Functional reach test: Scoring, norms, and fall risk

Key takeaways

The functional reach test measures how far a patient can reach forward without moving their feet.

Duncan and colleagues published it in 1990, and it still takes about five minutes to run.

Under 6 inches signals high fall risk, 6 to 10 inches moderate, and above 10 inches low.

You average three valid trials, using a yardstick taped to the wall at the patient’s shoulder height.

Practice management software like Pabau stores every trial, charts the trend, and flags a score that drops.

Ask a patient to reach for something on a high shelf and you learn more about their balance than any conversation will. The functional reach test turns that moment into a number you can chart. It measures the furthest a person can reach forward while both feet stay planted.

That number carries weight. Falls are the leading cause of injury-related death among adults aged 65 and older, according to CDC falls data. A short reach flags the patient who needs a balance program now, rather than at some later review.

The test itself needs a yardstick and a clear wall. Consistency is the harder part. Small changes in foot position or arm height move the score by more than you would guess. The protocol below is worth following to the letter.

What the functional reach test measures

The functional reach test measures dynamic standing balance. It records how far a patient reaches forward past arm’s length while keeping a fixed base of support. Pamela Duncan and colleagues published it in 1990 as a fast screen for balance problems in older adults living at home.

The logic behind it is simple. To reach further, a patient has to shift their center of mass toward the edge of their base of support. Staying upright out there takes postural control. So a short reach points to a small margin of stability, and a small margin is what turns a stumble into a fall.

Since then the test has been studied in stroke survivors, long-term care residents, and patients with Parkinson’s disease. Its appeal is what it leaves out. No stopwatch, no walkway, no cognitive task.

The original paper is worth a look for the source data. Duncan PW, Weiner DK, Chandler J, Studenski S. “Functional reach: a new clinical measure of balance.” J Gerontol. 1990;45(6):M192-M197.

Everything you need before the first trial

Setup takes about 30 seconds, and it decides whether the score means anything. Here is the whole kit:

• Yardstick or measuring tape: mounted level on the wall at the patient’s shoulder height
• Clear wall space: at least 18 inches of it along the line of reach
• Level floor: no slope, no rug edge, nothing underfoot
• Painter’s tape: to mark where the feet go, so next session matches this one
• Somewhere to record it: three trial distances plus the average

Before the patient stands up, run through four quick questions. They take longer to read than to ask.

1. Can they stand unsupported for a minute? If not, use the seated version covered below.
2. Does either shoulder hurt or lack movement? Note it now, because it will shorten the reach.
3. Which arm is dominant? The yardstick goes on that side.
4. What is on their feet? Bare feet or flat shoes, and write down which you used.

One detail catches people out. Mount the yardstick at the acromion of the patient in front of you, not at a height you set once for the room. Reach is measured from their own shoulder, so the reference point has to follow them.

How to run the test in under five minutes

With the wall set up, the protocol runs in two short stages. Read the steps out as instructions if it helps the patient stay with you.

Set up and position the patient

1. Stand the patient in bare feet or flat shoes, feet shoulder-width apart, toes forward.
2. Position them alongside the wall with the dominant arm closest to it. They must not touch it.
3. Fix the yardstick at the height of the acromion process, the bony tip of that shoulder.
4. Ask them to raise the arm to 90 degrees of shoulder flexion, parallel to the floor, elbow straight.
5. Record where the third metacarpal head, the middle knuckle, sits against the yardstick. That is your baseline.

Record the reach and average the trials

1. Tell the patient to reach as far forward as they can, without stepping, lifting a heel, or touching the wall.
2. Read the knuckle position again once they have stopped moving forward.
3. Subtract the start from the finish. That difference is the reach distance for the trial.
4. Repeat until you have three valid trials, discarding any attempt with a step, a heel lift, or a grab.
5. Average those three trials. The average is the score, reported in inches or centimeters.

Give patients with low endurance a short rest between trials. Most older adults are done inside five minutes.

A worked example, start to finish

Say a 78-year-old arrives after stumbling on the stairs. Her baseline knuckle position reads 24 inches.

• Trial one finishes at 31 inches, so the reach is 7 inches.
• Trial two finishes at 30.5 inches, a reach of 6.5 inches.
• Trial three is void. She lifted her left heel, so you repeat it.
• The repeat finishes at 30 inches, a reach of 6 inches.

Her average is 6.5 inches, which lands in the moderate band and sits close to the high-risk line. All three valid trials go in the note, along with the void attempt and the reason for it. Next session, that detail is what tells you whether she has genuinely improved.

