An Appalachian State University study led by Jeffrey McBride found that stable exercises are superior to unstable exercises for overloading the muscles in our bodies including CORE muscles. Being on solid surfaces, one can use heavier loads, shorter tension times, and higher speeds than on unstable surfaces. Ground-based exercises have the same force, velocity, and core-stabilizing elements required in most sports and movement skills. The take-home message is to stay grounded for better results. (International Journal Sports Physiology Performance, 5:177-183, 2010)
* Disclaimer: Individual results are not guaranteed and may vary. Exercise and proper diet are necessary to achieve and maintain weight loss and muscle definition.