Shawn great answer...Rebounding can be just as tough on the joints. Not knowing your age and weight, but I would suggest Glucosamine Chondroitin 750/600mg I am 39 and 270-280lbs, I take 3 of these each day and I run, bike, use elliptical machines, and practice martial arts...and my joints are hanging in there. The Glucosamine Chondroitin, lubes the joints, and helps the cartilage remain flexible and also helps rebuild it. It’s all in how you take care of your body. You have a great start with the 35lbs down already.