Performing the: A Step-by-Step Tutorial Jack Split Crunches
Then, simultaneously lift your arms, legs, and torso off the ground, as if you were doing a traditional crunch, but spread your legs apart into a 'V' shape like you would in a jumping jack.
As you lift your body, try to touch your hands to your toes while keeping your legs in the 'V' shape.
Lower your body back to the starting position, ensuring that your arms and legs are fully extended again.
Repeat this exercise for the desired number of repetitions, making sure to engage your core throughout the entire movement.