You don’t need sit-ups to build core strength. Try these five exercises instead

Woman holding dumbbell in gym while doing a workout.

If you want to build core strength, you don’t need to spend hours doing sit-ups. You can strengthen your core in less than 20 minutes with just five moves and a dumbbell.

I'm a personal trainer but—like most people—I don't enjoy pumping out endless sit-ups. So I pulled together this quick list of alternative moves that you can do.