PT Solutions, 2221 S. Dale Mabry Hwy, Tampa, FL, 33629, USA.
Texas Health Sports Medicine Southwest, 6301 Harris Pkwy. Suite 150, Fort Worth, TX, 76132, USA.
Phys Ther Sport. 2021 Jul;50:42-49. doi: 10.1016/j.ptsp.2021.03.015. Epub 2021 Apr 5.
To determine the role of limb dominance on energy absorption contribution (EAC) during a jump landing (JL) task at return to sport (RTS) after ACL-R.
Cross-sectional study.
Clinical Research Laboratory.
One hundred eight participants (age = 16.19 ± 1.74, Height = 172.25 ± 9.96 cm, Weight = 72.61 ± 15.48 kg).
Participants were grouped into two groups: those who injured their dominant limb ACL (D-ACL) and those who injured their non-dominant limb ACL (ND-ACL). A multiple analysis of variance (MANOVA) was used to assess for between group differences in EAC across the three joints.
In the surgical limb, D-ACL demonstrated smaller hip (D-ACL = 32.23 ± 10.44%, ND-ACL = 69.68 ± 8.51%, p < 0.008) and greater knee (D-ACL = 45.86 ± 10.36%, ND-ACL = 9.41 ± 5.68%, p < 0.008) EAC than ND-ACL. In the non-surgical limb, D-ACL demonstrated greater hip (D-ACL = 62.59 ± 9.03%, ND-ACL = 25.95 ± 7.15%, p < 0.008), and smaller knee (D-ACL = 13.79 ± 5.57%, ND-ACL = 58.01 ± 7.86%, p < 0.008), EAC than ND-ACL.
After ACL-R, eccentric loading strategies during a JL task at RTS are different depending upon limb dominance. D-ACL demonstrated a greater knee loading strategy on the surgical side compared to ND-ACL.
确定优势肢体在 ACL 重建后重返运动（RTS）时的跳跃着陆（JL）任务中的能量吸收贡献（EAC）中的作用。
横断面研究。
临床研究实验室。
108 名参与者（年龄=16.19±1.74，身高=172.25±9.96cm，体重=72.61±15.48kg）。
参与者分为两组：受伤的优势肢体 ACL（D-ACL）和受伤的非优势肢体 ACL（ND-ACL）。使用多变量方差分析（MANOVA）评估三个关节之间 EAC 的组间差异。
在手术肢体中，D-ACL 的髋关节 EAC 较小（D-ACL=32.23±10.44%，ND-ACL=69.68±8.51%，p<0.008），膝关节 EAC 较大（D-ACL=45.86±10.36%，ND-ACL=9.41±5.68%，p<0.008），而 ND-ACL 则较小。在非手术肢体中，D-ACL 的髋关节 EAC 较大（D-ACL=62.59±9.03%，ND-ACL=25.95±7.15%，p<0.008），膝关节 EAC 较小（D-ACL=13.79±5.57%，ND-ACL=58.01±7.86%，p<0.008），而 ND-ACL 则较大。
ACL 重建后，RTS 时 JL 任务中的偏心加载策略因肢体优势而异。与 ND-ACL 相比，D-ACL 手术侧的膝关节负荷策略更大。
