Table 1.  Subject characteristics. Values are means (SD).
Age Range, y 
n
Height,
m*
Weight, kg*
BMI,
kg·m-2
Fat,
%* 
FFM,
kg* 
SMM,
kg*
Men
20-39
211
1.70 (.06)
66.8 (8.8)
23.2 (2.9)
19.6 (5.3) 
53.4 (5.4) 
24.2 (3.1)
40-59
347
1.66 (.06)
64.7 (8.0)
23.6 (2.6) 
19.5 (3.8) 
51.9 (5.2) 
21.9 (2.7)
60-95
164
1.61 (.06)
58.7 (8.2) 
22.6 (2.5) 
18.2 (3.5) 
47.9 (5.7) 
18.6 (2.8)
All men
722
1.66 (.07)
63.9 (8.8)
23.3 (2.7) 
19.2 (4.3)
51.4 (5.8) 
21.8 (3.4)
Women
20-39
207
1.58 (.05)
52.0 (6.1) 
20.9 (2.2) 
24.3 (4.0) 
39.2 (3.7) 
14.4 (1.7)
40-59
341
1.53 (.06)
54.4 (7.6) 
23.2 (3.1) 
26.6 (4.6) 
39.7 (4.2) 
13.7 (1.6)
60-95
237
1.49 (.06)
52.5 (8.1)
23.8 (3.3) 
26.1 (5.3) 
38.5 (4.5) 
12.2 (1.8)
All women
785
1.53 (.07)
53.2 (7.5)
22.8 (3.1) 
25.9 (4.7) 
39.2 (4.2) 
13.4 (1.9)
*p < 0.01, men vs. women. BMI indicates body mass index; FFM, fat-free mass; SMM, skeletal muscle mass.