Story by Daniel Strain
It’s one of the inescapable realities of aging: The older we get, the slower we tend to move—whether we’re walking around the block or just reaching for the remote control.
A new study led by University of Colorado Boulder engineers helps explain why.
The research is one of the first studies to experimentally tease apart the competing reasons why people over age 65 might not be as quick on their feet as they used to be. The group reported that older adults may move slower, at least in part, because it costs them more energy than younger people—perhaps not too shocking for anyone who’s woken up tired the morning after an active day.
The findings could one day give doctors new tools for diagnosing a range of illnesses, including Parkinson’s disease, multiple sclerosis, and even depression and schizophrenia, said study co-author Alaa Ahmed.
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