Relationship between Musculoskeletal Mechanical Load and Foot Shape When Wearing Classical Ballet Pointe Shoes

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  • Hase Kazunori
    Faculty of Systems Design, Tokyo Metropolitan University
  • Imura Akiko
    Graduate School of Human Health Sciences, Tokyo Metropolitan University
  • Harada Takumi
    Graduate School of Systems Design, Tokyo Metropolitan University
  • Wang Sengtong
    Graduate School of Systems Design, Tokyo Metropolitan University
  • Higuchi Takahiro
    Graduate School of Human Health Sciences, Tokyo Metropolitan University

Bibliographic Information

Other Title
  • クラシックバレエのトウシューズ着用時の筋骨格系力学負荷と足型の関係
  • クラシックバレエ ノ トウシューズ チャクヨウジ ノ キンコッカクケイ リキガク フカ ト アシガタ ノ カンケイ

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Abstract

<p>The aim of this study was to evaluate a performance of phase change materials （PCM） as a tool for sports icing. We examined whether skin temperatures could be maintained in the target zones around 10℃ and 20℃ of PCM. And we investigated effects of exercise-induced heat production and skinfold thickness on the skin temperature with application of PCM. Fifteen male and twelve female volunteers were randomly divided into 10℃ or 20℃ cooling treatment groups or the control group （C10, C20, and NC, respectively） . The participants performed five sets of eight arm curl exercises with the non-dominant arm at the workload of 8 RM. Participants' dominant arms served as controls. In the cooling treatment group, PCM packs adjusted to maintain its surface temperatures at a constant temperature of 10℃ for C10 and 20℃ for C20, was applied over the skin surface above the biceps brachii of both upper-arms with a thermal insulation cover for 20 minutes after arm curl exercises. Skin temperatures at three sites in PCM applied area of both arms were monitored by using thermistors. Skin temperatures were acutely decreased in C10 and C20, and were maintained at approximately 10-12℃ （non-dominant arm: 11.0±0.1℃, dominant arm: 9.2±0.2℃） and 20-23℃ （non-dominant arm: 22.2±0.1℃, dominant arm: 20.3±0.1℃） , respectively. It is suggested that PCM would be beneficial to make tools for sports icing, although the decrease in skin temperature was tended to be affected by heat produced with the exercise and the degree of skinfold thickness.</p>

Journal

  • DESCENTE SPORTS SCIENCE

    DESCENTE SPORTS SCIENCE 42 (0), 214-221, 2022-06-20

    THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION OF SPORTS SCIENCE

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