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

endless sit-ups and planks alone won’t do it. Not only does switching things up help you beat boredom, but it’ll also help you engage different muscles to strengthen your entire core.

endless sit-ups and planks alone won’t do it. Not only does switching things up help you beat boredom, but it’ll also help you engage different muscles to strengthen your entire core.

Often people find when they do a sit-up is that the initial lift hurts, but then the exercise becomes far easier, this is simply because the stomach muscles are not being used any more.

The six-pack muscles are formally known as the rectus abdominis, a muscle group responsible for flexion and extension of your torso in the sagittal plane of motion (think sit-ups, crunches and leg ...

While sit-ups remain popular ... leg slightly as you go Reverse the movement, then repeat on the other side. The jackknife targets the rectus abdominis (six-pack muscles) and the deeper core ...