Limb Asymmetries in landing and jumping 2 years following anterior cruciate ligament reconstruction
Limb Asymmetries in landing and jumping 2 years following anterior cruciate ligament reconstruction
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DOI：
10.1097/jsm.0b013e31804c77ea
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发表时间：
2007-07-01
影响因子：
2.7
通讯作者：
Hewett, Timothy E.
中科院分区：
文献类型：
--
作者：
Paterno, Mark V.;Ford, Kevin R.;Hewett, Timothy E.
目的：在前交叉韧带重建(ACLR)后可能持续的运动任务中，前交叉韧带(ACL)损伤的风险增加的女运动员表现出肢体之间的生物力学差异。这可能会限制运动员安全重返体育比赛的潜力。这项研究的目的是确定女运动员在ACLR和重返竞技运动参与的许可后，是否在着陆和起跳力量上表现出腿部不对称。设计：病例对照研究。地点：辛辛那提儿童医院医学中心运动医学生物动力学中心。患者：14名平均27个月的健康女性运动员参与了这项研究。评估：所有受试者都执行了垂直下落跳跃(DVJ)的任务。在着陆和起飞过程中测量垂直地面反力(VGRF)，并将其用于计算着陆阶段的载荷率。结果：与受累肢体和对照肢体相比，受累肢体和对照肢体的VGRF增加(P=0.001)，负荷率增加(P<；0.001)。在起跳过程中，患肢产生力量的能力明显低于健侧和对照肢体(P=0.03)。结论：接受过ACLR手术并重返运动岗位的女运动员在重建后2年或更长时间内仍可表现出生物力学肢体不对称，在着陆过程中可被识别出来。
Objective: Female athletes who are at increased risk for anterior cruciate ligament (ACL) injury demonstrate biomechanical differences between limbs during athletic tasks that may persist following anterior cruciate ligament reconstruction (ACLR). This may limit an athlete's potential for safe return to sports competition. The purpose of this study was to determine if female athletes demonstrate lower limb asymmetries in landing and takeoff force following ACLR and clearance for return to competitive sports participation. We hypothesized that females following ACLR would demonstrate side-to-side differences in landing and jumping kinetics after their return to sport (2+ years) that would not be observed in a group of healthy female controls.Design: Case control study.Setting: The Sports Medicine Biodynamics Center at Cincinnati Children's Hospital Medical Center.Patients: Fourteen female athletes at a mean of 27 months following ACLR and IS healthy female athletes participated in the study.Assessment: All subjects executed a drop vertical jump (DVJ) task onto 2 force plates. Vertical ground reaction force (VGRF) was measured during landing and takeoff and was used to calculate landing phase loading rates. A 2-way analysis of variance was used to determine differences between the involved, uninvolved, and control limbs.Results: Females who had undergone ACLR demonstrated increased VGRF (P = 0.001) and loading rate (P < 0.001) on the uninvolved limb during landing when compared with the involved limb and the control group. During takeoff, the involved limb showed significantly less ability to generate force (P = 0.03) than the uninvolved limb and the control limbs.Conclusions: Female athletes who have undergone ACLR and returned to sport may continue to demonstrate biomechanical limb asymmetries 2 years or more after reconstruction that can be identified during landing.