For the last month or so ive been going with my father to the gym. Hes 63 with a fused hip and a bad back. We spend about an hour in the pool, he does aquatic exercises and uses the steam room and hot tub while i swim laps. The other day we played basketball for around 30 minutes or so and he had to take the next couple days off because his knees and hip were too sore. Anyone have any advice for natural supplements that can help with muscle recovery and energy levels as well as easing sore joints. I hate to see him get to discouraged cause he "feels too old." Any advice?