Effects of low-load resistance training with blood flow restriction on muscle size and strength of professional soccer players with muscle imbalance

Blood flow restriction and muscle strength imbalance

  • Benedito Sergio Denadai Human Performance Laboratory, UNESP – Rio Claro, SP
  • Felipe Oliveira Human Performance Laboratory, UNESP – Rio Claro, SP
  • Sérgio Camarda Human Performance Laboratory, UNESP – Rio Claro, SP
  • Leandro Ribeiro Human Performance Laboratory, UNESP – Rio Claro, SP
  • Camila Coelho Greco Human Performance Laboratory, UNESP – Rio Claro, SP
Keywords: Isokinetic torque; cross sectional area; magnetic resonance imaging; asymmetry.

Abstract

The purposes of this study were to determine whether low intensity resistance training combined with blood flow restriction (LI-BFR) could affect the concentric hamstrings/quadriceps muscle strength ratio (Hcon:Qcon) of professional soccer players with Hcon:Qcon imbalance (Study 1), and whether hamstrings strength response observed after LI-BFR is associated with muscle hypertrophy (Study 2). In the Study 1, athletes were randomly divided into a training group (n = 6) and a control group (n = 5). In the Study 2, all athletes (n = 11) have performed the training programme. The athletes participated in a 6-week (twice a week) supervised training programme (unilateral knee flexion at 30% 1RM) consisting of 12 training sessions. Peak concentric torque of knee flexors (+8%; P < 0.001) and Hcon:Qcon (+9%; P < 0.01) were significantly increased after LI-BFR. Moreover, the cross sectional area (CSA) of the hamstrings was significantly increased (+10%; P < 0.001) after LI-BFR. Thus, the addition of hamstrings strength training programme using LI-BFR during preseason is able to enhance both Hcon:Qcon and hamstrings CSA of professional soccer players with Hcon:Qcon imbalance.

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Published
2017-12-21
How to Cite
1.
Denadai B, Oliveira F, Camarda S, Ribeiro L, Greco C. Effects of low-load resistance training with blood flow restriction on muscle size and strength of professional soccer players with muscle imbalance. IJAEP [Internet]. 21Dec.2017 [cited 22Aug.2018];6(4):7-3. Available from: http://www.ijaep.com/index.php/IJAE/article/view/194
Section
Applied Exercise Physiology