Low-intensity Resistance Exercise Reduces Hyperglycemia And Enhances Glucose Control During The 24 Hours In Type-2 Diabetic Women
Por Loumaíra Carvalho da Cruz (Autor), Alfredo Anderson Teixeira de Araujo (Autor), Karoline Teixeira Passos de Andrade (Autor), Thaise Camila de Oliveira Gomes Rocha (Autor), Guilherme Morais Puga (Autor), Lara Belmudes Bottcher (Autor), Karisia Monteiro Maia (Autor), Sérgio Rodrigues Moreira (Autor).
Em 40º Simpósio Internacional de Ciências do Esporte SIMPOCE
Resumo
INTRODUCTION: Type-2 diabetes (T2D) is a chronic disease characterized by excessive increases in blood glucose concentrations, causing hyperglycemia, especially in postprandial times. Thus, attenuating the postprandial hyperglycemia can be a good strategy to prevent cardiovascular diseases, arteriosclerosis and associated complications. Physical exercise has been defined as an efficient strategy for blood glucose control in patients with T2D, providing blood glucose concentration reductions, as well as decreasing hyperglycemic state time. It is well known that low intensity resistance exercise (RE) was effective in acute glycemic control, but with an analysis being carried out in a short time (2 hours) and within laboratory environment without information of glycemic response during lunch and dinner postprandial moments and sleeping period.
AIM: To compare glucose concentration and hyperglycemic responses of 24h after RE performed in different intensities in patients with T2D.
MATERIALS AND METHODS: Twelve women with T2D (55.2±4.0 years; 70.1±11.4 kg; 155.7±3.3 cm) performed four experimental sessions divided in two blocks separated by seven days and in a randomized order, being: block-A (session-1: Control – CONT40% and session-2: RE 40% of the one repetition maximum test – 1RM) and block-B (session-3: CONT80% and session-4: RE 80%1RM). The RE sessions were performed during 40min with three circuits of seven exercises each, being 40%1RM with 16 and 80%1RM with 8 repetitions each set. Glucose was monitored during 24h of each experimental session by continuous glucose monitoring system.
RESULTS: ANOVA One-way for repeated measures showed that area under the curve (AUC) glucose reduced (p<0.05) after 40%1RM (193,738±33,186 mg.dL-1 x 1,380min-1) when compared to CONT40% (263,937±26,665 mg.dL-1 x 1,380min-1), CONT80% (254,721±35,836 mg.dL-1 x 1,380min-1) and 80%1RM (263,966±62,795 mg.dL-1 x 1,380min-1). Hyperglycemia (>160 mg.dL-1) was less prevalent (p<0.05) during total period after 40%1RM (20.8±21.2%) when compared to CONT40% (77.4±18.3%), CONT80% (69.4±24.6%) and 80%1RM (66.0±33.7%). There was lower hyperglycemic state in 40%1RM (p<0.05) vs. CONT40%, CONT80% and 80%1RM after breakfast (1:25±0:54h vs. 4:00±0:00h, 3:40±0:53h and 3:25±1:09h, respectively), lunch (1:25±2:03h vs. 4:55±0:17h, 4:25±1:26h and 3:40±2:06h, respectively) and dinner (0:15±0:27h vs. 3:15±0:45h, 3:25±0:47h and 2:50±1:31h, respectively). During sleeping period, there was lower hyperglycemic state (p<0.05) in 40%1RM (0:20±0:39h) vs. 80%1RM (4:05±3:08h).
CONCLUSION: A single low intensity RE (40%1RM) decreases hyperglycemic prevalence during 24h and ameliorates glucose control in post-meals and sleeping periods in T2D women.
