Abstract
4/2021
vol. 38
Original paper
Acute impact of blood flow restriction on strength-endurance performance during the bench press exercise
- Institute of Sport Sciences, Jerzy Kukuczka Academy of Physical Education in Katowice, Poland
- Postgraduate Program in Physical Education, University of Juiz de Fora (UFJF), Juiz de Fora, Brazil
- Study Group and Research in Neuromuscular Responses, Federal University of Lavras (UFLA), Lavras, Brazil
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Poland
- Faculty of Physical Education, Gdansk University of Physical Education and Sport, Gdansk, Poland
- Department of Sport Games, Faculty of Physical Education and Sport, Charles University, Prague, Czech
Biol Sport. 2021;38(4):653-658.
Online publish date: 2021/03/05
The main goal of the present study was to evaluate the acute effects of blood flow restriction (BFR) at 70% of full arterial occlusion pressure on strength-endurance performance during the bench press exercise. The study included 14 strength-trained male subjects (age = 25.6 ± 4.1 years; body mass = 81.7 ± 10.8 kg; bench press 1 repetition maximum (1RM) = 130.0 ± 22.1 kg), experienced in resistance training (3.9 ± 2.4 years). During the experimental sessions in a randomized crossover design, the subjects performed three sets of the bench press at 80% 1RM performed to failure with two different conditions: without BFR (CON); and with BFR (BFR). Friedman’s test showed significant differences between BFR and CON conditions for the number of repetitions performed (p < 0.001); for peak bar velocity (p < 0.001) and for mean bar velocity (p < 0.001). The pairwise comparisons showed a significant decrease for peak bar velocity and mean bar velocity in individual Set 1 for BFR when compared to CON conditions (p = 0.01 for both). The two-way repeated measures ANOVA showed a significant main effect for the time under tension (p = 0.02). A post-hoc comparisons for the main effect showed a significant increase in time under tension for BFR when compared to CON (p = 0.02). The results of the presented study indicate that BFR used during strength-endurance exercise generally does not decrease the level of endurance performance, while it causes a drop in bar velocity
Keywords
Occlusion, Resistance exercise, Cuff, Velocity of movement, Sport performance
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