Background Lower-extremity strength profile can be used in injury prevention, conditioning and rehabilitation of volleyball players.
Objectives The goals were: (1) to describe the concentric and eccentric quadriceps (Q) and hamstrings (H) muscle function in volleyball players, (2) to evaluate the differences in Q and H strength, strength ratios and bilateral strength asymmetry among age groups, playing positions and playing levels, (3) to compare bilateral strength asymmetry in Q and H muscles in two different contraction modes.
Design Controlled laboratory study.
Setting Competitive elite level.
Participants and intervention 95 professional male volleyball players were tested on an isokinetic machine at 60°/sec to assess concentric and eccentric Q and H strength. We also calculated strength ratios and bilateral strength asymmetries.
Results Multivariate analysis of variances indicated significant main effect of playing level on relative PT (p=0.001) and strength ratios (p<0.05). International-level players had significantly (p<0.05) higher H strength and dynamic control ratio (DCR) of the right leg compared to the first and/or second national division players. There were no signs of bilateral strength asymmetry regardless of muscle group tested and contraction mode.
Conclusions Our results suggest that right H strength and DCR could be important for successful volleyball performance. Descriptive data about Q and H muscle function can be used as guidelines for coaches and therapists during training and rehabilitation of male volleyball players.
Statistics from Altmetric.com
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.