Effects of Combined Training Programs on Force-Velocity Relation and Power Output in Human Muscle

Abstract

The effects of different training programs on the force-velocity relation and the maximum power output from the elbow flexor muscles were examined in eighteen male adults. The subjects were divided into three equal groups (G 30, G30 + 0, G 30+100). Training for G 30 was performed with ten repetitions at 30% P0 (P0: maximum strength), for G30 + 0 with five repetitions at 30% P 0 and five contractions with no load (0 % P0), and for G 30+ 100 with five repetitions at 30% P0 and five isometric contractions (100% P0). Maximum power was increased significantly in all groups after training. The amounts of power increase tended to be greatest for G 30+100, followed by G 30 + 0 and G 30. A significant difference was observed between G 30 + 100 and G 30 + 0. Maximum strength increased most in G 30 + 100, followed by G30 and G30 + 0. The strength gain in G 30 + 100 was significantly greater than that in G30. Maximum velocity increased significantly in all groups. No significant difference in velocity gain was observed between any pair of groups. These results suggest that isometric training at maximum strength (100% P0) appears to be a more effective form of supplementary training to increase power production than would no load training at maximum velocity. © 1995, The Japanese Society of Physical Fitness and Sports Medicine. All rights reserved.