Artero, Enrique GFerrez-Márquez, ManuelTorrente-Sánchez, María JoséMartínez-Rosales, ElenaCarretero-Ruiz, AlejandroHernández-Martínez, AlbaLópez-Sánchez, LauraEsteban-Simón, AlbaRomero Del Rey, AndreaAlcaraz-Ibáñez, ManuelRodríguez-Pérez, Manuel AVilla-González, EmilioBarranco-Ruiz, YairaMartínez-Forte, SoniaCastillo, CarlosGómez Navarro, CarlosAceituno Cubero, JesúsReyes Parrilla, RaúlAparicio Gómez, José AFemia, PedroFernández-Alonso, Ana MSoriano-Maldonado, Alberto2023-02-092023-02-092021-07-15http://hdl.handle.net/10668/18204Previous studies have investigated weight loss caused by exercise following bariatric surgery. However, in most cases, the training program is poorly reported; the exercise type, volume, and intensity are briefly mentioned; and the sample size, selection criteria, and follow-up time vary greatly across studies. The EFIBAR study aims to investigate over 1 year the effects of a 16-week supervised exercise program, initiated immediately after bariatric surgery, on weight loss (primary outcome), body composition, cardiometabolic risk, physical fitness, and quality of life in patients with severe/extreme obesity. The EFIBAR study is a parallel-group, superiority, randomized controlled trial (RCT), comprising 80 surgery patients. Half of the participants, randomly selected, perform a 16-week supervised exercise program, including both strength and aerobic training, starting immediately after the surgery (7-14 days). For each participant, all primary and secondary outcomes are measured at three different time points: (i) before the surgery, (ii) after the intervention (≈4 months), and (iii) 1 year after the surgery. The EFIBAR study will provide new insights into the multidimensional benefits of exercise in adults with severe/extreme obesity following bariatric surgery. EFIBAR randomized controlled trial was prospectively registered at Clinicaltrials.gov (NCT03497546) on April 13, 2018.enAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/Bariatric surgeryExerciseObesityProtocolRandomized controlled trial (RCT)AdultBariatric SurgeryExerciseExercise TherapyHumansObesity, MorbidQuality of LifeRandomized Controlled Trials as TopicTreatment OutcomeWeight Lossresearch article34268680open access10.1007/s11695-021-05559-81708-0428PMC8458203https://link.springer.com/content/pdf/10.1007/s11695-021-05559-8.pdfhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8458203/pdf