1 - Find a pull-up bar or similar overhead apparatus that you can hang from. You may need a stable platform to stand on to reach the bar if it’s too high.
2 - Stand under the bar and grip it with your hands, slightly wider than shoulder-width apart.
3 - Hang from the bar with your arms fully extended. Your body should be in a straight line.
4 - Engage your core muscles and, while maintaining the straight position, lift your knees up toward your elbows.
5 - Exhale as you bring your knees up and contract your abdominal muscles to create the movement.
6 - Aim to touch your knees to your elbows or get them as close as possible.
7 - Lower your legs back down with control, returning to the hanging position.