Modified Ashworth Scale for Spasticity

Grades muscle spasticity using the Modified Ashworth Scale (MAS): Grade 0 (no increase in tone), Grade 1 (slight increase, catch-and-release), Grade 1+ (catch followed by minimal resistance throughout ≤half of ROM), Grade 2 (marked increase, moved easily), Grade 3 (considerable increase, passive movement difficult), Grade 4 (affected part rigid in flexion or extension).

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Grades muscle spasticity using the Modified Ashworth Scale (MAS): Grade 0 (no increase in tone), Grade 1 (slight increase, catch-and-release), Grade 1+ (catch followed by minimal resistance throughout ≤half of ROM), Grade 2 (marked increase, moved easily), Grade 3 (considerable increase, passive movement difficult), Grade 4 (affected part rigid in flexion or extension)

Each component has a specific meaning:

  • Modified Ashworth Scale : Grade 0 — The modified ashworth scale : grade 0 recorded for the scenario being assessed.
  • Grade 1 (slight increase — The grade 1 (slight increase recorded for the scenario being assessed.
  • Catch- — The catch- recorded for the scenario being assessed.
  • -release) — The -release) recorded for the scenario being assessed.
  • Grade 1+ — The grade 1+ recorded for the scenario being assessed.
  • Grade 2 (marked increase — The grade 2 (marked increase recorded for the scenario being assessed.

Note: Interpret the ashworth spasticity scale result against the thresholds and context described above.

How to Use

Enter the Modified Ashworth Scale : Grade 0, Grade 1 (slight increase, catch-, -release), Grade 1+, Grade 2 (marked increase for the scenario you are assessing. Grades muscle spasticity using the Modified Ashworth Scale (MAS): Grade 0 (no increase in tone), Grade 1 (slight increase, catch-and-release), Grade 1+ (catch followed by minimal resistance throughout ≤half of ROM), Grade 2 (marked increase, moved easily), Grade 3 (considerable increase, passive movement difficult), Grade 4 (affected part rigid in flexion or extension). Use the ashworth spasticity scale result to inform your calculation.

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Frequently Asked Questions