used to 3 intense training sessions a day - before work, at lunch and after work. all three were different, meaning 1 was swimming, 1 was running, and 1 was weight training, or substitute the swimming with cycling, etc. the only thing I gave a full 48 hrs rest period for was the weight training. this felt like the perfect plan. a couple times i cycled to the gym for upper body weight training but declined doing that often cuz I always wanted to give ea. sport my maximum effort.