Grouping by function reveals walking problems in older adults
An observational study of 190 adults found walking differences in lower-functioning older adults even after accounting for their usual walking speed.
Limit: Later falls and falls prevented through screening were not reported
Edited by Boris Djordjevic · AgingResearch.News
In an observational study, 190 young and older adults completed walking tests on a pressure-sensitive walkway. Researchers measured 28 features of walking, including step timing, spacing and variation between steps. They divided older adults into higher- and lower-functioning groups using the Short Physical Performance Battery, a test of physical function.
After accounting for usual walking speed, lower-functioning older adults spent longer with each foot on the ground and with both feet on the ground than both other groups. They also took wider steps and showed greater variation in step spacing and timing. Higher-functioning older adults walked more like younger adults. The authors interpreted the lower-functioning group’s patterns as compensation for instability. Grouping older adults by function detected early mobility decline more sensitively than grouping them by age.
Why it matters
The authors suggest that combining detailed walking measurements with physical-function assessments may improve early screening for mobility decline and fall prevention as people age.
Caveats
These observational findings do not establish cause and effect. The abstract does not report whether this approach predicted later falls or whether using it for screening prevented falls.
- Walking speed
- Short Physical Performance Battery
- Mobility limitation
- Double support duration
- Gait variability
- Humans
The paper
Functional stratification reveals speed-independent gait impairments beyond chronological age
University of Florida
Clinical Biomechanics, Jun 6, 2026, Open access, accepted manuscript
