자연과학편 : 사진체적추정방법을 이용한 중년여성의 체지방 추정식 개발 = A Regression Equation to Predict Body Fat Using Digital Image Plethysmography in Middle Aged Women

국문 초록 (Abstract)

이 연구는 사진체적추정(Digital Image Plethysmography) 방법을 이용하여 산출한 정면과 측면 면적으로 전신부피(TBV)를 추정하여 체지방을 간편하게 추정함으로써 현장 적용성이 높은 체지방 추정식을 개발하는 것이 목적이다. 이 목적을 위하여 신체적으로 특별한 질병이 없고, 규칙적인 운동에 참여하지 않는 40대 성인 여성 45명을 임의로 선정하였다. 중년 여성의 체지방 추정을 위해 ADP 방법으로 측정한 전신부피를 종속변수로, 사진체적추정 방법을 이용하여 산출된 정면과 측면의 면적을 독립변수로 하여 동시투입법을 실시한 결과, 독립변수들 사이에 다중공선성이 존재하는 것으로 판단되어 최적변인 선정에 단계선택방법을 사용하여 다중회귀분석을 실시하였다. 교차타당도 검증을 위해 독립적인 표본 15명을 회귀식에 대입한 후 체지방률의 급내상관계수를 산출한 결과, r=.932로 나타나 사진체적추정 방법은 중년 여성의 체지방률을 측정하는 데 타당한 방법인 것으로 나타났다. 따라서 사진체적추정 방법은 측정에 따른 소요 시간과 비용에 있어서 경제적인 것으로 판단된다.

다국어 초록 (Multilingual Abstract)

This research aims at developing the approximate calculation of body fat with higher degree of applicability to the field by estimating body fat through the calculation of TBV (Total Body Volume) through the estimated size of the front and the side in the method of digital image plethysmography. To accomplish this goal, 45 adult females in their forties without any particular physical diseases and not participating in regular exercises were selected at random. As the result of the enter method with TBV measured through ADP as the dependent variable and the sizes of the front and the side calculated by the digital image plethysmography method as the independent variable in order to draw the regression equation to calculate female adults` body fat, multicollinearity was concluded to exist among the independent variables, and the regression equation to estimate TBV of female adults (n=30), which was drawn after a multiple regression analysis by using the stepwise method to select the optimal variable. When 15 independent samples were applied to the regression equation to verify the cross validity and when ICCs of % body fat of the digital image plethysmography method were calculated, was turned out to be r=.932, so the method of digital image plethysmography was proved to be valid to measure female adults` % body fat. Therefore, the digital image plethysmography method is effective in terms of time and cost needed for the measurement.

참고문헌 (Reference)

1 Fields, D. A, "Validation of the BOD POD with hydrostatic weighing: Influence of body clothing" 24 (24): 200-205, 2000

2 Haarbo, J, "Validation of body composition by dual energy X-ray absorptiometry (DEXA)" 11 (11): 331-341, 1991

3 Buskirk, E. R, "Underwater weighing and body density: a review of procedures, In Techniques for measuring body composition" National Academy of Science-National Research Council 90-106, 1961

4 Lawrence, C, "Ultrasonic Measurements for Process Control: Theory, Techniques, Applications" 88 (88): 589-, 1990

5 Freedson, P, "Total body volume in females: validation of a theoretical model" 51 : 499-505, 1979

6 Siri, W. E, "The gross composition of the body, In Advances in biological and medical physics" Academic Press 239-280, 1956

7 Katch, F. L, "Reliability and validity of a new method for the measurement of total body volume" 60 : 286-291, 1989

8 Segal, K. R, "Lean body mass estimation by bioelectrical impedance analysis: a four- site cross-validation study" 47 : 7-14, 1988

9 Lorenzo, N. D, "Is digital image plethysmographic (DIP) Acquisition a valid new tool for preoperative body composition assessment? A validation by dual-energy X-ray absorptiometry" 16 : 1-7, 2006

10 Mikat, R. P, "Effect of lung-volume correction on total body volume assessment using dual digital photograph anthropometry" 5 (5): 28-31, 2002

11 Mikat, R. P, "Chest, waist, and hip circumference estimations from stereo photographic digital topography" 40 : 58-62, 2000

12 Livingston EH, "Body surface area prediction in normal weight and obese patients" 281 : 586-591, 2001

13 Sardinha L. B, "Body surface area estimation and its impact on predicting appendicular skeletal muscle mass with a mechanistic model based on the reference Man" 40 : S29-S31, 2003

14 Heyward, V. H, "Applied Body Composition Assessment(2nd ed)" Human Kinetics 27-45, 2004

15 Lohman, T. G, "Advance in body composition assessment(Ed)" Human Kinetic Publishers 25-37, 1992

16 Pelizzari, C. A, "Accurate Three-Dimensional Registration of CT, PET, and/or MR Images of the Brain" 13 (13): 20-26, 1989

17 Wang J, "A unified formula for calculating body surface area of humans and animals" 421 : 1074-1079, 2004

18 Moon, J. R, "A simplified method for estimating body volume in men and women using digital image plethysmography(DiP)" 40 (40): S270-S271, 2008