Muscle activities and joint rotations were examined at the shoulder, elbow, and wrist joints for pointing movements to targets in the horizontal plane. In such movements, multiple arm configurations are possible for a given target location. Thus, starting from the same initial configuration and for
Muscle activity for initiation of planar, two-joint arm movements in different directions
โ Scribed by Z. Hasan; G. M. Karst
- Publisher
- Springer-Verlag
- Year
- 1989
- Tongue
- English
- Weight
- 491 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0014-4819
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In this study a simple model of a two segmented arm with only two muscles is used to study an underarm throw and an overarm stroke. There is a uniarticular shoulder muscle and an elbow muscle with facultatively an additional moment arm on the shoulder. The effect of changing the shoulder moment of t
Adjustment of arm posture associated with rapid wrist movements was studied by EMG analysis. Seven healthy adults, seated and holding their right arm with the shoulder in a neutral position with the elbow in 90 degrees flexion and the wrist position neutral, were instructed to flex or extend the wri