Menopause and weight loss (ME-WEL) randomised controlled trial: an e-health cognitive-behavioural group intervention for weight management in postmenopausal women.

Background: Successful weight management is important for menopausal women, given the high prevalence of overweight and obesity. This study evaluated the efficacy of a cognitive-behavioural e-Health group intervention for weight management in postmenopausal women with overweight or obesity. The intervention incorporates the Health Action Process Approach, Health Belief Model, Oxford Food and Activity Behaviours, and Behaviour Change Techniques.

Methods: This randomised controlled trial involved 27 participants - 13 in the intervention group (IG), who received an 8-week intervention, and 14 in the control group (CG), who received an informative leaflet. Five longitudinal assessments were performed. All variables were measured using quantitative instruments, and Body Mass Index was calculated from self-reported weight and height. Latent growth models (LGM) were conducted according to the intention-to-treat principle.

Results: The LGM showed that some weight management strategies increase significantly over time in IG (energy compensation, regulation: rule setting) and regarding subjective well-being (positive affect and satisfaction with life). Additionally, the IG showed a decrease in emotional and uncontrolled eating, and an increase in self-esteem and health-related determinants.

Discussion: Long-term effects of this cognitive-behavioural intervention were found in some measures, while others only increased for a certain period. Increasing session frequency and incorporating monthly maintenance sessions are recommended to achieve more sustainable results over time.