As we discussed last week, water-walking is a growing form of exercise. It's easy to do, and offers a good workout. To make sure you get the best results, experts offer these tips:

• Wear an old pair of sneakers to protect your feet from the pool's bottom.
• Warm up for about 5 minutes by moving around in the water and gently stretching.
• Choose the depth that is comfortable for you; you'll get the most resistance in chest-deep water, but hip- or waist-deep water is OK if you're more comfortable there.
• Stand up straight - don't lean forward.
• Vary your walking - walk forward, backward, and sideways, or march with your knees high.
• To make your exercise more intense, move your arms through the water or make bigger or faster movements.
• Don't walk on your tiptoes; step heel to toe (if you're walking backwards, step toe to heel).
• Cool down for about 5 minutes by making stretching and easy movements.