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Master's Dissertation
DOI
https://doi.org/10.11606/D.39.1994.tde-18122023-132307
Document
Author
Full name
Paulo Rizzo Ramires
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 1994
Supervisor
Committee
Negrão, Carlos Eduardo (President)
Diament, Jayme
Liberman, Bernardo
Title in Portuguese
Treinamento físico sobre o impacto metabólico provocado pela ingestão de glicose pré-exercício, em indivíduos portadores de diabetes mellitus insulino-dependente
Keywords in Portuguese
Diabete melito
Ingestão de glicose
Substratos e hormônios
Treinamento físico
Abstract in Portuguese
O presente estudo teve por objetivo verificar o efeito do treinamento físico (TF) sobre o impacto metabólico da ingestão de glicose (GL) pré-exercício na inter-relação hormônio substrato durante o exercício prolongado. Foram estudados sete indivíduos controle (C) e seis diabéticos (D) nas fases de pré e de p6s-TF. O teste de tolerância ao exercício (TTE) até a exaustão (64 ± 5% do VO2 máx) foi realizado 30 minutos apos a ingestão de placebo e GL. A ingestão de GL pré-exercício aumentou a tolerância ao exercício nas fases de pré e de p6sTF. Nos grupos C e D, o TF não modificou o impacto da ingestão de GL pré-exercício nas concentrações de GL, acido lático, epinefrina (EP), cortisol (CORT), insulina, peptídeo-C, glucagon (GLUC) e hormônio de crescimento (HC), mas antecipou a elevação da concentração de AGL no grupo C. O TF não modificou a maior concentração de GL no grupo D durante todo o período experimental. Em conclusão; 1- A ingestão de GL pré-exercício aumenta a tolerância ao exercício nos grupos C e D, tanto na fase de pré como na fase de pós-TF, 2- No grupo D, o TF não modifica o efeito agudo do exercício, qual seja, de apenas atenuar a hiperglicemia causada pela ingestão de GL pré-exercício, 3- No grupo C, o TF diminui a ação inibitória da ingestão de GL pré-exercício nas concentrações de AGL e 4- O TF não modifica a ação inibitória da ingestão de GL pré-exercício nas concentrações de EP, CORT, GLUC e HC nos grupos C e D
Title in English
Effect of physical training and impact of glucose ingestion 30 minutes before prolonged exercise in insulin-dependent diabetic subjects
Keywords in English
Diabetes mellitus
Glucose intake
Physical Training
Substrates and hormones
Abstract in English
The aim of the present investigation was to verify the effect of exercise training (ET) on the impact of glucose (GL) ingestion before exercise to exhaustion on the substrate hormone interplay in insulin-dependent diabetic subjects. Seven healthy control subjects (C) and six diabetic patients (D) were studied before and after ET. The exercise tolerance test (ETT) until exhaustion (64 ± 5% of V02max) was performed after oral ingestion of GL or placebo solution given 30 minutes prior to exercise. GL ingestion prior to exercise increased exercise tolerance both before and after ET. In C and D, groups ET did not significantly modify the effect of GL ingestion prior to exercise on GL, lactic acid, epinephrine (EP), cortisol (CORT), insulin, C-peptide, glucagon (GLUC), and growth hormone (GH) concentrations, but the exercise-induced enhancement in FFA occured at 60 min. of exercise rather than at exhaustion. ET had no effect on the elevated blood glucose concentration in the D group during all experimental periods. Conclusion: 1- in the C and D groups, glucose ingestion pre-exercise increases exercise tolerance both before and after ET; 2- In the D group, ET did not change the acute effect of exercise, that is, only attenuating hyperglycemia provoked by GL ingestion; 3- In the C group, ET decreases the inhibitory effect of glucose ingestion on FFA concentration, and 4- ET, in the C and D groups, did not change the diminishment of EP, CORT, GLUC, and GH provoked by glucose ingestion
 
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Publishing Date
2023-12-18
 
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