The effects of an 8-week supervised exercise program on appetite and appetite-regulating gut hormones in overweight and obese adults
Year: 2014
Type: dissertation
Study designs: Randomized Controlled Trial, Clinical Trial
Abstract: Aim To determine the effects of 8-week supervised and structured exercise training programs – of different modes, intensities and volumes – on subjective appetite, total ghrelin, peptide tyrosine tyrosine (PYY) and anthropometric measurements in overweight and obese adults. Methods A longitudinal randomised controlled pilot trial was conducted at the University of Sydney over 15 months period. Twenty-eight eligible overweight and obese adults were randomly allocated to one of 4 intervention groups or a control group: High-intensity/low energy expenditure aerobic exercise training (HI:LO) (n=7), (LO:HI) (n=8), (LO:LO) (n=4), Progressive resistance training (PRT) (n=4), and control group (n=5). Subjective appetite, the plasma concentrations of total ghrelin and (PYY) gut hormones were assessed at baseline and after intervention. Anthropometric measurements were similarly recorded. Results None of the exercise interventions had any effect on BMI, but HI:LO and LO:HI resulted in a statistically significant reductions in waist circumference. There were no statistically significant differences in the appetite responses, plasma ghrelin and PYY concentrations among the studied groups, either pre- or post-intervention. Conclusions Eight weeks of different intensities and volumes of regular aerobic and (PRT) exercise did not significantly influence subjective appetite or the plasma levels of total ghrelin and PYY in overweight and obese adults.
Author: Ahmad H. Alzahrani
Language: English
Subfield: Endocrine and Autonomic Systems
Field: Neuroscience
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W162117450