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KMID : 0664320110170040378
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Journal of the Korean Dietetic Association
2011 Volume.17 No. 4 p.378 ~ p.386
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Difference in Volume Perception of Cooked White Rice according to Size and Color of Rice Bowl in Normal and Obese Women
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Hong Yang-Hee
Kim Dong-Geon
Hurh Jin-Sun
Lee Myung-Ok
Kim Yoon-Sook
Chang Un-Jae
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Abstract
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To examine the effect of obesity on volume perception according to size and color of rice bowl, we divided female college students into a normal weight group (＜30% fat mass, n=100) and obese group (≥30% fat mass, n=83) and then measured perceived volume of rice bowls of various sizes (general size; 350 ml vs. small size; 188 ml) and color (yellow, white, blue, and black) containing the same amount of cooked white rice (210 g). Normal weight group perceived that the general rice bowl contained significantly more cooked white rice compared to the small rice bowl. In contrast, the obese group perceived that the general rice bowl contained significantly less cooked white rice than the small rice bowl. The estimated variance in perceived volume of both bowls was significantly bigger in the obese group compared to the normal group. There were no differences in perceived volume among any of the subjects (both normal and obese groups) according to rice bowl color. However, the estimated variance in perceived volume in the obese group was significantly larger than that in the normal group for all of the rice bowls. In conclusion, rice bowl size and color might affect volume perception, and volume perception in obese people may be different from that of normal weight people.
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KEYWORD
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obese, perceived volume, rice bowl size, bowl color, cooked white rice
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