論文

査読有り
2014年4月

Inter- and intra-lower limb joint coordination of non-expert classical ballet dancers during tiptoe standing

HUMAN MOVEMENT SCIENCE
  • Hiroko Tanabe
  • ,
  • Keisuke Fujii
  • ,
  • Motoki Kouzaki

34
開始ページ
41
終了ページ
56
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.humov.2013.12.003
出版者・発行元
ELSEVIER SCIENCE BV

The main objective of this study was to compare ballet dancers' and non-dancers' joint coordination during tiptoe standing. Nine female non-expert ballet dancers and nine female non-dancers were asked to perform heel-toe and tiptoe standing for approximately 30 s, during which the center of pressure (COP) and kinematic data from the metatarsophalangeal, ankle, knee, and hip joints were measured. Principal component analysis was performed on the angular displacements to determine joint coordination. The weighting vectors suggested that dancers' ankle and knee joints fluctuated in-phase in the anteroposterior direction, whereas all combinations of adjacent joints had anti-phase coordination for non-dancers. In addition, there was a significant difference in the intra-joint coordination pattern between groups. In particular, dancers' metatarsophalangeal (MP) and ankle joints tended to sway to the left-front or right-rear. However, there were no differences between the groups in the path length or rectangular COP. These results suggest that dancers maintained quiet postures via a decrease in the mechanical degree of freedom and that postural expertise may not be determined from a traditional COP analysis, even during unstable tiptoe standing. This in-phase coordination, which has an arch-like configuration, could be characteristic of dancers' lithe legs. (C) 2014 Elsevier B.V. All rights reserved.

Web of Science ® 被引用回数 : 6

リンク情報
DOI
https://doi.org/10.1016/j.humov.2013.12.003
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000337009900004&DestApp=WOS_CPL

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