Inaccuracies in food and physical activity diaries of obese subjects: complementary evidence from doubly labeled water and co-twin assessments
| Autor: | Maarit Korkeila, Kirsi H. Pietiläinen, Hannele Yki-Järvinen, Jaakko Kaprio, Klaas R. Westerterp, Leonie H. Bogl, Aila Rissanen |
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| Přispěvatelé: | Humane Biologie, RS: NUTRIM - R1 - Metabolic Syndrome |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Male
Gerontology 030309 nutrition & dietetics Endocrinology Diabetes and Metabolism Medicine (miscellaneous) food diaries Body Mass Index DIETARY RESTRAINT physical-activity diaries 0302 clinical medicine Medicine ADULT MONOZYGOTIC TWINS underreporting 2. Zero hunger 0303 health sciences INSULIN-RESISTANCE Nutrition and Dietetics Records Nutritional status Diet Records ADIPOSE-TISSUE twin studies Female Obese subjects Clinical psychology 3-FACTOR EATING QUESTIONNAIRE Adult ACQUIRED OBESITY Food consumption Physical activity Energy metabolism 030209 endocrinology & metabolism Doubly labeled water Motor Activity Truth Disclosure Young Adult 03 medical and health sciences Humans Obesity Motor activity Exercise business.industry Extramural Feeding Behavior Twins Monozygotic BODY-MASS INDEX ENERGY-INTAKE FAT WEIGHT Energy Intake Energy Metabolism business |
| Zdroj: | International Journal of Obesity, 34(3), 437-445. Nature Publishing Group |
| ISSN: | 1476-5497 0307-0565 |
| Popis: | Objective:To study whether eating or physical-activity (PA) habits differ between obese and non-obese monozygotic (MZ) co-twins independent of genetic effects.Methods:Rare MZ pairs discordant for obesity (n=14, body mass index difference 5.2+/-1.8 kg m(-2)) and weight-concordant control pairs (n=10, 1.0+/-0.7 kg m(-2)), identified through a population-based registry of 24-28-year-old twins (n=658 MZ pairs), completed 3-day food and PA diaries and eating behavior questionnaires. Each twin was asked to compare his/her own eating and PA patterns with the co-twin's behavior by structured questionnaires. Accuracy of energy intake was validated by doubly labeled water.Results:Non-obese co-twins consistently reported that their obese twin siblings ate more food overall, consumed less healthy foods and exercised less than the non-obese co-twins do. However, no differences in energy intake (9.6+/-1.0 MJ per day vs 9.8+/-1.1 MJ per day, respectively) in the food diaries or in the mean PA level (1.74+/-0.02 vs 1.79+/-0.04, respectively) in the PA diaries were found between obese and non-obese co-twins. A considerable underreporting of energy intake (3.2+/-1.1 MJ per day, P=0.036) and overreporting of PA (1.8+/-0.8 MJ per day, P=0.049) was observed in the obese, but not in the non-obese co-twins.Conclusions:On the basis of rare MZ twin pairs discordant for obesity, the co-twin assessments confirmed substantial differences in eating and PA behavior between obese and non-obese persons. These may be overlooked in population studies using food and PA diaries because of considerable misreporting by the obese.International Journal of Obesity advance online publication, 15 December 2009; doi:10.1038/ijo.2009.251. |
| Databáze: | OpenAIRE |
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