Robust evaluation of time since awakening using force platform posturography
Pham, Quang-Cuong; Mello, Marco Túlio de; Narciso, Fernanda Veruska; Mônico Neto, Marcos; Teixeira, Cristiane Westin; Antonietti, Leandro Stetner; Garbuio, Silvério Aparecido; Fernandes Júnior, Sílvio de Araújo; Koyama, Renata Guedes; Duarte, Marcos; Tufik, Sérgio.
Rev. bras. eng. biomed;
30(4): 322-329, Oct.-Dec. 2014. graf, tab
Artículo
en Inglés
| LILACS | ID: lil-732831
INTRODUCTION:
Sleepiness is responsible for a considerable proportion of traffic accidents. It is thus an important traffic safety issue to find a robust, objective and practical way to estimate the amount of time a person has been awake. To attempt to meet this goal, we investigated the relationship between sleepiness and posture control.METHODS:
Subjects were kept awake for 36 hours and posturographic data during quiet standing were collected every two hours by means of a force platform. The standing surface (rigid surface or foam surface) and visual (eyes open or eyes closed) conditions were manipulated.RESULTS:
In the more challenging conditions (with foam surface and/or eyes closed), the body sway variables derived from the center of the pressure measurement increased significantly when time since awakening became greater than 21 h in almost all subjects.CONCLUSION:
Based on this result, we propose a practical protocol that could robustly assess whether time since awakening was greater than 21 h.
Biblioteca responsable:
BR1.1
Texto completo