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July 8, 2014Journal of Human KineticsOpen Access

Effects of High-Intensity Blood Flow Restriction Exercise on Muscle Fatigue

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Key result

High-intensity squats with blood flow restriction compromised muscle strength immediately after exercise, but differences were not significant compared to squats without restriction.

Why the study?

Does high-intensity blood flow restriction exercise increase muscular fatigue levels in athletes compared to exercise without restriction?

Population

12 athletes, mean age 25.95 ± 0.84 years

Comparison

High intensity squats with blood flow restriction vs High intensity squats without blood flow…

Design

RCT, randomized into two groups

Follow-up

immediately after exercise

Authors

GNGabriel Rodrigues NetoUniversidade Federal de Juiz de ForaHSHeleodório Honorato dos SantosUniversidade Federal da ParaíbaJSJuliana B. C. SousaUniversidade Federal da Paraíba

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Implication

High-intensity BFR squats compromise strength similarly to non-BFR; confirms no added acute fatigue effect in athletes.

Study Design

Type

RCT (n=12)

Randomization

Randomized

Structured PICO

Does high-intensity blood flow restriction exercise increase muscular fatigue levels in athletes compared to exercise without restriction?

P
Population
12 athletes (mean age 26 years) randomized to high-intensity squats with or without blood flow restriction to assess acute muscle fatigue.
I
Intervention
High intensity squats with blood flow restriction (WFR) (series of free weight squats with 80% 1-RM until concentric failure)
C
Comparator
High intensity squats without blood flow restriction (NFR)
O
Outcome
Muscular fatigue levels (strength of quadriceps extensors assessed in maximum voluntary isometric contraction integrated to surface electromyogram signals)surrogate

High-intensity squats with blood flow restriction do not significantly differ from non-restricted squats in compromising muscle strength immediately after exercise.

Cite This Study

Neto et al. (2014) conducted an RCT in Muscle fatigue (n=12). High-intensity squats with blood flow restriction vs. High-intensity squats without blood flow restriction was evaluated on Muscular fatigue levels (average frequency of surface electromyogram during maximum voluntary isometric contraction). High-intensity squats with blood flow restriction compromised muscle strength immediately after exercise, but differences were not significant compared to squats without restriction.

synapsesocial.com/papers/6a71dd1b660549caf2c65026https://doi.org/10.2478/hukin-2014-0044
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Acute Effects of Blood Flow Restriction on Muscle Activity and Endurance During Fatiguing Dynamic Knee Extensions at Low Load2009 · 191 citations
  2. 2Neuromuscular Function after a Bout of Low-Load Blood Flow–Restricted Exercise2013 · 134 citations
  3. 3The Use of Occlusion Training to Produce Muscle Hypertrophy2009 · 204 citations
  4. 4EMG/FORCE RELATIONS AND FATIGUE OF HUMAN VOLUNTARY CONTRACTIONS1981 · 327 citations