Weight loss over time. Concomitants and consequences of a decreasing rate

Area of Science:

• Behavioral Science
• Public Health
• Weight Management Studies

Background:

• Community-based weight-control programs aim to reduce participant body weight.
• Initial rapid weight loss is often followed by a decelerating rate of loss.

Purpose of the Study:

• To investigate the factors contributing to the decelerating rate of weight loss in a community-based program.
• To identify predictors of attrition in weight-control interventions.

Main Methods:

• Analysis of weight loss rates in women enrolled in a community-based program.
• Exploration of potential contributing factors: food intake, fluid loss, metabolic rate, and physical activity.
• Comparison of attrition predictors (demographic, personal history, psychologic factors) with disillusionment.

Main Results:

• A decelerating rate of weight loss was observed.
• Changes in food intake, fluid loss, metabolic rate, and physical activity may explain the decelerating rate.
• Disillusionment with failed initial weight loss predicted attrition better than other factors.

Conclusions:

• Explaining physiological changes and encouraging sustained physical activity are crucial for program adherence.
• Addressing participant expectations regarding weight loss rates can mitigate disillusionment and reduce attrition.