The effects of body posture on resting electroencephalographic activity in sleep-deprived subjects.
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.
Caldwell
J A
JA
Aeromedical Research Laboratory, Fort Rucker, AL 36362-0577, USA. john.caldwell@se.amedd.army.mil
Prazinko
B F
BF
Hall
K K
KK
D000328:Adult; D001921:Brain / Q000503:physiopathology*; D004569:Electroencephalography; D005260:Female; D006801:Humans; D008297:Male; D011187:Posture / Q000502:physiology*; D012892:Sleep Deprivation / Q000503:physiopathology*; D013997:Time Factors