Featured Research

from universities, journals, and other organizations

Morbidly Obese Sedentary For More Than 99 Percent Of Day, Study Finds

Date:
March 26, 2009
Source:
Wiley-Blackwell
Summary:
A new study examines the average fitness level of the morbidly obese (body mass indexes between 40.0 and 49.9). The findings show that the tested population was sedentary for more than 99 percent of the day and, on average, walked less than 2,500 steps per day -- far below healthy living guidelines of 10,000 steps per day.

A new study appearing in Clinical Cardiology examines the average fitness level of the morbidly obese (body mass indexes between 40.0 and 49.9). The findings show that the tested population was sedentary for more than 99 percent of the day and, on average, walked less than 2,500 steps per day – far below healthy living guidelines of 10,000 steps per day. The results provide important links between obesity, poor fitness and cardiovascular disease.

The study used a precise body sensor to continually measure physical activity, caloric expenditure and movement minute-by-minute over a 72-hour period within their home environments. Following collection of the data, structured cardiorespiratory fitness testing was performed on each subject.

Most morbidly obese participants in the study were markedly sedentary. On average, 23 hours and 51.6 min per day were spent sleeping or engaged in sedentary activity and the remaining 8.4 minutes were spent in moderate activity. On average, subjects took 3,763 2,223 steps.

The highest level of activity attained by any single individual during one 24-hour period was 28 minutes of moderate activity. No length of time was spent at a high level of activity for any of the individuals while under observation. Two individuals in this study spent the entire monitoring period in sedentary activity.

Obesity contributes to five of the top 10 diseases with the highest mortality rates: cardiovascular disease, stroke, diabetes, hypertension and cancer. Increasingly, new technologic advances encourage individuals to move less and expend fewer calories.

However, it has been shown that, despite being obese, individuals with moderate-to-high levels of cardiorespiratory fitness have cardiovascular death rates that are 71 percent lower than their unfit counterparts. Moreover, low cardiorespiratory fitness is an independent predictor of mortality in normal weight, overweight and obese individuals alike. Morbidly obese individuals, however, have severely reduced cardiorespiratory fitness that is similar to those with established systolic heart failure.

Despite the lack of moderate or vigorous physical activity in the studied population, lighter amounts of physical activity may yield significant health benefits. Even light walking in speeds of 1 to 2 miles per hour shows significant health benefits. Over time, increasing amounts of light physical activity may improve aerobic capacity and ultimately reduce mortality.

“Our findings have important implications for the relationship between obesity and physical activity,” say authors Thomas Vanhecke, Barry Franklin,Wendy Miller, Adam deJong, Catherine Coleman and Peter McCullough of William Beaumont Hospital. “Our findings will add incentive to increase physical fitness in this population and increase the awareness of healthcare professionals of the need for recommending physical activity in their patients.”


Story Source:

The above story is based on materials provided by Wiley-Blackwell. Note: Materials may be edited for content and length.


Journal Reference:

  1. Thomas E. Vanhecke, Barry A. Franklin, Wendy M. Miller, Adam T. deJong, Catherine J. Coleman, Peter A. McCullough. Cardiorespiratory Fitness and Sedentary Lifestyle in the Morbidly Obese. Clinical Cardiology, 2009; 32 (3): 121 DOI: 10.1002/clc.20458

Cite This Page:

Wiley-Blackwell. "Morbidly Obese Sedentary For More Than 99 Percent Of Day, Study Finds." ScienceDaily. ScienceDaily, 26 March 2009. <www.sciencedaily.com/releases/2009/03/090325162634.htm>.
Wiley-Blackwell. (2009, March 26). Morbidly Obese Sedentary For More Than 99 Percent Of Day, Study Finds. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2009/03/090325162634.htm
Wiley-Blackwell. "Morbidly Obese Sedentary For More Than 99 Percent Of Day, Study Finds." ScienceDaily. www.sciencedaily.com/releases/2009/03/090325162634.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