Five mistakes that quietly wreck the score

Scores drift between sessions for reasons that have nothing to do with the patient. These five account for most of it:

• Fixing the yardstick at one height for the room. Reach is measured from this patient’s shoulder, not from a mark on the wall.
• Letting the patient brush the wall. Contact turns balance into support and inflates the reach.
• Missing a heel lift. A raised heel changes the base of support, so the trial no longer counts.
• Reading the fingertip. Normative data comes from the third metacarpal head, and fingertips add a couple of inches.
• Changing footwear between visits. Sneakers and slippers do not produce the same number.

None of these are exotic. Together, though, they explain most scores that swing 2 inches with no clinical change behind them.

Normal reach distances by age and gender

Duncan’s original normative data came from adults aged 20 to 87 living in the community. The table below reflects those values. It applies to the standing test only, because the seated version has its own norms.

Treat these as community figures, because that is where they came from. Long-term care residents and patients with neurological conditions usually score lower, so use clinical judgment before you call a score abnormal.

Full tables, with confidence intervals and reliability figures, sit in the Shirley Ryan AbilityLab measures database.

What the score says about fall risk

Under 6 inches is the number to remember. Duncan’s 1992 follow-up work produced the cut-offs still used in practice today, and they were built for older adults.

Apply them carefully to anyone younger, and never to the seated version.

The bands are useful, but they are not a verdict. A patient below 6 inches carries roughly four times the fall risk of someone above 10, per Duncan’s follow-up data. Read that alongside the history, the medication list, and a broader fall risk assessment, rather than on its own.

How much you can trust the numbers

The test has held up for more than three decades because its measurement properties are strong. Two clinicians testing the same patient will usually land within a fraction of an inch of each other.

Reliability figures shift with the population and the setting. If you are reporting them for research or a quality project, cite the specific study rather than the range.

Seated and lateral versions for patients who cannot stand

The standard test needs a patient who can stand safely. When that is off the table, the modified functional reach test (mFRT) measures the same idea from a seated position. Lynch, Leahy and Barker published the seated version in 1998, in a study of patients with spinal cord injury.

• Forward reach: patient sits upright without back support, arm at 90 degrees, same three-trial average
• Lateral reach: arm at 90 degrees of abduction, reaching sideways without trunk rotation
• Normative values: separate from the standing norms, so never cross-apply them
• Time to administer: around 10 minutes for all three directions

The seated version earns its keep in stroke and Parkinson’s caseloads, where standing balance testing is not yet safe. You can read the original reliability data in Phys Ther. 1998;78(2):128-133.

Because both versions often sit in the same chart, occupational therapy software with customizable assessment forms saves a lot of duplicated typing.

How the test behaves in different patient groups

The test was validated in community-dwelling older adults, yet it gets used far beyond them. Each group comes with a caveat worth knowing before you interpret a score:

• Community-dwelling older adults: the original validation group, so the norms and cut-offs apply directly
• Long-term care residents: often score 3 to 5 inches lower than their community peers, so adjust expectations before labeling a score
• Stroke survivors: use the seated version when standing is unsafe, and note arm dominance plus any trunk compensation
• Parkinson’s disease: scores track disease severity and fluctuate with medication timing, so retest more often
• Wheelchair users: the standing test does not apply, so use the seated version and its own norms

Younger athletes are a special case. Compare them against the 20 to 40 year range, never the geriatric cut-offs. Balance data also earns a place in clearance decisions, which is where a structured return-to-running protocol puts it to work.

When another balance test is the better choice

Three questions usually settle which tool to pick up:

1. Need a number in five minutes? Use the functional reach test.
2. Need to know why the patient is unsteady? Use the Berg Balance Scale, which scores 14 separate tasks.
3. Is walking the problem? Use the Timed Up and Go, since it covers standing, gait, and turning.

In practice, the reach test and the Timed Up and Go pair well. Together they cover forward balance and walking in about 10 minutes. APTA guidance points the same way: lean on several validated measures rather than one, because no single test carries the whole picture.

Where the functional reach test falls short

Knowing the limits keeps you from over-reading a good score:

• Forward only. Lateral and backward balance go unmeasured, so a patient with sideways instability can still score well.
• Standing required. Anyone who cannot stand unsupported needs the seated version instead.
• The arm matters. Shoulder pain shortens the reach, so record it and check the joint with a range of motion assessment.
• No fear, no thinking. The score says nothing about fear of falling or divided attention, so pair it with a self-report scale.
• Modest prediction. On its own it forecasts falls only moderately well, which is why batteries beat single tests.

