Navegando por Palavras-chave "Strenuous Exercise"

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    Efeito da suplementação de probióticos sobre função de monócitos e endotoxemia após exercício extenuante
    (Universidade Federal de São Paulo (UNIFESP), 2021) Silva, Edgar Tavares da [UNIFESP]; Santos, Ronaldo Vagner Thomatieli dos [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Different physiological and biochemical responses are generated before, during and after performing strenuous physical exercises with high ability to negatively impact the immune and gastrointestinal system, promoting transiently immunodepression. Strategies are adopted to minimize the deleterious effects caused by strenuous physical exercise on the immune system, including macro and micronutrient supplementation. Emerge the interest in evaluating the effects of probiotic supplementation on immune function and maintenance of gastrointestinal and immunological homeostasis in athletes. Therefore, the present study aimed to evaluate the monocyte's function, endotoxemia and intestinal microbiota of 27 individuals who performed an official Marathon race (42,195m). The athletes were supplemented with probiotics for four weeks with Lactobacillus acidophilus and Bifidobacterium animalis subsp lactis 1 x 1010 Colony Forming Units (CFU) or placebo. Before the supplementation period (Basal), after the supplementation period/referring to the 24 hours before the race (Pre-race), one hour after (Post-race) and five days after the marathon (Recovery) blood and faeces were collected to determine the plasma concentration of cytokines, monocyte function, microbiota analysis and endotoxemia. The probiotic group significantly increased the phagocytosis rate after thirty days of probiotic supplementation. The production of hydrogen peroxide and cytokines by monocytes did not differ between the groups. After the marathon race, plasma IL-10 increase and five days after, plasma IL-15 increase and plasma IL-8 decrease in both groups. The intestinal microbiota does not differ between groups. The symptoms and severity of URTI were not different between groups. We concluded that daily supplementation with probiotics for 4 weeks in runners increased phagocytosis, but were not able to modulate the intestinal microbiota and part of the cellular functionality studied after marathon running.