Landing kinematics of horizontal bar dismounts

Paper


Geiblinger, H., McLaughlin, P. A. and Morrison, W. E.. 1996. "Landing kinematics of horizontal bar dismounts." Bauer, Tony (ed.) 13th International Symposium for Biomechanics in Sport (ISBS-1995). Ontario, Canada 18 - 22 Jul 1995 Ontario, Canada.
Paper/Presentation Title

Landing kinematics of horizontal bar dismounts

Presentation TypePaper
AuthorsGeiblinger, H. (Author), McLaughlin, P. A. (Author) and Morrison, W. E. (Author)
EditorsBauer, Tony
Journal or Proceedings TitleProceedings of the XIII International Symposium On Biomechanics In Sports
Number of Pages5
Year1996
Place of PublicationOntario, Canada
ISBN0886630215
Web Address (URL) of Paperhttps://ojs.ub.uni-konstanz.de/cpa/issue/view/ISBS1995
Conference/Event13th International Symposium for Biomechanics in Sport (ISBS-1995)
Event Details
13th International Symposium for Biomechanics in Sport (ISBS-1995)
Event Date
18 to end of 22 Jul 1995
Event Location
Ontario, Canada
Abstract

Dismounts from the horizontal bar require the dissipation of substantial velocities and therefore large forces. The maximum heights from dismounts are seen to be in the order of 4m or more. Kerwin et al. (1990) reported that maximum heights for double somersault dismounts -ranged from 3.45 to 3.73m,and for triple somersault dismounts, 3.89 to 4.08m. The purpose of this study was to investigate the biomechanical characteristics of succesful horizontal bar landings. Performances of six out of eight male finalists from the individual apparatus finals on horizontal bar at the World Gymnastic Championships1994, Brisbane, were chosen. The dismounts were recorded at 50 Hz during competitions, with the video cameras positioned on the catwalks above the floor of the competition venue. The analysis included mean and standard deviations of selected kinematic and temporal parameters in order to identify successful competition landing techniques. The recordings of the individual dismounts and subsequent landing performances were reviewed to qualitatively investigate the completion of the last salto of the double and triple back somersaults before the landing. The double back layout dismounts showed aback arched shape for most of the flight phase before re-piking in preparation for the landing. Analysis of the data revealed a mean maximum CM height during dismount, before the landing, of 3.06 m and an impact velocity at landing of-6.48 d s . Brueggemann et al. (1994), reported mean release velocities of 4.79 st 0.33 m/s for double tucked back somersault, 4.04 f 0.1 m/s for double layout back somersault, and 5.08 f 0.31 d s for triple tucked back somersault dismounts, which compares to the impact velocity of this study. The knee angle at landing was 156 inches and minimum knee angle during landing was 87 inches. This available range of motion of 69 inches knee flexion with a landing phase duration of 0.14sec7 was a significant factor for the preparation phase of successful landings. The mean CM to ground contact and the horizontal was 87 inches. Trunk to horizontal at landing was 134 inches, and thigh to horizontal at landing was 107 inches. Selected parameters of the results presented in this study may be used to form a representative biomechanical profile for horizontal bar landings.

Keywordslanding kinematics; dismounts; horizontal bar
ANZSRC Field of Research 2020420799. Sports science and exercise not elsewhere classified
420701. Biomechanics
Public Notes

© 1996: The International Society for Biomechanics in Sport.

Byline AffiliationsVictoria University of Technology
Institution of OriginUniversity of Southern Queensland
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