大学野球投手における、投球中の速球の速度差(高速度球 vs 低速度球)における角速度の被験者内時系列比較
Adam Nebel1, Abigail Schmitt2, Kevin Giordano3
1Auburn University - School of Kinesiology, 301 Wire Rd, Auburn, AL, USA, 36849.
Sports medicine and health science
|January 7, 2026
まとめ
大学野球投手は、高速度球と低速度球の間で、骨盤、体幹、肩、肘の角速度に有意な違いを示した。セグメントの回転とシーケンスの最適化は、ピッチ速度を増加させることができる。
科学分野:
- バイオメカニクス
- スポーツ科学
- 野球分析
背景:
- ピッチ速度は野球における重要なパフォーマンス指標です。
- 高速度球と低速度球の間の運動学的な違いを理解することは、トレーニング戦略に情報を提供できます。
研究 の 目的:
- 骨盤、体幹、肩、肘の角速度の時系列における、投球者内の違いを調査すること。
- 大学野球投手における高速度球と低速度球の間の運動学的違いを比較すること。
主な方法:
- 82人のNCAAディビジョン1投手の試合中の運動学的データの遡及的分析。
- マーカーレスモーションキャプチャシステムを使用してデータを収集しました。
- 統計的パラメトリックマッピング(SPM)ペアサンプルt検定を、ピッチサイクル中の角速度の時間的比較に使用しました。
主要な成果:
- 全てのテストされたセグメント(骨盤、体幹、肩、肘)は、最も遅い速球と比較して、最も速い速球の間に有意に速い角速度を示しました。有意な差は、各セグメントのピッチサイクルの様々な段階で観察されました。
結論:
- 時系列角速度における被験者内の違いは、離散的な指標を超えて速球の速度を区別します。
- 投球者は、各身体セグメントの回転速度を増加させ、運動シーケンスを最適化することによって、ピッチ速度を増加させる可能性があります。
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