Effect of Isometric Training on the Elbow Flexion Force Torque of Grade Five Boys

Abstract Two experiments were conducted on grade 5 boys to monitor the effects of isometric training. In the first experiment subjects were trained twice per week for 8 wk, with one group training with the elbow at 90° and the other at 60°, 90°, and 120°. In the second experiment, subjects were trained for 6 wk with the elbow at 90° only. One group trained twice per week, and the other 5 times. The training programs were all ineffective in producing a training effect, as gains in strength varied from only 0.15% to 0.75%i'wk, and no experimental group improved significantly more than its respective control group. The results of these 2 experiments are generally opposed to those previously reported, although results of at least 2 other experimental programs have suggested that young boys exhibit less positive response to isometric training than would be expected with older subjects.