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Temporal characteristics of imagined and actual walking in frail older adults

  • Hideki Nakano
  • Shin Murata
  • Kayoko Shiraiwa
  • Hiroaki Iwase
  • Takayuki Kodama
Original Article
  • 19 Downloads

Abstract

Background

Mental chronometry, commonly used to evaluate motor imagery ability, measures the imagined time required for movements. Previous studies investigating mental chronometry of walking have investigated healthy older adults. However, mental chronometry in frail older adults has not yet been clarified.

Aims

To investigate temporal characteristics of imagined and actual walking in frail older adults.

Methods

We investigated the time required for imagined and actual walking along three walkways of different widths [width(s): 50, 25, 15 cm × length: 5 m] in 29 frail older adults and 20 young adults. Imagined walking was measured with mental chronometry.

Results

We observed significantly longer imagined and actual walking times along walkways of 50, 25, and 15 cm width in frail older adults compared with young adults. Moreover, temporal differences (absolute error) between imagined and actual walking were significantly greater in frail older adults than in young adults along walkways with a width of 25 and 15 cm. Furthermore, we observed significant differences in temporal differences (constant error) between frail older adults and young adults for walkways with a width of 25 and 15 cm. Frail older adults tended to underestimate actual walking time in imagined walking trials.

Conclusions

Our results suggest that walkways of different widths may be a useful tool to evaluate age-related changes in imagined and actual walking in frail older adults.

Keywords

Frail older adult Walking Motor imagery Mental chronometry 

Notes

Acknowledgements

We would like to thank all volunteers who participated in this study.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Hideki Nakano
    • 1
  • Shin Murata
    • 1
  • Kayoko Shiraiwa
    • 1
  • Hiroaki Iwase
    • 1
  • Takayuki Kodama
    • 1
  1. 1.Department of Physical Therapy, Faculty of Health ScienceKyoto Tachibana UniversityKyotoJapan

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