Seated Knee Lifts
Keep your back straight and have your feet flat on the floor. Keep one knee bent up into the chest and then bend down and alternate. This action is aimed at working the lower abs, enhancing hip rotation, and the deep core. Pull your stomach in as you are lifting it to make it more effective. Do it gradually so as not to make use of momentum. Stabilising muscles are also made stronger by means of regular practice, which tightens the belly.
