What are ACL injuries, and how to prevent them?

The ACL (Anterior Cruciate Ligament) is one of the most crucial and primary ligaments in the knee. It connects the thigh bone (femur) to the shin bone (tibia). Mainly, the ACL keeps the knee stable, controls the tibia from sliding too far forward, and supports the twisting and pivoting movements involving the knee. 

What an ACL injury is

An ACL injury can be extremely painful and have a long recovery process. ACL injuries occur when the ACL is stretched excessively or, in some cases, torn. It can be a partial or complete tear.  Sports with sudden stops, jumping, landing, and swift pivoting can cause life-altering injuries like ACL tears.

How ACL injuries happen

ACL injuries can occur in many scenarios, such as many. This injury only occurs based on the movements or contacts with the knee; the majority of ACL injuries come about without contact. Moving in diverse ways can create a ton of pressure on the ACL as it's not built to handle those movements. Landing wrong after a jump, twisting the knee when the foot is planted, sudden stops after running, and direct hits to the knee (less common than non-contact injuries) are all the most common ways people are diagnosed with ACL injuries. 

Common sports linked to ACL injuries

As ACL injuries are typically sustained during any physical activity, athletes playing these sports must have strong legs and take precautions, as this injury can strike with one wrong step. Sports like soccer, basketball, football, tennis, skiing, and volleyball can be taxing, as these strong physical activities can take a huge toll on your physical abilities. So yeah… a lot of sports.

Symptoms of ACL injuries

Some people might fall and experience pain all over their knee, but still question what type of injury it is. There are many ways to find out. Popping sounds or feelings in the knee, immediate pain, swelling in a few hours, knee feels unsteady and challenging to stay standing, trouble putting weight on your leg, and reduced range of motion all can demonstrate signs of an ACL injury. But besides that, it is always important to ask a professional for guidance, as the damage to your knee can be something different, even if following all of these criteria. This can just provide a brief understanding of your pain and early diagnosis. It is always important to check with a doctor in these scenarios.

So, how do you prevent ACL injuries?

There are a variety of ways to prevent and train from ACL injuries. An ACL injury doesn’t heal on its own; severe tears often need surgery. Recovery can take 6-12 months, putting you prone to many future knee problems and affecting your athletic performance long-term. Furthermore, focusing on strengthening your muscles can help protect the knee.  You must focus on strengthening quadriceps, hamstrings, glutes, and core. But you must be thinking, why do core exercises when it has nothing to do with your legs? Well, having balanced leg strength and core can influence more balance. 

Proper movement mechanics 

You must acquire knowledge on how to land softly from jumping up and down, as when you land, the impact comes directly to your knees. Keeping your knees firm from collapsing inward is a necessity, as an inward shift is a movement the knee isn’t designed for. Standing straight can also lead to immense pressure on your knees; it's very important to keep your knees and hips slightly bent. 

Other ways to stay clear of ACL injuries 

Dynamic warm-ups before highly physical activities are a fundamental and requisite habit that must be strong. The colder the muscles, the higher your injury risk will be. Neuromuscular training can train the brain and muscles to work together, improving balance, coordination, and reaction time. This can benefit you in terms of responding better to sudden movements. Although not considered significant, flexibility is also key to a prompt recovery. Tight muscles can attract the knee into positions you never want to be in. Otherwise, with proper footwear, rest, and everything mentioned above is essential to rehab from an ACL injury.

Overall, ACL injuries can be a very impactful and pivotal injury in your life. It is crucial to recover and treat your knee well after injuries like this. I remember my father suffering from an ACL Injury and being rushed to the hospital. Even after receiving care from the doctors, this injury stood as a transformative lesson in his life, emphasizing the importance of knee health and containing your knees in a well-kept condition.

Although I am not a doctor, I am an 8th-grade student passionate and interested in anatomy and injury awareness. Even healthy individuals can suffer devastating injuries in an instant. Protecting your knees through strength, technique, and prevention can make a lifelong difference.