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Table 3 Model summary for sex (male)

From: Relative contribution of muscle strength, lean mass, and lower extremity motor function in explaining between-person variance in mobility in older adults

VARIABLES

MODEL CHARACTERISTICS

DEPENDENT

INDEPENDENT

s-p r2

VIF

p-value

6-MIN WALK GAIT SPEED

App. Lean Mass / BW

0.184

1.516

0.011*

 Overall Model

Isomet. Strength / BMI

0.000

1.491

0.898

 R2 = 0.45; p-value = 0.003*

Four Sq. Step Test

0.082

1.131

0.076

 AIC = 229.4; MPC = 4.000

Shared Variance

0.184

–

–

 BIC = 234.5; D-W = 1.735

Unexplained Variance

0.550

–

–

STAIR CLIMB POWER

Lower Limb Lean Mass

0.304

1.151

<  0.001*

 Overall Model

Isokin. Strength / BMI

0.044

1.314

0.146

 R2 = 0.55; p-value = <  0.001*

Four Sq. Step Test

0.118

1.154

0.007*

 AIC = 192.1; MPC = 4.000

Shared Variance

0.084

–

–

 BIC = 197.3; D-W = 2.047

Unexplained Variance

0.450

–

–

5x CHAIR RISE

App. Lean Mass / Ht2

0.046

1.000

0.121

 Overall Model

Isomet. Strength / BW

0.470

1.091

<  0.001*

 R2 = 0.59; p-value = <  0.001*

Four Sq. Step Test

0.001

1.091

0.572

 AIC = 34.9; MPC = 4.000

Shared Variance

0.073

–

–

 BIC = 40.08; D-W = 1.699

Unexplained Variance

0.410

–

–

COMPLEX FUNCTIONAL TEST

App. Lean Mass / BW

0.266

1.193

0.007*

 Overall Model

Isokin. Strength

0.016

1.167

0.475

 R2 = 0.29; p-value = 0.046*

Four Sq. Step Test

0.000

1.151

0.951

 AIC = 109.7; MPC = 4.000

Shared Variance

0.008

–

–

 BIC = 114.9; D-W = 1.822

Unexplained Variance

0.710

–

–

  1. AIC = akaike info criterion; App = appendicular; BMI = body mass index; BW = body weight; CFT = complex functional task; Dep. = dependent; DIST. = Distance; D-W = Durbin-Watson; Ht = height; Isokin = isokinetic; Isomet. = isometric; Min = minute; MPC = mallows’ prediction criterion; Pred. = Predictor; SBC = schwarz bayesian criterion; s-p = semi-partial; sq. = square; var. = variable; VIF = variance inflation factor. * = significance (p <  0.050)