Minimal detectable change of gait and balance measures in older neurological patients: estimating the standard error of the measurement from before-after rehabilitation data thanks to the linear mixed-effects models

Table 1 95% MDC of gait and TUG tests mobility measures

LMMs: linear mixed-effects models; CTT: classical test theory; STW: sit to walk; ω: peak angular velocity along the vertical axis during the first turning phase of the TUG test; SEM: standard error of the measurement; MDC: 95% minimal detectable change; e: Euler’s number. e^MDC on the gait speed row (italics) is from LMMs or ANOVA with ln-transformed gait speed as the predictor. Complete sample LMMs: SEM and MDC were calculated from the full participants’ sample using random intercepts and slopes LMMs with the session (T₀ vs. T₁) as a fixed effect. Steady participants CTT: SEM and MDC were calculated from the subset of stable participants (i.e. strictly unchanged after rehabilitation) using ANOVA.

ISSN: 1743-0003