The main difference between sit ... crunch adds an extra level to the traditional crunch by targeting the upper and lower abs. Lie flat on your back. Lift your arms and legs, so they are extended ...

Perform each move for 50 seconds, taking just 10 seconds of rest between each one. Complete all the moves, and then you're ...

Standing ab workouts normally involve more of a full-body workout than lying down, as you have to engage your leg muscles ... I swapped my sit-ups for a standing oblique crunch.

Standing abs workouts are a great way to strengthen your core without using common exercises like sit-ups, crunches and planks ... parts of the body like your legs and chest through compound ...