トレイルランナーにおける上り坂歩行経済とVO2max:超トレイルでのパフォーマンスの関係
Ignacio Martinez-Navarro1, Juan Vicente-Mampel2, Raul López-Grueso3
1Physical Education and Sports, Universitat de Valencia, Valencia, Spain.
International journal of sports medicine
|February 13, 2026
まとめ
長い歩みと深い呼吸は,超トレイルランナーの上り坂歩行効率を改善します. しかし,ピーク酸素吸収は,上り坂のウォーキングエコノミーではなく,超トレイルレースのパフォーマンスの主要な予測因子です.
科学分野:
- 運動生理学 運動生理学
- スポーツ科学 スポーツ科学
- バイオメカニクス バイオメカニクス
背景:
- ウルトラトレイルレースのパフォーマンスを影響する要因を理解することは,アスリートのトレーニングと戦略にとって極めて重要です.
- 登山歩行経済,歩行運動,呼吸器のパターンは,耐久性能の潜在的決定要因である.
研究 の 目的:
- 登山歩行経済とステップ/換気動力学との関係を調査する.
- アップヒルウォーキングエコノミーが,ウルトラ・トレイルレースにおける独立したパフォーマンス予測指標であるかどうかを判断する.
主な方法:
- 36人のウルトラ・トレイル・ランナーは,山上ピーク運動とウォーキング・エコノミー・テストを受けた.
- 歩行パラメータ (ステップ長) と呼吸器データ (潮流量) は,上り坂歩行中に測定されました.
- レースパフォーマンスは106kmの超トレイルレースタイムで評価されました.
主要な成果:
- ステップの長さと潮の量は,上り坂歩行経済 (r=0.47-0.58,p<0.01) と有意に相関していた.
- ピーク酸素摂取量だけでは,超トレイルレースのパフォーマンスの最も強い予測因子であり,その変化の79%を説明しました.
- アップヒルウォーキングエコノミーは,運動力学に関連しているが,レースパフォーマンスを独立して予測することはなかった.
結論:
- ステップの長さや潮の大きさは,上り坂を歩く際にエネルギー消費が減るという関連がある.
- ピーク酸素吸収は,上り坂を歩く経済よりも,超トレイルレースのパフォーマンスのより重要な決定因子です.
- 上昇歩行中の歩行と呼吸器の動力学は,エネルギー効率の洞察を提供しますが,独立したパフォーマンスの予測ではありません.
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