Is There a Relationship Between Landing, Cutting, and Pivoting Tasks in Terms of the Characteristics of Dynamic Valgus?
Is There a Relationship Between Landing, Cutting, and Pivoting Tasks in Terms of the Characteristics of Dynamic Valgus?
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DOI：
10.1177/0363546514539446
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发表时间：
2014-09-01
影响因子：
4.8
通讯作者：
Graham-Smith, Philip
中科院分区：
文献类型：
--
作者：
Jones, Paul A.;Herrington, Lee C.;Graham-Smith, Philip
背景：前交叉韧带（ACL）损伤是女性运动员的主要问题。ACL损伤风险的筛查往往集中在着陆任务上，这可能局限于改变方向是非接触性ACL损伤的主要动作的运动，如足球。（90度切割）和旋转研究设计：实验室对照研究。方法：20名女子足球运动员（平均SD：年龄：21.0 ± 3.9岁;身高：1.65 ± 0.08 m;体重：58.4 ± 6.4 kg）从0.3 m跌落高度进行了至少6次SLL试验，所有试验均在右腿上进行切割和旋转。从三维运动分析中计算运动学和动力学。强相关性被发现的峰值膝关节外展角之间的任务（R = 0.63-0.86，P < .01），而SLL和切割之间只有中度相关性（R = 0.46，P < .05），切割和旋转（R = 0.56，P < .05），SLL和旋转（R = 0.43，P > 0.05）的峰值膝关节外展力矩。结果表明，SLL力学表现较差的女运动员在各种改变方向的任务中表现相同。临床相关性：结果支持使用现有的筛选测试（涉及着陆任务）来识别非接触性ACL损伤的高危运动员。
Background: Anterior cruciate ligament (ACL) injuries are a major problem among female athletes. Screening for the risk of ACL injuries tends to focus on landing tasks, which may be limited in sports where changing direction is the main action involved in noncontact ACL injuries such as soccer.Purpose: To investigate whether there is a relationship between single-legged landing (SLL), cutting (90 degrees cuts), and pivoting (180 degrees turns) in terms of the characteristics of dynamic valgus.Study Design: Controlled laboratory study.Methods: Twenty female soccer players (mean SD: age, 21.0 3.9 years; height, 1.65 0.08 m; mass, 58.4 +/- 6.4 kg) performed a minimum of 6 trials of SLL from a 0.3-m drop height and cutting and pivoting all on the right leg. Kinematics and kinetics were calculated from 3-dimensional motion analysis.Results: Strong correlations were found for peak knee abduction angles between tasks (R = 0.63-0.86, P < .01), whereas only moderate correlations between SLL and cutting (R = 0.46, P < .05), cutting and pivoting (R = 0.56, P < .05), and SLL and pivoting (R = 0.43, P > .05) were found between tasks for peak knee abduction moments.Conclusion: The results suggest that female athletes who exhibit poor SLL mechanics perform the same during various changing direction tasks.Clinical Relevance: The results support the use of existing screening tests that involve landing tasks to identify at-risk athletes for noncontact ACL injuries.