Navigation Links
Being Active an Hour a Day Puts Brakes on Weight Gain
Date:3/23/2010

Walking, biking, dancing can all help normal-weight women as they age, study finds

TUESDAY, March 23 (HealthDay News) -- An hour a day of moderate-intensity exercise will prevent weight gain in normal-weight women, middle age and older, according to a new study.

"'Moderate intensity' means brisk walking, casual bicycling, ballroom dancing, playing with the grandchildren," said Dr. I-Min Lee, lead author of the study, which is published in the March 24/31 issue of the Journal of the American Medical Association.

"It's nothing special," added Lee, who is an associate epidemiologist with the division of preventive medicine at Brigham and Women's Hospital and an associate professor of medicine at Harvard Medical School in Boston. "For someone who wants to eat normally, this is enough."

On the other hand, those who engage in something more vigorous -- like jogging, playing tennis or swimming laps -- can get away with 30 minutes a day and no weight gain as they age.

The findings did not hold true, however, for overweight and obese women.

In the current age of fast food and big-screen TVs, about two-thirds of American adults are overweight or obese. Even among the healthiest, weight tends to creep up with age.

"We know that being overweight and obese adversely affects health," Lee said.

Despite the dozens and dozens of commercial and even medically supervised weight-loss programs that are available, people who lose weight still tend to gain it back.

"We thought, 'Wouldn't it be better to prevent the weight gain in the first place so you don't have to worry about sustaining the weight loss after that?'" Lee said.

And though tons of research has addressed ways to help overweight and obese people lose weight, much less research has focused on how to prevent weight gain over time in normal-weight individuals.

U.S. government recommendations suggest exercising 30 minutes a day to lower the risk of chronic disease.

To find out what levels of physical activity are needed to successfully maintain weight, Lee and her colleagues followed 34,079 women, who averaged 54 years old at the start of the study, for 13 years. The women reported their physical activity and had their weight checked every three years.

Physical activity levels were divided into three categories: 420 minutes a week (60 minutes a day); 150 to 420 minutes a week (about 20 to 60 minutes daily); and less than 150 minutes a week.

Overall, the participants gained an average of 2.6 kilograms (5.7 pounds) over the 13 years, considered average for the general population.

Women in the two lesser categories of exercise gained more weight than those who exercised 60 minutes a day, the study found. There was no difference in weight gain between the two less active groups.

"The successful weight maintainers kept a normal BMI [body mass index] over a long period of time," Lee said, referring to an indicator of body fatness calculated from a person's weight and height. "They gained less than five pounds, and they constantly expended 60 minutes a day in moderate level activity."

Lee stressed that she didn't want people to feel discouraged if they weren't making the 60 minutes a day. "It's very clear that even the lower levels of physical activity reduce the risk of important chronic diseases, including cardiovascular disease and certain types of cancer," she said. "There are still some health benefits."

Eugenio Lopez, a registered nurse with the Texas A&M Health Science Center Coastal Bend Health Education Center in Corpus Christi, said the study "showed that you do need physical activity just to maintain, let alone lose, actual pounds. ... but they started off with individuals who were already at an ideal body mass index, which is absolutely irrelevant here in South Texas."

"It was interesting that it took 60 minutes just to maintain that particular body mass index," Lopez said. "I would have really been interested to see what it would take for somebody already above their ideal BMI to actually lose weight -- how much physical activity would actually be required."

Dr. Suzanne Steinbaum, director of women and heart disease at Lenox Hill Hospital in New York City, said that, as people age, "it's clearly harder to keep the same weight so you have the option of exercising every day for an hour, really understanding that calorie restriction [might] need to be a huge part of your lifestyle because your natural tendency is to gain weight."

The bottom line? "Everyone needs to exercise as much as they can," Steinbaum said.

More information

The U.S. Centers for Disease Control and Prevention has more on healthy weight.



SOURCES: I-Min Lee, M.D., Sc.D., associate epidemiologist, division of preventive medicine, Brigham and Women's Hospital, and associate professor, medicine, Harvard Medical School, Boston; Suzanne Steinbaum, D.O., director, women and heart disease, Heart and Vascular Institute, Lenox Hill Hospital, New York City; Eugenio Lopez, R.N., nurse, Texas A&M Health Science Center Coastal Bend Health Education Center, Corpus Christi, Texas; March 24/31, 2010, Journal of the American Medical Association


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Stop Ripping Me Off! Is the Title of a New Consumer Protection Book Being Released Today
2. The Chopra Center for Wellbeing Launches “Manifest the Life You Deserve”
3. Hearts of Hospice Patients Being Needlessly Shocked
4. New Book Reveals Eye-Opening Look Inside Physical and Spiritual Well-Being
5. Maternal Health Supplies Being Rushed To Haiti
6. Addictive effects of caffeine on kids being studied by UB neurobiologist
7. New study explores role of sexual, social behaviors in seniors well-being
8. The Chopra Center for Wellbeing Launches Vedamune: An Ayurvedic Supplement to Support The Immune System
9. 2009 H1N1 Influenza Vaccination Being Offered at Various Affiliated Campuses of the Institute of Women's Health of North America in Florida
10. Interactive Web Site Provides Resources So Seniors May Age in Place
11. Tahitian Noni Pure is The Most Concentrated Bioactive Beverage Available
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... ... June 25, 2016 , ... Experts from the American Institutes ... Research Meeting June 26-28, 2016, at the Hynes Convention Center in Boston. , ... advance care planning, healthcare costs and patient and family engagement. , AIR researchers ...
(Date:6/25/2016)... ... June 25, 2016 , ... "With 30 hand-drawn hand gesture ... said Christina Austin - CEO of Pixel Film Studios. , ProHand Cartoon’s package ... Final Cut Pro X . Simply select a ProHand generator and drag it ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin Johnson has dedicated ... has implemented orthobiologic procedures as a method for treating his patients. The procedure ... doctors to perform the treatment. Orthobiologics are substances that orthopaedic surgeons use to ...
(Date:6/24/2016)... ... June 24, 2016 , ... A recent article published ... unfamiliar with. The article goes on to state that individuals are now more comfortable ... less common operations such as calf and cheek reduction. The Los Angeles area medical ...
(Date:6/24/2016)... , ... June 24, 2016 , ... Marcy was in a crisis. Her son James, ... out at his family verbally and physically. , “When something upset him, he couldn’t control ... use it. He would throw rocks at my other children and say he was going ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... INDIANAPOLIS , June 23, 2016 If ... Leaders Scholarship is any indication, the future is in ... at www.diabetesscholars.org by the Diabetes Scholars Foundation ... the way of academic and community service excellence. ... since 2012, and continues to advocate for people with ...
(Date:6/23/2016)... Revolutionary technology includes multi-speaker listening to conquer ... in advanced audiology and hearing aid technology, has today ... world,s first internet connected hearing aid that opens up ...      (Photo: http://photos.prnewswire.com/prnh/20160622/382240 ) , ... , TwinLink™ - the first dual communication ...
(Date:6/23/2016)... Pa. , June 23, 2016 The ... in an outpatient dialysis facility.  Treatments are usually 3 ... 6 hours per visit, including travel time, equipment preparation ... a patient, but especially grueling for patients who are ... of a skilled nursing and rehabilitation centers for some ...
Breaking Medicine Technology: