Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2005) 04, 85 - 94

Research article
A Comparison of Upper-Extremity Reaction Forces between the Yurchenko Vault and Floor Exercise
Matthew K. Seeley1, , Eadric Bressel2
Author Information
1 University of Kentucky, USA
2 Utah State University, USA

Matthew K. Seeley
‚úČ Biodynamics Lab/Wenner-Gren Center for Biomedical, Engineering, Room 50, 600 Rose Street, Lexington, KY 40506-0070, USA
Email: mkseel2@uky.edu
Publish Date
Received: 04-10-2004
Accepted: 24-02-2005
Published (online): 01-06-2005
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ABSTRACT

The purpose of this study was to examine reaction forces transmitted to the upper extremities of high-level gymnasts during the round-off phase of the Yurchenko vault. A secondary purpose of this study was to compare reaction forces during the Yurchenko vault to reaction forces observed in a tumbling pass during the floor exercise. Ten high-level, female gymnasts volunteered to participate. Conditions of the independent variable were the Yurchenko vault and floor exercise; dependent variables were peak vertical and peak anterior-posterior reaction forces. Each participant performed three trials of both conditions with the trail hand contacting a force platform. Vertical and anterior-posterior reaction forces, normalized to body weight, were greater (p < 0.05) during the round-off phase of the Yurchenko vault (2.38) than during the floor exercise round-off (2.15). Vertical reaction forces during the round-off phase of the Yurchenko vault and floor exercise round-off are similar to reaction forces transmitted to upper extremities during other gymnastic skills and ground reaction forces transmitted to lower extremities while running and walking at various speeds. Results of this study reveal a need for further research considering methods aimed at reducing reaction forces transmitted to the upper extremities during the Yurchenko vault and floor exercise.

Key words: Gymnastics injuries, biomechanics, vaulting kinetics, ground reaction forces


           Key Points
  • Despite high difficulty and increased risk, a dearth of information exists concerning reaction forces transmitted to upper-extremities of high-level gymnasts performing the Yurchenko vault.
  • Reaction forces experienced by high-level gymnasts performing the Yurchenko vault are relatively high; aforementioned forces are comparable to forces transmitted to lower-extremities during various activities and may be responsible for upper-extremity injury.
  • Reaction forces observed during this study will serve as a baseline in the evaluation of methods purporting to reduce forces transmitted to upper-extremities during the Yurchenko vault.
 
 
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