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Duration Dependent Effect of Static Stretching on Quadriceps and Hamstring Muscle Force

Sports Sciences Faculty, Gazi University, 06560 Ankara, Turkey
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Sports 2018, 6(1), 24; https://doi.org/10.3390/sports6010024
Received: 14 January 2018 / Revised: 7 March 2018 / Accepted: 12 March 2018 / Published: 13 March 2018
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PDF [197 KB, uploaded 13 March 2018]

Abstract

The aim of this study was to determine the acute effect of static stretching on hamstring and quadriceps muscles’ isokinetic strength when applied for various durations to elite athletes, to investigate the effect of different static stretching durations on isokinetic strength, and finally to determine the optimal stretching duration. Fifteen elite male athletes from two different sport branches (10 football and five basketball) participated in this study. Experimental protocol was designed as 17 repetitive static stretching exercises for hamstring and quadriceps muscle groups according to the indicated experimental protocols; ((A) 5 min jogging; (B) 5 min jogging followed by 15 s static stretching; (C) 5 min jogging followed by 30 s static stretching; (D) 5 min jogging, followed by static stretching for 45 s). Immediately after each protocol, an isokinetic strength test consisting of five repetitions at 60°/s speed and 20 repetitions at 180°/s speed was recorded for the right leg by the Isomed 2000 device. Friedman variance analysis test was employed for data analysis. According to the analyzes, it was observed that 5 min jogging and 15 s stretching exercises increased the isokinetic strength, whereas 30 and 45 s stretching exercises caused a decrease. View Full-Text
Keywords: static stretching; isokinetic strength; hamstring; quadriceps static stretching; isokinetic strength; hamstring; quadriceps
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Alizadeh Ebadi, L.; Çetin, E. Duration Dependent Effect of Static Stretching on Quadriceps and Hamstring Muscle Force. Sports 2018, 6, 24.

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