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Scaling of Joint Motion and Muscle Activation for 3-Dimensional Control of Reach Extent.
- Source :
-
Journal of Motor Behavior . 2022, Vol. 54 Issue 2, p222-236. 15p. 1 Diagram, 1 Chart, 5 Graphs. - Publication Year :
- 2022
-
Abstract
- This study investigated the scaling of upper arm kinematics, joint motion, and muscle activation for three-dimensional (3D) reaches to targets of increasing distance. Fifteen participants completed 108 total reaches to targets placed 7, 14, and 21 cm across midline. Peak velocity, acceleration, and time to peak velocity scaled to both target and movement distance. Shoulder and elbow excursion scaled to target distance and were highly coordinated. Anterior deltoid activation scaled to both target and movement distance in the early and late phases of reach control. Biceps and triceps activation scaled to movement distance primarily in the late phase. Scaling of these outcome variables provides a model for understanding the control of reach distance in a 3D environment. [ABSTRACT FROM AUTHOR]
- Subjects :
- *KINEMATICS
*VELOCITY
*ELBOW
Subjects
Details
- Language :
- English
- ISSN :
- 00222895
- Volume :
- 54
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Journal of Motor Behavior
- Publication Type :
- Academic Journal
- Accession number :
- 155283935
- Full Text :
- https://doi.org/10.1080/00222895.2021.1941737