An investigation of shoulder forces in active shoulder tackles in rugby union football.

Usman , J.; McIntosh , A.S.; Fréchède , B. (2011) An investigation of shoulder forces in active shoulder tackles in rugby union football. Journal of Science and Medicine in Sport / Sports Medicine Australia. ISSN 14402440

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Abstract

In rugby union football the tackle is the most frequently executed skill and one most associated with injury, including shoulder injury to the tackler. Despite the importance of the tackle, little is known about the magnitude of shoulder forces in the tackle and influencing factors. The objectives of the study were to measure the shoulder force in the tackle, as well as the effects of shoulder padding, skill level, side of body, player size, and experimental setting on shoulder force. Experiments were conducted in laboratory and field settings using a repeated measures design. Thirty-five participants were recruited to the laboratory and 98 to the field setting. All were male aged over 18 years with rugby experience. The maximum force applied to the shoulder in an active shoulder tackle was measured with a custom built forceplate incorporated into a 45kg tackle bag. The overall average maximum shoulder force was 1660N in the laboratory and 1997N in the field. This difference was significant. The shoulder force for tackling without shoulder pads was 1684N compared to 1635N with shoulder pads. There was no difference between the shoulder forces on the dominant and non-dominant sides. Shoulder force reduced with tackle repetition. No relationship was observed between player skill level and size. A substantial force can be applied to the shoulder and to an opponent in the tackle. This force is within the shoulder's injury tolerance range and is unaffected by shoulder pads.

Item Type: Article
Creators:
  1. Usman , J.(University of Malaya)
  2. McIntosh , A.S.(University of New South Wales)
  3. Fréchède , B.(University of New South Wales)
Journal or Publication Title: Journal of Science and Medicine in Sport / Sports Medicine Australia
Additional Information: Department of Biomedical Engineering, University of Malaya, Malaysia
Uncontrolled Keywords: Risk and Safety Sciences
Subjects: R Medicine
Divisions: UNSPECIFIED
Depositing User: Mr. Faizal Hamzah
Date Deposited: 03 Aug 2011 12:36
Last Modified: 03 Aug 2011 12:36
URI: http://eprints.um.edu.my/id/eprint/1922

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