青少年身體組成之不同身體組成估算方式驗證與分析

The correlation of % fat and Masked Obesity Index in Taiwan and South Korea’s Teenager

本研究以實證性研究，實際測得之不同國別（臺灣與韓國）之青少年的身體組成資料評估，比較體脂肪百分比（%fat）、身體質量指數（BMI）與隱性脂肪（MOI）等估算體脂肪之差異比較。研究對象共393名（臺灣203名，韓國190名）13至15歲的在學青少年國中生為本研究之對象。身體型態之測量為以InBody 230身體組成測定儀進行量測以取得體脂肪百分比%fat資料。以描述性統計、獨立樣本T考驗和單因子變異數分析比較兩地區之男女差異與相關分析。結果：兩國國中女生之體脂肪百分比有顯著差異（t=-2.147,p=.033<.05），臺灣國中女學生之體脂肪百分比（27.52±7.19）顯著低於同年齡之韓國國中女學生（29.54±6.80）。於不同測量體組成指數之相關比較MOI與％fat其所有的比較組別其相關值R2皆達0.9以上（臺灣男、女生0.987、0.973；韓國男、女生0.976、0.976）；相較於BMI與％fat其R2為較低（臺灣男、女生0.488、0.675；韓國男、女生0.265、0.641）。顯示MOI於評估身體的體脂肪相關較BMI高，這與其他相關的研究發現結果相俯，BMI值可以顯示過重與平均體重的關係，但是不能提供有關體脂肪質量及去脂質量相關訊息。本研究之結果顯示MOI可以有效的預估身體組成，但是需針對受測者的特性進行調整。建議在後續的相關研究可以深入的針對其受測者的活動量與身體組成間的相關同時並針對不同活動形式所造成的身體組成變化的情形進行比較研究。

In this study, empirical study of different national (Taiwan and Korea) teenagers body composition assessment. To comparing the percentage of body fat (% fat), body mass index (BMI) and Masked Obesity Index (MOI). A total of 393 subjects (203 in Taiwan, South Korea, 190) 13 to 15 years of students as subjects. Body type measurement were as InBody 230 body composition analyzer measurements to take %fat. Descriptive statistics, independent samples T-test and ANOVA analysis and comparison of the two regions of the male and female differences and correlation analysis. Results: There are significantly different (t =- 2.147, p =. 033 <.05) in Taiwan and Korea female students, Taiwan’s female students %fat (27.52 ± 7.19) were lower then Korea’s (29.54 ± 6.80). In vary body composition index compare, MOI and %fat in all students the correlation R2 were above 0.9 (Taiwan, male and female 0.987,0.973; Korean boys and girls 0.976,0.976). compared to BMI and % fat R2 (Taiwan boys and girls 0.488,0.675; Korean boys and girls 0.265,0.641). The study showed that the estimated MOI can effectively estimate body composition, but the need for the subject's characteristics to be adjusted. Recommended follow-up research can be in-depth for its subject's activity and the correlation between body composition and for different forms of activities also caused changes in body composition compared to the case study.