Explosive quadriceps strength and landing mechanics in females with and without anterior cruciate ligament reconstruction

Yu Lun Huang*, Eunwook Chang, Samuel T. Johnson, Christine D. Pollard, Mark A. Hoffman, Marc F. Norcross

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

摘要

Lower explosive quadriceps strength, quantified as rate of torque development (RTD), may contribute to landing mechanics associated with anterior cruciate ligament (ACL) injury risk. However, the association between quadriceps RTD and landing mechanics during high demand tasks remains unclear. Therefore, this study investigated the influence of quadriceps RTD on sagittal plane landing mechanics during double-leg jump landings (DLJL) and single-leg jump cuts (SLJC) in females with and without ACL reconstruction (ACLR). Quadriceps RTD was measured during isometric muscle contractions. Landing mechanics were collected during DLJL and SLJC tasks. Separate stepwise multiple linear regression models determined the amount of variance in sagittal plane landing mechanics that could be explained by quadriceps RTD, group (ACLR or Control), and their interaction. The results indicate that greater quadriceps RTD is associated with lower loading rate (p = 0.02) and longer time to peak vertical ground reaction force (p = 0.001) during SLJC, regardless of ACLR status. As greater loading rate may lead to higher risk of ACL injuries and post-traumatic knee osteoarthritis post-ACLR, explosive muscle strength interventions might be useful for individuals with and without ACLR to facilitate the use of safer landing mechanics.

原文英語
文章編號7431
頁(從 - 到)1-13
頁數13
期刊International journal of environmental research and public health
17
發行號20
DOIs
出版狀態已發佈 - 2020 10月 2
對外發佈

ASJC Scopus subject areas

  • 公共衛生、環境和職業健康
  • 健康、毒理學和誘變

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