Obesity Associated with Low Lean Mass and Low Bone Density Has Higher Impact on General Health in Middle-Aged and Older Adults
Table 3
Linear regression models for the prediction of body composition components on strength changes.
Model 1 β (95% IC)
Model 2 β (95% IC)
Model 3 β (95% IC)
Men
LM (kg)
1.05 (0.71–1.39)
≤0.001
1.45 (1.01–1.89)
≤0.001
1.21 (0.75–1.67)
≤0.001
Total BF (kg)
0.11 (−0.05–0.29)
0.183
−0.26 (−0.46–0.06)
0.009
−0.15 (−0.38–0.07)
0.186
FN BMD (g/cm2)
3.98 (−7.46–15.44)
0.491
−0.61 (−11.61–10.38)
0.912
−6.87 (−18.61–4.85)
0.247
LS BMD (g/cm2)
−4.15 (−11.91–3.60)
0.290
−3.55 (−11.12–4.01)
0.354
−0.36 (−8.28−7.54)
0.926
Women
LM (kg)
0.34 (0.05–0.63)
0.019
0.78 (0.31–1.24)
0.001
0.69 (0.21–0.16)
0.005
Total BF (kg)
0.01 (−0.08–0.10)
0.824
−0.19 (−0.33–0.04)
0.011
−0.15 (−0.31–0.00)
0.054
FN BMD (g/cm2)
4.92 (−2.24–12.09)
0.176
4.09 (−4.65–12.84)
0.356
0.79 (−8.82−10.41)
0.871
LS BMD (g/cm2)
1.82 (−3.02–6.67)
0.458
−1.15 (−7.08–4.77)
0.700
0.47 (−5.57–6.52)
0.876
LM, lean mass; BF, body fat; FN BMD, femoral neck bone mineral density; LS BMD, lumbar spine bone mineral density. Model 1, simple model for each body composition variable and strength. Model 2, all body composition variables included in the same model. Model 3, model 2 + protein intake (g/kg) + time spent sitting (min/week) + age (years). For men: F (7, 93) = 9.41; adjusted R2 = 0.37 . For women: F (7, 102) = 3.08; adjusted R2 = 0.11 ().
