Activity Levels Among Lower-Limb Amputees: Self-Report Versus Step Activity Monitor

Frequency of activity level measured by self-report diary and SAM for activity measured over the (A) 24-hour period and (B) between 9:00 am and 9:00 pm.

Distribution of γ statistics for the (A) entire 24-hour period and (B) activity measured between 9:00 am and 9:00 pm.

Correlation of comparisons between self-report and measured activity levels for (A) rest, (B) low level, (C) medium level, and (D) high level. Points on the graphs represent the number of observations made for each activity level for each participant with the StepWatch and diary. Line on graphs represents the line of perfect agreement (r=1.0).