RT Journal Article T1 Supervised Exercise Immediately After Bariatric Surgery: the Study Protocol of the EFIBAR Randomized Controlled Trial. A1 Artero, Enrique G A1 Ferrez-Márquez, Manuel A1 Torrente-Sánchez, María José A1 Martínez-Rosales, Elena A1 Carretero-Ruiz, Alejandro A1 Hernández-Martínez, Alba A1 López-Sánchez, Laura A1 Esteban-Simón, Alba A1 Romero Del Rey, Andrea A1 Alcaraz-Ibáñez, Manuel A1 Rodríguez-Pérez, Manuel A A1 Villa-González, Emilio A1 Barranco-Ruiz, Yaira A1 Martínez-Forte, Sonia A1 Castillo, Carlos A1 Gómez Navarro, Carlos A1 Aceituno Cubero, Jesús A1 Reyes Parrilla, Raúl A1 Aparicio Gómez, José A A1 Femia, Pedro A1 Fernández-Alonso, Ana M A1 Soriano-Maldonado, Alberto K1 Bariatric surgery K1 Exercise K1 Obesity K1 Protocol K1 Randomized controlled trial (RCT) AB Previous 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. YR 2021 FD 2021-07-15 LK http://hdl.handle.net/10668/18204 UL http://hdl.handle.net/10668/18204 LA en DS RISalud RD Jul 4, 2025