Associations between Physical Fitness, Bone Mass, and Structure in Older People

Table 2

Partial correlation coefficients between bone mass variables and physical fitness in males, for age, tibia length, and muscle area as possible confounders.

	Balance	LB strength	LB flexibility	Agility	Walking speed	Aerobic capacity
pQCT variables
Tt.BMD 38% (mg/cm^3)	0.047	0.411	0.202	-0.503	-0.414	0.184
Ct.BMD 38% (mg/cm^3)	-0.141	0.295	0.198	-0.346	-0.398	0.003
Ct Th 38% (mm)	0.081	0.395	0.218	-0.503	-0.175	0.261
DXA variables
Neck aBMD (g/cm^2)	-0.184	-0.313	-0.396	0.271	0.393	-0.199
Ward’s triangle aBMD (g/cm^2)	-0.054	-0.189	-0.312	0.261	0.390	-0.096

LB: lower body; pQCT: peripheral quantitative computed tomography; Tt.BMD: total bone mineral density; Ct.BMD: cortical bone mineral density; Ct.Th: cortical thickness; aBMD: areal bone mineral density. Significant correlations are in bold numbers.