Abstract:
PURPOSE:The requirement for postural stability during the performance of motor skills has been clearly demonstrated in infants, but the necessity for such a postural substrate is not well documented in adults. The present study investigated the role of postural stability during a ballistic ball-kicking task in adults by providing varying degrees of external postural support. METHOD:In the 1st experiment, 30 participants performed 20 maximal-velocity kicks under each of 3 conditions: grasping a rigid stable handle, light fingertip touch, and grasping a suspended elastic tube. A 2nd experiment with 16 participants varied the position of the stable handle to examine if the handle position in Experiment 1 might simply act as a fulcrum to enhance torque generation. RESULTS:In Experiment 1, ball velocity was significantly higher in the stable-grasp condition in both men and women with the men showing greater improvement relative to the other conditions. Experiment 2 showed that the position of the stable handle did not significantly affect kicking velocity, indicating that the handle was not simply acting as a fulcrum during the kick. CONCLUSION:Together, the findings suggest that postural stability may be a rate limiter in the performance of dynamic motor tasks in adults.
journal_name
Res Q Exerc Sportjournal_title
Research quarterly for exercise and sportauthors
Sidaway B,Bouchard M,Chasse J,Dunn J,Govoni A,McPherson B,Roy K,Anderson DIdoi
10.1080/02701367.2017.1303134subject
Has Abstractpub_date
2017-06-01 00:00:00pages
215-222issue
2eissn
0270-1367issn
2168-3824journal_volume
88pub_type
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