Bariatric surgery, weight loss and the role of physical activity: a systematic review


  • Manuel Moya
  • Artur Hernández
  • Jose Manuel Sarabia
  • Miguel Ángel Sánchez-Martos
  • Jose Luis Hernández-Davó
  • Raúl López-Grueso
  • Adolfo Aracil
  • Diego Pastor
  • Jaime Fernández-Fernández


Obesity has become one of the major health problems of today’s society, being considered as an epidemic. For people with morbid obesity (Body Mass Index (BMI) ≥ 40 kg·m-2) who don’t lose weight using conventional weight reduction methods we must resort to bariatric surgery. There is controversy in the relationship between physical activity and weight loss after bariatric intervention. Therefore, the aim of this paper is to review and describe the different research existing about this topic. A literature review of Medline and Scopus databases was performed. From a total of 128 articles and after the exclusion criteria 24 full papers were read, out of which, 21 were observational research and 3 were experimental research. We found that physical activity positively correlated with weight loss; however, although there are no significant differences in the short term (six months), differences begin to be seen in the medium to long term (+ 9 months).


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