A short reach also never tells you why. When the history points to dizziness rather than weakness, vestibular work such as caloric testing answers a question this test cannot.

Exercises that move the score

Improving the score means improving forward postural stability. These categories all have support in the fall prevention literature, and all belong in a supervised program.

• Weight shifting: slow forward shifts in standing, progressing to eyes closed or an unstable surface
• Functional reaching: reaching for shelves and targets at different heights, copying everyday tasks
• Tandem stance: narrowing the base of support, progressing from the parallel bars to unsupported
• Core work: trunk stability, which is the platform the reach is generated from
• Ankle strategy training: calf raises and heel-to-toe drills, because limited dorsiflexion shortens the reach
• Dual-task drills: reaching while answering questions, which mirrors how falls happen in real life

Before you blame the trunk for a short reach, check the ankle. A knee-to-wall test takes a minute and often explains the score. Frame all of this as fall prevention rather than test practice, because the aim is stability that carries over to the stairs at home.

What to write in the note so it holds up

Documentation does two jobs here. It gives you a defensible clinical record, and it shows a payer why therapy should continue. Both need more detail than a single averaged number.

Record all of the following, every time:

• Date and session number
• All three trial distances, plus any void attempt and why it was void
• The averaged score, with the unit stated
• Foot position and yardstick height, so the next clinician can copy them
• Footwear worn during the test
• Any shoulder or arm limitation that affected the reach
• The risk band, high, moderate or low, with the cut-off you used
• Change from baseline or last session, and what you make of it

In a SOAP note, the trial distances belong in the objective section. The risk band and your interpretation belong in the assessment. Our guide to SOAP progress notes shows the same split applied across a course of care.

Billing follows the same logic. The initial score usually supports the evaluation you bill under CPT code 97161, and later scores support the case for continued visits. Vague entries are what reviewers question first.

Free-text boxes are where this falls apart, because completeness varies by clinician and by how busy the day was. Digital intake forms with a field per trial remove that variation. A physiotherapy clinic management system then keeps every score in date order for the progress review.

How Pabau keeps every reach score in one place

Most physical therapy and occupational therapy practices still record this test on paper or in a free-text box. That is fine for one visit. It falls apart when you need to see whether a patient has improved across eight of them.

Pabau, an all-in-one practice management system, handles the tracking for you. With measurements tracking, you build a field for each trial and the average calculates itself. Every session’s score lands on one chart, so the trend is already drawn when the progress review arrives.

The follow-up can look after itself too. With automated workflows, a score crossing the 6-inch line can trigger a falls prevention review, so it no longer depends on someone remembering. Scores also sit in the same record as appointments and notes in a physical therapy EMR, rather than in a spreadsheet nobody opens.

The payoff is time. Less of it spent rebuilding a history from paper, more of it spent on the balance work that actually shifts the score.

Track balance outcomes across every patient visit

Build a structured reach test form, watch the trend chart itself, and let a falling score trigger the follow-up task automatically. No spreadsheets, no missing trials.

Book a demo

Conclusion

Non-fatal falls among older adults cost the US health system more than $80 billion in 2020, according to CDC estimates. Spotting the patient at risk before the fall is one of the highest-value five minutes in rehabilitation, and this test buys it cheaply.

The trade-off is discipline. A score is only as good as the setup behind it. Tape the foot position, keep the yardstick at the patient’s shoulder, and write down every trial. Do that and the number becomes evidence. Skip it and you have a figure nobody can defend.

Pick one thing to change this week. Standardize how your team records the test, then look at what the trend tells you a month later. Book a demo to see how Pabau keeps balance scores, notes, and follow-ups in one patient record.

Continue your research

Billing the follow-up visit? CPT code 97164 covers physical therapy re-evaluation and the documentation reviewers expect with it.

Writing up a hands-on session? Massage therapy SOAP notes shows how to lay out objective findings a reviewer can follow.

Is dizziness driving the unsteadiness? Autonomic testing explains the blood pressure and heart rate workup behind some unexplained falls.

Is the shoulder limiting the reach? Shoulder range of motion gives you a structured place to record what you measured.

Coordinating a falls prevention plan? Case management note keeps referrals, goals, and follow-up steps in one shared record.

Frequently asked questions