체지방 평가를 위한 초음파와 피부두겹법 측정의 비교 = Comparison of Ultrasound and Skinfold Measurements of Subcutaneous Fat Thickness in the Evaluation of Body Fat Assessment

다국어 초록 (Multilingual Abstract)

This study is comparison of ultrasound and skinfold measurements of subcutaneous fat thickness in the evaluation of body fat assessment. The participants of the study were adult males and females aged 20 years and over who had received a sufficient explanation of the preliminary research and agreed to participate. The total number of subjects was 29, consisting of 15 males and 14 females. In order to investigate the reliability of the measurement equipment, three sites of subcutaneous fat (male: chest, waist, thigh; female: tricep, hip, thigh) were measured using an ultrasound (BodyMetrix™ BX2000) and skinfold. Measurements were repeated twice. Data processing used correlation analysis (Pearson's r), dependent sample t-tests, and Bland & Altman plots. Correlation analysis of the study results showed that both men and women showed high correlations in the 3 sites measured by the ultrasound and skinfold, and the Bland & Altman plot also showed a stable mean difference and 95% LOA. Therefore, both measurement methods were found to be highly reliable for repeated measurements. These results indicate that both ultrasound and skinfold are reliable and valid methods for body fat assessment in adults.

국문 초록 (Abstract)

본 연구는 체지방 평가를 위한 초음파와 피부두겹법의 반복측정에 따른 신뢰도를 비교 분석하는데 목적이 있다. 연구대상은 참여에 동의한 20세 이상 성인 남, 여 총 29명이었으며, 남자 15명, 여자 14명으로 구성되었다. 측정기기의 신뢰도를 알아보기 위해 초음파 측정기(BodyMetrix™ BX2000)와 피부두겹법으로 피하지방 3부위(남자: 가슴, 복부, 대퇴, 여자: 상완삼두, 측복부, 대퇴)를 2번 반복 측정하였다. 자료처리는 상관분석(Pearson's r), 종속표본 t-test 그리고 Bland & Altman plot을 이용하였다. 연구결과 남자, 여자 모두 초음파측정기(남자: r=.901 이상, 여자 r=.921 이상)와 피부두겹법(남자: r=.978 이상, r=.988 이상)으로 측정한 3부위에서 높은 상관이 나타났고, Bland & Altman plot에서도 안정적인 차이점수의 평균과 95% LOA를 보여주었다. 따라서 두 가지 측정방법 모두 반복측정에 대한 신뢰도가 높은 것을 알 수 있었다. 결과적으로, 초음파와 피부두겹법은 성인의 체지방 평가를 위해 신뢰할 수 있고 유효한 방법으로 판단된다.

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