Sit on the ball with your feet flat on the floor. Place your hands on the ball, or on your hips to make it more challenging.
There are so many effective ways to work your core at the gym and at the home. You could grab a kettlebell and do a full-body routine with sneaky abs engagement, do bodyweight abs moves like plank ...
Core-stabilization training was derived from physical therapy in which injured patients needed to improve core strength after ...