弾性および非弾性バーベルを使用した単足デッドリフト中の下肢COPと筋肉活性化の比較
1Department of Sports Health Convergence, Busan University of Foreign Studies, Busan 46234, Republic of Korea.
Sports (Basel, Switzerland)
|August 27, 2025
まとめ
弾性バーベルは,特に高速で,単足デッドリフト (SLDL) の際に姿勢の安定性と筋肉の活性化を高めます. これは弾性抵抗がバランスと怪我の予防に有益であることを示唆しています
科学分野:
- バイオメカニクスと運動生理学
- リハビリテーションとスポーツパフォーマンス
背景:
- シングル・レッグ・デッドリフト (SLDL) は,片側トレーニングの重要な演習です.
- SLDLの安定性と筋肉の関与に影響を与える要因を理解することは,トレーニングとリハビリテーションを最適化するために不可欠です.
研究 の 目的:
- SLDLの間,ボリュームタイプ (弾性対非弾性) と持ち上げ速度が姿勢の安定性と下肢の筋肉の活性化に及ぼす影響を調べる.
- 弾性バーベルが非弾性バーベルに比べて性能と安定性を高める優位性があるかどうかを判断する.
主な方法:
- 健康な成人の27人は,弾性および非弾性バーベルで通常の速度,高速速度,およびパワー速度でSLDLを行いました.
- 圧力の中心 (COP) 位移と下肢の筋肉の電気ミオグラフィ (EMG) 活動を測定した.
主要な成果:
- 弾性バーベルは圧力の中心 (COP) の位移を大幅に減らし,姿勢の安定性を改善しました.
- 下肢の重要な筋肉 ( gluteus medius, biceps femoris, semitendinosus, gastrocnemius) で,特にパワースピードで,弾性バーベルで,より高いEMG活性化が見られた.
- バルベルのタイプとスピードの間の有意な相互作用は, gluteus medius,semitendinosus,およびtibialis anteriorの活性化で観察されました.
結論:
- 弾性バーベルは,特により速い持ち上げ速度で,SLDLの間,姿勢制御と神経筋肉の活性化を高めます.
- この発見は,弾性抵抗を動的バランスと傷害予防戦略に組み込むことを支持しています.
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