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February 17, 2023International Journal of Environmental Research and Public HealthOpen Access

Acute Responses to High-Intensity Back Squats with Bilateral Blood Flow Restriction

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Why the study?

The acute effects of high-intensity resistance exercise with blood flow restriction on performance, fatigue, metabolic stress, and markers of inflammation, muscle damage, and angiogenesis were not well understood.

Does high-intensity resistance exercise with blood flow restriction alter performance, fatigue, and physiological markers compared to exercise without restriction in resistance-trained individuals?

Comparison

Bilateral blood flow restriction vs control during high-intensity barbell back-squats to failure

Authors

BHBjoern HornikelUniversity of AlabamaKSKeith SaffoldUniversity of AlabamaMEMichael R. EscoUniversity of Alabama

Discussion

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Overview

BFR during high-load squats may limit practical use due to greater pain and fatigue; leaves open effects on long-term adaptations.

Structured PICO

Does high-intensity resistance exercise with blood flow restriction alter performance, fatigue, and physiological markers compared to exercise without restriction in resistance-trained individuals?

P
Population
13 resistance-trained participants (four female, mean age 24.8 ± 4.7 years)
I
Intervention
Four sets of barbell back-squats (75% 1RM) to failure with blood flow restriction (bilateral 80% occlusion pressure)
C
Comparator
Control condition (same exercise without blood flow restriction)
O
Outcome
Completed repetitions, fatigue, metabolic stress (blood lactate), and markers of inflammation (IL-6), muscle damage (myoglobin), and angiogenesis (VEGF)surrogate

Blood flow restriction during high-intensity resistance exercise increases the rate of muscular fatigue, pain perception, and acute IL-6 response while reducing total work performed.

Cite This Study

Hornikel et al. (2023) studied this question.

synapsesocial.com/papers/6a72f976c9955ae7e7748fd0https://doi.org/10.3390/ijerph20043555
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Acute Responses of Low-Load Resistance Exercise with Blood Flow Restriction2024 · 2 citations
  2. 2Effects of High-Intensity Blood Flow Restriction Exercise on Muscle Fatigue2014 · 39 citations
  3. 3Microvascular Reactivity Is Greater Following Blood Flow Restriction Resistance Exercise Compared with Traditional Resistance Exercise2024 · 12 citations
  4. 4Acute Effects of Blood Flow Restriction Training on Movement Velocity and Neuromuscular Signal During the Back Squat Exercise2023 · 4 citations
  5. 5The acute muscle swelling effects of blood flow restriction2012 · 99 citations