#3 Exercise Ball Crunch
This advanced variation of the crunch actives the core to a greater degree, thanks to its extended range of motion.
Also, read 13 Super Easy & Effective Core Exercises.
Instructions:
Step 1: Lie on a stability ball with your back rested on the curvature of the ball. The thighs should be parallel to the floor, while the feet should be planted firmly at shoulder-width apart.
Step 2: Contract the abdomen and move the torso upwards while maintaining contact with the stability ball.
Step 3: Hold the contraction for a second and return to the initial position.
Perform the exercise for the recommended number of times.
Important tip: You could even perform this exercise while using a weighted vest for enhanced resistance.
Next up: Stability Ball Forearm Plank