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Wearing a pedometer can help in weight-loss battle

Lenny Bernstein
L.A. Times/Washington Post News Service

What if there was a small, inexpensive device that was proven to boost your fitness, help you lose weight and lower your blood pressure? Would you use it, especially if doing so was nearly effortless?

Jane Bonin does. She has for the past eight months and swears by it. “It’s just a way of tricking yourself into doing the right thing,” says the 73-year-old writer and former college professor who lives in Washington.

Hundreds of people at the Office of Management and Budget have one. They’ve got them at the White House. More than 3,000 Stanford University employees have tried them, as have people in various workplaces.



And yet, buying a pedometer is not the first – or second, or third – piece of advice you typically receive when you turn to someone and say: “I really need to get in shape, but I hate exercising. What should I do?”

But it probably should be, says Dena Bravata, a physician and senior research scientist at Stanford who analyzed 26 studies of pedometer use and found clear evidence that people who have them get more exercise, lose weight and lower their blood pressure. In fact, the decrease in blood pressure was equivalent to results achieved through much more expensive interventions that involve doctors and pharmacists, she said. And in a relatively short time, many people were able to lower their body mass index enough to move from the “obese” to “overweight” category.

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“What we found was, on average, that wearing a pedometer increased people’s physical activity by about 2,000 steps per day,” Bravata said. “That’s equivalent to about a mile.”

There is little dispute that walking is one of the best, cheapest and easiest things you can do for your health, especially if you’re older than 50. And there is equally little disagreement that most people don’t do enough of it.

For many, a pedometer helps break through psychological barriers by providing motivation, accountability and a sense of control, according to Bravata and people who use the devices.



As a rule, people overestimate the amount of exercise they get. Keeping track can be eye-opening. Falling short motivates people to find ways to walk more, Bonin says.

“I have walked the corridors of this building many a night, trying to work off my last steps,” says Bonin, whose goal is 10,000 steps a day, or about five miles.

A pedometer allows you to make quick, beneficial changes, Bravata says. “You can diet like mad, exercise like mad all day long, and tomorrow morning, it’s unlikely you would have made a significant difference” in your weight, she said. In contrast, if you attach a pedometer to your hip and take a reading of your baseline walking distance, tomorrow you can increase that distance, sometimes significantly.

It’s important to keep your results in a log or diary, as anyone who has tried to stick to a diet can attest. You’ll discern patterns, good and bad, in your exercise routine. Blank spots or days when you just can’t squeeze in a walk provide added motivation.

“If you don’t write it down, it’s almost as if it didn’t happen,” says Bonin, who also attends stretching classes and swims each week.

But the single most critical factor in employing a pedometer is setting a step goal, Bravata said. In fact, those who wore one but didn’t set a goal did not increase their physical activity, she said.

Somehow, 10,000 steps has become the standard goal, although according to a 2004 article by Catrine Tudor-Locke, a researcher at Louisiana State University, there appears to be no science behind the figure. Tudor-Locke says it may stem from a promotion by pedometer companies in Japan. Bravata says the actual size of the goal isn’t as important as setting one that will improve your health and keeping after it – by parking farther from the office, taking the stairs or getting out for that lunchtime walk.

I wanted to see how difficult it would be to walk 10,000 steps in the course of my day, so I bought a pedometer for $21 at a sporting goods store. I wore it on four consecutive days – not enough for a true test of its effectiveness – with mixed results.

On a fairly sedentary Saturday that featured a lot of football watching, I logged 7,868 steps. (I didn’t wear the pedometer on my 11-mile morning run.) Sunday included trips to Costco, the grocery store and an hour of leaf work in the yard, for a total of 13,300 steps. On Monday, a day of errand-running: 12,201 steps. And Tuesday, spent largely in the office: 9,667 steps.

I’m certain these numbers are inflated, possibly by quite a bit, because the pedometer often credited me with steps when I shifted my weight in a chair. Bonin says more expensive models like hers don’t do this. They also can be connected to computers to download information quickly.

There are still open questions about pedometer use. I know people who became frustrated when they could not reach their goals and stopped wearing pedometers. There is no good research about how long people stick with pedometer programs and whether they maintain the associated health and fitness benefits. Workplace pedometer campaigns tend to reach people who are already physically active.

Barbara Moore, executive director of Shape Up America!, an organization founded in 1994 by former Surgeon General C. Everett Koop, said that walking must be coupled with changes in eating habits to truly achieve lasting weight loss and health benefits.

But there seems to be little downside to giving this a try.

“The beauty of this program,” Bonin says, “is its utter simplicity.”


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