Exercise, Appetite and Weight Control: Are There Differences between Men and Women?

Area of Science:

• Exercise physiology
• Nutritional science
• Endocrinology

Background:

• Investigating sex-based differences in exercise's effects on appetite and energy balance is crucial for understanding health implications.
• Previous research predominantly focused on males, limiting insights into potential sex-based variations in appetite regulation.
• Understanding these differences may explain why men sometimes experience greater weight loss from exercise interventions.

Approach:

• This review synthesizes current scientific literature on the acute and chronic effects of exercise on appetite control in both men and women.
• It examines responses in appetite, appetite-regulatory hormones, and energy intake.
• The review critically evaluates existing evidence regarding sex-based differences.

Key Points:

• Appetite, hormonal responses, and energy intake following acute exercise do not significantly differ between sexes.
• There is limited evidence suggesting women may exhibit more pronounced hormonal adjustments to exercise initiation than men.
• Current data does not support sex-based differences in appetite or energy intake during chronic exercise training.

Conclusions:

• Acute exercise elicits similar appetite and energy intake responses in men and women.
• While some hormonal responses to exercise initiation may differ, long-term impacts on appetite regulation remain unclear.
• More rigorous comparative studies are necessary to definitively establish sex-based differences in exercise-induced appetite and energy balance regulation.