Table 3.

Difference in gait measures recorded in ICU survivors between the AMP 331 and manually measured parameters

Parameter	Walk 1 Mean (95%CI)	Walk 2 Mean (95%CI)
Distance (m)	-2.79 (-3.66 to -1.92)	-3.11 (-3.99 to -2.22)
Step Count (steps)	0.93 (0.39 to 1.48)	0.92 (0.44 to 1.40)
Speed (cm·s-1)	-21.94 (-29.32 to -14.55)	-28.87 (-34.94 to -22.80)

There was a consistent underestimation of distance by the AMP331 at all distances during walks one and two (walk 2 mean difference = -3.11m, 95% agreement of – 10.84 to 4.62m).