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Experimental module • not in your score

Dual-Task Walk

Walk your course normally, then again while naming the months backward. The change between them is your dual-task cost. It shows how a mental task affects your walking — it is not a dementia, cognition, or brain-age test, and it stays outside your score until validated.

Set up

Use the same measured, marked walking course both times, with support and a helper within reach. The secondary task is fixed for everyone: name the months of the year backward, starting from December.

Record your spoken errors honestly. A faster walk achieved by dropping the mental task is not an improvement — errors are shown alongside your cost.

Trial A — normal walk

Tap Start, walk the course at your usual pace, tap Done.

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Trial B — walk + months backward

Tap Start, walk the same course while saying December, November, October… tap Done when you finish.

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Dual-task costchange vs. your normal walk

Experimental module. Allowed: “shows how a standardized secondary task changes your walking performance.” Not a dementia, brain-age, or neurological test. © 2026 Ken Hoyer / Body Plus Fitness.