Band jack knife sit-up

Performing the: A Step-by-Step Tutorial Band jack knife sit-up

• Grab the ends of the band with both hands, and extend your arms straight above your head, keeping your legs straight as well.
• In one fluid motion, perform a sit-up by lifting your upper body off the ground while simultaneously pulling your knees towards your chest.
• At the top of the movement, your body should form a V shape and you should feel a contraction in your abdominal muscles.
• Slowly lower your body back down to the starting position, extending your arms and legs, and repeat the exercise for the desired number of reps.