Cardiovascular Response to Low-Intensity Walking with Restricted Leg Muscle Blood Flow

Abe, Takashi; Kusuhara, Keiko; Fujita, Taku; Brechue, William F.; Sato, Yoshiaki; Nakajima, Toshiaki

doi:10.1249/01.mss.0000274693.98920.a3

Cited by 22 publications

(69 citation statements)

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“…It is generally accepted that high-intensity resistance training (≥70% of 1RM) can stimulate gains in muscle strength (22). However, previous studies have shown that low-load BFR resistance and endurance exercises performed with BFR can increase maximal strength (28,31,37–40). The results of the present study are consistent with previous research in that the leg with BFR exercise showed increased muscle strength.…”

Section: Discussionmentioning

confidence: 99%

“…Walking and cycling with BFR can also positively influence maximal strength (28,31,40,44) According to recent metaanalysis, training with BFR can more effectively improve strength and hypertrophy than low-load training performed with unrestricted blood flow (45). Furthermore, previous findings suggest that significant muscle development is possible in athletes after low-load training with BFR (37)(38)(39).…”

Section: Discussionmentioning

confidence: 99%

“…Bjørnsen and coworkers (26) recently reported that two 1-wk blocks with low-load BFR resistance training induced a significant increase in maximal isokinetic strength in elite powerlifters. Walking and cycling with BFR can also positively influence maximal strength (28,31,40,44) According to recent meta-analysis, training with BFR can more effectively improve strength and hypertrophy than low-load training performed with unrestricted blood flow (45). Furthermore, previous findings suggest that significant muscle development is possible in athletes after low-load training with BFR (37–39).…”

Section: Discussionmentioning

confidence: 99%

“…However, mounting evidence indicates that the use of low-intensity resistance exercise (20%–40% 1RM) combined with blood flow restriction (BFR) results in strength and morphological responses comparable to those observed during high-intensity resistance exercise (23–26). In addition to observing increased muscle strength and hypertrophy, several studies have also demonstrated that adding BFR to low-intensity resistance or endurance exercise increases skeletal muscle expression of the messenger RNA related to angiogenesis as well as maximal oxygen uptake, aerobic capacity, and muscular endurance compared with training without BFR or before training (27–31).…”

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confidence: 99%

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Effects of Blood Flow Restriction Training on Blood Perfusion and Work Ability of Muscles in Elite Para-alpine Skiers

Geng¹,

Zhang

2021

Medicine &Amp; Science in Sports &Amp; Exercise

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Purpose The effects of short-term blood flow restriction (BFR) exercise on muscle blood flow perfusion and performance during high-intensity exercise were determined in elite para-alpine standing skiers to assess whether this would be an effective training regimen for elite athletes with disabilities. Methods Nine national-level para-alpine standing skiers (mean age, 20.67 ± 1.34 yr; four women) were recruited. Nondominant lower limbs were trained with BFR (eight in final analyses), and dominant lower limbs were trained without BFR (seven in final analyses). The 2-wk protocol included high-load resistance, local muscle endurance (circuit resistance training), and aerobic endurance (stationary cycling) training performed 4 times a week, with BFR during local muscle endurance and aerobic endurance sessions. Muscle strength was measured by maximal voluntary isometric contraction (MVIC) in the knee extensors; microcirculatory blood perfusion (MBP), by laser Doppler blood flow; and muscle strength and endurance, by the total amount of work (TW) performed during high-intensity centrifugal and concentric contractions. Results BFR significantly increased absolute and relative MVIC ( P < 0.001, P = 0.001), MBP ( P = 0.011, P = 0.008), and TW ( P = 0.006, P = 0.007) from pretraining values, whereas only absolute MVIC increased without BFR ( P = 0.047). However, the MVIC increase with BFR exercise (35.88 ± 14.83 N·m) was significantly greater ( P = 0.040) than without BFR exercise (16.71 ± 17.79 N·m). Conclusions Short-term BFR exercise significantly increased strength endurance, muscle strength, and MBP in national-level para-alpine standing skiers. Our study provides new evidence that BFR exercise can improve local muscle blood perfusion during high-intensity exercise and informs BFR exercise strategies for athletes with disabilities.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Effects of Blood Flow Restriction Training on Blood Perfusion and Work Ability of Muscles in Elite Para-alpine Skiers

