Eccentric/concentric training of ankle evertor and dorsiflexors in recreational athletes: muscle latency and strength.
The aim of this study was to investigate the effects of a combined eccentric-concentric exercise program of the ankle evertors and dorsiflexors on the latency time of the peroneus longus and tibialis anterior muscles. Twenty-four healthy male recreational athletes were admitted to this study and were randomly assigned to either the exercise group (n = 12) or the control group (n = 12). Subjects in the exercise group performed an isokinetic exercise program of the ankle evertors and dorsiflexors in a combined eccentric-concentric mode for 3 days per week for 6 weeks. Before and after the exercise program, muscle reaction times of the peroneus longus and tibialis anterior muscles to sudden supinating maneuvers on a tilting platform, and isokinetic strength of the ankle joint musculature were evaluated. The peroneus longus and tibialis anterior reaction times showed significant (P < 0.01-0.05) reductions following six weeks of intervention in the exercise group. Additionally, eccentric peak torques for the ankle evertor and dorsiflexors represented significant (P < 0.05) increases in the exercise group compared with the control group. The results of this study suggest that it is possible to reduce peroneal and anterior tibial reaction times following a six week eccentric/concentric isokinetic training program in healthy ankles.
Department of Sports Medicine, Bursa Sevket Yilmaz Education and Research Hospital, Bursa, Turkey.
S B
SB
Keles
U
U
Sekir
H
H
Gur
B
B
Akova
D000293:Adolescent; D000328:Adult; D000842:Ankle; D004576:Electromyography; D006801:Humans; D007593:Joint Instability / Q000517:prevention & control*; D007866:Leg; D008297:Male; D009119:Muscle Contraction / Q000502:physiology*; D053580:Muscle Strength / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D055070:Resistance Training / Q000379:methods*; D055815:Young Adult
ankle joint; isokinetic exercise; muscle strength; peroneal reaction time; tibial reaction time