BACKGROUND: Energy homeostasis plays a vital role in achieving glycemic control in people with type 2 diabetes mellitus (T2DM). Exercise is known to increase energy expenditure. However, its role in energy intake has not been explored in people with T2DM. Thus, this study aimed at determining the impact of long-term aerobic and combined exercises in modulating hunger, satiety and energy intake in T2DM. METHODS: A randomized controlled trial, with 108 people with T2DM, aged 35 to 60 years were assigned into an aerobic, combined (aerobic and resistance) and a control group. Primary outcomes were subjective levels of hunger and satiety measured by a 100 mm visual analogue scale in relation to a standard breakfast meal (453 kcal) and energy and macronutrient intake determined by a 3-day diet diary at 0, 3 and 6 months. RESULTS: Aerobic and combined groups exhibited reduced hunger and increased satiety at 3 and 6 months (p < 0.05). The combined group demonstrated a profound increase in satiety at 3 and 6 months compared to aerobics (3 months; p = 0.008, 6 months; p = 0.002) and controls (3 months; p = 0.006, 6 months, p = 0.014). Mean daily energy intake was reduced only at 6 months in the aerobic group (p = 0.012), whereas it was reduced in the combined group at 3 and at 6 months compared to controls (3 months: p = 0.026, 6 months: p = 0.022). CONCLUSIONS: Long-term aerobic and combined exercises produced a reduction in hunger, energy intake and increase satiety in people with T2DM. Despite energy expenditure, exercise seems to play a significant role in reducing energy intake as well. Combined exercises show more advantages over aerobic exercise since combined exercises have a greater impact on satiety and energy intake in people with T2DM. TRIAL REGISTRATION NUMBER: SLCTR/2015/029, https://slctr.lk/trials/slctr-2015-029 .

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