Functional Mobility Scale
A standardised rating scale used in PM&R and paediatric rehabilitation to classify a patient's level of walking ability across three specific distances, reflecting real-world mobility demands.
Full Definition
The Functional Mobility Scale (FMS) rates walking performance over three distances — 5 metres, 50 metres, and 500 metres — on a 6-point ordinal scale from 1 (uses wheelchair) to 6 (independent on all surfaces), enabling clinicians to capture the variability of walking ability across different environmental demands. It is particularly used in paediatric rehabilitation for children with cerebral palsy and in adult neurological rehabilitation. Editors should note that the FMS is distinct from the FIM (Functional Independence Measure) and from the GMFCS (Gross Motor Function Classification System), though all three may appear in the same paediatric rehabilitation document. The abbreviation FMS should be expanded on first use; note that FMS is also used for Fibromyalgia Impact Questionnaire in rheumatology, creating potential ambiguity.
Usage
Usage note: Always expand FMS on first use and specify the three-distance format when reporting scores (e.g., FMS 5m/50m/500m). Do not confuse with the Functional Independence Measure (FIM) or with rheumatology uses of 'FMS' for fibromyalgia-related scales.
In Context
- "The Functional Mobility Scale scores improved from 2/2/1 at admission to 4/3/2 at discharge, reflecting gains across all three walking distances." — Paediatric rehabilitation discharge summary
- "FMS ratings were recorded at the beginning and end of the inpatient programme to quantify functional mobility outcomes." — Rehabilitation outcome measurement report