Table 5 Comparison of the results of FFM_{DXA and} FFM_BIA for different %BF subgroups^a

FFM_DXA (kg)

41.8 ± 3.8

41.8 ± 5.2

38.4 ± 4.7

40.9 ± 6.9

40.3 ± 5.6

(35, 48)

(29, 52)

(29, 51)

(30, 58)

(29, 58)

FFM_BIA (kg)

39.2 ± 3.6

40.3 ± 4.7

38.9 ± 4.4

42.9 ± 6.7

40.3 ± 5.2

(32, 45)

(29, 51)

(28, 51)

(31, 60)

(28, 59)

Bias ± SD^b (kg)

−2.6 ± 1.7

−1.5 ± 2.8

0.5 ± 2.7

2.0 ± 2.9

0.0 ± 3.0

r^,c

0.90

0.91

0.89

0.94

0.87

P ^,d

0.04^*

0.06

0.43

0.11

0.92

Slope^,e

0.86

0.83

0.79

0.89

0.79

Intercept^,e

3.17

5.34

9.77

6.70

8.41

Male: BF%_DXA

<10 % (n = 46)

10 % - 20 % (n = 96)

20 % - 30 % (n = 104)

>30 % (n = 51)

Total (n = 297)

FFM_DXA(kg)

60.9 ± 5.2

58.6 ± 7.0

58.2 ± 7.9

57.9 ± 7.7

50.1 ± 11.4

(47, 71)

(33, 76)

(46, 86)

(46, 77)

(33, 86)

FFM_BIA(kg)

58.6 ± 3.8

58.1 ± 5.3

58.6 ± 6.7

60.0 ± 7.4

50.0 ± 10.9

(52, 67)

(39, 74)

(48, 79)

(47, 79)

(40, 79.2)

Bias ± SD^b(kg)

−2.3 ± 2.5

−0.5 ± 3.2

0.4 ± 3.1

2.1 ± 3.2

0.0 ± 3.2

r^,c

0.89

0.90

0.93

0.91

0.89

P ^,d

0.02^*

0.59

0.68

0.16

0.97

Slope^e

0.65

0.68

0.79

0.87

0.70

Intercept^e

19.13

18.52

12.71

9.60

17.41