Characteristics of estimation error in predictions of maximal step length: A comparison between older and young individuals

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Key Points

The research investigates differences in perception accuracy regarding maximal step length between older and younger individuals.
Measured predicted and actual maximal step lengths in older adults (65) and young adults (50).
Analyzed differences in estimation errors, absolute errors, and error rates between the two age groups.
Explored correlations between age and tendencies for overestimation or underestimation.
Older adults had significantly lower predicted and actual step lengths compared to younger adults.
Younger adults exhibited larger estimation errors and absolute errors than older adults, though error rates were similar across both groups.
A significant trend was found where older adults tended to underestimate their maximal step length (68%), while younger adults tended to overestimate (76%).

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Examines step length estimation errors in older versus young individuals, revealing important implications for fall risk assessment.

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Akutagawa et al. (2026) studied this question.

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