Figure 3. Total Variance (R²) in Balance and Mobility Performance Described by Separate Multivariate Linear Regression Models*.

SPPB: Short Physical Performance Battery

BBS: Berg Balance Score

UST: Unipedal Stance Test

ExtSTR: Trunk extension strength (Newtons)

FlexSTR: Trunk flexion strength (Newtons)

ExtEND: Log transformed Trunk Extension Test (sec)

FlexEND: Log transformed Trunk Extension Test (sec)

LegSTR: Leg Press Strength (Newtons)

^* All models adjusted for age, gender and BMI