Figure 3
Bland and Altman plot for step length of the left leg. Bias (solid line) and RC95% (dashed lines) for step length between sessions 2 and 3 (within–day) (a) and between sessions 1 and 2 (between–day) (b) and between sessions 1 and 3 (between–day) (c). Note that the RC95% is mathematically identical to the Minimum Detectable Change, which represents the minimum change in score (at an individual level) that reflects true change (with 95% confidence), rather than measurement error alone. Negative values reflect an increase in step length.