Article ; Online: Lack of validity of free-living physical activity energy expenditure estimated from ActiGraph equations in severely obese women: A doubly labelled water study.
2022 Volume 40, Issue 14, Page(s) 1552–1557
Abstract: The current study aimed to investigate the validity of three ActiGraph predictive equations that are available to estimate free-living physical activity energy expenditure (PAEE) in women with severe obesity. The study included 20 women with class III ... ...
| Abstract | The current study aimed to investigate the validity of three ActiGraph predictive equations that are available to estimate free-living physical activity energy expenditure (PAEE) in women with severe obesity. The study included 20 women with class III obesity (age: 22-38 years). During 14 days of free-living conditions, total energy expenditure was measured using the doubly labelled water method; in addition, participants wore a triaxial accelerometer (model GT3X+) on the hip. The resting metabolic rate was measured by indirect calorimetry. At group level, the Freedson VM3 Combination was found to be more precise (bias = -61 kcal/day) than the Williams Work-Energy (bias = -283 kcal/day) and the Freedson Combination equations (bias = -186 kcal/day) for estimating PAEE. However, the three predictive equations had a wider limit of agreement (Williams Work-Energy [258, -824 kcal/day], Freedson Combination equations [324, -697 kcal/day] and Freedson VM3 Combination [424, -546 kcal/day]), indicating great uncertainty of the estimate. In conclusion, a wide variation was observed in the performance of different ActiGraph equations in estimating free-living PAEE among women with class III obesity. Therefore, our data do not support the use of these equations, and more studies are needed to improve predictive performance in free-living conditions. |
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| MeSH term(s) | Adult ; Calorimetry, Indirect ; Energy Metabolism ; Exercise ; Female ; Humans ; Obesity ; Water ; Young Adult |
| Chemical Substances | Water (059QF0KO0R) |
| Language | English |
| Publishing date | 2022-06-20 |
| Publishing country | England |
| Document type | Journal Article |
| ZDB-ID | 995528-8 |
| ISSN | 1466-447X ; 0264-0414 |
| ISSN (online) | 1466-447X |
| ISSN | 0264-0414 |
| DOI | 10.1080/02640414.2022.2091346 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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