I have logged a few miles behind one of those, about 60 years ago. Whenever I grumble about mowing today, I just think back to when I was a kid and shut my mouth.
Hey, I just turned 60 and I find the exercise they provide exhilarating. Wife is afraid I`m going to drop dead from a heart attack, but the family sawbones says as long as I avoid this type of exercise when it’s too hot or too humid, I`m fine. He also says my ticker is in better shape than most guys 10-15 years younger.