Abstract
[Purpose] The aim of this study was to investigate the change in knee muscle force of younger persons after neuromuscular joint facilitation (NJF) treatment. [Subjects] The subjects were 39 healthy young people, who were divided into two groups: a NJF group and a control group. The NJF group consisted of 26 subjects (16 males, 10 females), and the control group consisted of 13 subjects (7 males, 6 females). [Methods] Participants in the NJF group received NJF treatment. We measured the maximal flexor force and the maximal extensor force during isokinetic movement of the knee joint before and after intervention in both groups. The angular velocities used were 60°/sec, 180°/sec and 300°/sec. [Results] The NJF group showed significant increases in the maximal flexor force and the maximal extensor force after the intervention. In the control group, there were no significant differences. [Conclusion] These results suggest that there is an immediate effect of NJF intervention on knee muscle force.
