高校トップレベル男子長距離走者のパフォーマンスと大腰筋の筋横断面積および最高酸素摂取量の関係

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  • Relationships between running performance and the cross–sectional area of the psoas major, and peak oxygen uptake in elite junior long–distance runners
  • コウコウ トップレベル ダンシ チョウキョリ ソウシャ ノ パフォーマンス ト ダイヨウキン ノ キン オウ ダンメンセキ オヨビ サイコウ サンソ セッシュリョウ ノ カンケイ

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The purpose of this study was to examine the relationships between running performance and the cross–sectional area of the psoas major, peak oxygen uptake, and running economy in male junior long–distance runners. The subjects were 37 male junior athletes who achieved good records in interscholastic athletic competition during 5 years (2011–2015). Their seasonal best times in a 5,000 m race (5,000m–SB) were 14:04.11 ± 0:07.25 (13:53.64–14:16.15). In a multiple regression analysis, 5,000m–SB was statistical significantly correlated with the cross–sectional area of psoas major (16.0 ± 1.7 cm2) measured on magnetic resonance imaging and peak oxygen uptake (4.25 ± 0.36 l min-1 [76.9 ± 5.8 ml min-1 kg-1]) during a lactate curve test comprising five stages. However, 5,000m–SB was not related to oxygen uptake at the work–load which was less than the load at the lactate threshold estimated by using the lactate curve test results. These results suggest that a high volume of the psoas major, the largest hip–flexor muscle, and peak oxygen uptake are among the important factors for junior long–distance runner performance.

収録刊行物

  • 体力科学

    体力科学 65 (3), 307-313, 2016

    一般社団法人日本体力医学会

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