlude limb blood flow, as do elastic cuffs compared with nylon cuffs, 19,76,81 so reporting only the pressure used without indication of percentage AOP/LOP or the equipment employed makes reproducibility impossible. However, this problem is mitigated with the use of individualized pressures, provided that the measure of LOP or AOP uses the same cuff as that employed during the exercise itself 19,76 .…”

Section: Discussionmentioning

confidence: 99%

Is there rationale for the cuff pressures prescribed for blood flow restriction exercise? A systematic review

Clarkson

May

Warmington

2020

Scandinavian Med Sci Sports

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Background Blood flow restriction exercise has increasingly broad applications among healthy and clinical populations. Ensuring the technique is applied in a safe, controlled, and beneficial way for target populations is essential. Individualized cuff pressures are a favored method for achieving this. However, there remains marked inconsistency in how individualized cuff pressures are applied. Objectives To quantify the cuff pressures used in the broader blood flow restriction exercise literature, and determine whether there is clear justification for the choice of pressure prescribed. Methods Studies were included in this review from database searches if they employed an experimental design using original data, involved either acute or chronic exercise using blood flow restriction, and they assessed limb or arterial occlusion pressure to determine an individualized cuff pressure. Methodologies of the studies were evaluated using a bespoke quality assessment tool. Results Fifty‐one studies met the inclusion criteria. Individualized cuff pressures ranged from 30% to 100% arterial occlusion pressure. Only 7 out of 52 studies attempted to justify the individualized cuff pressure applied during exercise. The mean quality rating for all studies was 11.1 ± 1.2 out of 13. Conclusions The broader blood flow restriction exercise literature uses markedly heterogeneous prescription variables despite using individualized cuff pressures. This is problematic in the absence of any clear justification for the individualized cuff pressures selected. Systematically measuring and reporting all relevant acute responses and training adaptations to the full spectrum of BFR pressures alongside increased clarity around the methodology used during blood flow restriction exercise is paramount.

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“…Consistent, Mouser et al (2017) identified an inverse relationship between systolic pressure and cuff width for both men (5 cm: 160 ± 16mmHg; 10 cm: 125 ± 8; 12 cm: 122 ± 9, p<0.001) and…”

Section: Cuff Widthmentioning

confidence: 78%

“…Vascular occlusion in the research literature is typically accomplished via inflation of a pneumatic cuff placed at the proximal portion of the limb; this is further modified by differing inflation pressures as discussed and cuff widths (Mouser et al 2017). Many studies utilising occlusion have applied a single arbitrary pressure to all participants and not accounted for cuff width (Table 2.5).…”

Section: Cuff Widthmentioning

confidence: 99%

“…104 ± 13mmHg; 10 cm: 73 ± 8; 12 cm: 68 ± 9, p<0.001) and women (5 cm: 89 ± 15mmHg; 10 cm: 67 ± 10; 12 cm: 63 ± 11, p<0.001). Following an examination of relative pressures and their relationship to the measured diastolic blood pressure with each cuff, it was reported lower restriction pressures only affect the venous system indicating cuff pressures that are below the diastolic pressure will affect venous return without compressing the arteries (Mouser et al 2017).…”

Section: Cuff Widthmentioning

confidence: 99%

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Pre-competition and recovery strategies in elite sport: the use of vascular occlusion and ischemic preconditioning

Williams¹

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Pre-competition and recovery strategies in elite sport: the use of vascular occlusion and ischemia Understanding competition demands and training are only two components that impact overall performance which have been previously established in the literature; pre-competition and recovery can also improve athletic performance. However, considerably less research has been conducted in elite populations, investigating the effect of pre-competition and recovery strategies. This thesis set out to investigate a pre-competition and recovery strategy for application in elite sport, via a series of studies specifically focussed on vascular occlusion and limb ischemic preconditioning (IPC). Common to all studies was the importance of individualising cuff pressure and ensuring all studies were completed with elite athletes. Study one investigated the use of vascular occlusion combined with resistance exercise, performed in the morning prior to afternoon exercise performance. Despite exercise with occlusion attenuating the decline in T from morning to afternoon, this did not translate into improved afternoon performance in strength-power athletes. Study two examined the use of limb IPC applied 2h and 24h prior to swimming time trial performance. There were no differences in physiological (blood gases and lactate) or performance markers measured between conditions, when compared to a control. Study three investigated vascular occlusion applied as a recovery strategy following repeated sprint exercise, in rugby union players. Recovery rate, assessed through biochemical, hormonal, neuromuscular and subjective perception of muscle soreness were not significantly different following application of vascular occlusion. This thesis successfully examined the use of vascular occlusion/limb IPC as a precompetition and recovery strategy within elite athletes. Despite the absence of performance improvements, this thesis addressed some of the practical limitations of applying predetermined protocols in sport and offered alternative protocols to be applied across a range of sports (strengthpower, anaerobic, team sports) in areas which have not previously been investigated, providing clear practical implications and future research to inform coaches and performance scientists.

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Brachial blood flow under relative levels of blood flow restriction is decreased in a nonlinear fashion

Abstract: The decrease in brachial blood flow is not proportional to the applied relative pressure. The prescription of blood flow restriction should take into account the stimulus provided at each relative level of blood flow.

Cited by 46 publications

References 32 publications

Blood flow restriction and cuff width: effect on blood flow in the legs

Blood flow restriction and cuff width: effect on blood flow in the legs

Is there rationale for the cuff pressures prescribed for blood flow restriction exercise? A systematic review

Pre-competition and recovery strategies in elite sport: the use of vascular occlusion and ischemic preconditioning

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