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Open AccessArticle

The Effect of Age on Gait Speed When Texting

1
Department of Health, Queensland Government, Brisbane, QLD 4000, Australia
2
Centre for Health Services Research, The University of Queensland, Brisbane, QLD 4102, Australia
3
School of Public Health, The University of Queensland, Brisbane, QLD 4006, Australia
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(2), 599; https://doi.org/10.3390/ijerph17020599
Received: 12 December 2019 / Revised: 14 January 2020 / Accepted: 14 January 2020 / Published: 17 January 2020
(This article belongs to the Special Issue Physical Activity and Elder Health)
Texting while walking exerts a high cognitive load, and may be a sensitive test of the integrity of the cognitive–motor interface. We aimed to investigate the association between chronological age and gait speed while texting. A convenience sample of 308 community-dwellers was recruited: n ≥ 50 in each age group (20–29, 30–39, 40–49, 50–59) and n = 100 aged ≥60 years. Gait speed was measured over 10 metres under two experimental conditions: 1) walking at usual pace; 2) walking at usual pace while texting the message “Good morning Harry” on their smartphone. Both median gait speed with and without texting decreased with increasing age (p < 0.001). The differences between single- and dual-task gait speed were substantial for each age group and increased after the age of 50 years (p < 0.001). Median gait speeds while texting in people aged 50–59 (1.07 m/s) and ≥60 years (1.00 m/s) were below the recommended minimum for safely crossing roads (1.20 m/s). Texting while walking currently exposes people aged 50 and over to considerable environmental hazards. The significant slowing of gait speed while texting from middle age may be a marker of neurodegeneration, a cohort effect, or an appropriate compensatory response to reduce the risk of injury. View Full-Text
Keywords: ageing; gait speed; physical health; dual task test; texting ageing; gait speed; physical health; dual task test; texting
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Alapatt, L.J.; Peel, N.M.; Reid, N.; Gray, L.C.; Hubbard, R.E. The Effect of Age on Gait Speed When Texting. Int. J. Environ. Res. Public Health 2020, 17, 599.

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