TY - JOUR
T1 - Determination of body composition - A comparison of dual-energy x-ray absorptiometry and hydrodensitometry
AU - Johansson, Anna G
AU - Forslund, A
AU - Sjodin, Anders Mikael
AU - Mallmin, H.
AU - Hambraeus, L
AU - Ljunghall, S
PY - 1993
Y1 - 1993
N2 - Determination of body composition by dual-energy x-ray absorptiometry (DEXA) was evaluated in healthy men, by using underwater weighing (UWW), skinfold thickness measurement, and bioimpedance analysis. There were strong correlations between percent body fat obtained by all techniques, but DEXA gave significantly lower values (P < 0.001). The influence of differences in bone mineral density (BMD) on fat content determined by UWW was also studied. The individual differences between UWW and DEXA fat estimates were calculated and there was a negative correlation with BMD (r = -0.50, P < 0.05). There was also a negative correlation between body fat by UWW and BMD (r = -0.71, P < 0.01) in the subjects with lowest fat by DEXA, indicating that high or low BMD gave false values by UWW. In conclusion, DEXA and UWW provide complementary information and a combination of these techniques seems to offer new opportunities in evaluations of body composition.
AB - Determination of body composition by dual-energy x-ray absorptiometry (DEXA) was evaluated in healthy men, by using underwater weighing (UWW), skinfold thickness measurement, and bioimpedance analysis. There were strong correlations between percent body fat obtained by all techniques, but DEXA gave significantly lower values (P < 0.001). The influence of differences in bone mineral density (BMD) on fat content determined by UWW was also studied. The individual differences between UWW and DEXA fat estimates were calculated and there was a negative correlation with BMD (r = -0.50, P < 0.05). There was also a negative correlation between body fat by UWW and BMD (r = -0.71, P < 0.01) in the subjects with lowest fat by DEXA, indicating that high or low BMD gave false values by UWW. In conclusion, DEXA and UWW provide complementary information and a combination of these techniques seems to offer new opportunities in evaluations of body composition.
KW - Body composition
KW - body fat
KW - bone mineral density
KW - dual-energy x-ray absorptiometry
KW - underwater weighing
U2 - 10.1093/ajcn/57.3.323
DO - 10.1093/ajcn/57.3.323
M3 - Journal article
C2 - 8438765
AN - SCOPUS:0027402954
SN - 0002-9165
VL - 57
SP - 323
EP - 326
JO - American Journal of Clinical Nutrition
JF - American Journal of Clinical Nutrition
IS - 3
ER -