- Standing on a bench, hold onto the chin-up bar with an overhand grip (palms facing away from your body), hands shoulder-width apart. Step off the bench and extend your arms so that you are hanging from the chin-up bar. This is your starting position.
- Inhale.
- Exhale. While keeping your legs extended, slowly raise your legs upward until they form a 90-degree angle with your hips.
- Inhale. Slowly lower your legs to return to the starting position.
- Repeat for the specified number of repetitions, ensuring that you keep your abdominals engaged to prevent your body from swaying.
Kelsey recommends doing three to four sets of 10 to 12 reps each.