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Updated: Sep 10, 2025

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Corticospinal Excitability Modulation During Action Observation
Published on: December 31, 2013
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ピッチの不変性は,人間の運動におけるスキルの特定の調整を明らかにする.ゴルフ・スイングのダイナミクスの螺旋理論的再分析
1Ingenieria Mecanica, Universidad de Ingenieria y Tecnologia-UTEC, Lima 15063, Peru.
Journal of functional morphology and kinesiology
|August 22, 2025
まとめ
ピッチは人間の運動の調整を測るもので 熟練したゴルファーと初心者を 効果的に区別します この螺旋理論のメトリックは,動作のダイナミクスと力の適用の明確なパターンを明らかにし,パフォーマンスの分析に役立ちます.
科学分野:
- バイオメカニクス
- モーター コントロール
- スポーツ科学
背景:
- 熟練した人間の動きは 調整された回転と転移のダイナミクスから生じます
- スクリュー理論のインヴァリアントであるピッチは,瞬時スクリュー軸 (ISA) 沿いの角速度と線形速度を関連付けることでモーターの調整を定量化します.
研究 の 目的:
- ゴルフにおける運動調整を定量化するためのコンパクトメトリックとしてピッチを調査する.
- ピッチとグラウンド・リアクション・フォース (GRF) の分析を用いて熟練したゴルファーと初心者を区別する.
主な方法:
- 熟練した女ゴルファーと初心者の検証されたモーションキャプチャデータセットの再分析.
- 3DマーカーデータからISA軌道とピッチ値を計算する.
- フォースプレートからの垂直地面反応力 (GRF) 信号とのピッチデータの同期.
主要な成果:
- 熟練したゴルファーは,単一のGRFピークに整合した厳密なピッチ振動 (±0.0025cm/rad) を示した.
- 初心者ゴルファーは不規則なピッチ変動 (-0.025〜+0.01cm/rad) と複数のピークを持つ非同期的なGRFパターンを示した.
結論:
- ピッチは熟練したパフォーマンスの生体力学的指標として機能し,セグメント間の調整と力のタイミングを反映します.
- スポーツやリハビリテーションにおける 運動効率の評価のための 厳格な枠組みを提供します
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