Abstract
Purpose: To measure isokinetic peak torque during elbow, knee and trunk extension and flexion and muscle endurance during elbow and knee extension.Method: Muscle endurance and peak torque were meas ...
Highlights
Isometric muscle strength in children and adolescents have been measured since long
The relative endurance in both the elbow and knee muscles was evaluated as the percent peak torque decline from the first to the 50th consecutive extension contraction at a speed of 180 degrees/sec according to Thorstensson and Karlsson [26]
Differences between boys and girls during elbow extension and flexion absolute peak torque (N.m) starts at age 10, while for the knee corresponding peak torque differences start at age 14
Summary
Regarding the elbow extension/flexion ratio there is a significant decline from the 10th year to the 15th year age group in both boys and girls with no difference between sexes. There is no change with increasing age in both sexes in the ratio between knee and elbow values of extension and flexion, respectively, which confirms the isometric data reported by Parker, et al [15]. Boys have lower knee/elbow extension ratio than girls in all except the 8-year age group depending on the relatively higher elbow extension torque in boys compared to girls. For the elbow there is no change in fatique index between 8 to 11 years of age, but from age 11 to 15 there is a decline (P
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