Sure! Bowling you have to do 12 oz curls between frames, along with throwing the ball every 7 minutes. The better you are, the less exercise you get, strikes are only one roll.

I also carry my own clubs, and the older I get, the less clubs and extra junk, I put in the bag.

Back to the point. I see exercise bicycles at almost every rummage sale. You should be able to find a used one on the curb (free) or at a resale shop, cheap. If you find you are using it and like riding for exercise, then buy one. But I wouldn't go out and buy a top of the line and find out I'm bored, or that I don't use it.

Ask your neighbors and friends, I bet you can find one free!