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Chapter 7
Table 2: Predictive equations for Fat-Free Mass based on children and adolescents and/or adults with normal wei obese an
d obese o
ce (ref) ,
ns based
erg’91 (1 erwater
; BIA-10
erg’90 (2 erwater
; BIA101
7
per (19)
nly.
BI
on
8) 1
1)
utio eq
nly.
BIA
on
) 1
)
tion
Male), a ge y (n),
hy non-
(361M), 5y (n=16
83y (n=6
(130M); 15y:
25y:
(53M),10- s for Fat-
ge
A
Me
obese children, a
28 (17)1 6)
61)
71M 12.8 (1.5) 20F 10.7 (1.0) 41M 21.6 (2.8) 75F 17.6 (3.6)
14y 12.3 (1.2) Free Mass based
ge
an
(y)
(sd)
ht(cm) W
n (sd) M
nts and/or
(14.3) 64
0 (1.2) 47 1 (7.7) 3 2 (6.3) 7 3 (6.7) 5
(10.6) 47
en and ado
eig
ean
adu
.8 (
.2 ( 5.0 3.1 7.9
.0 (
ht(k
(s
lts
17.
11. (6. (5. (9.
11.
g)
d) 2)
8) 5)
9) 5)
3)
FM
5.5
.3 12.
0. 7.0
0.
/o M-
13
1 5.5
1 .34
12.
0. 7.0
0.
- 130
terium dil Predictive
(RJL)
d obese o
)
; BIA:
(202M);
Male), a
les eigh
cen t(k
ts g)
e (ref) ,
00b
ns based
erg’91 (18 rwater
; BIA-10
erg’90 (21 rwater
; BIA101
per (19) erium dilu RJL)
)
; BIA: 00b
94y,
ge y (n),
hy non-o
(361M), 5y (n=16
83y (n=6
(130M); 15y:
25y: 53M),10-
(202M); 94y,
21M
22F
77M
bese
29F 6)36M 611)3F 15M 11F
71M 20F 41M 75F
14y
21M 22F
Me
chil
2
12. 10. 21. 17.
12.
20- an
20- 30-
dre
30- 8 (1
40- 40- 50- 50-
8( 7( 6( 6(
3(
20- 20-
29 (sd)
29 39
n, a
391 7)
49 49 59 59
1.5) 1.0) 2.8) 3.6)
1.2)
29 29
Heig
Mea
dolesce
169.6
159. 144. 183. 168.
153.6 on childr
Heigh
178. Mean
165. 178.
dolesce
166. 169.6
177. 164. 176. 163.
159.0 144.1 183.2 168.3
153.6
178.7 165.4 178.2 166.4 177.3 164.0 176.1 163.7
7 (6.8) (sd)
4 (4.0) 2 (7.1)
nts an
4 (6.0) (14.3
3 (7.3) 0 (6.7) 1 (4.9) 7 (5.3)
(1.2) (7.7) (6.3) (6.7)
(10.6
(6.8) (4.0)
d/
)
7 M
6 79
or a
6 64
8
6 82 67
47 35 73 57
47
75 61
5.2 ean
1.7 .1 (
dul
1.8 .8 (
1.5 3.1
.4 ( .1 (
.2 ( .0 .1 .9
.0 (
.2
.7 .1 ( .8 .5 .1 .4 ( .1 (
(9. (sd
(6. 10.
ts
(6. 17.
(8. (9. 10. 11.
11. (6.5 (5.9 (9.5
11.
(9.8 (6.0 10. (6.4 (8.1 (9.9 10. 11.
8) )
0) 6)
4) 2)
1) 9)
5) 7)
8) ) ) )
3)
)
) 6) ) ) ) 5) 7)
F
T: +
T: 15 –
T: +
T:
and
T:
FF
0.
T: +
T: 15 –
T: +
T:
T: 0.
