Korean Journal of Community Nutrition

Randomized Controlled Trial

[English]
Weight Control Program through the Fortification of Food Consumption Monitoring on Obese Female College Students: Using Smart-Phone with Real Time Communication Application: Young Suk Kim, Jae Kyung Shin, In Sun Hong, Seon Hee Kim, Un Jae Chang; Korean J Community Nutr 2011;16(6):697-705. Published online December 31, 2011; DOI: https://doi.org/10.5720/kjcn.2011.16.6.697

This study was conducted to investigate the effects of real time communication digital photography method using Kakao Talk application in smart-phone for the fortification of food consumption monitoring and weight reduction. Thirty-four female college students were randomly assigned to the camera-phone (CP) group or smart-phone (SP) group. Each group participated in the weight control program for 8 weeks. The mean energy intake of CP group during program was 1353.5 kcal and the SP group consumed 1289.2 kcal. The total energy intake of both groups was significantly decreased during the program. The CP group lost 1.9 kg of body weight and 1.9% of body fat and the SP group lost 4.3 kg of body weight and 3.0% of body fat. The body weight was significantly decreased in the SP group compared to the CP group. The triglyceride and total cholesterol, and LDL-cholesterol level of SP group were significantly decreased during the program. However, there were no significant changes in CP group during the program. Also there were no significant changes in lipid profile between two groups. In this study, it is considered that real time communication digital photography method using Kakao Talk application in smart-phone might influence weight control through a trained consumption monitoring. Therefore, smart-phone can lead individuals to rely more heavily on easy-to-monitor visual cues.

Citations

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Leveraging Multimodal Supports using Mobile Phones for Obesity Management in Elementary-School Children: Program Providers' Perspective from a Qualitative Study
Mi-Young Park, Jae Eun Shim, Kirang Kim, Ji-Yun Hwang
Korean Journal of Community Nutrition.2017; 22(3): 238. CrossRef
Development of tailored nutrition information messages based on the transtheoretical model for smartphone application of an obesity prevention and management program for elementary-school students
Ji Eun Lee, Da Eun Lee, Kirang Kim, Jae Eun Shim, Eunju Sung, Jae-Heon Kang, Ji-Yun Hwang
Nutrition Research and Practice.2017; 11(3): 247. CrossRef
Effect of Food Consumption Monitoring Using a Smartphone on Weight Changes in Obese Women
Young-Suk Kim, Jeong-Ja On, Yang-Hee Hong, In-Sun Hong, Un-Jae Chang
Journal of the Korean Dietetic Association.2014; 20(2): 123. CrossRef

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Original Article

[English]
A Study on Application of Food Photographs for Estimating Individuals' Dietary Intake: Jong Sook Kwon, Kyungmin Kim, Hye Kyeong Kim; Korean J Community Nutr 2010;15(6):760-775. Published online December 31, 2010

Abstract PDF: This study was performed to investigate the validity of food photographs for estimating individuals' dietary intakes and compare it with other dietary assessment methods. Subjects were 7 professors, 2 researchers, 12 dietitian and 16 graduate students majoring in food and nutrition. Among the subjects, 20 subjects had research experiences in the dietary intake survey more than one year while 17 had not. Each subject estimated 50 food portions displayed in computer monitor by comparing with standard food photographs, which were weighed portions of 28 foods from typical Korean diet. No significant differences between the estimated value and the weighed value of 17 (34%) food portions were shown in research-experienced group and those of 14 (28%) food portions were shown in no-researchexperienced group. 24-hour recall was the most frequently-used method for dietary assessment followed by in the order of food frequency questionnaire, dietary record, diet history and weighing method. After estimating food portions by photographs, 30 subjects (81%) were willing to use the method for dietary assessment because of its convenience and easy communication between researcher and subject. This study suggests that digital photography method would be a useful and convenient new instrument for estimating individuals' dietary intake. However, it is necessary to create standard database for food portions and carry out systematic education for food estimation in order to apply this method in the fields.

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