Nirrbhay Singh, Center manager, Ozone fitness and spa, quantifies the importance of the exercise ball with the outer thigh lifts exercise. To do the exercise, kneel on the floor and slide your body to rest on the exercise ball. Slowly lift the left leg up and move it clockwise ten times and repeat anti-clockwise. Lift your leg a little higher so much that it is 90 degrees from your waist and bend the knee to push and pull the leg. Repeat a few times and relax by holding it in the air for 10 seconds and getting back to the same position. Repeat the exercise with the alternative leg. This exercise helps tighten the muscles and tone the body.