Browsing by Author "Baleeiro, Raianne dos Santos"

Now showing 1 - 3 of 3
  • No Thumbnail Available
    Item
    Acute volume expansion decreased baroreflex response after swimming but not after running exercise training in hypertensive rats.
    (2019) Fernandes, Élida Mercês Raimundo; Moura, Samara Silva de; Silva, Ronan Oliveira; Totou, Nádia Lúcia; Baleeiro, Raianne dos Santos; Oliveira, Emerson Cruz de; Coelho, Daniel Barbosa; Cardoso, Leonardo Máximo; Oliveira, Lenice Kappes Becker
    Background: Physical training (ET) is important to restore the reflex sensitivity involved in controlling blood pressure in various diseases. Recent investigations have demonstrated an interaction between cardiopulmonar baroreceptors and arterial baroreflex during dynamic exercise.Objective: Considering that acute and chronic hemodynamic responses to swimming (SW) are different from the race (RUN), the objective of this study was to evaluate the effect of SW and RUN on baroreflex response before and after acute volume expansion in spontaneously hypertensive rats (SHR).Methods: SHR were divided into three groups: RUN, SW and sedentary (SED) groups. After training, the mean arterial pressure (MAP) and heart rate (HR) were recorded. Baroreflex response was assessed before and after acute volume expansion.Results: Both ET conditions reduced basal levels of HR and MAP. The first volume of injected isotonic saline solution (1.25% of body weight) produced a greater decrease in HR for the SW group (−105.8 ± 8.7 bpm) compared to RUN groups (−68 ± 5.2 bpm) and SED(−49.8 ± 7.2 bpm). Both training modalities increase the baroreflex response in relation to the SED group, but after the total volume expansion, the SW group presented attenuated response (0.7 ± 0.1 μPIms/mmHg) compared to RUN (1.5 ± 0.17 PIms/mmHg) and was not different from SED group (0.8 ± 0.2 mPIms/mmHg). Conclusion: The results show that the swim-trained group has a different baroreflex response to that observed by the run-trained group after the activation of the load receptors by saline expansion.
  • No Thumbnail Available
    Item
    Efeito da ingestão de sacarose sobre o sistema cardiovascular e o rendimento físico.
    (2018) Baleeiro, Raianne dos Santos; Oliveira, Lenice Kappes Becker; Oliveira, Emerson Cruz de; Cunha, Simone de Fátima Viana da; Souza, Gabriela Guerra Leal de; Silva, Marcelo Eustáquio; Oliveira, Lenice Kappes Becker
    Sob demanda de elucidar a interação da dieta “high sugar” sob rendimento físico de individuos treinados, processos metabólicos, desenvolvimento de agravos, realizou-se uma revisão sistematica: “Efeitos da ingestão excessiva sobre os processos metabólicos e desenvolvimento de agravos”. Buscaram-se e compilaram-se artigos dos últimos 10 anos. Utilizaram-se as palavras chaves : carbohydrate; fructose; sucrose; glucose. overfeeding; sugar-sweetened beverage overfeeding. Após, realizou-se triagem e elegibilidade, extração. Demostraram-se efeitos maléficos no organismo, desenvolvimento de alterações metabólicas e agravos, como gordura no fígado, diabetes mellitus, aumento de peso e composição corporal, pressão arterial aumentada e hiperuricemia. A fim de visualizar os efeitos da ingestão excessiva de sacarose sob o rendimento de indivíduos fisicamente ativos (18 e 32 anos), realizou-se estudo com 17 voluntários, suplementados com as seguintes bebidas: a) placebo (PLA), de suco da marca Clight® (composição igual a 0g de carboidratos) e sem adição de açúcar; b) mesma bebida acrescida de 300g de sacarose (SA). Ambas foram completadas com água para 1.5 litros. Os indivíduos foram alocados aleatoriamente em uma das condições por 15 dias, seguindo de intervalo (7 dias), então foram realocados à condição contrária. Realizaram-se avaliações após cada condição, submetendo-os ao teste progressivo em esteira utilizando o protocolo de Bruce. Determinaram-se a Capacidade Aeróbia Máxima por Estágio (VO2 máx / estágio) e o Tempo Total de Fadiga (TTF) através da espirometria de circuito aberto. Na condição SA, houve redução do tempo total limite do exercício (p≤ 0,0001), do VO2 máximo (p=0,0031) e aumento da PSE. A Pressão Arterial Sistólica em pico de esforço (p=0,0143) foi maior após SA. Houve aumento de colesterol total (p=0,046), VLDL (p= 0,0041) e triacilgliceróis (p=0,0059). Logo, o consumo excessivo de sacarose tem efeito negativo sob estes parâmetros e no rendimento físico.
  • No Thumbnail Available
    Item
    Sucrose-sweetened drinks reduce the physical performance and increase the cardiovascular risk in physically active males.
    (2021) Baleeiro, Raianne dos Santos; Guimarães, Aparecida Patricia; Souza, Perciliany Martins de; Andrade, Rafael da Silva; Queiroz, Karina Barbosa de; Coelho, Daniel Barbosa; Oliveira, Emerson Cruz de; Oliveira, Lenice Kappes Becker
    The intake of sugar-sweetened beverages (SSBs) has increased rapidly, but the effects of this habit on health and physical performance are unknown.)is study assessed the effect of excessive SSB intake on biochemical, physical performance, and biochemical and cardiovascular parameters of physically active males. Methods. Seventeen volunteers consumed a placebo drink (Pd; carbohydrate free) and an excessive SSB drink (eSSBd = Pd plus 300 g sucrose). In a blind randomized crossover study, the subjects were assigned to Pd or eSSBd groups for 15 days. After an interval of 7 days, subjects were reassigned to the other condition. Results. After eSSBd intake, there was an increase in weight (69.34±13.71 vs. 70.62 ±14.06), body mass index (24.49±4.01 vs. 24.97±4.13), waist circumference (75.33±11.22 vs. 76.79 ±11.51), VLDL (19.54 ±9.50 vs. 25.52±11.18), triglycerides (78.94±23.79 vs. 114.77±43.65), and peak systolic blood pressure (178.57±26.56 vs. 200.71±24.64). )e cardiorespiratory response to exercise (VO2max) (48.15 ±10.42 vs. 40.98±11.20), peak heart rate (186.64±8.00 vs. 179.64±6.28), total exercise time (15.02 ±1.57 vs. 14.00 ±2.18), and mechanical work (15.83 ±4.53 vs. 13.68 ±5.67) decreased after eSSBd intake (all values expressed in initial mean±DP vs. final).)e rates of perceived exertion were higher (1.300 vs.1.661 slope and −0.7186 vs. −1.118 y-intercept) after eSSBd intake. Conclusion. )e present study shows that 15 days of eSSBd intake may negatively modulate biochemical parameters associated with cardiovascular risk. In addition, this overintake can impair the physical performance and cardiovascular responses to physical exercise.