The international food unit: a new measurement aid that can improve portion size estimation
| العنوان: | The international food unit: a new measurement aid that can improve portion size estimation |
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| المؤلفون: | Bucher, Tamara, Weltert, M., Rollo, M. E., Smith, S.P., Jia, W., Collins, C.E., Sun, M. |
| المصدر: | International Journal of Behavioral Nutrition and Physical Activity, Vol 14, Iss 1, Pp 1-11 (2017) International Journal of Behavioral Nutrition and Physical Activity, 14 (1) |
| بيانات النشر: | BMC, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Automated food volume recognition, PSEM, Food intake reporting, lcsh:Public aspects of medicine, Food shape, Portion size measurement aid, lcsh:RA1-1270, lcsh:Nutritional diseases. Deficiency diseases, Dietary assessment, PSMA, Standardisation, Volume and capacity training, lcsh:RC620-627 |
| الوصف: | Background Portion size education tools, aids and interventions can be effective in helping prevent weight gain. However consumers have difficulties in estimating food portion sizes and are confused by inconsistencies in measurement units and terminologies currently used. Visual cues are an important mediator of portion size estimation, but standardized measurement units are required. In the current study, we present a new food volume estimation tool and test the ability of young adults to accurately quantify food volumes. The International Food Unit™ (IFU™) is a 4x4x4 cm cube (64cm3), subdivided into eight 2 cm sub-cubes for estimating smaller food volumes. Compared with currently used measures such as cups and spoons, the IFU™ standardizes estimation of food volumes with metric measures. The IFU™ design is based on binary dimensional increments and the cubic shape facilitates portion size education and training, memory and recall, and computer processing which is binary in nature. Methods The performance of the IFU™ was tested in a randomized between-subject experiment (n = 128 adults, 66 men) that estimated volumes of 17 foods using four methods; the IFU™ cube, a deformable modelling clay cube, a household measuring cup or no aid (weight estimation). Estimation errors were compared between groups using Kruskall-Wallis tests and post-hoc comparisons. Results Estimation errors differed significantly between groups (H(3) = 28.48, p < .001). The volume estimations were most accurate in the group using the IFU™ cube (Mdn = 18.9%, IQR = 50.2) and least accurate using the measuring cup (Mdn = 87.7%, IQR = 56.1). The modelling clay cube led to a median error of 44.8% (IQR = 41.9). Compared with the measuring cup, the estimation errors using the IFU™ were significantly smaller for 12 food portions and similar for 5 food portions. Weight estimation was associated with a median error of 23.5% (IQR = 79.8). Conclusions The IFU™ improves volume estimation accuracy compared to other methods. The cubic shape was perceived as favourable, with subdivision and multiplication facilitating volume estimation. Further studies should investigate whether the IFU™ can facilitate portion size training and whether portion size education using the IFU™ is effective and sustainable without the aid. A 3-dimensional IFU™ could serve as a reference object for estimating food volume. International Journal of Behavioral Nutrition and Physical Activity, 14 (1) ISSN:1479-5868 |
| وصف الملف: | application/application/pdf |
| اللغة: | English |
| تدمد: | 1479-5868 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d78fae1818c82ed7be426645fb2fed03 http://link.springer.com/article/10.1186/s12966-017-0583-y |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....d78fae1818c82ed7be426645fb2fed03 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 14795868 |
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