Researchers claim that fifty-five is miraculous figure for exercising for weight loss.
As per new study, overweight and obese women interested in weight loss, exercising for 55 minutes, 5 days per week is required to shed 10% of total body weight over 2 years.
Current recommended duration is 30 minutes of medium physical activity on most days of the week, adding up to150 minutes a week.
In the period from 1st December 1999 to 31st January 2003, researchers hired 201 overweight and obese women having body mass index of 27-40 in the age group of 21-45 years.
The subjects were told to consume 1,200 to 1,500 calories a day, and were divided into 4 groups, each doing different level of activity. All groups met and discussed eating and exercise habits and also got helpful phone calls from the research team during a 2 year period.
After 6 months, subjects in all the groups lost 8-10% of their body weight on an average, though they regained the weight during the further 18 months.
Those women who maintained a weight loss of 10% or more during the 2 year period (24.6% of the subjects) worked out for 275 minutes — instead of 150. They also talked more regularly with the research team, consumed lesser calories and ate less fat.
The authors say, this explains how much physical activity should be done for obtaining and retaining this amount of weight loss, but also shows the problem of maintaining this amount of physical activity.
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