Effect of supplementation with selenium and vitamins C and E on hematological biomarkers in military personnel during intense and prolonged physical training

• Autor(a) principal: Sena, Marcio
• Data de Publicação: 2022
• Outros Autores: Fortes, Marcos, Mello, Danielli, Lisboa, Sergio, Pereira, Marcos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: https://doi.org/10.29073/jim.v3i1.486
• topic: Estresse Oxidativo; Exercício Físico; Hemograma; Militares; Antioxidants; Oxidative Stress; Physical Exercise; Blood Count; Military

In this study, we investigated the effect of supplementation with selenium, vitamins C and E on hematological biomarkers in military personnel undergoing vigorous and prolonged physical exercise (VPPE). Twenty-four men (32.0 ± 7.2 years) participated for 37 days (18 prior to training and 19 during VPPE). Two groups were randomly separated: Supplemented Group (SG) and Placebo Group (PG). The SG (n=13) ingested capsules containing chelated selenium (0.06 mg), vitamin C (1000 mg) and vitamin E (500 mg) and the PG: (n=11) ingested (1500 mg of starch). Blood was collected before the start of the study (T0); at the end of the first (T1) and third (T2) weeks of VPPE. Data were analyzed by ANOVA 3X2 (p<0.05). Hemoglobin decreased in T1 and T2 in SG and PG versus T0. Mean corpuscular hemoglobin reduced in T1 and T2 in SG and in PG only in T2 versus T0. The mean corpuscular hemoglobin concentration decreased in SG at T1 and T2 versus T0, but in PG it reduced at T2 versus T0 and T1. No significant differences were observed with red blood cells, hematocrit, mean corpuscular volume and RDW. The VPPE induced a decrease in hemoglobin and supplementation did not provide protection against this damage.