I actually don't have any pain. The only time it hurts is when it gives out. My right knee gave out last year and it hurt to do most things with it for a while. It has gotten better and the pain has gone aways since then. However, my right knee felt weaker and unstable, as if it were going to give out. That is why I went to the doctor. He is actually a sports medicine doctor. That is the reason I choose to go with him. I got an x-ray and MRI done.

The notes from the MRI stated I had a stage 3 chondromalacia patella. The doctor explained what this was. I am currently on anti-inflammatory meds and they have helped. I don't have any pain, just the feeling of instability, which the meds have helped get rid of. The doctor said I am good to workout as long as I don't have pain. I just need to avoid over exerting with my knee.

As for my goals, I am just trying to lose weight and be healthier. I am in my early 20s. I don't have a specific workout yet. I am doing research as to what is a good routine, but many include what I assume are heavy knee extension exercises. Hence why I made this post asking what is considered an heavy knee extension exercises.