Aim 1
PD
REGRESSION, DISORDERS
To estimate power and sample size for relating the instrumented L-shape mobility test collected virtually in the home to the Mini-BESTest in-person, we used the pilot data from 114 people with PD who had measures on the Mini-BESTest and the ISAW – both performed in-person in the Balance Disorders Laboratory. Using multiple linear regression, we used a subset of objective measures to predict the Mini-BESTest total score as well as the four Mini-BESTest domain sub-scores. The subset of objective measures was selected based on bivariate correlations between the objective measures and the Mini-BESTest total score. A correlation at or above 0.4 was retained and included: 1) gait speed, 2) angle of the foot at heel strike, 3) stride length, 4) turning duration, 5) turning velocity, 6) steps during turning, and 7) range of motion of the 1