ALS Functional Rating Scale (ALSFRS-R)

Measure functional decline in Amyotrophic Lateral Sclerosis using the Revised ALS Functional Rating Scale across speech, swallowing, handwriting, walking, and respiratory domains.

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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

Measure functional decline in Amyotrophic Lateral Sclerosis using the Revised ALS Functional Rating Scale across speech, swallowing, handwriting, walking, and respiratory domains

Each component has a specific meaning:

  • Revised ALS Functional Rating Scale across speech — The revised als functional rating scale across speech recorded for the scenario being assessed.
  • Swallowing — The swallowing recorded for the scenario being assessed.
  • Handwriting — The handwriting recorded for the scenario being assessed.
  • Walking — The walking recorded for the scenario being assessed.
  • Respiratory domains — The respiratory domains recorded for the scenario being assessed.

Note: Interpret the alsfrs-r result against the thresholds and context described above.

How to Use

Enter the Revised ALS Functional Rating Scale across speech, swallowing, handwriting, walking, respiratory domains for the scenario you are assessing. Measure functional decline in Amyotrophic Lateral Sclerosis using the Revised ALS Functional Rating Scale across speech, swallowing, handwriting, walking, and respiratory domains. Use the alsfrs-r result to inform your calculation.

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Frequently Asked Questions