The Relationship between the Hamstring-to-Quadriceps Ratio and Jumping and Sprinting Abilities of Young Male Soccer Players

Gürkan Diker, Artur Struzik, Sadi Ön and Raif Zileli
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Gürkan Diker: Department of Physical Education and Sport, Faculty of Sports Science, Sivas Cumhuriyet University, Sivas 58000, Turkey
Artur Struzik: Department of Biomechanics, Wroclaw University of Health and Sport Sciences, 51-684 Wrocław, Poland
Sadi Ön: Department of Coaching Education, School of Physical Education and Sports, Ahi Evran University, Kırşehir 40100, Turkey
Raif Zileli: Department of Child Development, Faculty of Health Science, Bilecik Şeyh Edebali University, Bilecik 11000, Turkey

IJERPH, 2022, vol. 19, issue 12, 1-11

Abstract: The correct torque ratio between the knee joint extensor and flexor muscle groups can effectively prevent injuries to the anterior cruciate ligament and hamstring strain. However, it is unclear whether a high torque ratio of the knee joint flexor muscles to the extensor muscles is beneficial for sport performance. Therefore, the aim of the study was to investigate the relationship between the hamstring-to-quadriceps (H/Q) ratio and sprint times (10- and 30-m) and jump heights (CMJ—countermovement jump and SJ—squat jump) in soccer players. The study examined 26 young elite soccer players (age: 18.1 ± 0.7 years; body height: 1.77 ± 0.05 m; body mass: 72.7 ± 5.7 kg). Knee joint flexor and extensor peak torques were assessed using the Cybex dynamometer (at 60°/s, 120°/s and 180°/s). Additionally, each participant performed the CMJ, SJ, and 30 m sprint. A significant relationship was obtained between the H/Q ratio (60°/s) and 30 m sprint time ( r = 0.47). The positive direction of this relationship may indicate an important role of knee joint extensors in sprinting performance. Moreover, the H/Q ratio was not significantly associated with the CMJ, SJ or 10 m sprint performance. The H/Q ratio should be considered together with the peak torque values in terms of the assessment of sprinting and jumping performance.

Keywords: CMJ; countermovement jump; H/Q ratio; isokinetics; knee joint; motor abilities; running; sport performance; squat jump; torque (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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