Knee extension with blood flow restriction: Impact of cuff pressure on hemodynamics

Singer, Tyler J.; Stavres, Jon; Elmer, Steven J.; Kilgas, Matthew A.; Pollock, Brandon S.; Kearney, Sarah G.; McDaniel, John

doi:10.1007/s00421-019-04250-2

Cited by 24 publications

(42 citation statements)

References 37 publications

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“…Interestingly, the continued increase in HHb concentration during the rest intervals of the BFR70 condition was not observed at the lower occlusion pressure in BFR50. This is consistent with a previous study which reported that HHb did not increase further at rest with 60% occlusion but did increase further at 80% [80]. These corroborated findings indicate that there may be an occlusion threshold which impedes venous blood flow out of the limb.…”

Section: Tissue Perfusionsupporting

confidence: 93%

Acute physiological responses to arm-cranking with blood flow restriction

Cockfield¹

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Section: Tissue Perfusionsupporting

confidence: 93%

Acute physiological responses to arm-cranking with blood flow restriction

Cockfield¹

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“…Variables such as cuff width, limb circumference, ankle-brachial index, fat and muscle thickness, arterial stiffness, endothelial function, and blood pressure may influence BFRP ( Loenneke et al, 2012 , 2015 ; Hunt et al, 2016 ; Jessee et al, 2016 ; Bezerra de Morais et al, 2017 ). Doppler ultrasound ( Bezerra de Morais et al, 2017 ), handheld Doppler ( Laurentino et al, 2018 ), pulse oximetry ( Zeng et al, 2019 ), and predictive equations ( Hunt et al, 2016 ) have been proposed to adequately obtain and individually prescribe BFRP to maximize benefits and minimize discomfort/risks during BFR exercise ( Singer et al, 2020 ; Spitz et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Blood Flow Restriction Training: To Adjust or Not Adjust the Cuff Pressure Over an Intervention Period?

et al. 2021

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Blood flow restriction (BFR) training combines exercise and partial reduction of muscular blood flow using a pressured cuff. BFR training has been used to increase strength and muscle mass in healthy and clinical populations. A major methodological concern of BFR training is blood flow restriction pressure (BFRP) delivered during an exercise bout. Although some studies increase BFRP throughout a training intervention, it is unclear whether BFRP adjustments are pivotal to maintain an adequate BFR during a training period. While neuromuscular adaptations induced by BFR are widely studied, cardiovascular changes throughout training intervention with BFR and their possible relationship with BFRP are less understood. This study aimed to discuss the need for BFRP adjustment based on cardiovascular outcomes and provide directions for future researches. We conducted a literature review and analyzed 29 studies investigating cardiovascular adaptations following BFR training. Participants in the studies were healthy, middle-aged adults, older adults and clinical patients. Cuff pressure, when adjusted, was increased during the training period. However, cardiovascular outcomes did not provide a plausible rationale for cuff pressure increase. In contrast, avoiding increments in cuff pressure may minimize discomfort, pain and risks associated with BFR interventions, particularly in clinical populations. Given that cardiovascular adaptations induced by BFR training are conflicting, it is challenging to indicate whether increases or decreases in BFRP are needed. Based on the available evidence, we suggest that future studies investigate if maintaining or decreasing cuff pressure makes BFR training safer and/or more comfortable with similar physiological adaptation.

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“…The physiological mechanisms that are activated by BFR are currently unclear. It has been hypothesized that an intramuscular hypoxic environment [5] could induce vascular endothelial growth and high levels of metabolic stress which could promote hypertrophy [6,7]. Furthermore, an increased concentration of growth factors, satellite cells, transcription factors [3], reactive oxygen species, intramuscular anabolic and anticatabolic reactions, and an increased recruitment of type II muscle fibers were also observed [6,8,9], which could facilitate muscle hypertrophy.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Blood Flow Restriction Training versus Non-Occlusive Training in Patients with Anterior Cruciate Ligament Reconstruction or Knee Osteoarthritis: A Systematic Review

Álvarez

Santamaría

Fernández-Matías

et al. 2020

JCM

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Patients undergoing anterior cruciate ligament (ACL) reconstruction and patients suffering from knee osteoarthritis (KOA) have been shown to have quadriceps muscle weakness and/or atrophy in common. The physiological mechanisms of blood flow restriction (BFR) training could facilitate muscle hypertrophy. The purpose of this systematic review is to investigate the effects of BFR training on quadriceps cross-sectional area (CSA), pain perception, function and quality of life on these patients compared to a non-BFR training. A literature research was performed using Web of Science, PEDro, Scopus, MEDLINE, Dialnet, CINAHL and The Cochrane Library databases. The main inclusion criteria were that papers were English or Spanish language reports of randomized controlled trials involving patients with ACL reconstruction or suffering from KOA. The initial research identified 159 publications from all databases; 10 articles were finally included. The search was conducted from April to June 2020. Four of these studies found a significant improvement in strength. A significant increase in CSA was found in two studies. Pain significantly improved in four studies and only one study showed a significant improvement in functionality/quality of life. Low-load training with BFR may be an effective option treatment for increasing quadriceps strength and CSA, but more research is needed.

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Knee extension with blood flow restriction: Impact of cuff pressure on hemodynamics

Cited by 24 publications

References 37 publications

Acute physiological responses to arm-cranking with blood flow restriction

Acute physiological responses to arm-cranking with blood flow restriction

Blood Flow Restriction Training: To Adjust or Not Adjust the Cuff Pressure Over an Intervention Period?

Comparison of Blood Flow Restriction Training versus Non-Occlusive Training in Patients with Anterior Cruciate Ligament Reconstruction or Knee Osteoarthritis: A Systematic Review

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