Table 1.

Sarcopenia Staging Criteria^a

Stage	Muscle Massb	Muscle Strengthc		Performanced
Presarcopenia	✓
Sarcopenia	✓	✓	or	✓
Severe Sarcopenia	✓	✓		✓

^aAlternate criteria for muscle mass, grip strength, and gait speed cutoff values also have been proposed by multiple investigators and sarcopenia consensus groups.³⁷,⁴⁰

^bMuscle mass (based on appendicular lean body mass scaled to height, kg/m²) Men: ≤ 8.50 kg/m²; Women: ≤ 5.75 kg/m².

^cMuscle strength (based on grip dynamometry, kg) Men: < 30 kg; Women: < 20 kg.

^dStandardized functional assessment (eg, the Short Physical Performance Battery < 7, or gait speed < 1.0 m/s).