Why Is Skiing a risk factor for ACL (anterior cruciate ligament) injury

Skiing is a risk factor for ACL (anterior cruciate ligament) injuries due to several reasons:

Twisting Forces: ACL injuries often occur when the knee twists or rotates while the foot is firmly planted on the ground. This twisting force is common in skiing, particularly when making sharp turns, landing jumps or when the ski does not release from bindings during a fall. The twisting force can cause the ACL to tear or rupture.

Ski Boot Design: Ski boots are designed to provide support and control, which can help prevent ankle injuries, however forces can then be distributed up the kinetic chain to the knee. This can increase the risk of ACL injuries. The rigid design of ski boots can cause the knee to be locked in one position, making it more susceptible to injury if a twisting force is applied.

Skier Ability: Skiers who are less experienced or have poor technique are more likely to injure their ACL. In-experienced skiers will accumulate fatigue in their legs quicker than experienced skiers, this can make them more susceptible to twisting injuries. This is because they may not be able to control their movements as well as more experienced skiers, making them more susceptible to falls or landing incorrectly.

Terrain: The type of terrain that skiers are on can also affect their risk of ACL injuries. Steep slopes and moguls can increase the likelihood of falls, while icy or hard-packed snow can make it more difficult to control movements and increase the risk of sudden twisting or pivoting motions.

Overall, while skiing can be a fun and exhilarating sport, it does carry a risk of ACL injuries. Skiers can reduce their risk of ACL injury by preparing for the physical demands your body will experience on the slopes. Skiers can prepare for these physical demands with strength training. Skiers should also consider the importance of learning appropriate technique for skiing to disperse the ground reaction forces evenly across the body.