男女一流自転車競技選手における筋の形態的特徴と自転車エルゴメータのパワー発揮能力との関係

• 池田 祐介

  新潟医療福祉大学

• 高嶋 渉

  岐阜県スポーツ科学トレーニングセンター

• 本間 俊行

  立命館大学

• 高橋 英幸

  国立スポーツ科学センター

• 村田 正洋

  公益財団法人日本自転車競技連盟

書誌事項

タイトル別名

• Relationship between muscle morphological characteristics and pedaling power for elite track cyclists
• ダンジョ イチリュウ ジテンシャ キョウギ センシュ ニ オケル スジ ノ ケイタイテキ トクチョウ ト ジテンシャ エルゴメータ ノ パワー ハッキ ノウリョク ト ノ カンケイ

抄録

  The purpose of this study was to clarify the relationship between the cross-sectional area (CSA) of the trunk and thigh muscles and power during maximum pedaling, and to investigate gender differences in trunk and thigh muscle sizes in cyclists. The subjects were 12 male and 9 female cyclists. Male cyclists completed 10 seconds of maximum pedaling using 3 different loads of 3, 7, and 11 kp, and female cyclists underwent the same test using loads of 2, 6, and 10 kp. The CSA of the trunk and thigh muscles was measured using magnetic resonance imaging. The relative values of the CSA were divided by the lean body mass (LBM)^0.67, and the area of each muscle was calculated as a percentage of the total muscle cross-sectional area in the trunk and thigh. These relative values for the vastus medialis, sartorius, and psoas major were significantly greater in male than in female cyclists. The value of the maximal pedaling power (P_max) relative to body mass (BM) ranged from 17.3 to 22.5 W/kg in male cyclists, and from 14.4 to 17.1 W/kg in female cyclists. The value of the mean power during 10 seconds of maximal pedaling (P_mean) divided by the LBM was significantly greater in male cyclists than in female cyclists at all loads. P_mean was shown to be closely correlated with the CSA of the trunk and thigh in male cyclists, whereas the relationship between P_mean and CSA in female cyclists was different from that in male cyclists. For male cyclists, significant positive correlations were observed between P_mean and the CSA of the thigh muscles, the psoas major, and the erector spinae at loads of 3 and 7 kp. In addition, the optimal pedaling rate at which P_max was attained was significantly correlated with the CSA of the psoas major. These results indicate that hip flexion strength is an important factor for improving the sprint performance of highly trained male cyclists, while the extension strength of the knee and hip joints is clearly important for exerting a high P_max.<br>

収録刊行物

• 体育学研究

  体育学研究 58 (2), 539-555, 2013

  一般社団法人 日本体育・スポーツ・健康学会

キーワード

• 磁気共鳴画像法
• 筋横断面積
• 短離のパフォーマンス

詳細情報

• CRID: 1390282679077248128
• NII論文ID: 130004801264
• NII書誌ID: AN00409623
• DOI: 10.5432/jjpehss.12064
• ISSN: 18817718
• ISSN: 04846710
• NDL書誌ID: 025090413
• Web Site: http://id.ndl.go.jp/bib/025090413
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025090413
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可