Introduction
The glycaemic index (GI) is an indicator of the glycaemic response after the ingestion of carbohydrate-containing foods.Regarding exercise manipulation to maximise the benefits of low GI diets on substrate oxidation during subsequent exercise, a large and consistent body of evidence, but not all,The acute effects of pre-exercise GI meal(s) on subjective appetiteTherefore, the present study aimed to investigate the effects of pre-exercise meals with high and low GI values on substrate oxidation and non-homeostatic appetite in middle-aged Japanese women. We hypothesised that fat oxidation during exercise would increase and the preference for high fat foods would be suppressed following the consumption of a low GI meal compared to a high GI meal (i.e. before exercise).