Table 2.

Bone properties of the study groups (mean ± SD).

	Overweight (n = 22)	Lean (n = 11)
Lumbar spine
Bone mineral content (gr)	37.27 ± 7.09	35.83 ± 5.22
Bone area (cm2)	40.72 ± 4.53	42.94 ± 3.70
Bone mineral density (Z score)	-0.17 ± 1.11	-0.63 ± 1.27
Femoral neck
Bone mineral content (gr)	3.72 ± 0.71	2.92 ± 0.37*
Bone area (cm2)	4.72 ± 0.71	4.75 ± 0.35
Bone mineral density (Z score)	0.70 ± 0.82	-0.99 ± 0.52**
RAD
SOS (Z score)	0.24 ± 1.29	0.70 ± 1.20
PLX
SOS (Z score)	-0.07 ± 1.65	-0.70 ± 1.36
TIB
SOS (Z score)	-0.45 ± 1.50	0.31 ± 1.48

*P < 0.005, **P < 0.0001, RAD = radius. PLX = phalanx, TIB = tibia, SOS = speed of sound