Abstract
SIT, overweight/ obesity, 75‐gram glucose, ±
There is evidence supporting that acute sprint interval training (SIT) might improve metabolic responses to postprandial glucose, but results are inconclusive. The aim of the present study was to explore the effects of acute SIT on metabolic response and substrate utilization in individuals with overweight/obesity after an oral 75‐gram glucose challenge. Thirty‐three participants with overweight/ obesity (32.7 ± 8.3 years, 24 male, 9 female) participated in the study and a crossover design was followed. After the 75‐gram glucose load, participants were randomly allocated to two groups: no exercise (resting) or SIT protocol. Metabolic data including respiratory quotient (RQ) and substrate utilization rates (fats and carbohydrates) were collected using the COSMED Q‐NRG + ® calorimeter. The RQ was significantly lower in the acute SIT group (0.76 [0.01]; There is evidence supporting that acute sprint interval training (SIT) might improve metabolic responses to postprandial glucose, but results are inconclusive. The present investigation indicates that acute SIT might have a positive effect on metabolic response to postprandial glucose and, therefore, it could be recommended for improving metabolism response in adults with overweight/obesity. The mechanism(s) involved in substrate utilization with SIT are not fully elucidated and the topic warrants further investigation.
