How much less time

unduhan-27People who want to keep weight off are often told to exercise more, but simply spending less time sitting down, and more time doing light activities, like taking a stroll around the office, may also help people maintain their weight loss, a new study suggests.

In the study, researchers analyzed information from 30 people who had lost at least 30 pounds (13.6 kilograms) and kept it off for at least a year. The study also included 33 people whose weight was in the normal range, and 27 people who were overweight or obese.

All participants wore an activity-tracking device for one week. The small, rectangular device, called ActivPAL, sticks to the skin on the thigh, and is particularly good at distinguishing when people are standing versus sitting or lying down, said study researcher Danielle Ostendorf, a doctoral candidate in epidemiology at the Colorado School of Public Health, who presented the findings here this week at the meeting of the American Public Health Association. (The device is known as an inclinometer, which measures the angle or tilt of an object.)

The study found that the people who had maintained their weight loss were more active than both the normal-weight and overweight participants. Overall, the weight-loss maintainers walked more than 12,000 steps per day, on average, compared with about 9,000 a day for normal-weight participants and about 7,000 a day for overweight participants. [The Best Way to Keep Weight Off]

The weight-loss maintainers also spent about 40 minutes per day doing some type of moderate to vigorous physical activity, compared with 17 minutes per day for normal-weight participants and 9 minutes per day for overweight participants. (Examples of moderate to vigorous activities include things running, brisk walking or biking.)