Ditch crunches. Try 6 standing moves that burn more calories, tighten your core, and slim a stubborn belly after 40.

Far from being an easy alternative, standing ab workouts are a great way to challenge your core, without putting any pressure on your spine. If you’re unable to lie down on your back due to an injury ...

I’ve never enjoyed doing sit-ups. From doing them on the cold, hard gym floor at school to tediously tagging them onto the end of another workout, they’ve always felt uncomfortable on my lower back ...