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KMID : 0359420080260020146
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Korean Journal of Sports Medicine
2008 Volume.26 No. 2 p.146 ~ p.153
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Effects of Ballet Participation on Food Joint Angles, Isokinetic Strength and Proprioception in Females
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Lee Jeong-Pil
Kim Jang-Yeol
Lee Kyung-Tai
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Abstract
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The purpose of this study was to examine the effects of ballet participation on foot joint angles, isokinetic strength and proprioception of ankle in females. 12 ballet dancers and 12 normal females as a control group were participated. Standing lateral weight bearing radiographs of foot of individuals were taken and angles between bones(proximal first metatarsal-base angle(MTP), talometatarsal angle(TM), Bohler’s angle(CP)) were measured. To measure peak torque of dorsi flexors, platar flexors, invertors and evertors, isokinetic strength tests were performed with Biodex IIIⓡ(Biodex, USA). Proprioception test were performed with Biodex balance system. The results were drawn; MTP were significantly lower in ballet dancers compared with control. All of isokinetic strengths were significantly higher in ballet dancers compared with control except for the strength of right plantar flexor at 120°/sec and right invertor at 30°/sec angular velocity, whereas there were no significant differences between isokinetic strengths of right and left ankle. The level of proprioception was significantly higher in ballet dancers com- pared with control. There was significantly positive correlation between proprioception and MTP, and there were significantly negative correlation between proprioception and both isokinetic muscle strength of right dorsi flexor at 30°/sec angular velocity, right invertor at 30°/sec angular velocity and left invertor at 120°/sec angular velocity. In conclusion, ballet dance training may lead to improve in anatomical stability of ankle and to increase isokinetic muscle strength of ankle resulting in improvement of prorioception.
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KEYWORD
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Ballet dancer, Ankle stability, Proprioception, Food angle
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