The Effect of 8-Week Nordic Hamstring Exercise on Hamstring Quadriceps Ratio and Hamstring Muscle Strength

Zait Burak Aktuğ, Ali Kerim Yılmaz, Serkan İbiş, Hasan Aka, Cengiz Akarçeşme, Tamer Sökmen


The aim of the study is to investigate the effect of 8-week Nordic Hamstring (NH) exercise on hamstring/quadriceps
ratio (H/Q) and hamstring muscle strength. 22 amateur soccer players participated in the study. Soccer players were
divided into two groups: the control group (CG) (n = 11) who only practiced soccer training and the Nordic
Hamstring exercise group (NHEG) (n = 11) who performed NH in addition to soccer training. The isokinetic knee
muscle strength of the soccer player was measured twice at the beginning of the study and after the 8 week NH
exercise. An isokinetic dynamometer was used to determine isokinetic knee strengths of soccer players. The
difference between pre-test and post-test results of isokinetic knee muscle strength of soccer players was determined
by Wilcoxon test. According to the results obtained, it was found that the H/Q ratio (at 180ºs-1 and 240ºs-1 angular
velocities) and hamstring muscle strength (60ºs-1, 180ºs-1 and 240ºs-1 angular velocities) increased statistically
significantly (p<0.05). As a result, it can be stated that NH exercise is a very important factor in achieving the
desired level of H/Q ratio, which is an important factor in increasing sportive performance and thus decreasing the
risk of injury as well as increasing hamstring muscle strength.

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Copyright (c) 2018 World Journal of Education


World Journal of Education
ISSN 1925-0746(Print)  ISSN 1925-0754(Online)

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