Knee injuries are a major concern for gymnasts, cheerleaders, and athletes involved in high-impact sports. The constant jumping, landing, and rapid changes in direction put immense strain on the knees, increasing the risk of conditions like ACL injuries, patellar tendonitis, and patellofemoral pain syndrome. Understanding how to prevent and manage knee injuries is essential for maintaining peak performance and avoiding long-term complications.
Common Knee Injuries in Athletes
1. Osgood-Schlatter Disease
Osgood-Schlatter’s is an injury to the patellar tendon (tendon immediately below the kneecap) that occurs during rapid growth spurts. If an athlete’s body is growing faster than the tendon can grow and strengthen then it gets stretched out and overworked. This injures the tendon and pulls on its bony attachment point in the knee. Often this pain goes away within 2-3 months, but other times the injury sticks around as patellar tendonitis. When this happens it is unlikely to fully improve without treatment.
2. Patellar Tendonitis (Jumper’s Knee)
Repetitive jumping, landing, and tumbling can injure the patellar tendon when it is not strong enough to handle the forces it experiences. This leads to pain just below the kneecap. This condition is common in athletes who perform frequent explosive movements.
3. Patellofemoral Pain Syndrome (Runner’s Knee)
Patellofemoral Pain Syndrome is a common and, unfortunately, very broad diagnosis. Often used interchangeably with the diagnosis of Chondromalacia Patella. These diagnoses generally refer to anterior knee pain around the knee cap. Some practitioners believe this is a knee cap tracking issue. Causes of anterior knee pain that I have personally treated with success: knee malposition causing pinching in the knee, poor hip and knee stability causing excess stress to the ligaments in the knee, and referred pain from the spine.
4. ACL Tears
The anterior cruciate ligament (ACL) stabilizes the knee joint. Sometimes occurring in conjunction with PCL and/or meniscus tears. Sudden stops, pivots, or awkward landings can cause a tear, leading to instability and requiring significant recovery time. Although these injuries are sometimes unexpected, there are usually signs of knee instability prior to injury. There is evidence which supports single leg and lateral hip strengthening as decreasing risk for these injuries.
Risk Factors for Knee Injuries
- Poor hip and knee stability or alignment: In my opinion this is the most important. Collapsing knees or poor single leg strength means a shaky foundation for movement.
- Poor Landing Mechanics: Athletes may not always have immediate pain when landing with their knees too straight or by collapsing their knees into each other. But habitual poor mechanics for landings is asking for trouble.
- Overuse: Repetitive stress at a level that the knee is not prepared for can lead to tissue break down and inflammation.
- Insufficient Active Warm-Up: A cold muscle is a slow and more fragile muscle. A cold ligament lacks elasticity. Warm ups must be thoroughly active and minimize passive stretching.
Prevention Strategies
1. Strengthen the Ankles, knees, and hips for single leg stability
Strong hips, especially for external rotation and the ability to push through single leg activities without a collapsing knee, will lower the incidence of both knee and ankle injuries. Building strength through single leg hopping forward, backward, and side to side will improve joint stability and reduces the risk of injury.
2. Improve Landing Mechanics
Practicing proper landing techniques—such as bending the knees adequately to absorb force and avoid collapsing knees. Be sure to practice good landing mechanics when momentum is going forward, backward, left, and right. Landings need to be safe no matter the angle an athlete comes down from.
3. Use KT Tape or Athletic Tape as needed
Wearing knee braces or tape can provide additional support to make it through training, competition, or a game before your knee can support itself. BUT never begin taping without a rehab plan to wean off the tape. I recommend white athletic tape for firm support when the knee is unstable and at a higher risk for reinjuring. And I like KT tape when the knee is building back strength but not quite ready to handle all forces on its own.
4. Warm Up and Stretch
A proper warm-up, including dynamic mobility exercises like double and single leg jumping, prepares the muscles and ligaments for activity and reduces the risk of injury.
5. Progress Training Gradually
Avoid sudden increases in training intensity, as fatigue and overuse can lead to poor movement patterns and greater injury risk. Start heavier strength training for the hamstrings, quads, and general single leg power 4-8 weeks before an anticipated increase in training intensity.
Treatment and Recovery
If a knee injury occurs, early intervention is crucial for a successful recovery. If any severe ligament (ACL, MCL, PCL) or meniscus tears are suspected, especially in conjunction with significant swelling or your knee is locked in place, seek medical attention immediately.
Immediate Care
- Relative Rest: Limit activities which clearly worsen symptoms. For mild to moderate knee injuries walking is often one of the best ways to promote recovery. For moderate to severe pain avoid weightbearing but focus on gentle active movement in mid range of motion to promote blood flow and decrease swelling
- Ice or heat: Apply ice packs for 15 minutes every few hours to reduce swelling the first day. After the first day using both heat or ice can help control pain and swelling.
Rehabilitation and Return to Sport
- Range of Motion Exercises: Fully return the knee flexion and extension range of motion required for your sport.
- The 10 Minute Rule for Tendonitis: No matter how early or late in recovery for a tendon or muscle injury, the 10-Minute Rule is the best approach. For patellar tendonitis, complete an exercise that stresses the patellar tendon enough to reproduce pain, but light enough that symptoms return to baseline within 10 minutes. Early on this might be knee extension in sitting without any weight. Late stage training might be lunges holding 40 lb weights. Always chase the 10 Minute interval.
- Strength Training: Strengthen any knee imbalances and prepare the knee for return to sport.
- Progressive landing, jumping, and balance stability training: Exercises like double leg jumps and rebounds, single-leg dynamic balance, and single leg jumps improve stability and reduce re-injury risk.
- Sport-Specific Drills: Before returning to full activity, a mild return to sport with decreased intensity should be completed for a few weeks as needed.
Keep Your Knees Strong and Injury-Free
Knee injuries can be career-altering, but with proper prevention and rehabilitation, athletes can stay strong and resilient. If you’re experiencing knee pain or want to improve your knee stability, a sports physical therapist can help create a customized plan to keep you in top shape.
Need expert guidance? Contact us today to optimize your knee health and performance!