If you're unsure how to do a sit-up, we've got the answers to help you maximize this popular exercise. When you think of some of the best ab workouts, the sit-up is a classic, and the exercise can ...

The sit-up may seem basic—but you can get a lot more toning out of the same old ones you’ve been doing for years. Nate Bower, Toronto-based personal trainer and YouTube fitness coach, is here to guide ...