The Snow Course is not intended for rehab from an existing injury without an evaluation by a medical professional or physical therapist first. If you are cleared to play a sport and have NO precautions for weight-bearing, range of motion, jumping, and lateral cutting, then you can participate in the course. We highly encourage participants NOT to push into pain during the exercises. We provide modifications for most exercises and participants should choose the intensity that they can perform with good form (and no pain). We emphasize quality over quantity. If pain is noted during an exercise, we ask participants to follow these steps: 1) Check your form, 2) Decrease Intensity or Impact, and 3) If pain persists, then simply skip that exercise. After ACL reconstruction, we recommend waiting 9-12 months to participate in the course. Once you are cleared for running, jumping, and changing directions WITHOUT pain or limitations, then you may participate at 9 months post-op.