Motor Assessment Scale: Items, scoring, and how to administer it

Key Takeaways

The Motor Assessment Scale is a performance-based 8-item tool for measuring gross motor function in stroke and neurological populations, developed by Carr and Shepherd in 1985.

Each MAS item is scored on a 0-6 ordinal scale; a score of 5/5 indicates near-normal motor performance with minor functional limitations.

The MAS demonstrates good inter-rater and intra-rater reliability and is used by occupational therapists and physiotherapists in rehabilitation settings.

Pabau’s customisable clinical note templates allow therapists to record and track MAS scores longitudinally within patient records, removing the need for separate paper forms.

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The Motor Assessment Scale (MAS) is one of the most widely used standardised assessment tools in neurological rehabilitation. If you work with stroke patients or clients with motor impairments, understanding how to administer, score, and interpret the MAS is essential to tracking functional progress and informing evidence-based treatment decisions.

What is the Motor Assessment Scale?

The Motor Assessment Scale is a performance-based assessment designed to measure everyday motor function in patients who have experienced stroke or neurological injury. Developed by Caroline Carr and Roberta Shepherd in 1985, the MAS consists of 8 motor function items plus a general muscle tone assessment, each scored on a 7-point ordinal scale (0-6).

The scale evaluates gross motor tasks directly relevant to daily living, such as moving from lying to sitting, standing balance, walking, and hand function. It takes 15-20 minutes to complete and requires minimal equipment, making it practical for busy clinical settings.

Occupational therapists and physiotherapists use the MAS to establish baseline motor function, monitor changes over time, and guide rehabilitation planning in stroke units, outpatient clinics, and home-based settings.

The 8 Motor Assessment Scale items explained

Each of the 8 MAS items assesses a specific motor task relevant to daily function. Understanding what each item measures helps clinicians select appropriate treatment activities and recognise subtle improvements in motor control.

How the Motor Assessment Scale is scored

Scoring the motor assessment scale requires understanding the 0-6 ordinal scale applied to each item. A score of 0 indicates no motor response or inability to perform the task, while a score of 6 indicates optimal, independent performance.

A motor assessment scale score of 5 or 5/5 indicates near-normal performance – the client can complete the motor task with minimal functional limitation or compensation, typically requiring no assistance. A score of 6 reflects full independence with no observable dysfunction.

Intermediate scores (1-4) reflect varying degrees of motor impairment and functional limitation. The total MAS score (range 0-54 for the 8 items plus tonus) provides an overall measure of motor recovery. Clinicians track score changes across sessions to quantify progress and adjust treatment intensity.

How to administer the Motor Assessment Scale

Administering the motor assessment scale correctly ensures reliable and valid results. Follow these steps for consistent assessment.

1. Prepare the environment: Ensure the assessment space is safe, quiet, and free from distractions. Set up a bed, chair, and 5-metre walking space.
2. Explain the procedure: Inform the client of each task before performing it. Allow them to ask questions and reduce anxiety.
3. Observe performance: Watch the client attempt each motor task without providing physical assistance unless safety is at risk.
4. Score immediately: Record the score for each item based on the observed performance using the 0-6 criteria.
5. Document the general tonus: Assess muscle tone (normal, low, or high spasticity) and record separately.
6. Record total score: Sum the 8 item scores to obtain the total motor assessment scale score.
7. Note contextual factors: Document fatigue, pain, mood, or medications that may have influenced performance.

The MAS typically takes 15-20 minutes per client. Minimal equipment is needed: a bed, chair, 5-metre clear walkway, and a timing device. No expensive specialised tools are required, making it accessible across settings.

Psychometric properties: Reliability and validity

The Motor Assessment Scale has strong psychometric support in the stroke rehabilitation literature. Inter-rater reliability (the consistency of scores when different therapists assess the same client) is good to excellent, with intraclass correlation coefficients (ICC) typically ranging from 0.92 to 0.98 across items.

Intra-rater reliability (consistency when the same therapist re-scores a client) is similarly strong. The MAS also demonstrates good construct validity – it measures what it claims to measure (motor function) – and correlates well with functional outcome measures like the Barthel Index and functional independence in activities of daily living.

Responsiveness (the scale’s ability to detect meaningful change over time) is adequate, making it suitable for tracking rehabilitation progress across weeks and months of therapy.

How to use Pabau to document Motor Assessment Scale results

Digitising the motor assessment scale within a practice management system reduces administrative burden and enables longitudinal outcome tracking. Pabau’s customisable digital forms allow clinicians to embed the MAS scoring grid directly into patient records, automatically timestamping each assessment and linking scores to specific treatment sessions.

Rather than maintaining separate paper MAS forms, therapists can record scores, notes, and contextual factors in one integrated record. Pabau’s Insights Plus analytics then visualises score trends across sessions, showing clients their motor function improvements in real time – a powerful motivator for ongoing rehabilitation engagement.

Multi-disciplinary teams (occupational therapists and physiotherapists co-treating the same stroke client) benefit from shared digital records, reducing duplication and ensuring consistent assessment protocols across disciplines.

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Motor Assessment Scale vs. Fugl-Meyer Assessment: Key differences

The Fugl-Meyer Assessment (FMA) is often compared with the MAS because both assess motor function in stroke populations. The key difference is scope: the FMA is more comprehensive (33 items covering upper limb, lower limb, balance, sensation, and joint range) and takes longer to administer (30-40 minutes), while the MAS is shorter (8 items + tonus, 15-20 minutes) and focuses on functional gross motor tasks.

Choose the MAS for quick, practical bedside assessments in busy clinical settings. Choose the FMA when conducting detailed neurological examinations or research studies requiring fine-grained motor detail. Many clinics use both in sequence: the MAS early in recovery for rapid progress tracking, and the FMA for comprehensive baseline or discharge evaluations.

Who uses the Motor Assessment Scale?

The Motor Assessment Scale is used by occupational therapists and physiotherapists across multiple care settings: acute stroke units, inpatient rehabilitation facilities, outpatient therapy clinics, and home-based therapy services. Neuropsychologists and clinical psychologists also use the MAS when conducting comprehensive motor or functional assessments.

The tool is most common in stroke rehabilitation but is also used in traumatic brain injury recovery, spinal cord injury programmes, and patients with progressive neurological conditions requiring functional monitoring.

Conclusion

The Motor Assessment Scale is a practical, evidence-based tool for measuring gross motor function in stroke and neurological rehabilitation. Its 8 items assess everyday motor tasks, the 0-6 scoring scale is straightforward to apply, and it has strong reliability and validity. By documenting MAS scores within Pabau’s digital client records, clinics remove the friction of paper forms and gain real-time visibility into client progress – supporting better clinical decisions and stronger outcome reporting.

Continue your research

Looking for a stroke rehabilitation planning guide? Safer clinical notes provides frameworks for documenting stroke assessments and treatment plans securely.

Need to track multiple therapy outcomes? Pabau’s measurement tracking feature enables longitudinal documentation of MAS scores, Fugl-Meyer results, and other standardised measures alongside session notes.

Ready to integrate assessments into team workflows? Physical therapy EMR software discusses multi-disciplinary assessment coordination in rehabilitation clinics.

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