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t what point is it necessary to exercise to lose weight and maintain that loss ?According to a recent study with 210 women obese or overweight, followed for 2 years, those who had managed to lose about 10% of their weight and maintain that loss were on average 55 minutes of weight loss exercise a day, five days per week.
Initially all participants were sedentary. They were randomly assigned to one of 4 groups with different objectives concerning the intensity of weight loss exercises and the amount of calories burned.
They should consume between 1200 and 1500 calories per day. Of these participants, 170 have persisted until the end of the study 2 years.
They were encouraged to allocate their time to exercise five days a week in sessions of at least 10 minutes. They received a carpet walk to facilitate achieving their goal and learned to measure their heart rate to control the intensity of exercises.
After six months, women in 4 groups had lost an average of 8% to 10% of their initial weight. But it was more difficult to maintain that weight loss. Most have regained lost weight.
Nearly 25% have maintained their loss. These women reported having more physical exercise than others. They were about 275 minutes of weight loss exercise per week higher than their level of activity of departure.
They had increased physical activity in their leisure time and had made some changes in their habits like taking the stairs and move more at home and at work. They had also increased following the dietary recommendations than others.
The authors conclude that a relatively high level of physical activity is required to lose weight and maintain the loss. The general recommendations of health authorities who are 30 minutes per day, 5 times per week of activity of average intensity would be insufficient to lose weight.
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