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Can Conditioning Activity with Blood Flow Restriction Impact Neuromuscular Performance and Perceptual Responses to

Robson Conceição Silva1, Leandro Lima Sousa1, Hugo de Luca Correa1

  • 1Graduate Program of Physical Education, Catholic University of Brasilia, Taguatinga-DF, Brasilia 71966-700, Brazil.

Sports (Basel, Switzerland)
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Summary

Low-load exercise with blood flow restriction (BFR) did not improve muscle strength or power. Higher BFR intensity (75%) increased perceived exertion, suggesting it may not be beneficial for performance enhancement.

Keywords:
PAPPAPEacute exercise effectisokinetic testrandom crossover designresistance trainingvascular occlusion

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Area of Science:

  • Exercise Physiology
  • Sports Science
  • Biomechanics

Background:

  • Low-load exercise with blood flow restriction (BFR) is a potential method for enhancing exercise performance.
  • The optimal intensity of BFR for acute performance enhancement remains undetermined.

Purpose of the Study:

  • To investigate the acute effects of different BFR intensities on muscle strength, power, and perceived exertion.
  • To determine if low-load conditioning with BFR enhances neuromuscular performance.

Main Methods:

  • Twenty recreationally trained men participated in a randomized crossover study.
  • Three conditions were tested: control, 50% BFR, and 75% BFR.
  • Participants performed squats followed by isokinetic knee assessments and recorded perceived exertion.

Main Results:

  • No significant differences were found in peak torque, total work, or average power across conditions.
  • Session rating of perceived exertion (SRPE) was significantly higher at 75% BFR compared to 50% BFR and control.
  • No significant difference in SRPE was observed between 50% BFR and control conditions.

Conclusions:

  • Low-load conditioning activity with BFR does not acutely enhance neuromuscular performance.
  • Higher degrees of BFR intensity increase perceived exertion without improving strength or power.