Isokinetic Measurement of Maximal Muscle Power during Leg Cycling: A Comparison of Adolescent Boys and Adult Men

This study investigated the maximal isokinetic muscle power characteristics in adolescent boys and adult men by comparing voluntary maximal efforts on a novel isokinetic cycling ergometer. Thirteen boys and 12 men performed between seven and ten 6-s (unpaced, maximal) sprints at crank velocities ranging from 80–170 rev · min−1 (8.3–17.8 rad · s−1). Maximum power over a single revolution (Pmax) and mean power for the total of complete revolutions in 5 s (MP5s) were recorded, and the optimal crank velocity for both parameters was calculated for each subject. Men’s Pmax were significantly higher (P 0.90) for both Pmax and MP5s. Absolute differences in isokinetic power between adolescent boys and adult men cannot be attributable to the differences in crank pedal velocities as optimal...