💥𝐀𝐂𝐋 𝐈𝐧𝐣𝐮𝐫𝐲 𝐌𝐞𝐜𝐡𝐚𝐧𝐢𝐜𝐬💥
Research has commonly pointed towards four motor behavior patterns that are associated with ACL injury. These patterns can largely be offset when a neuromuscular training program that focuses on lower quarter control is implemented. Learning how to land from a jump (as shown in these videos), in a way that is not characterized by any of the four patterns outlined below, is a great place to start.
1️⃣ Inward collapse of the knee or dynamic valgus (ligament dominance) places extra stress on the passive structures of the knee and is associated with poor control of the hip joint and, less so, the foot.
2️⃣ Limited knee flexion (quadriceps dominance) is commonly seen in individuals who have suffered ACL injuries. A strong contraction by the quadriceps translates to a stiffer landing and increased anterior shear stress on the ACL.
3️⃣ Asymmetrical weight bearing (leg dominance) is seen in activities that are normally characterized by equal loading of each leg. When this happens, the loaded leg is put under greater stress, including the ACL.
4️⃣ Lateral trunk flexion (trunk dominance) relates to an individual's inability to precisely control their trunk in three-dimensional space through coordinated trunk muscle action. Several studies have demonstrated that trunk proprioception and control serve as predictors of future risk of knee ligament injury.
If you are an athlete between the ages of 10-25 and participate in a sport where ACL injuries commonly occur, please consider implementing a neuromuscular training program. For a comprehensive, research-based program, see the link in my story.
📚Mandelbaum BR, et al. Effectiveness of a neuromuscular and proprioceptive training program in preventing anterior cruciate ligament injuries in female athletes: 2-year follow-up. Am J Sports Med. 2005.
📚Hewett TE, et al. Understanding and preventing acl injuries: current biomechanical and epidemiologic considerations. N Am J Sports Phys Ther. 2010.