The reverse crunch is a simple core exercise that targets those hard-to-hit lower abs — without straining your neck and back.

Keeping your knees bent, extend one foot to touch the floor then return to the starting position. Repeat on each leg 10 times for a total of 20 reps. Muscles targeted: Lower abs 2. Leg lower How ...

Start seated on the ground with knees bent and feet flat on the floor. Then, imagine you are making a ‘C’ shape with your body by hollowing your abs and rounding your back. It’s important to ...

You can do these moves “anywhere” and “at any time,” Austin explained.