Key points
- The six-minute walk test (6MWT) measures how far a patient can walk in six minutes on a flat, standardized walkway; the score is the total distance in meters.
- In community-dwelling older adults, mean distances fall with age, from 572 m (men) and 538 m (women) at 60–69 to 417 m and 392 m at 80–89.
- In older adults, about 20 m is a small meaningful change and about 50 m a substantial one; across patient groups, published MCIDs range from 14.0 to 30.5 m.
A simple test of functional walking capacity
The 6MWT asks a patient to walk as far as possible in six minutes, at their own pace, back and forth along a walkway. The Shirley Ryan AbilityLab Rehabilitation Measures Database describes it as a measure of submaximal aerobic and functional walking capacity. Where gait speed captures how fast someone walks over a short distance, the 6MWT shows whether they can keep walking.
How the test is performed
Drawing on the American Thoracic Society (ATS) guidelines, the Rehabilitation Measures Database and the ATS patient information sheet describe the test:
- The patient rests seated for about 10 minutes; blood pressure, heart rate and usually oxygen saturation are measured.
- ATS recommends a flat 30 m (100 ft) walkway marked every 3 m, with cones at the turnaround points.
- The patient rates fatigue and shortness of breath before and after the walk.
- The goal is to walk as far as possible in six minutes, back and forth between the cones.
- The clinician announces each minute and otherwise gives only the scripted feedback in the guidelines. If assisting, they stay at least half a step behind so as not to set the pace.
- Standing rests are allowed; the timer keeps running and rests are recorded.
- Assistive devices are allowed, documented, and kept the same at every test.
The score is the total distance walked. The ERS/ATS technical standard notes that results are sensitive to small changes in method and that two tests should be conducted; patients often walk farther on a second attempt.
On safety, the ATS patient sheet notes the test may be delayed or not done after a heart attack in the last month, with concern for poor blood flow to the heart, or with severe uncontrolled high blood pressure, and may be stopped for chest pain, lightheadedness, dizziness or a severe drop in oxygen saturation.
Normative distances by age and sex
Steffen and colleagues tested 96 community-dwelling adults aged 61–89 who functioned independently and did not use assistive devices. Mean six-minute walk distances, as reported in the Rehabilitation Measures Database:
| Age | Men | Women |
|---|---|---|
| 60–69 | 572 m | 538 m |
| 70–79 | 527 m | 471 m |
| 80–89 | 417 m | 392 m |
These are group means from a small, healthy sample, not cut-offs. For healthy adults aged 40–80, Enright and Sherrill derived sex-specific prediction equations from height, weight and age. More norms are in our functional test reference values.
How much change is meaningful?
In older adults, Perera and colleagues put a small meaningful change at about 20 m and a substantial change at about 50 m. A systematic review by Bohannon and Crouch found published MCIDs from 14.0 to 30.5 m in adults with conditions including COPD, coronary artery disease and fear of falling. Both report estimates for groups of patients, not thresholds for an individual. Whether one patient's change is real also depends on how consistently the test was done, which we discuss in real change vs. measurement noise.
What the distance leaves out
Two patients who both walk 400 m can get there very differently. One holds a steady pace; another starts fast and slows sharply after minute three. One walks symmetrically; another shortens one step or leans on the turns. Pacing, gait pattern and symmetry can help explain a distance and guide the plan of care. Capturing the test the same way at each visit makes these patterns visible and comparable over time.
Keeping it in context
The 6MWT measures walking capacity; it does not diagnose. It sits alongside the tests in our movement assessment test guide, history, symptoms and vital signs. Objective, consistent measurement supports that picture; interpreting it remains a matter of clinical judgment.
References
- ATS Committee on Proficiency Standards for Clinical Pulmonary Function Laboratories. ATS statement: guidelines for the six-minute walk test. Am J Respir Crit Care Med. 2002;166(1):111-117. doi:10.1164/ajrccm.166.1.at1102
- Holland AE, Spruit MA, Troosters T, et al. An official European Respiratory Society/American Thoracic Society technical standard: field walking tests in chronic respiratory disease. Eur Respir J. 2014;44(6):1428-1446. doi:10.1183/09031936.00150314
- Heinicke G, Clay R, DeCato TW. Six-minute-walk testing (ATS Patient Education Series). Am J Respir Crit Care Med. 2021;204(3):P5-P6. doi:10.1164/rccm.2043p5
- Shirley Ryan AbilityLab. Rehabilitation Measures Database: 6 Minute Walk Test. Accessed 2026. sralab.org
- Steffen TM, Hacker TA, Mollinger L. Age- and gender-related test performance in community-dwelling elderly people: Six-Minute Walk Test, Berg Balance Scale, Timed Up & Go Test, and gait speeds. Phys Ther. 2002;82(2):128-137. doi:10.1093/ptj/82.2.128
- Enright PL, Sherrill DL. Reference equations for the six-minute walk in healthy adults. Am J Respir Crit Care Med. 1998;158(5 Pt 1):1384-1387. doi:10.1164/ajrccm.158.5.9710086
- Perera S, Mody SH, Woodman RC, Studenski SA. Meaningful change and responsiveness in common physical performance measures in older adults. J Am Geriatr Soc. 2006;54(5):743-749. doi:10.1111/j.1532-5415.2006.00701.x
- Bohannon RW, Crouch R. Minimal clinically important difference for change in 6-minute walk test distance of adults with pathology: a systematic review. J Eval Clin Pract. 2017;23(2):377-381. doi:10.1111/jep.12629