歩行と走行における関節負荷の代理指標としての股関節内転モーメント:比較研究
Ransi S S Subasinghe Arachchige1, Torrance Mclean1, Roy T H Cheung2
1Human Movement Laboratory, School of Health Sciences, Western Sydney University, New South Wales, Australia.
Journal of biomechanics
|February 11, 2026
まとめ
歩行中の股関節内転モーメント(HAM)は股関節負荷を正確に反映するが、歩行修正を伴う走行中の信頼性は低い。歩行修正は、HAMと股関節反応力(HJRF)の関係に影響を与える。
科学分野:
- 生体力学; 整形外科学; ヒト運動科学
背景:
- 股関節内転モーメント(HAM)は股関節負荷の一般的な代理指標である。
- 様々な歩行タスクおよび歩行修正におけるHJRFの代理としてのHAMの妥当性は十分に理解されていない。
- 股関節変形性関節症の管理には、歩行修正が股関節負荷に及ぼす影響の理解が不可欠である。
研究 の 目的:
- 歩行および走行中のHAMとHJRFの関係を調査する。
- 健常成人における歩行修正がこの関係に及ぼす影響を調査する。
- 歩行修正下でのHJRFの代理としてのHAMの妥当性を評価する。
主な方法:
- 筋骨格モデリング(OpenSim)を使用してHJRFを推定した。
- 逆動力学を適用してHAMを計算した。
- 自然歩行および修正歩行(内股歩行、外股走行)からのデータを分析するために、スピアマン相関および混合効果モデルを使用した。
主要な成果:
- 歩行中、HAMは自然および内股条件の両方でHJRFと強く相関し、内股は両方の指標を減少させた。走行中、ピークHAMは自然条件ではHJRFと有意な相関を示したが、外股走行では示さなかった。外股走行はHAMを減少させたが、HJRFを有意に変化させず、これらの指標の分離を示唆した。
結論:
- 歩行修正は、特に走行のような動的な活動において、HAMとHJRFの関係を有意に変化させる。
- HAMは、通常の歩行中の股関節負荷の妥当な指標であるが、修正された動的条件下ではその妥当性は低い。
- 単一平面モーメントは、歩行修正中の関節負荷を完全には表さない可能性があり、HJRFの唯一の代理としてのHAMの使用における限界を強調している。
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