I’m always skeptical of research studies based on shockingly small sample groups. This particular study from the American Academy of Neurology is only based on a sample size of 128 people. Nevertheless, the results are at least interesting enough to watch for future research and see if it gets corroborated in large tests. The results of the test seem to indicate that slow walking speed in the elderly may point to future Alzheimer’s problems. Of course, there are lots of other reasons for the elderly to walk slowly, so don’t get alarmed just yet if you’re not trotting about quite as quickly as you did in your youth.