Effect of resistance training in the improvement of hamstrings to quadriceps (H:Q) strength ratio in males and females
Objective. The purpose of this study was to examine the change in hamstrings to quadriceps (H:Q) strength ratio between males and females following a 12-week resistance training program. Design and Setting. We used a pretest-posttest experimental design to determine the amount of change produced by the training intervention in males and females. Isokinetic testing was performed on a Biodex System 3 isokinetic machine at 30°/sec, 60°/sec, 180°/sec and 240°/sec angular velocities, both before and after a 12-week training program. Subjects. Twenty eight (14 male, 14 female) university recreationally active volunteers. Variables. The dependent variables of interest were the conventional and functional hamstring to quadriceps (H:Q) strength ratios. Results. Both males and females increased their isokinetic strength of hamstrings and quadriceps at all angular velocities following resistance training program. A comparison of percent increase in conventional H:Q ratio following training revealed significant statistical differences (p< 0.05) at 30°/sec with females increasing their ratio by 66% and males by 15%. Functionally, there was a significant difference (p≤ 0.05) in percent increase between males and females at 30°/sec, 60°/sec and 180°/sec angular velocities with females increasing their H:Q ratio at greater percentage than males. Conclusion. The findings of this study showed that with similar resistance training females increased their strength ratios at greater percent than males.
Edupuganti, Pradeep, "Effect of resistance training in the improvement of hamstrings to quadriceps (H:Q) strength ratio in males and females" (2008). ETD Collection for University of Texas, El Paso. AAI1461718.