How the SPPB Is Scored, and How to Run It at Home
The Short Physical Performance Battery explained: the three parts, the exact 0–12 scoring cut-offs, what each band means and how to run the full SPPB at home with one phone.
The Short Physical Performance Battery (SPPB) is a standard test of lower-body function in older adults. It takes about ten minutes, needs only a chair and a few metres of floor, and gives a score from 0 to 12 that has been linked to disability, hospital use and survival in many studies. This guide explains the three parts, the exact scoring, what the total means and how to run it at home with one phone.
What is the SPPB?
The SPPB was developed at the US National Institute on Aging (Guralnik et al., 1994). It combines three short tests, each scored 0 to 4:
- Standing balance: three stances, 10 seconds each.
- Gait speed: a timed 4-metre walk at your usual pace, best of two.
- Chair stands: standing up and sitting down five times as fast as you safely can, arms crossed.
How the SPPB is scored
| Part | Points |
|---|---|
| Balance | Side-by-side stance held 10 s: 1 · semi-tandem held 10 s: 1 · tandem held 10 s: 2, held 3–9.99 s: 1 |
| 4 m walk | Under 4.82 s: 4 · 4.82–6.20 s: 3 · 6.21–8.70 s: 2 · over 8.70 s: 1 · unable: 0 |
| Five chair stands | 11.19 s or less: 4 · 11.20–13.69 s: 3 · 13.70–16.69 s: 2 · 16.70–60 s: 1 · unable or over 60 s: 0 |
The cut-points are those of the standard NIA protocol (the 1994 paper used an 8-foot walk; the 4-metre cut-points come from the protocol).
What does an SPPB score mean?
The total is read in four bands: 10–12 minimal limitation, 7–9 mild, 4–6 moderate and 0–3 severe. A pooled analysis of 17 studies and 16,534 people found higher odds of death for lower scores compared with 10–12: 3.25 for 0–3, 2.14 for 4–6 and 1.50 for 7–9 (Pavasini et al., 2016). In people without disability at the start, scores of 4–6 and 7–9 carried a higher risk of later mobility disability (Guralnik et al., 2000).
The SPPB is also part of sarcopenia assessment: 8 points or less counts as low physical performance in the European criteria (EWGSOP2), 9 or less in the Asian criteria (AWGS 2019). For change over time, about half a point is small but meaningful and about one point is substantial (Perera et al., 2006).
See it: a real SPPB, scored
A real test that scored 11 of 12, replayed on the app's 3D avatar: the three balance stances (sped up 3.2×, labelled), both 4-metre walks and five chair stands, with the score building on the right.
How to run the SPPB at home with one phone
Step Doctor keeps the phone in one place and guides you through every part by voice. You'll need a sturdy chair without wheels and about 6 metres of clear, straight floor.
- Set up. Stand the phone at about hip height facing the walkway. The app tells you when you're on your mark and fully in view.
- Balance. Facing the phone, hold each stance for 10 seconds. The voice guide and a foot diagram on screen show you how to stand, and the app checks your feet before the timer starts.
- Two walks. Walk 4 metres away from the phone, turn and wait, then walk 4 metres back. The app calls Stop as you reach the line.
- Chair stands. Place the chair where you stand, sit with your arms crossed, stand once to check you can, then stand up and sit down five times.
- Your score: the total out of 12, the points for each part, a 3D replay of every part and a PDF report.
Step Doctor also shows balance quality, how much your trunk sways while you hold each stance. It's an extra measure and never changes the 0–12 score.
Safety
- Have someone nearby during the balance stances, and stop if you feel unsteady.
- Use a chair that won't slide, placed on a non-slip floor.
- Don't attempt the chair stands if you can't stand up from a chair without using your arms; the app's single practice stand checks this first.
Questions
What's a good SPPB score? 10 to 12 means minimal limitation. A change of about one point is considered substantial.
Is it the same as the paper SPPB? Yes: the same three parts and the standard cut-offs. Step Doctor times everything from the video instead of a stopwatch.
Who uses the SPPB? Geriatric, rehabilitation and research teams, and anyone following strength and balance over time, for example after an illness or a hospital stay, together with their care team.
Related: gait analysis at home, the Timed Up and Go test and how Step Doctor measures movement.
More on the test in Step Doctor: SPPB. Every cut-off above, with its source, is on the reference values page. Download Step Doctor from the App Store or Google Play.
Step Doctor supports screening and monitoring. It doesn't diagnose, and results should inform, not replace, the judgement of a healthcare professional.
