Nutr Res Pract.  2010 Oct;4(5):414-420.

Effects of caloric restriction with varying energy density and aerobic exercise on weight change and satiety in young female adults

• Song SW
• Bae YJ
• Lee DT

Abstract

This study examines the combined effects of caloric restriction on body composition, blood lipid, and satiety in slightly overweight women by varying food density and aerobic exercise. Twenty-three women were randomly assigned to one of two groups for a four-week weight management program: the high-energy density diet plus exercise (HDE: n = 12, 22 +/- 2 yrs, 65 +/- 7 kg, 164 +/- 5 cm, 35 +/- 4 % fat) and low-energy density diet plus exercise (LDE: n = 11, 22 +/- 1 yrs, 67 +/- 7 kg, 161 +/- 2 cm, 35 +/- 4 % fat) groups. Subjects maintained a low-calorie diet (1,500 kcal/day) during the program. Isocaloric (483 +/- 26 for HDE, 487 +/- 27 kcal for LDE) but different weight (365 +/- 68 for HDE, 814 +/- 202 g for LDE) of lunch was provided. After lunch, they biked at 60% of maximum capacity for 40 minutes, five times per week. The hunger level was scaled (1: extremely hungry; 9: extremely full) at 17:30 each day. Before and after the program, the subjects' physical characteristics were measured, and fasting blood samples were drawn. The daily energy intake was 1,551 +/- 259 for HDE and 1,404 +/- 150 kcal for LDE (P > 0.05). After four weeks, the subjects' weights and % fat decreased for both LDE (-1.9 kg and -1.5%, P < 0.05) and HDE (-1.6 kg and -1.4%, respectively, P < 0.05). The hunger level was significantly higher for HDE (2.46 +/- 0.28) than for LDE (3.10 +/- 0.26) (P < 0.05). The results suggest that a low-energy density diet is more likely to be tolerated than a high-energy density diet for a weight management program combining a low-calorie diet and exercise, mainly because of a reduced hunger sensation.

Keyword

Low calorie diet; weight management; energy density; satiety

MeSH Terms

Adult
Body Composition
Caloric Restriction
Diet
Energy Intake
Exercise
Fasting
Female
Humans
Hunger
Lunch
Overweight
Sensation
Weights and Measures

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