Comparison of Reaching Forward between Standing and Kneeling

Abstract

The aim of this investigation was to examine changes of electromyogram activity when subjects performed two kinds of reaching forward in standing and kneeling. Eleven healthy subjects with a mean age of 25.63 ± 1.86 years participated in this study. They performed reaching forward of two kinds as a motor task. Electromyography (EMG) of gluteus maximus (GM), biceps femoris (BF), rectus abdominis (RA), and erector spinae (ES) was measured in the reaching position and the distance of reach was measured. EMG of BF in kneeling was higher than in standing. Changes of EMG were shown in the two kinds of reaching forward. These results suggest that specific motor activity is facilitated by changing position and movement method.