Wow, no sooner than I mentioned working out, maybe a bit too hard, I found a product to help alleviate tennis elbow, and pain in the elbow from other repetitive motion. The
aircast pneumatic armband fits around the arm just above the elbow, and is adjustable to any size. It uses air cells to allow pressure where needed, while being flexible so it doesn't bruise, or limit motion. It's amazing. I hope they have something for sore knees. They have elbow ice packs too. Both of those products are great for tennis players and golfers who most often develop "tennis elbow."