)
29F 30-39 36M 40-49 13F 40-49 15M 50-59 11F 50-59
(6.0) 61 (7.3) 81 (6.7) 63 (4.9) 82 (5.3) 67
Author; N ( referen A ran system
Equatio healt
Deurenb 827 ref: und 7-1 weighing 16- (RJL)
Deurenb 246 ref: und 10- weighing
(RJL)
16-
Chapter
Houtkoo 95
predictive equations
15y: 0.406*104(H(m)2/Imp 8H(m) + 0.56SEX – 6.48
16y: 0.340 * 104 (H(m)2/I 4H(m) + 0.273W – 0.127A
44
438*104(H(m)2/R) + 0.308 4H(m) – 8.5
61(H2/R) + 0.25W + 1.31 r adults with normal weig
ref: deu n; Table 2: uation
BIA101 obese an
Kyle (23 343
ge
Age(y)
4.104 + 0.518(H2/R)
Author; N (
t(cm)
W
predictive equations
ref: DXA 22-
0Reac + 4.229SEX
referenc ran
Xitron40
system
Equatio healt
Deurenb ref: unde weighing (RJL)
Deurenb ref: unde weighing (RJL)
112
Houtkoo
ref: deut ; BIA101 (
Kyle (23 ref: DXA Xitron40
827 7-1
16-
246 10-
16- 95 (
343 22-
5y: 0.406*104(H(m)2/Imp 8H(m) + 0.56SEX – 6.48
6y: 0.340 * 104 (H(m)2/I
H(m) + 0.273W – 0.127A 44
438*104(H(m)2/R) + 0.308 4H(m) – 8.5
61(H2/R) + 0.25W + 1.31
4.104 + 0.518(H2/R) Reac + 4.229SEX
77M
30-39
(7.1)
79
112
g
m G
+
)
m G
W
+
Chapter 7
Table 2: Predictive equations for Fat-Free Mass based on children and adolescents and/or adults with normal weight, both normal weight and obese and obese only.
Author;
reference (ref) , BIA system
N (Male), age range y (n),
Age(y)
Height(cm)
Weight(kg)
FFM predictive equations
Statistics and cross- validation
Equations based on healthy non-obese children, adolescents and/or adults
Deurenberg’91 (18) ref: underwater weighing; BIA-101 (RJL)
827 (361M), 7-15y (n=166)
28 (17)1
169.6 (14.3)
64.8 (17.2)
T: 15y: 0.406*104(H(m)2/Imp) + 0.360W + 5.58H(m) + 0.56SEX – 6.48
R2=0.97, SEE=1.68
Deurenberg’90 (21) ref: underwater weighing; BIA101 (RJL)
246 (130M); 10-15y: 71M
12.8 (1.5) 10.7 (1.0) 21.6 (2.8) 17.6 (3.6)
159.0 (1.2) 144.1 (7.7) 183.2 (6.3) 168.3 (6.7)
47.2 (11.8) 35.0 (6.5) 73.1 (5.9) 57.9 (9.5)
T: 0.438*104(H(m)2/R) + 0.308W + 1.6SEX + 7.04H(m) – 8.5
r=0.99, SEE=2.39
Houtkooper (19)
ref: deuterium dilution; BIA101 (RJL)
95 (53M),10-14y
12.3 (1.2)
153.6 (10.6)
47.0 (11.3)
T: 0.61(H2/R) + 0.25W + 1.31
R2=0.95, SEE=2.1
Kyle (23)
ref: DXA; BIA: Xitron4000b
343 (202M); 22-94y, 21M
20-29 20-29 30-39 30-39 40-49 40-49 50-59 50-59
178.7 (6.8) 165.4 (4.0) 178.2 (7.1) 166.4 (6.0) 177.3 (7.3) 164.0 (6.7) 176.1 (4.9) 163.7 (5.3)
75.2 (9.8)
T: -4.104 + 0.518(H2/R) + 0.231W + 0.130Reac + 4.229SEX
r=0.986, SEE=1.72
112
16-83y (n=661)
T: 16y: 0.340 * 104 (H(m)2/Imp) + 15.34H(m) + 0.273W – 0.127AGE + 4.56SEX – 12.44
R2=0.93, SEE=2.63
20F 16-25y: 41M 75F
22F 77M 29F 36M 13F 15M 11F
61.7 (6.0) 79.1 (10.6) 61.8 (6.4) 81.5 (8.1) 63.1 (9.9) 82.4 (10.5) 67.1 (11.7)
Mean (sd)
Mean (sd)
Mean (sd)
