Acute Central Stiffness and Muscle Morphological Responses Following Blood Flow Restricted Resistance Exercise with Autoregulated and Non-Autoregulated Pressure Application

Rolnick, Nicholas; Licameli, Nicholas; Moghaddam, Masoud Azadi; Marquette, Lisa; Walter, Jessica; Fedorko, Brent; Werner, Tim

doi:10.51224/srxiv.253

Cited by 2 publications

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“…A recent preprint provided additional context to the discussion of autoregulation of applied pressures during BFR exercise. In another within-subject design, Rolnick et al ( Rolnick et al, 2023 ) investigated the acute central stiffness and muscle morphological responses to four sets of exhaustive wall squat exercise. Squats were performed at 20% 1-RM in 20 healthy, physically active men and women with- and without autoregulation of applied BFR pressures using the Delfi Personalized Tourniquet device.…”

Section: The Impact Of Lesser-known Cuff Features On Personalized Pre...mentioning

confidence: 99%

Beneath the cuff: Often overlooked and under-reported blood flow restriction device features and their potential impact on practice—A review of the current state of the research

Rolnick

Kimbrell²,

Queiros

2023

Front. Physiol.

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Training with blood flow restriction (BFR) has been shown to be a useful technique to improve muscle hypertrophy, muscle strength and a host of other physiological benefits in both healthy and clinical populations using low intensities [20%–30% 1-repetition maximum (1RM) or <50% maximum oxygen uptake (VO2max)]. However, as BFR training is gaining popularity in both practice and research, there is a lack of awareness for potentially important design characteristics and features associated with BFR cuff application that may impact the acute and longitudinal responses to training as well as the safety profile of BFR exercise. While cuff width and cuff material have been somewhat addressed in the literature, other cuff design and features have received less attention. This manuscript highlights additional cuff design and features and hypothesizes on their potential to impact the response and safety profile of BFR. Features including the presence of autoregulation during exercise, the type of bladder system used, the shape of the cuff, the set pressure versus the interface pressure, and the bladder length will be addressed as these variables have the potential to alter the responses to BFR training. As more devices enter the marketplace for consumer purchase, investigations specifically looking at their impact is warranted. We propose numerous avenues for future research to help shape the practice of BFR that may ultimately enhance efficacy and safety using a variety of BFR technologies.

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Section: The Impact Of Lesser-known Cuff Features On Personalized Pre...mentioning

confidence: 99%

Beneath the cuff: Often overlooked and under-reported blood flow restriction device features and their potential impact on practice—A review of the current state of the research

Rolnick

Kimbrell²,

Queiros

2023

Front. Physiol.

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View full text Add to dashboard Cite

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Autoregulated and Non-Autoregulated Blood Flow Restriction on Acute Arterial Stiffness

et al. 2023

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To investigate the acute effects of autoregulated and non-autoregulated applied pressures during blood flow restriction resistance exercise to volitional fatigue on indices of arterial stiffness using the Delfi Personalized Tourniquet System. Following a randomized autoregulated or non-autoregulated blood flow restriction familiarization session, 20 physically active adults (23±5 years; 7 females) participated in 3 randomized treatment-order sessions with autoregulated and non-autoregulated and no blood flow restriction training. Participants performed 4 sets of dumbbell wall squats to failure using 20% of 1 repetition maximum. Blood flow restriction was performed with 60% of supine limb occlusion pressure. Testing before and post-session included an ultrasonic scan of the carotid artery, applanation tonometry, and blood pressure acquisition. Carotid-femoral pulse wave velocity increased in the non-autoregulated and no blood flow restriction training groups following exercise while carotid-radial pulse wave velocity increased in the no blood flow restriction training group (all p < 0.05). Carotid-femoral pulse wave velocity exhibited an interaction effect between autoregulated and non-autoregulated blood flow restriction in favor of autoregulated blood flow restriction (p < 0.05). Autoregulated blood flow restriction training does not influence indices of arterial stiffness while non-autoregulated and no blood flow restriction training increases central stiffness.

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Acute Central Stiffness and Muscle Morphological Responses Following Blood Flow Restricted Resistance Exercise with Autoregulated and Non-Autoregulated Pressure Application

Cited by 2 publications

References 0 publications

Beneath the cuff: Often overlooked and under-reported blood flow restriction device features and their potential impact on practice—A review of the current state of the research

Beneath the cuff: Often overlooked and under-reported blood flow restriction device features and their potential impact on practice—A review of the current state of the research

Autoregulated and Non-Autoregulated Blood Flow Restriction on Acute Arterial Stiffness

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