Erratum: Short-term supplementation with a specific combination of dietary polyphenols increases energy expenditure and alters substrate metabolism in overweight subjects

Background: While mental work has been shown to favor overconsumption, the present study compared the effect of a cognitive task alone, followed by acute exercise, or performed on a cycling desk, on short-term food intake and appetite in adults. Methods: A total of 19 normal-weight adults randomly completed: resting session (CON), 30-minute cognitive task (CT), 30-minute cognitive task followed by a 15-minute high-intensity interval exercise bout (CT–EX), and 30-minute cognitive task performed on a cycling desk (CT-CD). Energy expenditure was estimated (heart rate–workload relationship), and energy intake (EI; ad libitum) and appetite (visual analog scales) were assessed. Results: Energy expenditure was higher in CT-EX (P < .001) compared with the other conditions and in CT-CD compared with CON and CT (P < .01). EI was higher in CON (P < .05) and CT-CD compared with CT (P < .01). Relative EI was higher in CON compared with CT (P < .05) and lower in CT-EX compared with CT, CT-CD, and CON (all Ps < .001). Area under the curve desire to eat was higher in CON compared with CT (P < .05) and CT-EX (P < .01). Area under the curve prospective food consumption was higher in CON compared with CT-EX (P < .01). Overall composite appetite score was not different between conditions. Conclusion: While cycling desks are recommended to break up sedentary time, the induced increase in energy expenditure might not be enough to significantly reduce overall short-term relative EI after mental work.

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Thermogenic effect of thyroid hormones: interactions with epinephrine and insulin.

AJP Endocrinology and Metabolism ◽

10.1152/ajpendo.1990.259.3.e305 ◽

1990 ◽

Vol 259 (3) ◽

pp. E305

Author(s):

V Piolino ◽

K J Acheson ◽

M J Müller ◽

N Jeanprêtre ◽

A G Burger ◽

...

Keyword(s):

Energy Expenditure ◽

Thyroid Hormones ◽

Basal Insulin ◽

Plasma Insulin ◽

Resting Energy Expenditure ◽

Fat Free Mass ◽

Short Term ◽

Epinephrine Infusion ◽

Before And After ◽

Basal Plasma

The interactions between thyroid hormones, epinephrine, and insulin in the regulation of energy expenditure were investigated in a group of healthy young men before and after thyroxine (T4) treatment (300 micrograms/day for 14 days) at basal plasma insulin concentrations and during hypoinsulinemia with and without epinephrine infusion (0.05 micrograms.kg fat-free mass-1.min-1). T4 treatment induced moderate hyperthyroidism and increased resting energy expenditure (RMR). The effect was more pronounced during short-term hypoinsulinemia, but hypoinsulinemia by itself did not influence RMR. Epinephrine infusion caused a significant increase in energy expenditure. The effect was most pronounced at hypoinsulinemia and with T4 treatment. Hypoinsulinemia and T4 treatment were not additive in their effects. We conclude that basal insulin concentrations mask some of the thermogenic effects of thyroid hormones and epinephrine. Thus insulin antagonism may suppress some of the thermogenic actions of thyroid hormones and epinephrine.

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Moderate-intensity exercise affects perceived hunger and fullness but not appetite-related hormones in late pregnancy

Applied Physiology Nutrition and Metabolism ◽

10.1139/apnm-2013-0060 ◽

2013 ◽

Vol 38 (11) ◽

pp. 1162-1165 ◽

Cited By ~ 1

Author(s):

Kym J. Guelfi ◽

Rhiannon E. Halse

Keyword(s):

Energy Expenditure ◽

Late Pregnancy ◽

Moderate Intensity ◽

Short Term ◽

Moderate Intensity Exercise ◽

Additional Energy ◽

Additional Energy Expenditure ◽

Caloric Consumption

The effect of exercise on appetite and appetite-related hormones during pregnancy is not known. This study found that 30 min of moderate-intensity stationary cycling transiently attenuated hunger and increased fullness in late gestational women (n = 12). Exercise did not affect perceived appetite or appetite-related hormones in response to subsequent caloric consumption. These observations suggest that appetite responses do not intrinsically compensate for the additional energy expenditure induced by exercise, at least in the short term.

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