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Validation of nutrient intake of smartphone application through comparison of photographs before and after meals
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식사 전후의 사진 비교를 통한 스마트폰 앱의 영양소섭취량 타당도 평가

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Type
Academic journal
Author
Hyejin Lee (동덕여자대학교) Eunbin Kim (동덕여자대학교) Su Hyeon Kim (동덕여자대학교) Haeun Lim (동덕여자대학교) Yeong Mi Park (동덕여자대학교) Joon Ho Kang (삼성유전체연구소) Heewon Kim (삼성유전체연구소) Jinho Kim (삼성유전체연구소) Woong-Yang Park (삼성유전체연구소) Seongjin Park (삼성종합기술원) Jinki Kim (삼성종합기술원) Yoon Jung Yang (동덕여자대학교)
Journal
The Korean Nutrition Society Journal of Nutrition and Health Vol.53 No.3 KCI Accredited Journals SCOPUS
Published
2020.6
Pages
319 - 328 (10page)

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Validation of nutrient intake of smartphone application through comparison of photographs before and after meals
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Purpose: This study was conducted to evaluate the validity of the Gene-Health application in terms of estimating energy and macronutrients.
Methods: The subjects were 98 health adults participating in a weight-control intervention study. They recorded their diets in the Gene-Health application, took photographs before and after every meal on the same day, and uploaded them to the Gene-Health application. The amounts of foods and drinks consumed were estimated based on the photographs by trained experts, and the nutrient intakes were calculated using the CAN-Pro 5.0 program, which was named ‘Photo Estimation’. The energy and macronutrients estimated from the Gene-Health application were compared with those from a Photo Estimation. The mean differences in energy and macronutrient intakes between the two methods were compared using paired t-test.
Results: The mean energy intakes of Gene-Health and Photo Estimation were 1,937.0 kcal and 1,928.3 kcal, respectively. There were no significant differences in intakes of energy, carbohydrate, fat, and energy from fat (%) between two methods. The protein intake and energy from protein (%) of the Gene-Health were higher than those from the Photo Estimation. The energy from carbohydrate (%) for the Photo Estimation was higher than that of the Gene-Health. The Pearson correlation coefficients, weighted Kappa coefficients, and adjacent agreements for energy and macronutrient intakes between the two methods ranged from 0.382 to 0.607, 0.588 to 0.649, and 79.6% to 86.7%, respectively.
Conclusion: The Gene-Health application shows acceptable validity as a dietary intake assessment tool for energy and macronutrients. Further studies with female subjects and various age groups will be needed.
#smart phone #mobile application #validation study #nutrition assessment

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References (29)

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박종석 / 2014 / 수면부족 성인의 신체활동량과 비만, 혈중지질과의 관계 분석 / 한국사회체육학회지 (57):879~892 dbpia Ministry of Health and Welfare (KR) / Walking: ≥ 19 years, by sex google schola Ministry of Health and Welfare (KR) / Obesity: ≥ 19 years, by sex google schola Korea Institute for Health and Social Affairs / Chronic disease of the house members google schola 조정민 / 2014 / 한국 청소년의 비만과 식습관 환경요인 변화 추이 분석 / 한국생활환경학회지 21(1):97~107 dbpia

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