Comparison of conventional hamstring/quadriceps ratio between genders in level-matched soccer players
Abstract Objectives: The main goal of our study is to compare the hamstring/quadriceps (H/Q) ratio at different knee angles between level-matched male and female soccer players and to determine whether differences in the H/Q ratio exist between the dominant and the non-dominant leg. Methods: A cross-sectional study design was used to compare an isometric H/Q ratio and functional isokinetic ratio (between hamstring in eccentric contraction and quadriceps in concentric contraction) between males (n = 14) and females (n = 14). These ratios were studied at two different speeds of movement (60° s−1 and 180° s−1) and in five different positions (40°, 50°, 60°, 70° and 80° degrees of knee flexion). Results: Our results showed no differences in the H/Q ratio between genders. The ratio in the dominant leg showed an average of 9% higher values. The ratios were an average of 53.4% lower in positions near flexion than in positions near extension. Conclusions: For both men and women, the results showed lower ratios in the non-dominant leg compared to the dominant leg. At higher velocities, the force ratios were higher, while in more knee-flexed positions, the ratios were lower. Finally, we did not find differences in ratios between men and women.
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Centro Andaluz de Medicina del Deporte
2017
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oai:scielo:S1888-754620170001000142021-04-21Comparison of conventional hamstring/quadriceps ratio between genders in level-matched soccer playersPellicer-Chenoll,M.Serra-Añó,P.Cabeza-Ruiz,R.Pardo,A.Aranda,R.González,L.M. Muscular imbalance Isokinetic strength Soccer Strength ratios Torque Injury risk Abstract Objectives: The main goal of our study is to compare the hamstring/quadriceps (H/Q) ratio at different knee angles between level-matched male and female soccer players and to determine whether differences in the H/Q ratio exist between the dominant and the non-dominant leg. Methods: A cross-sectional study design was used to compare an isometric H/Q ratio and functional isokinetic ratio (between hamstring in eccentric contraction and quadriceps in concentric contraction) between males (n = 14) and females (n = 14). These ratios were studied at two different speeds of movement (60° s−1 and 180° s−1) and in five different positions (40°, 50°, 60°, 70° and 80° degrees of knee flexion). Results: Our results showed no differences in the H/Q ratio between genders. The ratio in the dominant leg showed an average of 9% higher values. The ratios were an average of 53.4% lower in positions near flexion than in positions near extension. Conclusions: For both men and women, the results showed lower ratios in the non-dominant leg compared to the dominant leg. At higher velocities, the force ratios were higher, while in more knee-flexed positions, the ratios were lower. Finally, we did not find differences in ratios between men and women.Centro Andaluz de Medicina del DeporteRevista Andaluza de Medicina del Deporte v.10 n.1 20172017-01-01journal articletext/htmlhttp://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S1888-75462017000100014en |
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Pellicer-Chenoll,M. Serra-Añó,P. Cabeza-Ruiz,R. Pardo,A. Aranda,R. González,L.M. |
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Pellicer-Chenoll,M. Serra-Añó,P. Cabeza-Ruiz,R. Pardo,A. Aranda,R. González,L.M. Comparison of conventional hamstring/quadriceps ratio between genders in level-matched soccer players |
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Pellicer-Chenoll,M. Serra-Añó,P. Cabeza-Ruiz,R. Pardo,A. Aranda,R. González,L.M. |
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Pellicer-Chenoll,M. |
title |
Comparison of conventional hamstring/quadriceps ratio between genders in level-matched soccer players |
title_short |
Comparison of conventional hamstring/quadriceps ratio between genders in level-matched soccer players |
title_full |
Comparison of conventional hamstring/quadriceps ratio between genders in level-matched soccer players |
title_fullStr |
Comparison of conventional hamstring/quadriceps ratio between genders in level-matched soccer players |
title_full_unstemmed |
Comparison of conventional hamstring/quadriceps ratio between genders in level-matched soccer players |
title_sort |
comparison of conventional hamstring/quadriceps ratio between genders in level-matched soccer players |
description |
Abstract Objectives: The main goal of our study is to compare the hamstring/quadriceps (H/Q) ratio at different knee angles between level-matched male and female soccer players and to determine whether differences in the H/Q ratio exist between the dominant and the non-dominant leg. Methods: A cross-sectional study design was used to compare an isometric H/Q ratio and functional isokinetic ratio (between hamstring in eccentric contraction and quadriceps in concentric contraction) between males (n = 14) and females (n = 14). These ratios were studied at two different speeds of movement (60° s−1 and 180° s−1) and in five different positions (40°, 50°, 60°, 70° and 80° degrees of knee flexion). Results: Our results showed no differences in the H/Q ratio between genders. The ratio in the dominant leg showed an average of 9% higher values. The ratios were an average of 53.4% lower in positions near flexion than in positions near extension. Conclusions: For both men and women, the results showed lower ratios in the non-dominant leg compared to the dominant leg. At higher velocities, the force ratios were higher, while in more knee-flexed positions, the ratios were lower. Finally, we did not find differences in ratios between men and women. |
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Centro Andaluz de Medicina del Deporte |
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2017 |
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http://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S1888-75462017000100014 |
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