RT journal article T1 Impact of Probiotics on the Performance of Endurance Athletes: A Systematic Review A1 Díaz Jiménez, Jara A1 Sánchez Sánchez, Eduardo A1 Ordóñez Muñoz, Francisco Javier A1 Rosety Rodríguez, Ignacio A1 Díaz Ordóñez, Antonio Jesús A1 Rosety Rodríguez, Manuel A1 Rosety Rodríguez, Miguel Ángel A1 Brenes, Francisco A2 Anatomía y Embriología Humana A2 Didáctica de la Educación FísicaPlástica y Musical A2 Medicina K1 athletic K1 athletic performance K1 endurance training K1 probiotics K1 URTIs AB Background: Probiotic supplements contain different strains of living microorganisms thatpromote the health of the host. These dietary supplements are increasingly being used by athletes toimprove different aspects such as athletic performance, upper respiratory tract infections (URTIs),the immune system, oxidative stress, gastrointestinal (GI) problems, etc. This study aimed to identifythe current evidence on the management of probiotics in endurance athletes and their relationshipwith sports performance. Methods: A systematic review of the last five years was carried out inPubMed, Scopus, Web of science, Sportdiscus and Embase databases. Results: Nine articles metthe quality criteria. Of these, three reported direct benefits on sports performance. The remainingsix articles found improvements in the reduction of oxidative stress, increased immune responseand decreased incidence of URTIs. There is little scientific evidence on the direct relationshipbetween the administration of probiotics in endurance athletes and sports performance. Conclusions:Benefits were found that probiotics could indirectly influence sports performance by improving otherparameters such as the immune system, response to URTIs and decreased oxidative stress, as well asthe monitoring of scheduled workouts. PB MDPI SN 1660-4601 YR 2021 FD 2021-11 LK http://hdl.handle.net/10498/26187 UL http://hdl.handle.net/10498/26187 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 08-nov-2026