Weight Change After Roux-en Y Gastric Bypass, Physical Activity and Eating Style: Is There a Relationship?

Valerie M. Monpellier*, Ignace M C Janssen, Evangelia E. Antoniou, Anita T.M. Jansen

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


BACKGROUND: Insufficient weight loss and weight regain is seen in 20-30% of the post-bariatric population. More knowledge about the effect of physical activity and eating style on weight change after Roux-en-Y gastric bypass is essential since behaviour can be modified and thereby results improved. The goal of this study is to determine the relationship between weight change, self-reported physical activity and eating style.

METHODS: Weight, physical activity (PA) and eating style (ES) were assessed before surgery and 15, 24, 36 and 48 months after surgery. A linear mixed model was performed to assess the association between the change in PA and ES and percentage total weight loss (% TWL).

RESULTS: There were 4569 patients included. Preoperative PA and ES were not related to weight change. Change in PA was positively associated with % TWL at 15, 36 and 48 months follow-up. Change in emotional eating was negatively related to % TWL at all follow-up moments. Change in external eating was only negatively related to weight loss at 24 months follow-up. Change in restrained eating was negatively associated with weight loss up to 36 months follow-up. More restrained eating at 36 months follow-up was related to higher weight regain, and more emotional eating at 48 months to 48-month weight regain.

CONCLUSION: Preoperative self-reported PA and ES did not predict weight change after RYGB. Being are more physically active and showing less emotional and restrained eating was related to a higher weight loss. Emotional and restrained eating were related to higher weight regain.

Original languageEnglish
Pages (from-to)526-533
Number of pages8
JournalObesity Surgery
Issue number2
Early online date3 Nov 2018
Publication statusPublished - Feb 2019


  • Eating style
  • Physical activity
  • Roux-and-Y gastric bypass
  • Weight loss
  • Weight regain

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