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首页> 外文期刊>Journal of athletic training >Jump-landing mechanics after anterior cruciate ligament reconstruction: A landing error scoring system study
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Jump-landing mechanics after anterior cruciate ligament reconstruction: A landing error scoring system study

机译：前十字韧带重建后的跳跃着陆力学：着陆误差评分系统研究

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The Landing Error Scoring System (LESS) is a clinical evaluation of jump-landing mechanics and may provide useful information in assisting with return-to-sport decisions in patients after anterior cruciate ligament reconstruction (ACLR). However, it is currently unknown how patients with ACLR perform on the LESS compared with healthy controls.Objective: To determine if the total LESS score differed between individuals with ACLR and healthy controls and to determine the types of errors that differ between groups.Design: Cross-sectional study.Setting: Research laboratory.Patients or Other Participants: A total of 27 individuals with unilateral ACLR (age = 19.8 6 1.8 years, height = 170 6 5.5 cm, mass = 68.8 ± 11.9 kg) and 27 controls (age = 20.5 ± 1.7 years, height=169 ± 8.4 cm, mass=66.6 ± 9.0 kg) with no history of ACLR.Intervention(s): Each participant completed 3 trials of a standardized jump-landing task.Main Outcome Measure(s): Each jump landing was assessed for specific postures using standardized LESS criteria by a blinded evaluator. Individual LESS items were summed to create a total LESS score. The dominant limb was assessed in the control group, and the reconstructed limb was assessed in the ACLR group.Results: The ACLR group had higher LESS scores compared with controls (ACLR: 6.7 6 2.1 errors, control: 5.6 ± 1.5 errors, P = .04). Additionally, the ACLR group was more likely to err when landing with lateral trunk flexion (Fisher exact test, P = .002).Conclusions: Individuals with ACLR had worse landing mechanics as measured by the LESS. Lateral trunk deviation may be related to quadriceps avoidance in the reconstructed limb or poor trunk neuromuscular control. The LESS is useful for evaluating landing errors in patients with ACLR and may help to identify areas of focus during rehabilitation and before return to sport.
机译：着陆错误评分系统（LESS）是对跳跃着陆力学的临床评估，可为前十字韧带重建（ACLR）后的患者提供辅助运动决策的有用信息。然而，目前尚不清楚ACLR患者与健康对照者相比在LESS方面的表现如何。目的：确定ACLR患者与健康对照者之间的LESS总分是否存在差异，并确定两组之间错误的类型。横断面研究背景：研究实验室患者或其他参与者：总共27名单侧ACLR患者（年龄= 19.8 6 1.8岁，身高= 170 6 5.5 cm，质量= 68.8±11.9 kg）和27名对照（年龄= 20.5±1.7年，身高= 169±8.4厘米，体重= 66.6±9.0公斤），无ACLR病史干预措施：每位参与者完成了3次有关标准着陆任务的试验。 ：由盲人评估者使用标准化的LESS标准评估每个跳跃着陆的特定姿势。将各个LESS项相加以创建LESS总分。结果：ACLR组的LESS评分高于对照组（ACLR：6.7 6 2.1个错误，对照组：5.6±1.5个错误，P = .04）。此外，ACLR组在侧躯干屈曲着陆时更容易犯错误（Fisher精确检验，P = 0.002）。结论：根据LESS测量，ACLR患者的着陆力学较差。躯干外侧偏斜可能与重建肢体避免股四头肌或躯干神经肌肉控制不良有关。 LESS对于评估ACLR患者的着陆错误很有用，并且可能有助于在康复期间和重返运动前确定重点领域。

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