Table 4.

Subject body composition results

Women Men Total
TBK, mmol
 Measured2,273 ± 327 4,315 ± 3734-150 3,530 ± 1,089
 Calculated 2,495 ± 3154,280 ± 3964-150 3,594 ± 971
BCM, kg
 Measured 18.5 ± 2.7 35.1 ± 3.04-150 28.7 ± 8.9
 Calculated 20.3 ± 2.634.8 ± 3.24-150 29.2 ± 7.9
FFM, kg
 Measured 40.4 ± 4.6 66.2 ± 8.04-150 56.7 ± 14.7
 Calculated 40.4 ± 4.867.7 ± 6.24-150 57.2 ± 14.8
Organ/tissue wt, kg
 Brain 1.47 ± 0.14 1.65 ± 0.15 1.58 ± 0.17
 Liver 1.33 ± 0.261.93 ± 0.364-151 1.70 ± 0.44
 Heart0.12 ± 0.04 0.21 ± 0.054-151 0.17 ± 0.06
 Kidneys 0.29 ± 0.030.42 ± 0.104-151 0.37 ± 0.10
 Skeletal muscle18.9 ± 3.2 35.7 ± 3.84-150 29.2 ± 9.2
 Adipose tissue 13.9 ± 3.8 13.7 ± 3.813.8 ± 3.7
 Residual 15.5 ± 1.925.0 ± 2.94-151 21.4 ± 5.4
  • Values are means ± SD. TBK, total body potassium; BCM, body cell mass; FFM, fat-free body mass.

  • F4-150 P < 0.001,

  • F4-151 P < 0.01, and

  • P < 0.05 for women vs. men.