Featured Research

from universities, journals, and other organizations

Obese Americans get less than one minute of vigorous activity per day, research shows

Date:
February 12, 2014
Source:
University of South Carolina
Summary:
Researchers have validated a new method for calculating physical activity, sedentary behavior, and the food energy requirements of Americans. The results suggest that as a nation, we spend more than 15 hours per day sleeping and sitting, and that obese men and women spend less than one minute per day in vigorous activity.

Researchers at the University of South Carolina’s Arnold School of Public Health have validated a new method for calculating physical activity, sedentary behavior, and the food energy requirements of Americans. The results suggest that as a nation, we spend more than 15 hours per day sleeping and sitting, and that obese men and women spend less than one minute per day in vigorous activity.

The study, led by Arnold School exercise scientist and epidemiologist Edward Archer and published in the journal Mayo Clinic Proceedings, used accelerometry based technology to validate a protocol for calculating energy expenditure and food energy requirements. The study of the Physical Activity Ratio (PAR) protocol is significant because it provides the first nationally representative estimates of total daily energy expenditure, physical activity and sedentary behavior for the U.S. population.

“In the past, physicians and researchers used questionnaires to obtain estimates of lifestyle factors such as physical activity, exercise, sedentary behavior, and diet,” Archer said. “Unfortunately, this method rarely provided accurate or reliable data, and without valid estimates, public health policy and food-based guidelines are ineffective and/or counterproductive.”

“Conventional wisdom and research over the past five decades suggest that obese men and women engage in less physical activity than normal weight individuals,” Archer said. “With results from this study taken into account, and the overwhelmingly sedentary nature of the current U.S. population, the message to ‘move more, sit less’ is sound, empirically supported advice that is easily understood by health care professionals and the public.”

Data sets for the study were obtained from the National Health and Nutrition Examination Survey 2005-2006, a complex sample of the U.S. population conducted by the Centers for Disease Control and Prevention, and included adults age 20 to 74. The sample population was then divided into three Body Mass Index (BMI) categories: normal weight (18-25 kg/m2), overweight (25-29.9 kg/m2) and obese (30 kg/m2 or more) and took into account all factors contributing to energy expenditure, including sleep, and the digestion and metabolism of food.

The study found that the 1,272 men and 1,325 women that comprised the final sample exhibited key differences based on sex and BMI. Men were taller, heavier, and had greater resting energy expenditure than women. Men also spent more hours per day engaging in moderate and vigorous physical activity, and reported less sleep.

Not surprisingly, obese men and women were significantly less physically active and spent more time in sedentary behaviors than their normal weight counterparts. Obese men and women also reported less sleep and spent almost no time in more intense forms of physical activity. “Given that physical inactivity is now a leading cause of death and disability in the world, these data are essential in advancing the science of obesity and health,” Archer said.


Story Source:

The above story is based on materials provided by University of South Carolina. Note: Materials may be edited for content and length.


Cite This Page:

University of South Carolina. "Obese Americans get less than one minute of vigorous activity per day, research shows." ScienceDaily. ScienceDaily, 12 February 2014. <www.sciencedaily.com/releases/2014/02/140212132644.htm>.
University of South Carolina. (2014, February 12). Obese Americans get less than one minute of vigorous activity per day, research shows. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2014/02/140212132644.htm
University of South Carolina. "Obese Americans get less than one minute of vigorous activity per day, research shows." ScienceDaily. www.sciencedaily.com/releases/2014/02/140212132644.htm (accessed July 29, 2014).

Share This




More Health & Medicine News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Ebola Virus Threatens West Africa

Deadly Ebola Virus Threatens West Africa

AP (July 28, 2014) West African nations and international health organizations are working to contain the largest Ebola outbreak in history. It's one of the deadliest diseases known to man, but the CDC says it's unlikely to spread in the U.S. (July 28) Video provided by AP
Powered by NewsLook.com
$15B Deal on Vets' Health Care Reached

$15B Deal on Vets' Health Care Reached

AP (July 28, 2014) A bipartisan deal to improve veterans health care would authorize at least $15 billion in emergency spending to fix a veterans program scandalized by long patient wait times and falsified records. (July 28) Video provided by AP
Powered by NewsLook.com
Two Americans Contract Ebola in Liberia

Two Americans Contract Ebola in Liberia

Reuters - US Online Video (July 28, 2014) Two American aid workers in Liberia test positive for Ebola while working to combat the deadliest outbreak of the virus ever. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
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.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

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