Evaluation of urinary protein and creatinine concentration in athletes after high-performance physical exercise

• Autor(a) principal: Tavares, Ana Sofia
• Data de Publicação: 2019
• Outros Autores: Ladeira, Carina, Quintão, João Filipe, Luís, Maria Carolina, Pereira, Miguel Oliveira, Abreu, Renato
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.21/12113
• topic: Exercise; Protein; Creatinine; Urine; RPC; Protein supplementation

Intense physical exercise without a planned or structured physical activity can induce potentials risks in the human body. The objective of this study is to verify the existence of a modulation of the values of creatinine and urinary proteins after performing a training session of high intensity. Furthermore, we intend to verify the existence of significant alterations of these analytes in sportsmen who regularly use protein supplementation, compared to a group of athletes who do not use supplementation after performing the same high-performance training. A convenience sample of 18 sportsmen attending gyms, both genders and between the ages of 18 and 35 were divided into two groups: users of protein supplementation (n = 9) and individual non-users of protein supplementation (n = 9). The two groups were subjects to a physical activity training session of high intensity, performed by a qualified professional. Urine samples were collected before and after the training session and proteinuria and creatinuria were analyzed by the Abbott® Architect C8200 system. Statistical treatment of the results was performed using the SPSS (version 22), as well as descriptive and inferential statistics. Results showed that in both groups, physical exercise-induced a significant increase in all these parameters. Both levels of protein and creatinine increased in urine approximately twice more after the physical training with an estimated time of 45 minutes. However, no statistically significant changes were observed from one group to another, although there were slight changes in the user group of protein supplementation.