Water walking

You might start with water walking. In water that's about waist-high, walk across the pool swinging the arms as you do when walking on land. Avoid walking on tiptoes, and keep the back straight. Tighten the abdominal muscles to avoid leaning too far forward or to the side.

To increase resistance as the hands and arms move through the water, wear hand webs or other resistance devices. Water shoes can help you keep traction on the bottom of the pool.