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http://dx.doi.org/10.5103/KJSB.2015.25.3.363

The Study of Joint Motion and Friction on the Floor of Poly Urethane for the Cutting Movement of Various Angles  

Moon, Gon-Sung (Department of Physical Education, College of Sciences in Education, Yonsei University)
Choi, Ji-Young (Department of Humanities & Arts, Yonsei University)
Publication Information
Korean Journal of Applied Biomechanics / v.25, no.3, 2015 , pp. 363-370 More about this Journal
Abstract
Objective : The purpose of this study was to give the basic data for the cutting movement with the various angels on the poly urethane. Method : Ten healthy men voluntarily participated in this study. A three-dimensional motion analysis system (VICON) and force plates were used to analyze the movements of the joints for the lower extremities. For the statistical analysis the IBM SPSS 21.0 was used to perform repeated measured ANOVA and post-hoc comparison result was used to perform the Scheffe and the level of significance was set up at ${\alpha}=.05$. Results : There were significant differences for the time required for the increasing angles of the cutting movement(p<.05). In addition, there were significant differences for the maximum dorsiflexion, plantarflexion of ankle joint, maximum flexion of knee joint and hip joint with the increasing the angles of cutting movement(p<.05). Also, there were significant differences for the maximum adduction and abduction angle of the hip joint with the increasing of the angles of cutting movement. There was signigicant difference for the resultant utilized coefficient of friction(RuCOF) for the increasing angles of cutting movement(p<.05). Conclusion : There was a pattern to increase the coefficient friction with the angle of cutting direction. Also, it would be possible to use the poly urethane for the outdoor floor with the results of this study.
Keywords
Cutting movement; Poly urethane; Coefficient of friction; Slip;
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Times Cited By KSCI : 3  (Citation Analysis)
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