Alternate side crunches

Lie on the floor, knees bent, arms outstretched at sides. Feet at a distance of 45-60 cm from each other. This will be your starting position. As you exhale, twist forward, up and to the right and try to touch the right heel. Stay in this position. On an inhale, slowly return to the starting position. As you exhale, twist forward, up and to the left and try to touch the left heel. On an inhale, return to the starting position. Perform the desired number of repetitions. 2 touches count as one rep.