Strengthening Your Knees: Effective Squat Exercises for Recovery - Orthopedics

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To strengthen the knees, perform squats?


Hello Doctor, last year I injured my left knee while playing basketball.
After going to the hospital, the doctor diagnosed it as a "patellar ligament strain," but it wasn't very serious, and I was only given pain relief patches.
It has been about 8 to 9 months since then, but my knee still doesn't seem to have fully recovered.
I wear a knee brace while playing, and afterward, I feel a slight soreness.
I apply ice and heat at home, followed by an anti-inflammatory spray, and after resting for a night, the soreness usually goes away by the next day.

I would like to ask, is a "patellar ligament strain" difficult to heal? Does my situation qualify as a "chronic strain"? Additionally, I want to strengthen my knee through some exercises.
A friend suggested that I can do "bodyweight squats" at home without going to the gym.
How many times a day should I do these "squats"? Or what would be a good duration and number of repetitions for a single session? I hope you can clarify these questions for me! Thank you very much!

Xiao Wei, 10~19 year old female. Ask Date: 2013/03/31

Dr. Shi Guozheng reply Orthopedics


After a strain, it is essential to have adequate rest for the injured area to recover.
Typically, soft tissue injuries require at least six weeks of rest.
Strengthening exercises generally include knee flexion and extension, as well as muscle strength training to strengthen the quadriceps.
It is recommended to perform these exercises twice a day for about 10 to 15 minutes each time.

Reply Date: 2013/03/31

More Info


Strengthening your knees, especially after an injury like a patellar ligament strain, is crucial for recovery and preventing future issues. The patellar ligament connects the kneecap (patella) to the shinbone (tibia) and plays a vital role in knee stability and function. While your injury may not have been severe, the lingering discomfort you experience after playing basketball suggests that your knee may still be vulnerable.
Patellar ligament injuries can take time to heal, and the recovery process varies from person to person. Factors such as the severity of the injury, your overall health, and how well you adhere to rehabilitation protocols can influence recovery time. In your case, the fact that you are still experiencing discomfort after several months may indicate that your knee has not fully healed or that you may be at risk of re-injury, especially if you return to high-impact activities like basketball too soon.

Regarding your concern about "habitual strains," it is possible to develop a pattern of re-injury if the underlying issues are not addressed. This could be due to inadequate strength in the surrounding muscles, poor biomechanics, or insufficient rehabilitation. Therefore, it is essential to focus on strengthening the muscles around the knee, particularly the quadriceps, hamstrings, and calf muscles, to provide better support and stability.

Incorporating bodyweight squats into your routine can be an effective way to strengthen your knees. Squats help engage the quadriceps, hamstrings, and glutes, which are crucial for knee stability. Here are some guidelines for performing bodyweight squats safely and effectively:
1. Form is Key: Ensure that your knees do not extend past your toes when squatting. Keep your chest up and back straight. Engage your core to maintain stability.

2. Frequency and Repetitions: Start with 2-3 sets of 10-15 repetitions, 2-3 times a week. As your strength improves, you can gradually increase the number of repetitions or sets. Listen to your body; if you feel pain, reduce the intensity or volume.

3. Progression: Once you feel comfortable with bodyweight squats, you can progress to more challenging variations, such as single-leg squats or adding resistance with weights.

4. Warm-Up and Cool Down: Always warm up before exercising to prepare your muscles and joints. After your workout, cool down with gentle stretches to improve flexibility and reduce muscle soreness.

5. Cross-Training: Consider incorporating low-impact activities like swimming or cycling into your routine. These exercises can help maintain cardiovascular fitness while minimizing stress on your knees.

6. Listen to Your Body: If you experience pain during or after squats, it may be a sign that you need to modify your technique or reduce the intensity. Consult with a physical therapist or healthcare provider for personalized advice.

In addition to strengthening exercises, continue with your current rehabilitation practices, such as icing and using anti-inflammatory sprays as needed. If your symptoms persist or worsen, it may be beneficial to consult with a healthcare professional for further evaluation and tailored rehabilitation strategies.

In summary, while patellar ligament strains can be challenging, with the right approach to rehabilitation and strengthening, you can improve your knee function and reduce the risk of future injuries. Stay committed to your recovery, and don't hesitate to seek professional guidance if needed.

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