Featured Research

from universities, journals, and other organizations

Pedometers Help People Take A Step To Get Active

November 27, 2007
Stanford University Medical Center
Researchers have found that the use of a pedometer is associated with significant increases in physical activity and weight loss and improvements in blood pressure.

Using a pedometer is associated with significant increases in physical activity and weight loss and improvements in blood pressure, researchers have found.
Credit: iStockphoto/Nathan Watkins

The pedometer, a small, inexpensive device that counts the number of steps walked per day, could be key to ramping up a person's physical activity.

Related Articles

Researchers at the Stanford University School of Medicine have found that the use of a pedometer is associated with significant increases in physical activity and weight loss and improvements in blood pressure.

"Much to my surprise, these little devices were shown to increase physical activity by just over 2,000 steps, or about 1 mile of walking per day," said the study's lead author, Dena Bravata, MD, MS, a senior research scientist in medicine. "This goes a long way toward helping people meet the national guidelines for daily physical activity."

Although two-thirds of U.S. adults are overweight or obese, according to the Centers for Disease Control and Prevention, only 45 percent of Americans get enough physical activity. Guidelines from the Department of Health and Human Services recommend that adults get at least 30 minutes of daily physical activity. Several organizations, such as the nonprofit Shape Up America founded by former U.S. Surgeon General C. Everett Koop, MD, recommend that adults walk 10,000 steps each day.

In recent years, pedometers have emerged as a popular tool that's easy to use (clipped to a pocket or waistline) to count steps walked per day. The devices are affordable, with many brands selling for as little as $10 or $15. Some employers, like Chevron Corp., even provide pedometers for free to workers who pledge to walk a certain number of steps each day.

Bravata, a general internist, said she was curious whether she should recommend pedometers to her patients, many of whom are not active enough. "Improving health behaviors is the No. 1 thing I discuss during my patients' routine visits, and I'm constantly seeking ways to get them to exercise more," she said.

To evaluate the effects of pedometers on physical activity and health outcomes, Bravata and her colleagues reviewed more than 2,000 articles and found 26 studies - 18 observational studies and eight randomized trials - that looked at the use of pedometers as a tool to motivate physical activity. A total of 2,767 people participated in the studies; most participants were female, overweight and relatively inactive before they started their walking program.

The walking programs evaluated in the studies varied considerably: 23 included a step goal and diary, in which participants recorded their daily activity; 17 included physical activity counseling; and five took place in the workplace. The mean study duration was 18 weeks.

Bravata and her team found that pedometer users in the randomized trials increased their physical activity by 2,491 steps per day more than participants who did not use pedometers. Among the observational studies, pedometer users increased their physical activity by 2,183 steps per day over baseline.

"Just over 2,100 steps might not sound that much, but it equates to a 27 percent increase in physical activity - which is really astounding," said Bravata.

One person who wasn't surprised by the finding is James Hill, PhD, an obesity expert at University of Colorado. "It fits with everything we've seen; we can get pretty amazing increased physical activity by using pedometers," said Hill, who co-founded America on the Move, a national initiative that encourages people to add 2,000 steps a day to what they already are doing.

When looking beyond increased steps, Bravata's team found that pedometer users lost weight: their body mass index - a measure of body fat based on height and weight - decreased by 0.4. (For a 5-foot-6 person who initially weighed 195 pounds, that would be 2.5 pounds lost.)

They also saw their systolic blood pressure (the upper number of the two values) fall by 3.8 mm Hg. Bravata said she considered this decrease quite significant, especially because the baseline blood pressure of the pedometer users was not that high. She noted that a reduction of 2 mm Hg is associated with a 10 percent reduction in stroke mortality and a 7 percent reduction in death from vascular causes.

The researchers also evaluated specific components of the walking programs and found that having a step goal was a key predictor of increased physical activity. "People don't always achieve it, but just having a goal seems to help them stay motivated and improve their physical activity," she noted.

Bravata pointed out that this study does have limitations. Only 15 percent of study participants were male, for example, and the mean study duration was only 18 weeks. She said more randomized, controlled studies on longer-term pedometer use are needed.

In the meantime, Bravata hopes her findings will encourage physicians to recommend pedometers to their sedentary patients. And Hill hopes this demonstrates to people that health can be improved with just simple changes. "Nothing is simpler than getting a pedometer," he said.

Bravata's co-authors, who were all at Stanford at the time of the study, are Crystal Smith-Spangler, MD; Vandana Sundaram, MPH; Allison L. Gienger; Nancy Lin, ScD; Robyn Lewis, MA; Christopher D. Stave, MLS; Ingram Olkin, PhD and John R. Sirard, PhD. This project was supported by a grant from the National Institute on Aging through the Stanford Center on the Demography and Economics of Health and Aging.

On Dec. 19, Bravata will discuss her findings and answer questions during a JAMA "Author in the Room" teleconference.

Journal referenc: JAMA. 2007;298(19):2296-2304

Story Source:

The above story is based on materials provided by Stanford University Medical Center. Note: Materials may be edited for content and length.

Cite This Page:

Stanford University Medical Center. "Pedometers Help People Take A Step To Get Active." ScienceDaily. ScienceDaily, 27 November 2007. <www.sciencedaily.com/releases/2007/11/071120195723.htm>.
Stanford University Medical Center. (2007, November 27). Pedometers Help People Take A Step To Get Active. ScienceDaily. Retrieved January 25, 2015 from www.sciencedaily.com/releases/2007/11/071120195723.htm
Stanford University Medical Center. "Pedometers Help People Take A Step To Get Active." ScienceDaily. www.sciencedaily.com/releases/2007/11/071120195723.htm (accessed January 25, 2015).

Share This

More From ScienceDaily

More Health & Medicine News

Sunday, January 25, 2015

Featured Research

from universities, journals, and other organizations

Featured Videos

from AP, Reuters, AFP, and other news services

Disneyland Measles Outbreak Spreads To 5 States

Disneyland Measles Outbreak Spreads To 5 States

Newsy (Jan. 24, 2015) Much of the Disneyland measles outbreak is being blamed on the anti-vaccination movement. The CDC encourages just about everyone get immunized. Video provided by Newsy
Powered by NewsLook.com
Growing Measles Outbreak Worries Calif. Parents

Growing Measles Outbreak Worries Calif. Parents

AP (Jan. 23, 2015) Public health officials are rushing to contain a measles outbreak that has sickened 70 people across 6 states and Mexico. The AP&apos;s Raquel Maria Dillon has more. (Jan. 23) Video provided by AP
Powered by NewsLook.com
Smart Wristband to Shock Away Bad Habits

Smart Wristband to Shock Away Bad Habits

Reuters - Innovations Video Online (Jan. 23, 2015) A Boston start-up is developing a wristband they say will help users break bad habits by jolting them with an electric shock. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
This Is What It's Like To Date A Med Student

This Is What It's Like To Date A Med Student

BuzzFeed (Jan. 23, 2015) Dating is now speed-dating... or studying. Video provided by BuzzFeed
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.


Breaking News:

Strange & Offbeat Stories

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News


Free Subscriptions

Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile

Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?

Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins