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Walking: An Effective Strategy for Lifelong Health

AUBURN, JAN. 10---Walking --competitively or casually -- is a surprisingly effective strategy for lifelong health. Studies show that walkers traveling faster than 5 mph actually burn twice as many calories as runners going the same speed.

Before starting a walking program, check with your physician, especially if you are over 45, says Dr. Bob Keith, Extension nutritionist, with the Alabama Cooperative Extension System. Keep in mind that you are in no big hurry. This is lifelong health, not overnight magic. In the beginning, forget stopwatches, heart rates and technique. Just go for a walk at a comfortable pace slightly above a stroll. Fifteen or 30 minutes would be nice, but you can split it up into two or three 10-minute walks a day.

After a few weeks of walking, start measuring your time. Start by timing how long it takes you to walk a mile comfortably on flat ground. It usually takes between 15 and 20 minutes. Use that as your starting point and build on it.

Measure several walking courses. Use your car's odometer or the rule of 10 city blocks to a mile to measure different routes. Two miles per course is enough for a start.

Next, set your frequency. The goal is three to five times a week, with a heart rate in your target zone for 15 to 60 minutes. Schedule your walks in advance, and keep the appointment.

The recommendation for a "training heart rate" is 60 to 90 percent of the fastest your heart can beat in a minute. Figure your maximum heart rate by subtracting your age in years from 220. Multiply the result by 0.6 and 0.9 to get the bottom and top of your target zone for aerobic training. Periodically, as you are walking, take your pulse at the wrist. Count your pulse for 10 seconds and then multiply by six. This will give you your heart rate in beats per minute.

The proper walking technique is not as important as getting out there and doing something, says Keith, Extension nutritionist. Keep in mind that healthy people are well overall; their activities boost energy and help fend off heart disease and circulatory problems. The key is to stay active.

To make walking a habit takes willpower -- and a strategy. Schedule regular walks with a friend if you need an extra push, or walk first thing in the morning before other commitments crop up. Vary your course to keep it interesting or get a dog. Don't think of walking as exercise. Think of it as time you have set aside for yourself. Enjoy it.

All you really need in equipment is a good pair of walking shoes. Choose a pair with a firm heel cup for stability and plenty of room for toes so they can spread out as they push off. Wear loose, comfortable clothes.

You don't have to walk any certain way, but as you get better, there comes a point when refinements offer definite benefits. The correct posture, arm swing and stride add up to high-intensity exercise and lower risk of injury. Lean slightly forward -- from the ankles, not the waist. Leaning from the waist will tire your back and make breathing harder. Keep your head level and your chin up.

Arm swings make walking a total body activity. Keep your elbows firmly bent at a 90-degree angle, and swing from the shoulder. Your hand should end its forward swing at breastbone height. On the backswing, if you are moving fast, the upper arm is almost parallel to the ground.

Make your stride long and smooth. It helps to borrow some moves from competitive race walkers: keep your supporting leg straight as your body passes over it, and let the hip rise and relax. As the leg moves to the rear, keep its foot on the ground as long as possible before pushing off.

Be sure to warm up and cool down, says Keith. Walk at an easy pace for five or 10 minutes until you are warm before kicking into high gear. Cool down at the end of your hard walk with another five to 10 minutes of easy walking.

Weather doesn't have to stop your walking routine. Move your walk indoors. Shopping malls are a popular alternative. Some 2,400 malls nationwide let walkers in before shopping hours, usually between 6:30 and 10 a.m. Many have walking clubs.

In addition, if you have the money, you can purchase a treadmill. Walking on a treadmill can be just as effective as walking outdoors. Treadmills allow you to control pace and elevation. Spending a little extra money on a high-quality treadmill is worth the cost.

SOURCE: DR. BOB KEITH, (rkeith@aces.edu), Extension Nutritionist, Alabama Cooperative Extension System, (334) 844-3273