Papers by Prof. Allan Cristian Gonçalves
INTRODUCTION The present work is a continuation of a former one entitled Effect of Physical Exerc... more INTRODUCTION The present work is a continuation of a former one entitled Effect of Physical Exercise on Lipid Metabolism in Rats 1 Submitted to Hypercholesterolemic Diet , that discussed the effect of physical training on the lipid metabolism as well as muscle and oxidative stress in animals submitted to a hypercholesterolemic diet. We now complete the evaluation of the effect of the exercise protocol on lipid metabolism by verifying the effect of training on the HDL/LDL ratio. More information is supplied in order to improve the understanding about the effect of exercise on other parameters, besides those already presented. The characterization of the effect of different protocols of hypercholesterolemia on various parameters, amongst which is protein metabolism, has been constantly present in this type of study in order to verify whether these protocols affect the 3 development of the animals . Another relevant factor is the fact that various studies have demonstrated that high li...
FIEP Bulletin On-line, 2007
The correct characterization of hypercholesterolemic models involves the knowledge of the effect ... more The correct characterization of hypercholesterolemic models involves the knowledge of the effect of diet on parameters the go beyond lipid metabolism and that nevertheless reflect the effect of the hypercholesterolemic diet on the development of the animals. Equally important, the exact notion of the magnitude of the stress provoked by physical training helps the understanding of its effect on the objects of investigation and guide the choice of the better protocol to be utilized in different experiments. In the present study 48 female adult Fisher rats were distributed in 4 groups: Exercise (swimming 30 min/day, 5 days/week) with hypercholesterolemic diet, exercise with control diet, sedentary with hypercholesterolemic diet and sedentary with control diet. After 9 weeks animals were sacrificed. Results show that exercise was efficient in improving the ratio HDL/LDL and there was an effect on total protein values and kidney weight of the animals. There was no alteration in the stru...
International Journal of Performance Analysis in Sport, 2018
Purpose: To analyse if the ability of elite Brazilian football athletes to perform repeated sprin... more Purpose: To analyse if the ability of elite Brazilian football athletes to perform repeated sprints, evaluated in real game situations, correlates with their previously determined VO 2max. Methods: We analysed data from 10 male elite Brazilian football athletes, who had their movements monitored in the field through GPS devices, during 17 matches of official championships. For analysis of athletes' movements in the field, we considered a block of repeated sprints (BRS), activities characterised by at least 3 sprints with velocity ≥20 km/h separated by a maximum of 21 s between each sprint. Results: There was no correlation between the ability to perform BRS in real game situations and the previously determined VO 2max of athletes (r = 0.5828; p = 0.0770). On the other side, there was a positive correlation between the performance of blocks of repeated sprints and the number of actions within the blocks (r = 0.6712; p = 0.0336), and a negative correlation between the performance of blocks of repeated sprints and the recovery time between one block and another (r =-0.9191; p = 0.0002). Conclusions: Repeated-sprint ability determined in the game in elite male Brazilian football players is not correlated with VO 2max .
Motricidade, 2015
O objetivo do presente trabalho foi estudar o efeito do exercício no stress oxidativo de ratos de... more O objetivo do presente trabalho foi estudar o efeito do exercício no stress oxidativo de ratos desnutridos. Trinta e duas ratas Fischer foram igualmente divididas em Controlo Sedentário (CS), Controlo Treinado (CT), Desnutrido Sedentário (DS) e Desnutrido Treinado (DT). O protocolo de treino consistiu na prática de natação ao longo de trinta minutos contínuos diários, cinco dias por semana durante oito semanas. Os animais do grupo DT apresentaram maior aumento de peso e peso final mais elevado do que os animais do grupo DS. Os valores de superóxido dismutase e sulfidrilas totais não mostraram aumento de stress por efeito do treino, da mesma forma que não foram evidenciados danos hepáticos. Os animais CS e DS apresentaram valores de glicose sérica mais elevados do que os animais CT e DT, respetivamente. Já o teste oral de tolerância à glicose confirmou o aumento significativo apenas para o grupo CS em relação ao CT. Conclui-se que o treino físico provocou o aumento de peso e influenciou o peso final dos animais desnutridos sem aumentar o stress oxidativo no soro e sem modificar a ingestão alimentar ou causar danos hepáticos. Palavras-chaves: treino físico, desnutrição, stress oxidativo, ratos, aumento de peso, ingestão alimentar.
FIEP Bulletin On-line, 2006
As chamadas dislipidemias tem sido apontadas como fator causador de doencas cronico-degenerativas... more As chamadas dislipidemias tem sido apontadas como fator causador de doencas cronico-degenerativas como Doenca Arterial Coronariana (DAC) e outras doencas ateroscleroticas. A hipercolesterolemia e um tipo de dislipidemia caracterizada por uma elevada concentracao do LDL colesterol serico causadora de aterogenese e que aumenta o risco de DAC. A atividade fisica, reconhecidamente tem demonstrado atuar beneficamente sobre os fatores que levam as doencas cronico-degenerativas, tendo seu efeito potencializado quando combinada com dieta equilibrada. No presente trabalho 48 ratas Fisher adultas foram distribuidas em quatro grupos: Exercicio (natacao 30 min/dia, 5 dias/semana) com Dieta Hipercolesterolemica (EH), Exercicio com Dieta Controle (EC) Sedentario com Dieta Hipercolesterolemica (SH) e Sedentario com Dieta Controle (SC). Apos 9 semanas os animais foram sacrificados. Os resultados mostram que o exercicio foi eficaz em reduzir o colesterol total, influenciou no peso do musculo soleo ...
Uploads
Papers by Prof. Allan Cristian Gonçalves