Let's make a deal

One thing you can do to encourage fitness activity is by using rewards.

One method I have been using with a client is the tradeoff - if we get all the stuff we need him to do finished, the last 15 minutes is whatever he wants to do. I don't particularly care if it's exercise or not, even though it's supposed to be an hour of exercise. To discourage rushing, it's only the last 15 minutes, so if we do our 45-minute program in 35 minutes, we do 10 more minutes of other work. That helps eliminate "let's skip rest times!" or sloppy reps. This also means if there is some special exercise the client wants to try, we can do that - in the last 15 minutes.

Want to do the treadmill for 15 minutes? Okay, after we finish the other work. Want to do extra foam rolling, or just fool around with the chest press to see how much stronger you've gotten? That can be the last 15 minutes. But only if the work got done, and the rest times were used for rest.

This approach is rewards-based, and it's only going to work for you if you respond well to rewards. Not everyone does. Try it, if it works, great, if not...keep searching.