DEXA法에 의한 大學一部 男子 柔道選手들의 體構成에 關한 硏究

A Study on the Body Composition in Korean Judoists by Dual Energy X-ray Absorptiometry

&nbsp;&nbsp;This study focused on the body composition of Korean Judoists in Dual X-ray Absorptiometry. The principal subjects of this study were 8 National Judoists who participated in the process of Dual Energy X-ray Absorptiometry at K. University Hospital for one year from March 1, 1993 to September 30, 1993.<BR>&nbsp;&nbsp;One the basis of the these measurements, the author calculated physical indices and total fat percent. On the results of bone densitometry, the author analyzed body fat weight, body composition between left and right sides, body composition according to body position, bone mineral density and total bone calcium and discremed the difference between the fatness which was calculated indirectly and which gained from the bone densitometry.<BR>&nbsp;&nbsp;1. General Characteristics<BR>&nbsp;&nbsp;The mean age of the subjects was 18.63±1.06 year.<BR>&nbsp;&nbsp;2. Physical Measurement<BR>&nbsp;&nbsp;The mean physical growth and development of the subjects were superior to standard value of the average Koreans<BR>&nbsp;&nbsp;3. Body Fat by physical Measument<BR>&nbsp;&nbsp;Body surface was 1.7615±0.0365㎡, body volume was 63.l4±2.19 l body density was 1.0592±0.0025 l /kg, body fat was l5.02±1.18㎏, and body fat percent was 17.8940±0.865%.<BR>&nbsp;&nbsp;4. Body Fat by Bone Densitometry<BR>&nbsp;&nbsp;Total body fat percent was 12.13±3.08% and according to body position that of upper limb was 11.39±3.44%, that of lower limb was 13.26±4.15% and that of trunk was 11.02±3.08%.<BR>&nbsp;&nbsp;There was significant difference between the amounts of body fat from the methods used in this study; that from physical measurements and from bone densitometry and bone densitometry method could be said most disirable.<BR>&nbsp;&nbsp;5. Body Composition According to Body Position<BR>&nbsp;&nbsp;Trunk was highest at 44.36±3.68%, lower limb was 35.87±1.34%, upper limb was 11.78±0.65% and head was 8.01±3.11% in order.<BR>&nbsp;&nbsp;6. Bone Mineral Content, Total Bone Calcium(%) and Bone Density<BR>&nbsp;&nbsp;In bone mineral amount and percent by body position, that of uper limb was 443.25±38.75g(5.05 ±0.29%), that of lower limb was 1168.50±114.96g(5.05±0.37%), that of trunk was 1238.88±65.09g(4.37±0.44%) and total bone mineral cvontent was 3377.13±170.48g(5.25±0.18%). Total bone calcium was 1283.38±64.76g(1.918±0.065%).<BR>&nbsp;&nbsp;Bone density was 1.29±0.05g/㎠.