Changes in Energy Intake and Appetite Following Different Intensities of Aerobic Exercise

Abstract

This research evaluated changes in appetite, energy intake, and body composition following 15 sessions of both moderate-intensity continuous training (MICT) and high-intensity interval training (HIIT) in overweight and sedentary adults (n = 4 female, n = 2 male). All subjects performed both MICT and HIIT. Paired t-tests were used to analyze data between testing sessions. A repeated-measures ANOVA along with a Bonferroni adjustment was used for measures over the study duration. Chronic appetite was unchanged over the study duration, but appetite post-exercise was 5.7% higher in HIIT (p = 0.03) in the first session compared to MICT. Energy intake was reduced within subjects (p = 0.023) over the study. Systolic blood pressure was significantly reduced (p = 0.027) between post-testing 1 and post-testing 2. While this study suggests aerobic exercise has no effect on chronic feelings of appetite, more research is needed as energy intake was reduced.