Instrumented gait analysis: a measure of gait improvement by a wheeled walker in hospitalized geriatric patients.

This was an observational hospital study, not a randomized trial, so the walker was not tested against usual care or another device. The outcomes were lab gait measurements, not falls, independence, quality of life, or long-term function. Patients had to be able to walk 10 m unaided and follow instructions, so the findings do not apply to people who cannot walk that distance or have severe cognitive or visual problems. Frequent walker users were more impaired than first-time users before testing, which makes it hard to separate the effect of the walker from the patients' baseline differences. First-time users had only about 5 minutes of familiarization and no practice trials, so their results may not reflect a trained walker user. Variability measures came from only a 10-m walk, which the authors say limits their value as surrogate markers. Technical problems and discomfort excluded some patients, so the analyzed sample was smaller than the patients first submitted.

Do not read the 1.18-fold increase in walking speed and stride length as evidence that the walker improves clinical mobility or prevents falls. The study measured only a 10-meter lab walk, did not randomize walker use, and did not report falls or long-term function.