Cierson Tanya, Zhao Kevin, Belkhelladi Malachy, Babouras Athanasios, Jing Jenny, Faith Janet, Corban Jason, Martineau Paul A
Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
Division of Orthopaedic Surgery, McGill University, Montreal, Quebec, Canada.
Orthop J Sports Med. 2025 Apr 28;13(4):23259671251333792. doi: 10.1177/23259671251333792. eCollection 2025 Apr.
Anterior cruciate ligament (ACL) injuries can pose significant challenges for athletes, leading to significant morbidity, loss of playing time, and impaired performance. Neuromuscular training programs, such as the FIFA 11+, have shown promise in reducing the risk of lower extremity injuries in this high-risk population.
PURPOSE/HYPOTHESIS: The purpose of this study was to evaluate the effect of the FIFA 11+ program on lower extremity biomechanics during a drop vertical jump (DVJ) and to determine whether it modifies the athlete's risk of an ACL injury. It was hypothesized that the FIFA 11+ program would positively affect lower limb biomechanics during a DVJ in varsity athletes by decreasing initial coronal (IC) and peak coronal (PC) knee abduction angles while increasing peak sagittal (PS) knee flexion angles.
Cohort study; Level of evidence, 2.
A total of 36 collegiate varsity athletes (72 knees) were recruited for this investigation. The intervention group included female and male soccer players who incorporated the FIFA 11+ program into their pregame warm-up. The control group consisted of female hockey players who participated in a "standard" warm-up. The FIFA 11+ program was conducted twice weekly over 10 weeks. Biomechanical data before and after the intervention during DVJs, captured using a motion sensor, were compared between the intervention and control groups.
The intervention group showed a significant reduction in PC angles from high risk to low risk and a significant decrease in PS angles, while IC angles remained unchanged. Conversely, the control group showed a significant increase in IC angles from low risk to high risk, with no notable changes in PC and PS angles.
This study demonstrated that the FIFA 11+ program effectively reduced PC knee abduction angles, with a decrease in this parameter indicating an overall shift from high- to low-risk biomechanics in the intervention group. Additionally, worsening postseason knee biomechanics in the control group highlighted that the injury risk increased throughout the season when a targeted neuromuscular training program was not incorporated into pregame warm-ups. This suggests that the FIFA 11+ program mitigates key biomechanical risk factors for noncontact ACL injuries.
前交叉韧带（ACL）损伤会给运动员带来重大挑战，导致严重的发病率、比赛时间损失和运动表现受损。神经肌肉训练计划，如国际足联11+计划，已显示出在降低这一高风险人群下肢受伤风险方面的前景。
目的/假设：本研究的目的是评估国际足联11+计划对垂直下落跳（DVJ）期间下肢生物力学的影响，并确定其是否能改变运动员前交叉韧带损伤的风险。研究假设是，国际足联11+计划将通过减少初始冠状面（IC）和峰值冠状面（PC）膝关节外展角度，同时增加峰值矢状面（PS）膝关节屈曲角度，对大学运动员垂直下落跳期间的下肢生物力学产生积极影响。
队列研究；证据等级，2级。
本研究共招募了36名大学运动员（72个膝关节）。干预组包括将国际足联11+计划纳入赛前热身的男女足球运动员。对照组由参加“标准”热身的女子曲棍球运动员组成。国际足联11+计划在10周内每周进行两次。使用运动传感器在垂直下落跳期间干预前后收集的生物力学数据，在干预组和对照组之间进行比较。
干预组的峰值冠状面角度从高风险显著降低到低风险，峰值矢状面角度显著降低，而初始冠状面角度保持不变。相反，对照组的初始冠状面角度从低风险显著增加到高风险，峰值冠状面和峰值矢状面角度没有明显变化。
本研究表明，国际足联11+计划有效地降低了峰值冠状面膝关节外展角度，该参数的降低表明干预组从高风险生物力学向低风险生物力学的总体转变。此外，对照组季后赛膝关节生物力学恶化突出表明，当有针对性的神经肌肉训练计划未纳入赛前热身时，整个赛季的受伤风险会增加。这表明国际足联11+计划减轻了非接触性前交叉韧带损伤的关键生物力学风险因素。
