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Effects of Exercise and Restrained Eating Behavior on Appetite Control

Effects of Exercise and Restrained Eating Behavior on Appetite Control . Vanessa Kinan. Introduction. I ncrease in the consumption of energy-dense food + reduction in physical activity = OBESITY Appetite is regulated by multiple factors 1. the brain and various hormones

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Effects of Exercise and Restrained Eating Behavior on Appetite Control

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  1. Effects of Exercise and Restrained Eating Behavior on Appetite Control Vanessa Kinan

  2. Introduction • Increase in the consumption of energy-dense food + reduction in physical activity = OBESITY Appetite is regulated by multiple factors 1. the brain and various hormones 2. different types of external stimuli • environmental • psychological • social • cultural

  3. Rationale How do increased amounts of physical activity (energy expenditure) and restrained eating (energy intake) effect appetite control thus decreasing an individuals overall energy intake?

  4. Effects of acute exercise on appetite, energy intake, and energy balance • Effects of chronic exercise on energy intake, energy balance, and body weight • Effects of exercise on appetite control • Effects of exercise on appetite-related hormones

  5. Method • 25 unrestrained, normal-weight sedentary individuals (11 male, 14 female) • 6-week moderate- intensity exercise intervention • Baseline and end of the intervention were examined • Gave one group a high energy preload (HEP) and the other group a low energy preload (LEP) • Measured the following • Energy intake (kJ) at a buffet lunch 1 hour after preload • Cumulative energy intake (kJ) over a 24 hour period after preload

  6. Results • Energy intake (kJ) at a buffet lunch 1 hour after preload • Cumulative energy intake (kJ) over a 24 hour period after preload Solid = high energy preload (HEP) Dashed = low energy preload (LEP)

  7. CCK: cholecystokinin; PP: pancreatic polypeptide; GLP-1: glucose like-peptide-1

  8. Conclusions • Exercise is beneficial both short-term and long-term. • Psychologically and physically • “The beneficial impact of exercise on the energy balance equation is […] twofold, not only increasing energy expenditure but also modulating energy input.” • This statement is important in encouraging people to become physically active long-term • Further research can go more in depth and examine if certain types of exercises have more/ less of an effect • Interesting, but still curious about details.

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