Rivermead Mobility Index (RMI)
What It Measures
The Rivermead Mobility Index asks fifteen yes-or-no questions about moving around, arranged from easiest to hardest. Turning over in bed comes first; running ten metres comes last.
Fourteen items are self-reported — can you get from lying to sitting, stand up from a chair in under fifteen seconds, walk ten metres with an aid, manage a flight of stairs, walk outside on uneven ground, pick something up off the floor. One item is observed: the examiner watches the person stand unsupported for ten seconds. Each yes scores 1, giving a total from 0 to 15. Because the items are ordered by difficulty, a person who passes a hard item can usually be credited with the easier ones below it.
Additional Notes
Licensing Notes: Reproduced widely across clinical resources without a posted fee. I found no explicit reproduction terms.
Learn More: That last point is also a strength. Because items get harder for physical rather than cognitive reasons, the RMI works with people whose comprehension is impaired. A Modified Rivermead Mobility Index with expanded scoring also exists.