| 論文種別 | その他 |
| 言語種別 | 英語 |
| 査読の有無 | その他(不明) |
| 表題 | Contraction of the Deep Hip Muscles Contributes to Hip Capsulo-Ligamentous Complex Tension In Vivo. |
| 掲載誌名 | 正式名：Clinical anatomy (New York, N.Y.) 略 称：Clin Anat ISSNコード：10982353/08973806 |
| 巻・号・頁 | pp.Online ahead of print. |
| 著者・共著者 | Hikari Itsuda, Masahide Yagi, Hiroshige Tateuchi, Haruka Sakata, Zimin Wang, Subaru Hyakutake, Noriaki Ichihashi |
| 発行年月 | 2026/02 |
| 概要 | The anterior hip muscles, especially the iliocapsularis, reflected head of rectus femoris and gluteus minimus, attach to hip capsulo-ligamentous complex directly, and may contribute to anterior hip stability by increasing the tension of the capsulo-ligamentous complex by muscle contraction. However, it has not been verified whether the contraction of these muscles actually increases the tension of the capsulo-ligamentous complex in vivo. The objectives of our study were to clarify (1) whether deep hip muscle contractions increase the tension of the hip capsulo-ligamentous complex, and (2) which muscles most affect the changes in the tension of the capsulo-ligamentous complex. Twenty-eight healthy young individuals (22.8 ± 1.6 years) participated. The tasks included isometric hip flexion, abduction, adduction, and knee extension contraction and rest in a supine position. The shear elastic moduli (G) of the capsulo-ligamentous complex, iliocapsularis, rectus femoris, and gluteus minimus were measured using shear wave elastography. Higher G values correspond to increased muscle activity and tension of the capsulo-ligamentous complex. The G of the capsulo-ligamentous complex showed higher in hip abduction contraction than in the resting position (p = 0.008). The results of the multiple regression analysis showed that only the amount of change in G of the iliocapsularis was a significant variable, even when adjusted for maximum torque (R2 = 0.412, β = 0.513, p = 0.009). The tension of the hip capsulo-ligamentous complex increased with isometric hip abduction, implying tension transfer between the muscle and the capsulo-ligamentous complex. Furthermore, the iliocapsularis has been suggested to play an important role in the transmission of tension. |
| DOI | 10.1002/ca.70086 |
| PMID | 41630392 |