you borrow a bicycle, because you do not ride all the time anyway, then you go out cold and put 30 miles on it .. and .. your butt is gonn'a HURT. (we know this ! )
snowshoes are like that.
if you are in otherwise strong shape, so you can Really overdo it, there is a muscle up the front of your shin that will be hit pretty hard. distance snowshoeing is an acquired taste.