Post-ACL Reconstruction: Safe Weight Training and Exercise Intensity - Orthopedics

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Post-recovery exercise intensity after anterior cruciate ligament (ACL) tear?


Hello, doctor.
About three years ago, I suffered a rupture of my right posterior cruciate ligament and underwent arthroscopic ligament reconstruction and rehabilitation.
Recently, during a military physical examination, the doctor mentioned that my recovery is progressing well.
I would like to ask if, since I have been doing weight training and regularly perform leg exercises such as leg raises and hamstring curls, incorporating weighted exercises similar to squats could negatively impact my knee after recovery?

Joe, 20~29 year old female. Ask Date: 2017/12/23

Dr. Hong Ximing reply Orthopedics


After a successful reconstruction surgery for a torn cruciate ligament, recovery is generally good, and it should be possible to engage in weight training to strengthen muscles, which can further enhance joint stability.
However, it is important to proceed with caution and be mindful of one's limits.

Reply Date: 2017/12/23

More Info


After undergoing ACL reconstruction, it's crucial to approach weight training and exercise with caution to ensure a safe and effective recovery. The rehabilitation process following ACL surgery typically involves several phases, and understanding these phases can help you determine the appropriate intensity and type of exercises to perform.

Firstly, it's essential to recognize that the primary goal during the early stages of rehabilitation is to restore range of motion, reduce swelling, and regain strength in the quadriceps and hamstrings. As you progress, you can gradually introduce more challenging exercises, including weight training. However, the timing and intensity of these exercises are critical.

In general, after ACL reconstruction, patients are advised to avoid high-impact activities and heavy weightlifting until they have regained sufficient strength and stability in the knee. This usually takes several months, and many rehabilitation protocols suggest waiting at least 6 to 12 months post-surgery before engaging in high-intensity weight training or activities that place significant stress on the knee joint, such as deep squats.

When considering exercises like squats, it's important to focus on proper form and technique. Begin with bodyweight squats to ensure that you can perform the movement without pain or instability. Once you feel comfortable, you can gradually add weight, but it's advisable to start with lighter loads and increase them incrementally. Pay attention to how your knee responds during and after the exercise. If you experience pain, swelling, or instability, it may be a sign that you need to scale back the intensity or volume of your training.

Incorporating strength training into your routine can be beneficial, but it should be done thoughtfully. Exercises that emphasize the quadriceps, hamstrings, and glutes are particularly important for knee stability. Consider including exercises such as leg presses, lunges, and step-ups, which can help build strength without placing excessive strain on the knee.

Additionally, it's advisable to work closely with a physical therapist or a certified trainer who has experience with post-ACL rehabilitation. They can help you design a personalized training program that aligns with your recovery goals and ensures that you are progressing safely. They can also provide guidance on the appropriate exercises, sets, and repetitions based on your current strength and stability.

In summary, while weight training can be a valuable component of your rehabilitation after ACL reconstruction, it is essential to approach it with caution. Focus on regaining strength and stability in your knee, and gradually introduce more challenging exercises as you progress. Always listen to your body, and consult with healthcare professionals to ensure that your training is safe and effective. By doing so, you can work towards a successful recovery and return to your desired activities without compromising your knee health.

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