Geng¹,

Zhang

2021

Medicine &Amp; Science in Sports &Amp; Exercise

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“…It is well established that ischemic environments increase rates of fatigue, 24 – 30 and that MMG can be used to measure skeletal muscle fatigue. 31 – 38 If the proposed fatigue protocol is valid, it should be able to detect an increase in fatigue when the muscle is manipulated into an ischemic environment.…”

Section: Introductionmentioning

confidence: 99%

A non-volitional skeletal muscle endurance test measures functional changes associated with impaired blood flow

Brandenberger

Rawdon

Armstrong

et al. 2023

Journal of Rehabilitation and Assistive Technologies Engineerin

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Introduction: An electrically stimulated intermittent fatigue test using mechanomyography was recently proposed as a possible tool for detecting clinically relevant changes in muscle function. This study was designed to determine whether the proposed test can detect additional fatigue when it should be present. Methods: Subjects ( n = 10) underwent two trials each (occluded and normal blood flow) with a standardized fatigue protocol on the Ankle Dorsiflexors (AD) and Wrist Extensors (WE) using a clinical electrical stimulator. Results: Mean normalized twitch acceleration was strongly predictive of mean normalized torque ( R2 = 0.828). The WE experienced lower twitch magnitudes throughout the tourniquet trial (10.81 ± 1.25 m/s2) compared to normal blood flow (18.05 ± 1.06 m/s2). The AD twitches were overall reduced in the tourniquet trial (3.87 ± 0.48 m/s2) compared with the control trial (8.57 ± 0.91 m/s2). Conclusion: Occluding blood flow to a muscle should cause greater muscle fatigue. The ability to detect reduced contraction magnitudes during an electrically stimulated fatigue protocol resulting from low blood flow suggests the proposed test may be capable of detecting clinically relevant muscle deficits.

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Effect of continuous and intermittent blood flow restriction deep-squat training on thigh muscle activation and fatigue levels in male handball players

Wang,

Li,

Tongtong

et al. 2023

Sci Rep

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We aimed to investigate acute changes before and after low-intensity continuous and intermittent blood flow restriction (BFR) deep-squat training on thigh muscle activation characteristics and fatigue level under suitable individual arterial occlusion pressure (AOP). Twelve elite male handball players were recruited. Continuous (Program 1) and intermittent (Program 2) BFR deep-squat training was performed with 30% one-repetition maximum load. Program 1 did not include decompression during the intervals, while Program 2 contained decompression during each interval. Electromyography (EMG) was performed before and after two BFR training programs in each period. EMG signals of the quadriceps femoris, posterior femoral muscles, and gluteus maximus, including the root mean square (RMS) and normalized RMS and median frequency (MF) values of each muscle group under maximum voluntary contraction (MVC), before and after training were calculated. The RMS value under MVC (RMSMVC) of the rectus femoris (RF), vastus medialis (VM), vastus lateralis (VL), and gluteus maximus (GM) decreased after continuous and intermittent BFR training programs, and those of the biceps femoris (BF) and semitendinosus (SEM) increased; The RMS standard values of the VL, BF, and SEM were significantly increased after continuous and intermittent BFR training (P < 0.05), The RMS value of GM significantly decreased after cuff inflating (P < 0.05). The MF values of RF, VM, VL, and GM decreased significantly after continuous BFR training (P < 0.05). Continuous BFR deep-squat training applied at 50% AOP was more effective than the intermittent BFR training program. Continuous application of BFR induces greater levels of acute fatigue than intermittent BFR that may translate into greater muscular training adaptations over time.

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Cardiovascular Response to Low-Intensity Walking with Restricted Leg Muscle Blood Flow

Cited by 22 publications

References 0 publications

Effects of Blood Flow Restriction Training on Blood Perfusion and Work Ability of Muscles in Elite Para-alpine Skiers

Effects of Blood Flow Restriction Training on Blood Perfusion and Work Ability of Muscles in Elite Para-alpine Skiers

A non-volitional skeletal muscle endurance test measures functional changes associated with impaired blood flow

Effect of continuous and intermittent blood flow restriction deep-squat training on thigh muscle activation and fatigue levels in male handball players

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