Efeitos do exercício agudo em cicloergômetro sobre parâmetros hemodinâmicos em indivíduos diabéticos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

Type 2 diabetes mellitus if develops in result of the lack of insulin or the incapacity of the insulin to exert adequately its effect. For type 2 diabetic the inadequate glicemic control can contribute for the appearance of other illnesses, between them the cardiovascular illnesses and the arterial hypertension. The not pharmacologic treatment more recommended for the control of type 2 diabetes mellitus (DM 2), beyond the diet, is practical the regular of physical activity guided with the objective to reduce the resistance to insulin and to control the arterial pressure. The arterial hypertension is one of the complications associates to DM 2. It has been demonstrated that the acute physical exercise brings benefits for hypertension individuals by means of the postexercise hypotension (HPE). Objectives: To investigate and to compare the effect of 20 min the acute physical exercise accomplished in cycle ergometer the 90 and 110% of the anaerobic threshold (LA) on the hemodynamic responses during the exercise in type 2 diabetic individuals. Methods: Eleven individuals of DM 2, assets (58,5 10,2 years; 31,2 3,8 kg.m2-1; 18,4 3,6 ml. kg -1.min-1; 85,5 36.1 W Ppeak; 50,5 28,7 W LA) accomplished four visits in the period of the morning having been the three last randon order. In 1 visit had measured of the weight, height and accomplishment of incremental test until voluntary exhaustion with initial load of 15 W and increments of 15 W to each 3 min for register of electrocardiographic tracing analyzed by cardiologist and for determination of the LA by visualization of the point of inflection of lactate. In 2, 3 or 4 the feeding was standardized for all the volunteers in these visits where first the individual remained seated in rest during 20 min and had measured PA and FC. Two of these visits had been destined the accomplishment of rectangular exercise with duration of 20 min the 90 and the 110% of the LA being to another destined visit situation has controlled (CON) where the individual remained seated position all during the experiment. To the 20 min of exercise or without exercise (CON) and to each min of the recovery postexercise or after situation CON during 2 hours FC and PA had been measured. Results: It did not have difference statistics in the variable measured during the recovery postexercise between the two intensities, however the biggest falls of PA in relation to the rest had after occurred 110% LA when compared with 90% (-8,1 x -5,8 mmHg for PAS; -2,5 x -1,8 mmHg for PAD and -3,6 x -2,4 mmHg for PAM) while that during the situation it has controlled the PA was raised to +5,2 for PAS; +5,9 for PAD and +5,6 for PAM. Conclusion: The exercise in cycle ergometer with duration of 20 min in the intensities of 90 and 110% LA did not cause significant reduction of the PA during the recovery postexercise in these individuals, however, despite the statistics not showing difference, the exercise 110% LA promoted greater fall that the exercise 90% LA while that in the situation it has controlled all the measures values of PA during the 2 hours had been superior to the values of rest pre-experiment suggesting that these acute exercises in these intensities with 20 min of duration had promoted benefits to the individuals reducing its previous PA and that, with certainty, to be seated (situation without exercise) are not best making for the control of the PA of these individuals.

ASSUNTO(S)

hipertensão exercícis físicos educacao fisica diabetes

ACESSO AO ARTIGO

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