PTOtherGait & posture2024

How Healthy Older Adults Enact Lateral Maneuvers While Walking.

David M Desmet, Meghan E Kazanski, Joseph P Cusumano and 1 others

PMID 38035512

WHAT IT FOUND

Healthy older adults mostly used the same four-step lane-change strategy as young adults.

They began trading side-to-side stability for path accuracy earlier and settled more slowly. Across groups lower perceived balance confidence was linked with taking more steps after the cue.

Key findings

01Older adults generally used the same four-step lane-change strategy as young adults.

02Older adults began trading off step width regulation for lateral position regulation at the preparatory step, before initiating the maneuver.

03Lower perceived ability was associated with more steps after the cue, while greater physical ability was associated with reaching the new path faster.

STILL TO COME

How it was doneWhat they foundWhat it means for PTs

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What it does not show

The study included only healthy adults with no orthopedic problems, recent lower extremity injuries, visible gait anomalies, or medications that could affect gait, so it does not describe people with mobility limitations, balance disorders, or fall histories. The task was performed on a treadmill in a virtual reality environment at a fixed speed, with six maneuvers analyzed, so it may not capture real-world walking around obstacles or changing paths. The study measured stepping patterns, not falls or clinical outcomes, and it did not test an intervention. Some maneuvers were excluded because heel strikes could not be determined or because one young adult used a large cross-over step, reducing the analyzed data to 78 young and 70 older maneuvers. The sample sizes were twenty young adults and eighteen older adults, which limits how broadly the group comparisons can be applied.

Declared interests

The authors declared no conflicts of interest. The article is listed as supported by NIH extramural research support.

The easy way to misread this

Do not conclude that older adults are unsafe at lane changes or that this finding predicts falls. The study observed healthy adults on a treadmill and did not measure falls. The paper reported no significant group differences in step width or lateral position except at step 3.

Read it on PubMed →