The purpose of this study was to measure an strengths of electromyogram activity of anterior tibial muscle, gastrocnemius muscle, medial vastus muscle during take-off, air-borne, and landing phase in the 5th hurdle section. gastrocnemius. The subjects...
The purpose of this study was to measure an strengths of electromyogram activity of anterior tibial muscle, gastrocnemius muscle, medial vastus muscle during take-off, air-borne, and landing phase in the 5th hurdle section. gastrocnemius. The subjects for the paper included two general hurdlers and college one's. The result of measurement is as follows.
1. The analysis of the agonist muscle in the 5th hurdle
1) The variation of gastrocnemius muscle is the hightest during take off of lead leg and the variation degree of cut leg is put in order, gastrocnemius muscle, medial vastus muscle, anterior tibial muscle.
2) The variation degree of both lead leg and cut leg during air-bone phase is put in order, medial vastus muscle, gastrocnemius muscle, anterior tibial muscle.
3) The variation of medial vastus muscle is the lowest during landing phase of lead leg and there is little variation difference about cut leg among gastrocnemius muscle, medial vastus muscle, and anterior tibial muscle.