If you haven’t done a crab walk since summer camp, then it may be time to bring this old-school exercise back into your life. Yes, the move calls on you to do your best impression of a crustacean, but ...

The donkey kick is one of those aptly-named exercises — like the bear crawl or crab walk — that looks exactly how you’d expect it to. So yes, it involves getting on all fours and kicking your leg back ...