Is There a General Motor Program for Right Versus Left Hand Throwing in Children?
- *Corresponding Author:
- Jerry R. Thomas
College of Education
University of North Texas Denton
E-mail: [email protected]
Received Date: August 10, 2011; Accepted Date: August 27, 2011; Published Date: August 29, 2011
Citation: Thomas JR, Alderson JA, Thomas KT, Campbell AC, Edwards WB, et al. (2011) Is There a General Motor Program for Right Versus Left Hand Throwing in Children? J Biosens Bioelectron S1:001. doi: 10.4172/2155-6210.S1-001
Copyright: © 2011 Thomas JR, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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.