Citation

Tietäväinen A, Gates FK, Meriläinen A, Mandel JE, Hæggström E. Med. Eng. Phys. 2013; 35(12): 1850-1853.

Affiliation

Department of Physics, University of Helsinki, Electronics Research Laboratory, Helsinki, Finland. Electronic address: aino.tietavainen@helsinki.fi.

Copyright

(Copyright © 2013, Institute of Physics and Engineering in Medicine, Publisher Elsevier Publishing)

DOI

10.1016/j.medengphy.2013.08.007

PMID

24054980

Abstract

A field-usable sleepiness tester could reduce sleepiness related accidents. 15 subjects' postural steadiness was measured with a Nintendo® Wii Fit balance board every hour for 24h. Body sway was quantified with complexity index, CI, and the correlation between CI and alertness predicted by a three-process model of sleepiness was calculated. The CI group average was 8.9±1.3 for alert and 7.9±1.4 for sleep deprived subjects (p<0.001, ρ=0.94). The Wii Fit board detects the impairment of postural steadiness. This may allow large scale sleepiness testing outside the laboratory setting.

Language: en