Heat induced fatigue and changes of the EEG is not related to reduced perfusion of the brain during prolonged exercise in humans
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Heat induced fatigue and changes of the EEG is not related to reduced perfusion of the brain during prolonged exercise in humans. / Rasmussen, P; Stie, Henrik; Nybo, Lars; Nielsen, Bodil.
I: Journal of Thermal Biology, Bind 29, Nr. 7-8, 2004, s. 731-737.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Heat induced fatigue and changes of the EEG is not related to reduced perfusion of the brain during prolonged exercise in humans
AU - Rasmussen, P
AU - Stie, Henrik
AU - Nybo, Lars
AU - Nielsen, Bodil
N1 - CURIS 2004 5200 273
PY - 2004
Y1 - 2004
N2 - (1) Exercise-induced hyperthermia is associated with a gradual slowing of the electroencephalogram (EEG), an increase in perceived exertion (RPE) and a lowering of the cerebral perfusion. (2) During exercise EEG changes were linearly correlated to core temperature (r 2=0.67; P<0.05) and RPE (r 2 =0.54, P<0.05), but manipulation of cerebral perfusion by voluntary breathing efforts and by CO 2 inhalation did not alter RPE or EEG. (3) In conclusion EEG changes with hyperthermic exercise are not a simple effect of the reduced cerebral perfusion but may relate to the fatigue that arises concomitantly with the increases in core and brain temperatures.
AB - (1) Exercise-induced hyperthermia is associated with a gradual slowing of the electroencephalogram (EEG), an increase in perceived exertion (RPE) and a lowering of the cerebral perfusion. (2) During exercise EEG changes were linearly correlated to core temperature (r 2=0.67; P<0.05) and RPE (r 2 =0.54, P<0.05), but manipulation of cerebral perfusion by voluntary breathing efforts and by CO 2 inhalation did not alter RPE or EEG. (3) In conclusion EEG changes with hyperthermic exercise are not a simple effect of the reduced cerebral perfusion but may relate to the fatigue that arises concomitantly with the increases in core and brain temperatures.
KW - Cerebral blood flow
KW - Core temperature
KW - Electroencephalogram
KW - Exercise
KW - Fatigue
KW - Hyperthermia
KW - Perceived exertion
UR - http://www.scopus.com/inward/record.url?scp=4744361127&partnerID=8YFLogxK
U2 - 10.1016/j.jtherbio.2004.08.047
DO - 10.1016/j.jtherbio.2004.08.047
M3 - Journal article
AN - SCOPUS:4744361127
VL - 29
SP - 731
EP - 737
JO - Journal of Thermal Biology
JF - Journal of Thermal Biology
SN - 0306-4565
IS - 7-8
ER -
ID: 218438003