Korean Journal of Community Nutrition

Hyeon Ju Na

3 Articles

[English]
Criterion Development of 4 Activity Levels for Estimated Energy Requirement Calculation for Primary School Students: Mi Jeong Kim, Hyeon Ju Na, Youngnam Kim; Korean J Community Nutr 2011;16(3):307-314. Published online June 30, 2011; DOI: https://doi.org/10.5720/kjcn.2011.16.3.307

The purpose of this study is finding the easy way of 4 categories activity level confirmation for estimated energy requirement calculation. Total of 386, 5th and 6th grade primary school students participated. The time spent on 7 kinds of activity were collected for 1 day by the internet program developed. Judged by the activity coefficient, sedentary were 6.7% and 5.1%, low active 33.2% and 40.4%, active 43.8%, and45.5%, and very active 16.3% and 9.0% for boy and girl, respectively. The highest and significant correlation coefficient between activity coefficient and time spent on activities shown were 0.339 in commute activity for boys, and 0.466 in leisure for girls. The sensitivity of the sedentary conformation by commute hour for boys was 0.79, and that of very active was 0.56. The sensitivity of the sedentary conformation by leisure hour for girls was 0.67, and that of very active was 0.63. The sensitivity of low active and active by 7 different types of activity was quite low, 0.04~0.37. The exact agreement of activity level conformed by easy way developed was 30.8% and 33.7%, for boys and girls, respectively. More accurate way to identify 4 categories activity level needs to be developed, especially sensitive to conformation of low active and active levels.

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A Study on the Adaptation of Senior Elementary School Students in Multicultural Families to Home and School Life
Woon Seon Jeong, Ju Hee Park
The Korean Journal of Community Living Science.2021; 32(4): 641. CrossRef
Assessment of Physical Activity Pattern, Activity Coefficient, Basal Metabolic Rate and Daily Energy Expenditure in Female University Students
Yoonji Park, Jung Hee Kim
Korean Journal of Community Nutrition.2013; 18(1): 45. CrossRef
A Study on Premenstrual Syndrome (PMS), Nutrient Intake, Psychological Index according to the Obesity Degree of College Women
Se-Na Kang, Jung-Hwa Park, Hye-Jin Hwang
Korean Journal of Community Nutrition.2011; 16(1): 14. CrossRef

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[English]
The Analysis of Activity Energy, Total Energy, and Estimated Energy Expenditures in 5th and 6th Grade Primary School Students: Mi Jeong Kim, Hyeon Ju Na, Youngnam Kim; Korean J Community Nutr 2011;16(2):195-205. Published online April 30, 2011; DOI: https://doi.org/10.5720/kjcn.2011.16.2.195

Abstract PDF PubReader

This study was conducted to investigate the time spent, activity coefficient and energy expenditure on 7 different types of activity. Total of 386 5th and 6th grade primary school boys and girls in Seoul participated in this study. The participants spent 8 hrs for rest, 4 hrs for out of school study, 3 hrs for leisure, 1 hr 45 mins. for hygiene, 1 hr for commute, and 15 mins. for house choir activity in the day of 6 class hours. The average activity coefficient of 1 day for boys and girls were 1.69 and 1.64, respectively. The TEEs were 2,382 kcal and 2,050 kcal for boys and girls, respectively. The energy cost for study related activity (in school and study activities) was 40% of the TEE, and for rest 20%, for commute 9%, and for hygiene 10% of the TEE. The energy cost for house choir was only about 2% of TEE. The 91.2% participant's EER was higher than the EER shown in the table of 2010 DRI for Koreans. When the participant's EER was compared with the energy allowance calculated by the method in 2000 RDA for Korean, 81.6% was in the range of +/- 5%, and the correlation coefficients between the 2 values were 0.981 for boys and 0.978 for girls, which means high agreements.

Citations

Citations to this article as recorded by

Energy expenditure measurement of various physical activity and correlation analysis of body weight and energy expenditure in elementary school children
Jae-Hee Kim, Hee-Ryoung Son, Jung-Sook Choi, Eun-Kyung Kim
Journal of Nutrition and Health.2015; 48(2): 180. CrossRef
Physical activity level, total daily energy expenditure, and estimated energy expenditure in normal weight and overweight or obese children and adolescents
Myung Hee Kim, Eun Kyung Kim
Korean Journal of Nutrition.2012; 45(6): 511. CrossRef
Criterion Development of 4 Activity Levels for Estimated Energy Requirement Calculation for Primary School Students
Mi-Jeong Kim, Hyeon-Ju Na, Youngnam Kim
Korean Journal of Community Nutrition.2011; 16(3): 307. CrossRef

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[English]
The Estimation of the Daily Energy Expenditure of Korean Adolescents: Youngnam Kim, Hyeon Ju Na; Korean J Community Nutr 2003;8(3):270-279. Published online June 30, 2003

Abstract PDF: Middle and high school students in Korea spend a lot of time at school. In other words, many Korean teenagers spend most of their time studying, and have little time for other activities, such as physical workouts. Fewer physical activities, and consumption of many snacks, etc. may lead to overweight or obesity in some teenagers. This study was conducted to find out the activity levels of teenagers' in order to calculate their daily energy expenditures. A total of 1,192 students (461 middle school students and 731 high school students) who lives in either a city or a country area were recruited for this study. One-day Activity Diaries were collected using questionnaires and analyzed by means of SPSS/win. The participating students spent about 7 hours 24 minutes resting including sleeping; 6 hours 28 minutes studying, 4 hours 4 minutes in leisure activities, 1 hour 32 minutes in personal hygiene activities such as washing, dressing and undressing, etc., 50 minutes on transportation : and 23 minutes on household chores such as cleaning, doing the laundry, etc. The average activity factor was 1.49. That of middle school female students was the lowest at 1.47, followed by middle school male students at 1.48, high school female students at 1.49, and high school male students at 1.51. The daily energy expenditure of middle and high school male students was 2,289 kcal and 2,600 kcal, respectively. That of female students was 1,959 kcal and 2,067 kcal, respectively.

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