TABLE 1.

Sensor Scale Crosswalk With ICU Mobility Scale (10)

Sensor Scale	ICU Mobility Scale (10)	Sensor Label
A. Nothing in bed	0. Nothing, lying in bed (i)	i
B. In-bed activity	1. Sitting in bed (ii), exercises in bed (iii)	ii
		iii
C. Out-of-bed activity	2. Passively moved to chair (no standing)	iii→v/vii→iv
	3. Sitting over edge of bed (iv)	iv
	4. Standing (v)	v
	5. Transferring bed to chair (with standing)	iii→v/vii→iv
	6. Marching (vi) in place (at bedside) for short duration	vi
D. Walking (vii)	7. Walking with assistance of two or more people	vii
	8. Walking with assistance of one person
	9. Walking independently with a gait aid
	10. Walking independently without a gait aid

This table compares our sensor scale, containing the four discrete levels of mobility that the noninvasive mobility sensor (NIMS) is trained to categorize from image segments of a patient in an ICU room, to the standardized ICU Mobility Scale, used by clinicians in practice today. The right column shows a descriptive mapping between the sensor scale and the ICU Mobility Scale using the NIMS “Patient Motion Status” (Table A.1, Supplemental Digital Content 1, http://links.lww.com/CCM/C382).