The relationships between knee extensors/ flexors strength and balance control in elite male soccer players

PeerJ

Monika Grygorowicz¹  Thierry Paillard²  Jakub Marynowicz³  Robert Śliwowski³  Łukasz Jadczak³  Paweł Kalinowski³ 

[1] Department of Physiotherapy, Poznań University of Medical Sciences, Poznan, Poland;Department of Sport Sciences, University of Pau et des Pays de l’Adour, E2S UPPA, MEPS Laboratory, Tarbes, France;Department of Theory and Methodology of Team Sport Games, Poznan University of Physical Education, Poznan, Poland;

关键词: Quadriceps;    Hamstring;    H/Q ratio;    Total work;    Balance score;    Isokinetic;   

DOI  :  10.7717/peerj.12461

来源: DOAJ

【 摘 要 】

Background Strength and balance are important factors for soccer players to be successful. This study’s aim was to determine the relationship between lower-limb muscle strength and balance control in elite male soccer players (n = 77). Methods Concentric isokinetic strength (peak torque of quadriceps (PT-Q) and hamstrings (PT-H), hamstrings/quadriceps (H/Q) ratio) was measured for the dominant and non-dominant leg at angular velocities of 60°s−1and 240°s−1, as well as the total work for extensors (TW-Q) and flexors (TW-H) for both legs (at an angular velocity of 240°s−1only). Balance score (BAL score) was used for unilateral assessment of balance control using a Delos Postural System Test measurement tool. Hierarchical multiple regression analyses were performed to predict balance control using isokinetic knee strength performance for dominant and non-dominant legs. Results Final modelling included peak torque of hamstrings at 240°s−1 and peak torque of the quadriceps at 240°s−1 for the non-dominant leg (R2 = 19.6%; p ≤ 0.001) and only peak hamstring torque at 240°s−1 for the dominant leg (R2 = 11.3%; p = 0.003) as significant predictors of balance score. Conclusion Findings indicate that balance control is widely influenced by peak hamstring torque and peak quadriceps torque at high angular velocity particularly in the non-dominant leg i.e., the supporting leg in soccer players.

【 授权许可】

Unknown