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. 2013 Nov 7;99(1):266–275. doi: 10.1210/jc.2013-2837

Table 3.

Regression Analysis of Logged Maximum 1-Legged Hopping Force Versus Bone Outcomesa

Outcome Model β-Coefficient 95% CI P Value
Hip BMD, g/cm2 1 0.21 0.04, 0.38 .02
2 0.03 −0.16, 0.22 .74
Cortical area, mm2 1 0.26 0.12, 0.40 <.01
2 0.17 −0.01, 0.35 .06
Cortical BMD, mg/cm3 1 −0.11 −0.36, 0.14 .38
2 −0.10 −0.42, 0.23 .55
ECPC, mm 1 −0.20 −0.33, −0.07 <.01
2 −0.10 −0.26, 0.07 .24
Total bone area, mm2 1 0.21 0.06, 0.36 .01
2 0.22 0.03, 0.42 .02
Cortical to total bone area ratio, % 1 0.09 −0.15, 0.32 .47
2 −0.07 −0.38, 0.23 .63
Tibial SSI, mm3 1 0.26 0.12, 0.39 <.01
2 0.24 0.07, 0.42 .01
a

All outcome and exposure variables were standardized. Standardized β-coefficients represent SD change in outcome per SD change in exposure (log 1-legged hopping force). Model 1 was adjusted for age, gender, and height. Model 2 was adjusted for age, gender, height, and weight. For hip BMD, n = 182; for all other other outcomes, n = 113.