Browsing by Author "Ramos, Guilherme Passos"

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    Aerobic training modulates the increase in plasma concentrations of cytokines in response to a session of exercise.
    (2021) Fonseca, Tatiana Ramos; Mendes, Thiago Teixeira; Ramos, Guilherme Passos; Cabido, Christian Emmanuel Torres; Morandi, Rodrigo Figueiredo; Ferraz, Fernanda Oliveira; Miranda, Aline Elizabeth da Silva; Mendonça, Vanessa Amaral; Teixeira, Antônio Lúcio; Garcia, Emerson Silami; Silva, Albená Nunes da; Teixeira, Mauro Martins
    Acute physical exercise can modulate immune function. For example, acute exercise is known to increase the circulating concentration of cytokines. Exercise is also known to modulate immune function chronically. It is not known whether exercise training can result in training of the immune system. Here, we investigated the effects of six weeks of aerobic training on cytokine responses induced by acute exercise until fatigue. Twelve healthy men performed a fatiguing exercise at the anaerobic threshold (AT) intensity. After the training period, the participants performed another bout of acute exercise at the same duration and intensity of the pretraining situation. ,e analysis was made at the beginning, end, and at 10, 30, and 60 minutes during the recovery period. Training at AT induced a gain of 11.2% of exercise capacity. Before training, a single bout of acute exercise induced a significant increase in plasma levels of cytokines, including IL-6, TNF-α, sTNFR1, IL-10, CXCL10, BDNF, leptin, resistin, and adiponectin. After six weeks of aerobic training, levels of IL-6, sTNFR1, BDNF, and leptin increased to a lesser extent after an acute bout exercise at the same absolute intensity as the pretraining period. Responses to the same relative exercise intensity were similar to those observed before exercise. ,ese results show that aerobic training is associated with training of acute immune responses to acute exercise until fatigue.
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    Intensity of official futsal matches.
    (2011) Rodrigues, Vinícius de Matos; Ramos, Guilherme Passos; Mendes, Thiago Teixeira; Cabido, Christian Emmanuel Torres; Melo, Eliney S.; Condessa, Luciano Antonacci; Coelho, Daniel Barbosa; Garcia, Emerson Silami
    The purpose of this study was to assess the intensity of official Futsal matches, expressed in different ways. Fourteen male professional Futsal players from a First Division Brazilian team volunteered to participate in this study. Maximal oxygen uptake (_ VO2max) and the heart hate (HR) and oxygen uptake (_VO2) correlation were determined for each player. The match intensity was estimated from the players’ average HR measured during 13 National Futsal League matches. The HR measurements were obtained while the players were in the court but the values recorded while the players were sitting on the bench were not considered. In addition, these HR values were used to estimate the intensity of the effort expressed as a percentage of the maximal HR (%HRmax), percentage of _ VO2max (%_VO2max), kilocalories per minute (kcal min21), and total caloric expenditure. The mean intensity of the matches was 86.4 6 3.8%HRmax, 79.269.0%_ VO2max, 18.062.2 kcal min21, and 31369.3 kcal. It was concluded that official Futsal matches have high intensity when expressed in the different ways used in this study. The information provided by this research can be used for planning the athletes’ workouts, diets, and resting periods.