Electromyographic activity of external obliques and rectus femoris muscles during reaching task

ABSTRACT

The aim of this study was to test the changes in sequential electrical activity when the reaching task is at two different points from the reaching limb with and without back support. The electrical activity of the external obliques abdominis and rectus femoris muscles was measured using surface electrode electromyography. Body shift during reaching task was measured by AMTI force plate and foot switch. The results showed the contraction of the external oblique in the side to which the movement coincided with the body shift, while the same muscle on the contralateral side has a significant role in such trunk rotation