J A Caldwell1, B F Prazinko, K K Hall. 1. Aeromedical Research Laboratory, Fort Rucker, AL 36362-0577, USA. john.caldwell@se.amedd.army.mil
Abstract
OBJECTIVE: This study examined the effects of posture on the resting electroencephalographic (EEG) activity of sleep-deprived volunteers. METHODS: EEG data were collected under two conditions at 13 separate time points. Testing was performed while subjects remained in a normal seated position and then repeated while subjects stood upright. RESULTS: Results indicated that delta and theta activity progressively increased as a function of sleep loss, and that standing upright attenuated this effect. CONCLUSIONS: These results suggest that an upright posture increases EEG arousal and may be useful for counteracting fatigue in sleep-deprived individuals.
OBJECTIVE: This study examined the effects of posture on the resting electroencephalographic (EEG) activity of sleep-deprived volunteers. METHODS: EEG data were collected under two conditions at 13 separate time points. Testing was performed while subjects remained in a normal seated position and then repeated while subjects stood upright. RESULTS: Results indicated that delta and theta activity progressively increased as a function of sleep loss, and that standing upright attenuated this effect. CONCLUSIONS: These results suggest that an upright posture increases EEG arousal and may be useful for counteracting fatigue in sleep-deprived individuals.
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