Sarcopenia Risk Calculator (SARC-F)

Screen for sarcopenia using the SARC-F questionnaire — five self-reported items covering strength, walking, rising from a chair, stair climbing, and falls.

👵 Clinical Score📐 SARC-F = sum of 5 items (0–10); score ≥ 4 suggests screening positive🏥 Health

Strength — difficulty lifting and carrying 4.5 kg

Assistance walking across a room

Rising from a chair or bed

Climbing a flight of 10 stairs

Falls in the past year

Please enter valid values.

Formula & Reference

Variable	Symbol	Formula	Units
Sarcopenia Risk Calculator (SARC-F)	—	SARC-F = sum of 5 items (0–10); score ≥ 4 suggests screening positive	points

Step-by-Step Examples

Example 1

Screens Negative

68-year-old, no difficulty with any item, no falls.

All five items score 0
Total = 0
Below the threshold of 4

✓ SARC-F 0 — screens negative

Example 2

Screens Positive

79-year-old, some difficulty lifting, some difficulty rising from a chair, a lot of difficulty with stairs, two falls.

Strength → 1, walking → 0
Rising → 1, stairs → 2
Falls 1–3 → 1
Total = 5

✓ SARC-F 5 — screens positive

Example 3

Marked Impairment

85-year-old, a lot of difficulty across all items, five falls in the past year.

Strength → 2, walking → 2
Rising → 2, stairs → 2
Falls 4 or more → 2
Total = 10

✓ SARC-F 10 — maximum score

Real-World Applications

👵

Community Screening

SARC-F needs no equipment, making it usable in primary care, community settings, and by telephone.

💪

Case Finding

EWGSOP2 recommends SARC-F as the first step in the find-assess-confirm-severity pathway for sarcopenia.

🦵

Falls Prevention

The falls item links sarcopenia screening directly to falls risk, which is one of its most consequential outcomes.

🏥

Preoperative Reserve

Sarcopenia screening is increasingly used to assess physiological reserve before major surgery in older adults.

Common Mistakes to Avoid

⚠️

Treating SARC-F as diagnostic

It is a screening instrument with high specificity but relatively low sensitivity. Confirming sarcopenia requires objective strength and muscle mass measurement.

⚠️

Assuming a negative screen rules it out

Because sensitivity is modest, early or moderate sarcopenia can screen negative. Clinical concern should still prompt objective testing.

⚠️

Accepting muscle loss as inevitable with age

Age-related muscle loss is substantially modifiable. Resistance training and adequate protein intake produce measurable gains even in people over 80.

Frequently Asked Questions

What is sarcopenia? ▾

Age-related loss of skeletal muscle mass and strength, associated with falls, functional decline, longer hospital stays, and increased mortality.

What is the SARC-F questionnaire? ▾

A five-item self-report screen covering strength, walking assistance, rising from a chair, stair climbing, and falls, scored 0 to 10.

What SARC-F score is positive? ▾

Four or more is the conventional threshold prompting further assessment with objective strength and muscle mass measurement.

How is sarcopenia confirmed? ▾

Under EWGSOP2, low muscle strength suggests probable sarcopenia, confirmed by low muscle quantity or quality, with poor physical performance indicating severe sarcopenia.

Can sarcopenia be reversed? ▾

It can be substantially improved. Progressive resistance training combined with adequate protein intake increases muscle mass and strength even in advanced age.