While sit-ups remain popular at gyms, on social media and in fitness workout plans, they could do more harm than good for some people. Your core was designed for more than just flexing and ...

As you finish the circle, lift back up into the high diagonal and repeat on the left hand side. Keep switching sides for five reps on each side, then lower your glutes back down to the mat and hug ...

More from Tom's Guide Forget sit-ups — build a stronger core and boost your balance with this 25-minute standing abs workout Build a stronger core with this 10-minute standing abs workout ...

As a personal trainer, I believe sit-ups have a time and a place, but they’re not the holy grail of core exercises. We’ve wised up to the many more bang-for-your-buck moves that can transform ...

Forget sit-ups — this no-equipment ab workout blasts your deep core Three 10-minute ab workouts that hit all your core muscles Showing 10 of 145 deals Gaiam Yoga Mat Our Review ...

More from Tom's Guide Forget sit-ups — all you need is 4 moves and 10 minutes to sculpt your core You don’t need crunches to build a strong core — here are 6 exercises to try instead ...