In this study, we got the result as follows from the electromyogram(EMG) of muscles in Rectus abdominis, Exteranl oblique(R,L), Erector spine, Gluteus medius(R,L), Gluteus maximus (R,L) in moving Whisk of samba.
The comparision between the skilled an...
In this study, we got the result as follows from the electromyogram(EMG) of muscles in Rectus abdominis, Exteranl oblique(R,L), Erector spine, Gluteus medius(R,L), Gluteus maximus (R,L) in moving Whisk of samba.
The comparision between the skilled and the unskilled had been done in the previous thesis. So here the differences between players on the playing list and instructors were compared and analyzed. While the former group totally had the high level in EMG from mutually rising actions due to the movement of hip and the expression of body muscles and arms movement, the latter group had the low level from the weakness of arms movement and the expression of body.
The reason is the different system between the rate of Agonist activity and upper arms movemnet in moving hip.
1. Through the higher average os Maximum Muscle load in 8 muscles of players group than instructors group, the ability of players' muscle mobilization proves to be good. And it is thought to be concerned with the ability of expressing more active dance.
2. Through the lower average of Exteranl oblique(R), Erector spine of players group in Average Muscle load, the body movement of instructors group is relatively insufficient for coordination among muscles and the use of muscles inclines toward Exteranl oblique(R), Erector spine.
3. Through the higher level of Exteranl oblique(L) in iENG, Maximum Muscle load, Average Muscle load, it is considered that the more skillful hip movement is, the more active Exteranl oblique(L) is.
Though the level of EMG in instructors group is lower than in players group, we can't compare and estimate from only this result. The instructors have the lower level of EMG because their age and amount of exercise are different and their aim is only training players after retirement.
From comparing and studying EMG of 8 muscles in players group and instructors group, it is regarded that the body movement in harmony with arms and uppers body not limited in hip movement leads to systematic movement of the whole body and then from the mutually rising action, the hip movement can be maximized.