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Biosensors & Bioelectronics

ISSN: 2155-6210

Open Access

Is There a General Motor Program for Right Versus Left Hand Throwing in Children?

Abstract

Jerry R. Thomas, Jacqueline A. Alderson, Katherine T. Thomas, Amity C. Campbell, W. Brent Edwards, Stacey Meardon and Bruce C. Elliott

The purpose of this study was to determine if a general motor program controlled some or all aspects of overhand throwing. Using a 12 camera Vicon motion analysis system to record data from body markers, a group of 30 Australian Aboriginal children 6-10 years of age threw with maximal effort into a large target area. Data were reduced and analyzed for numerous variables and correlations were calculated between dominant and non-dominant side variables that were deemed reliable. Results indicated that five variables showed significant dominant to non-dominant correlations. However, only two of the five were entered into both multiple regressions to predict horizontal ball velocity for the dominant vs. non-dominant sides. The variables entered suggested that more gross aspects of the movement (stride
distance and pelvis flexion) were both correlated from dominant to non-dominant sides and predicted horizontal ball velocity. Thus, the general motor program does not appear to control the more complex and coordinated parts of the throwing motion.

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