Izvorni znanstveni članak
Bilateral Concentric and Eccentric Isokinetic Strength Evaluation of Quadriceps and Hamstrings in Basketball Players
Vedran Hadžić
; University in Ljubljana, Faculty of Sport, Department of Sports Medicine, Ljubljana, Slovenia
Frane Erčulj
; University in Ljubljana, Faculty of Sport, Department of Basketball, Ljubljana, Slovenia
Mitja Bračič
; University in Ljubljana, Faculty of Sport, Ljubljana, Slovenia
Edvin Dervišević
; University in Ljubljana, Faculty of Sport, Department of Sports Medicine, Ljubljana, Slovenia
Sažetak
The aim of the study was to investigate the existence of bilateral asymmetry in healthy basketball players of different age, as evidence suggest that it may be an age related phenomenon which develops over the years of training. Fifty healthy basketball players (26 males and 24 females) participated in the study. The quadriceps (Q) and the hamstring (H) were tested concentrically and eccentrically at 60°/s. The main outcome measure was body weight normalized peak torque (PT/BW). We have also calculated different strength ratios as well as the bilateral strength differences. The main findings indicate that (1) bilateral strength asymmetry is noticeable in senior basketball players relating predominantly to the Q (2) some gender related strength differences were mainly associated with the concentric strength of Q and H (3) when corrected for weight and height, age related strength differences were relatively small and observed only with re- spect to H strength in males (4) superiority of eccentric over concentric strength values of Q and H was more pronounced in females than in males. Strength asymmetry in senior basketball players may be more attributable to the better neuro- muscular control during vertical jumping than to the strength itself, as there were no age related differences between ca- dets and senior players.
Ključne riječi
knee; muscle; strength; isokinetic; basketball
Hrčak ID:
118282
URI
Datum izdavanja:
30.9.2013.
Posjeta: 1.382 *