HUMAN Lab, Sport and Health University Research Institute (iMUDS), Granada, Spain.
HUMAN Lab, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain.
J Sports Sci. 2022 Dec;40(24):2784-2794. doi: 10.1080/02640414.2023.2193451. Epub 2023 Mar 23.
The objective of the study was to evaluate the effectiveness of the Safe Landing (SL), a 6-week technique-modification (TM) programme, on cutting and jump-landing movement quality in football players. In a non-randomized design, 32 male semi-professional football players from two Spanish clubs participated in the study: one served as the control group (CG, = 11), while the other performed the SL ( = 15). Performance and movement quality of drop vertical jump and 70º change of direction (COD70) were evaluated through 2D video footage pre- and post-intervention. In such tasks, the Landing Error Scoring System for first (LESS1) and second (LESS2) landings, and the Cutting Movement Assessment Score (CMAS) were used for assessing movement quality. Pre-to-post changes and baseline-adjusted ANCOVA were used. Medium-to-large differences between groups at post-test were shown in CMAS, LESS1 and LESS2 ( < 0.082, ղ = 0.137-0.272), with small-to-large improvements in SL ( < 0.046, 0.546-1.307), and CG remaining unchanged ( > 0.05) pre-to-post. In COD70 performance, large differences were found between groups ( < 0.047, ղ = 0.160-0.253), with SL maintaining performance ( > 0.05, 0.039-0.420), while CG moderately decreasing performance ( = 0.024, 0.753) pre-to-post. The SL is a feasible and effective TM program to improve movement quality and thus potential injury risk in cutting and landing, while not negatively affecting performance.
本研究旨在评估“安全落地”（Safe Landing，SL）作为一项为期 6 周的技术修正（Technique-Modification，TM）方案的有效性，以提高足球运动员的切变和跳跃落地动作质量。在非随机设计中，来自西班牙两个俱乐部的 32 名男性半职业足球运动员参与了这项研究：一组为对照组（CG，n=11），另一组进行 SL 训练（SL，n=15）。干预前后通过二维视频片段评估了垂直跳和 70°变向（70° COD）的表现和动作质量。在这些任务中，使用落地错误评分系统（Landing Error Scoring System）评估第一（LESS1）和第二（LESS2）次落地的动作质量，以及切变运动评估得分（Cutting Movement Assessment Score，CMAS）。使用组内前后变化和基于基线的协方差分析进行评估。结果显示，在 CMAS、LESS1 和 LESS2 方面，SL 组在测试后具有中到大的组间差异（<0.082，效应量：0.137-0.272），而 SL 组在测试后表现出小到大的改善（<0.046，0.546-1.307），CG 组在测试前后保持不变（>0.05）。在 70° COD 性能方面，两组之间存在大的差异（<0.047，效应量：0.160-0.253），SL 组保持了性能（>0.05，0.039-0.420），而 CG 组在测试前后表现出中等程度的下降（=0.024，0.753）。SL 是一种可行且有效的 TM 方案，可以提高切变和落地的动作质量，从而降低潜在的受伤风险，而不会对表现产生负面影响。
