Appetite responses over 24 hours before and after 12-weeks of resistance exercise in older male adults: Secondary data analysis of a randomised trial.
Corbin Griffen, Derek Renshaw, John Hattersley et al.
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In 30 seconds
This secondary pooled analysis of a randomised, double-blind, placebo-controlled trial examined 24-hour appetite responses in 33 older men before and after 12 weeks of resistance exercise (RE) or habitual activity without exercise. Appetite was assessed using visual analogue scales in a metabolic chamber. RE was performed twice weekly at 80% of 1RM. No significant group-by-time differences were found for hunger, satiety, fullness, prospective food consumption, or composite appetite score; 24-hour area-under-the-curve comparisons were also nonsignificant for all measures.
Key findings
- No significant group-by-time differences occurred for any visual analogue scale appetite measure (p ≥ 0.08).
- Twenty-four-hour appetite area-under-the-curve comparisons were nonsignificant for hunger (p = 0.35), satiety (p = 0.58), fullness (p = 0.41), prospective food consumption (p = 0.21), and composite appetite score (p = 0.40).
Why it matters
Resistance exercise is included in recommendations for weight control, but its effects on appetite are not well established. In this study of older men, 12 weeks of exercise did not produce detectable changes in measured appetite. These findings help distinguish the established broader health rationale for resistance exercise from an appetite effect that this analysis did not demonstrate.
What to keep in mind
This was a secondary pooled analysis involving 33 older men, and appetite was assessed over 24 hours at baseline and after 12 weeks; the findings may not generalise to other populations or longer-term appetite responses.