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Can Walking Be Enough to Reduce Obesity?

by
author image August McLaughlin
August McLaughlin is a health and sexuality writer with more than 10 years of experience as a nutritionist. Her work is featured in the Huffington Post, DAME Magazine, The Good Men Project and more. She specializes in eating disorders and loves connecting with readers and writers via her blog and social media.
Can Walking Be Enough to Reduce Obesity?
Photo Credit monkeybusinessimages/iStock/Getty Images

Overview

Walking is hands-down the easiest form of exercise. So easy, in fact, that you likely do it without even thinking about it. You can walk almost anywhere, and walking provides a broad range of benefits. Unfortunately, researchers and health experts agree that Americans need to be doing a lot more of it.

In a 2010 study published in “Medicine & Science in Sports & Exercise,” researchers used pedometers to track the steps of 1,136 American adults. The findings revealed that Americans take fewer steps than adults in Australia, Switzerland and Japan.

All three countries also have fewer instances of obesity and heart disease than the U.S. does -- unsurprising, considering how walking can affect your physiology. Learning more about these benefits might inspire you to take some important steps toward long-term fitness.

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While power walking may burn more calories over the same period of time as regular walking, we still see the significant health benefits with regular walking.

- John M. Martinez, M.D., sports and family medicine physician at Kaiser Permanente in San Diego

The Health Perks of Walking

For starters, walking is a low-impact activity, so it doesn’t place a ton of stress on your body the way running, jumping or even dancing can. That makes it ideal for aging adults, people prone to joint pain and anyone hoping to transition from a sedentary to a more active lifestyle. It also gets your heart beating faster and can help strengthen and tone your muscles.

“Walking works large muscle groups -- quadriceps, hamstrings, gluteal muscles -- as well as other muscles in the lower legs and feet,” says Joanne DiFrancisco-Donoghue, a registered clinical exercise physiologist with the New York Institute of Technology College of Osteopathic Medicine.

DiFrancisco-Donoghue says that working these muscles improves circulation, increases cardiovascular endurance, boosts bone health and reduces obesity and the risk of diabetes.

Routine walking can also lower your LDL, or “bad” cholesterol, and boost your HDL, or “good” cholesterol, while improving your weight, overall fitness and mood.

If you walk outdoors, you'll reap the added benefit of vitamin D, a nutrient Americans often lack that your body synthesizes in response to sun exposure. Recent studies have shown that vitamin D could provide protection from osteoporosis, high blood pressure and cancer.

Why Speed Matters

Can Walking Be Enough to Reduce Obesity?
Photo Credit Adobe Stock/WavebreakmediaMicro

Adding a little pep to your step might also kick up walking's benefits. A 2012 study published in the journal “BMJ Open” showed that intense walking for two to four hours a week slashed participants’ risk of diabetes, heart disease and metabolic syndrome -- an obesity-related group of conditions -- by 50 percent.

The researchers, who analyzed the exercise habits and health of 10,000 adults in Denmark for a decade, found that exercise intensity matters more than total time of exercising. Brisk walking also curbed participants’ appetites, which is important for reaching and maintaining a healthy weight.

If you're daunted by imagining hip-swiveling racewalkers moving at near runners' speed, you can breathe easy. "While power walking may burn more calories over the same period of time as regular walking, we still see the significant health benefits with regular walking," John M. Martinez, M.D., sports and family medicine physician at Kaiser Permanente in San Diego.

The 2008 Physical Activity Guidelines for Americans, distributed by the Centers for Disease Control and Prevention, recommends that adults aim for 150 minutes of moderate intensity aerobic exercise, such as brisk walking, or 75 minutes of vigorous exercise, such as racewalking, every week for optimum health.

One way to determine whether you've reached moderate intensity is the "talk test." During moderately intense activity, you should be able to talk but not sing, the CDC says. During vigorous activity, you'll be able to say only a few words before breaking to breathe.

You can also assess intensity by time and distance. Brisk walking will take you three miles or more per hour. For more specific analyses, a personal trainer or physician can assist you in determining your ideal pace using a heart-rate monitor.

Let's Get Started!

Getting started can be the toughest part of exercise regimen, as it requires changes in your routine, the desire to get up and go and added use of your muscles and energy. Establishing a game plan can help ensure success.

"I have patients write down a specific time each day that is their exercise time and add it to their to-do list," Dr. Martinez says. He also recommends walking with a partner, tracking your activity and if you're older or previously sedentary, walking during TV commercial breaks.

DiFrancisco-Donoghue recommends starting out with a stopwatch and pedometer, which counts your steps and analyzes your distance by detecting motion. "Start with 10 to 15 minutes of walking each day," she says.

"Don't walk 30 minutes right away, because this will lead to overuse injuries and can also be discouraging if you are not able to complete the session.” She recommends adding five minutes each week until you've reached your goal.

So What's Next?

Walking might be all your body needs to reach and maintain physical fitness if you routinely walk far enough and at an effective pace. Once the exercise seems easy -- meaning you barely break a sweat or you stop noticing any physical improvement -- increasing your distance, frequency or intensity can help.

Even if walking seems sufficient, you may decide to branch out and try other forms of exercise. "Walking is an easy introduction into the world of exercise and fitness," Dr. Martinez says. "Patients that start off with a simple walking program, and then continue on to more intense exercise programs such as yoga, running half-marathons and even a few that have completed Ironman triathlons."

Attempting to reduce his 280 pounds of body weight, one of Martinez's former patients began taking short walks around his workplace. Once he gained stamina and shed excess pounds, he took up jogging, swimming and cycling. He's lost 100 pounds and is now an Ironman triathlete.

"Without taking those first few steps to walk none of the rest of his accomplishments would have been possible," Martinez says.

Bottom line: Walking alone might not be solution to the obesity epidemic in America, but it most certainly is a step in the right direction.

What Do YOU Think?

How often do you walk? Do you walk with a friend? Or walk your dog? What else do you do to make walking fun? Do you have a favorite walking playlist? What other forms of exercise do you participate in? Do you thinking walking is enough to reduce the incidence of obesity in America? What else do you think is needed? Share your thoughts, suggestions and questions in the comments below!

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