A study of eye movement during dual-task walking in elderly individuals
- PMID: 40171180
- PMCID: PMC11957741
- DOI: 10.1589/jpts.37.176
A study of eye movement during dual-task walking in elderly individuals
Abstract
[Purpose] Older adults are at higher risk of falling during dual-task walking; however, their eye movements during such time are unclear. Our previous studies measured eye movements during pseudo-walking (walking in place), with and without calculation tasks, to investigate the mechanisms of falls experienced by elderly individuals during dual-task walking. This study aimed to clarify whether eye movement during actual walking are similar to those during pseudo-walking obtained previously and examine the mechanism of falls during actual dual-task walking in elderly people. [Participants and Methods] Participants were 15 healthy older adults (four men, 11 women, mean age; 85.3 ± 5.8 years). A wireless eye movement-measuring device was used to measure eye movements during single-task walking without calculations, dual-task walking with calculations, and walking while consciously looking ahead. [Results] Eye movements during walking were similar to those observed during pseudo-walking. [Conclusion] During actual dual-task walking, the eyes move but are not focused on the forward visual field, increasing the risk of stumbling, a major cause of falls, and makes individuals more susceptible to falls.
Keywords: Accidental falls; Dual task walking; Eye movements.
2025©by the Society of Physical Therapy Science. Published by IPEC Inc.
Conflict of interest statement
The authors declare no conflict of interest related to this study or its publication.
References
-
- Grüsser OJ, Grüsser-Cornehls U: Physiology of vision. In: Schmidt RF, ed. Fundamentals of sensory physiology. New York: Springer-Verlag, 1978, pp 144–198.
-
- Lord SR, Dayhew J: Visual risk factors for falls in older people. J Am Geriatr Soc, 2001, 49: 508–515. - PubMed
-
- Lundin-Olsson L, Nyberg L, Gustafson Y: “Stops walking when talking” as a predictor of falls in elderly people. Lancet, 1997, 349: 617. - PubMed
-
- Menant JC, Schoene D, Sarofim M, et al. : Single and dual task tests of gait speed are equivalent in the prediction of falls in older people: a systematic review and meta-analysis. Ageing Res Rev, 2014, 16: 83–104. - PubMed
-
- Muir-Hunter SW, Wittwer JE: Dual-task testing to predict falls in community-dwelling older adults: a systematic review. Physiotherapy, 2016, 102: 29–40. - PubMed
