Select the appropriate weight of the dumbbell. Stand straight with your feet shoulder width apart and grab the dumbbell with your left hand.
Slowly bend your body from your waist to your left side until you feel the stretch in your oblique muscles. Inhale during the movement. Return to the starting position in a smooth movement while you inhale. Repeat the movement for the specified amount of repetitions and then repeat with the other side.TIPS: The exercise key is quality over quantity. The trick is to perform the exercise using proper form.