女性は,男性と比較して,中程度の重荷を運ぶ上で,より大きなピークと累積的な関節のストレスを示します
Richard W Willy1, Janet E Simon2, Brittany Hanser3
1School of Health and Rehabilitation Sciences, The Ohio State University, Columbus, Ohio, USA.
European journal of sport science
|September 4, 2025
まとめ
軍用荷物運搬訓練は,特に女性において,骨首関節痛 (PFP) のリスクを高めます. 身体的な違いを考慮しても 荷物を運ぶ際の膝の負担は大きいので PFPを防ぐために 適した訓練が必要だと考えられます
科学分野:
- バイオメカニクス
- スポーツ医学
- 軍事保健
背景:
- 貨物輸送訓練は 標準的な軍事訓練です
- 女性では,男性に比べて,骨首関節痛 (PFP) の発生率が高くなります.
- 貨物輸送中のPFPの性別による差異の根本的な理由は完全に理解されていません.
研究 の 目的:
- 荷重の運搬中の関節 (PFJ) のストレスの性差を調査する.
- 人体測定と四頭筋の強さが 性別の違いを説明するかどうか
- 女性の新兵に対する PFP 予防戦略を策定する.
主な方法:
- 20匹の雄と20匹の雌が,計器付きのトレードミルで荷重運搬試験 (0~34kg) を完了した.
- 逆動力学的筋骨格モデルにより,PFJのストレス (ピーク,衝動,累積) を推定した.
- 四頭筋の強度と人体測定を測定し,これらの要因を統計分析で制御した.
主要な成果:
- PFJのストレスは,すべての参加者に負荷を運ぶことで増加しました.
- 女性では,人体測定と四頭筋の強さに関係なく,男性と比較して,重荷でPFJのストレスが著しく増加しました.
- 性別による負荷の相互作用は,女性におけるPFJストレスの増加に適度な効果を示した.
結論:
- 人体測定と強さの違いは,荷物を運ぶ際に女性で観察されたより大きなPFJストレスを説明しません.
- PFPのリスクを軽減するために,女性募集者は,変更された荷物輸送訓練プロトコルを必要とします.
- 性別特有の生体力学的要因に関するさらなる研究が必要である.
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