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Performance and sleepiness during a 24 h wake in constant conditions are affected by diet
IPM—National Institute for Psychosocial Medicine, Karolinska Institutet, Stockholm, Sweden.
Department of Medical Sciences, Nutrition, Uppsala University Hospital, Uppsala, Sweden.
IPM—National Institute for Psychosocial Medicine, Karolinska Institutet, Stockholm, Sweden.
Department of Medical Sciences, Nutrition, Uppsala University Hospital, Uppsala, Sweden.
Vise andre og tillknytning
2004 (engelsk)Inngår i: Biological Psychology, ISSN 0301-0511, E-ISSN 1873-6246, Vol. 65, nr 3, s. 251-263Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This study investigated the effects of high-carbohydrate (HC) and high-fat (HF) diet on cognitive performance, and subjective and objective sleepiness. Seven male participants were kept awake for 24 h in a metabolic ward. Meals were given every 4 h and cognitive performance and sleepiness ratings were assessed hourly. The Karolinska Drowsiness Test (KDT, EEG derived) was performed twice after meal. Performance in simple reaction time showed a significant interaction of diet and the post-prandial period, a slower reaction time was observed for the HC-diet 3.5 h after meal intake. Diet did not affect EEG measures but a general post-prandial increase of objective sleepiness was observed 3.5 h after meal servings. The HC-diet was significantly associated with an increase of subjective sleepiness. The study demonstrated that the HC-diet caused larger oscillation in performance and increased sleepiness as compared to HF-diet throughout day and night.

sted, utgiver, år, opplag, sider
2004. Vol. 65, nr 3, s. 251-263
Emneord [en]
Macronutrients Post-prandial Circadian Meal
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URN: urn:nbn:se:hig:diva-26322DOI: 10.1016/S0301-0511(03)00114-5Scopus ID: 2-s2.0-0742289590OAI: oai:DiVA.org:hig-26322DiVA, id: diva2:1195769
Tilgjengelig fra: 2008-10-17 Laget: 2018-04-06bibliografisk kontrollert

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