Small elliptical exercise device may promote activity while sitting

January 21, 2014 by A'ndrea Elyse Messer

(Medical Xpress)—People may be able to keep the weight off by using a compact elliptical device while sitting at a desk or watching TV, according to Penn State College of Medicine researchers.

"Adults in the United States spend more than 11 hours per day sitting while doing things like watching television and working on a computer," said Liza Rovniak, assistant professor of medicine and public health sciences. "Evidence suggests that this sedentary lifestyle has contributed to average weight gains of one to two pounds per year among U.S. adults over the last 20 years."

While moderate and are usually emphasized in exercise programs, low-intensity physical activity may also help with weight control. Combining low-intensity physical activity with things like watching television could also help eliminate the time barrier that prevents .

The researchers looked at using a compact elliptical device to increase while sitting. They chose this device because it is lower in cost than other options like treadmill desks, is quiet and requires only a small floor area.

Scientists selected 32 participants who used the elliptical device while sitting in a standard office chair. The researchers monitored their energy use, heart rate and other biometrics. They were also asked how much interest they had in using the device while watching television, using a computer, reading, in a meeting and in general.

The results suggest a majority—86 percent—of participants could expend enough energy in one hour a day to prevent weight gain. The other 14 percent would have had the same result if they increased the pace of pedaling slightly.

"Assuming participants held other components of energy balance constant, daily use of the elliptical device for one hour might result in a weight loss of 5.2 pounds per year and help prevent the one-to-two pound annual among U.S. adults," Rovniak said.

Participants also reported a high interest in using an elliptical device while watching television and using a computer, but not while in office meetings.

"Since and using a computer are among the most common reasons people sit, the compact elliptical device might hold potential as a way to increase people's daily caloric expenditure," Rovniak said.

Because of its compact design, it can be placed in areas that are close to where a person sits, giving visual prompts to use the device.

The researchers still need to study whether compact elliptical devices can sustain increases in the amount of energy expended over longer periods of time and whether the devices improve health.

"By continuing to explore how best to use elliptical devices and other energy expenditure strategies across diverse settings, it may ultimately be possible to reach enough people to alter rates of chronic diseases associated with inactive lifestyles," Rovniak said.

Other researchers on this project were LeAnn Denlinger, Ellen Duveneck and Christopher Sciamanna, Department of Medicine, Penn State Milton S. Hershey Medical Center; Lan Kong, Department of Public Health Sciences; Andris Freivalds, Department of Industrial and Manufacturing Engineering, Penn State; and Chester A. Ray, Department of Medicine, Penn State College of Medicine. This research appeared in Journal of Science and Medicine in Sport.

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alfie_null
not rated yet Jan 22, 2014
Perhaps attached to an app that make your computer/TV screen get smaller and smaller if you don't pedal it hard enough.

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