I was diagnosed today with a partially torn ACL. We are going to try therapy first for 2-4 weeks before surgery. I take care of a quadriplegic friend 5 days a week. I lift him into his chair from his bed using a squat & pivot motion. He weighs about 170+. Should I keep doing this, will it do further damage to my knee? The Dr said no squatting or bending before my MRI results were back and I have only spoken with his nurse since then. Her recommendation was no. I haven't done it since the injury which was last weekend. I am 38 years old, moderately active but slightly overweight. Thanks in advance for any responses!