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Warren G. Thompson, MD; James A. Levine, MD, PhD

Arch Intern Med. 2008;168(14):1559-1560.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Although dieting has a modest short-term effect in the treatment of obesity, the long-term benefit has yet to be demonstrated.¹ This is not surprising because caloric intake has not increased during the last 100 years. Rather, there has been a sharp drop in caloric expenditure secondary to changes at the workplace and in the home.² Surveys of people who have sustained significant weight loss for more than 5 years demonstrate that a significant increase in energy expenditure is necessary.³ In this issue of the Archives, Jakicic et al report 2-year results from a study designed to determine the duration and intensity of physical activity necessary to maintain weight loss. They conclude that 2000 kcal/wk of exercise is needed to sustain weight loss.

Of 196 women in this study, 47 were able to sustain a weight loss of 10% of their initial . . . [Full Text of this Article]

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Effect of Exercise on 24-Month Weight Loss Maintenance in Overweight Women
John M. Jakicic, Bess H. Marcus, Wei Lang, and Carol Janney
Arch Intern Med. 2008;168(14):1550-1559.
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