Start standing with a 4-5 kilogram dumbbell in each hand; if this is too heavy or too light, feel free to adjust the weight. Make sure your bodyweight is evenly distributed on each foot, your spine is in a neutral position, and your shoulders are back and open.
With your arms extended, hold the dumbbells about four inches away from your legs; this will activate your abdominal muscles. Begin to walk forward, maintaining a neutral spine and keeping your shoulders up and open.