Table 3.

Change in body composition as measured by dual-energy X-ray absorptiometry in the Health, Aging, and Body Composition Study

MenWomen
1-yr Change2-yr Change1-yr Change2-yr Change
Means ± SD%Means ± SD%Means ± SD%Means ± SD%
Total body mass, g−139 ± 2,695−0.1−240 ± 3,5113-150 −0.3−217 ± 2,5513-151 −0.3−302 ± 3,4523-151 −0.4
Leg lean soft tissue, g−78 ± 7273-151 −0.4−162 ± 8313-151 −0.8+25 ± 6383-152 +0.3−61 ± 7103-151 3-152 −0.3
Arm lean soft tissue, g−25 ± 3303-150 −0.3−37 ± 3833-151 −0.4−11 ± 246−0.1+19 ± 2693-150 3-152 +0.7
Appendicular lean soft tissue, g−103 ± 9163-151 −0.4−200 ± 1,0803-151 −0.8+14 ± 7623-152 +0.2−41 ± 8463-152 −0.1
Trunk lean soft tissue, g−120 ± 1,0673-151 −0.4−360 ± 1,1703-151 −1.2−49 ± 864−0.1−146 ± 9823-151 3-152 −0.6
Total body fat-free mass, g−246 ± 1,6193-151 −0.4−639 ± 1,9553-151 −1.1−52 ± 1,3483-152 −0.1−262 ± 1,5753-151 3-152 −0.6
Appendicular fat, g+118 ± 7663-151 +1.4+253 ± 9463-151 +2.8−5 ± 9683-152 +0.1+63 ± 1,2143-152 +0.6
Trunk fat, g−34 ± 1,263+0.2+141 ± 1,5593-151 +1.7−162 ± 1,1943-151 3-152 −1.1−98 ± 1,5453-150 3-152 −0.4
Total body fat, g+107 ± 1,936+0.7+399 ± 2,4093-151 +2.0−165 ± 1,9703-151 3-152 −0.5−40 ± 2,5953-152 +0.1
  • F3-150 P < 0.05;

  • F3-151 P < 0.01 (paired t -test).

  • F3-152 P < 0.01, women vs. men.