Effect of excercise on glucose variability in healthy subjects : randomized crossover trial

• Autor(a) principal: Figueira, Franciele Ramos
• Data de Publicação: 2019
• Outros Autores: Moraes, Daniel Umpierre de, Bock, Patricia Martins, Waclawovsky, Gustavo, Guerra, Ana Paula, Silveira, Anderson Donelli da, Andrades, Michael Everton, Casali, Karina Rabello, Schaan, Beatriz D'Agord
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/200362
• topic: Glucose; Exercício; Estresse oxidativo; Inflamação; Glucose variability; Oxidative stress; Inflammation; Acute exercise aerobic; Acute exercise eccentric

The aim of this study was to evaluate the acute effect of aerobic (AER) and eccentric (ECC) exercise on glucose variability, correlating it with circulating markers of inflammation and oxidative stress in healthy subjects. Sixteen healthy subjects (32 ± 12 years old) wore a continuous glucose monitoring system for three days. Participants randomly performed single AER and ECC exercise sessions. Glucose variability was evaluated by glucose variance (VAR), glucose coefficient of variation (CV%) and glucose standard deviation (SD). Blood samples were collected to evaluate inflammatory and oxidative stress markers. When compared with the preexercise period of 0-6 h, all the indices of glucose variability presented comparable reductions 12-18 h after both exercises (ΔAER: VAR= 151.5, ΔCV% = 0.55 and ΔSD = 3.1 and ECC: ΔVAR = 221.2 , ΔCV% = 3.7 and ΔSD = 6.5). Increased interleukin-6 (IL-6) levels after AER (68.5%) and ECC (30.8%) (P<0.001) were observed, with no differences between sessions (P = 0.459). Uric acid levels were increased after exercise sessions (3% in AER and 4% in ECC, P = 0.001). In conclusion, both AER and ECC exercise sessions reduced glucose variability in healthy individuals. Inflammatory cytokines, such as IL-6, and stress oxidative markers might play a role in underlying mechanisms modulating the glucose variability responses to exercise (clinicalTrials.gov NCT02262208).