外的負荷が肘関節角度調節能力に与える影響

抄録

The purpose of this study was to compare the ability to control elbow joint angle in imposed external load condition and in no load condition, and to provide fundamental data for the ability to control elbow joint angle that imposed external load. Fourteen male college students (21 .4 ± 0 0.7 yr s) participated in the experiment experiment. The participantparticipants attempted to flex their elbow to a target angle with their eyes closed closed, with and without external load load. Under the external load condition condition, 6 levels of external load starting at 10 %1RM with 10 10% increments up to 60 60%1RM were applied applied. The target angles were 15º , 30º , 45º , 60º , and 90º . We calculated the difference between the target angle and actual joint angle angle. As a result, r egardless of the external load load, participant s we re able to control their elbow joint angl e at the stages of target angles angles. They were able to grade their elbow joint angle angle. In target 15º , the absolute error was bigger than in the target 30º . %iEMG of biceps and triceps were smaller as target angles became bigger bigger, and %iEMG were bigger as external loads became bigger bigger. It was suggested that external load could not influence on the ability to control elbow joint angle.