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- Hogenkamp, Pleunie S, et al.
(författare)
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Acute sleep deprivation increases portion size and affects food choice in young men.
- 2013
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Ingår i: Psychoneuroendocrinology. - : Elsevier BV. - 1873-3360 .- 0306-4530. ; 38:9, s. 1668-1674
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Tidskriftsartikel (refereegranskat)abstract
- Acute sleep loss increases food intake in adults. However, little is known about the influence of acute sleep loss on portion size choice, and whether this depends on both hunger state and the type of food (snack or meal item) offered to an individual. The aim of the current study was to compare portion size choice after a night of sleep and a period of nocturnal wakefulness (a condition experienced by night-shift workers, e.g. physicians and nurses). Sixteen men (age: 23±0.9 years, BMI: 23.6±0.6kg/m(2)) participated in a randomized within-subject design with two conditions, 8-h of sleep and total sleep deprivation (TSD). In the morning following sleep interventions, portion size, comprising meal and snack items, was measured using a computer-based task, in both fasted and sated state. In addition, hunger as well as plasma levels of ghrelin were measured. In the morning after TSD, subjects had increased plasma ghrelin levels (13%, p=0.04), and chose larger portions (14%, p=0.02), irrespective of the type of food, as compared to the sleep condition. Self-reported hunger was also enhanced (p<0.01). Following breakfast, sleep-deprived subjects chose larger portions of snacks (16%, p=0.02), whereas the selection of meal items did not differ between the sleep interventions (6%, p=0.13). Our results suggest that overeating in the morning after sleep loss is driven by both homeostatic and hedonic factors. Further, they show that portion size choice after sleep loss depend on both an individual's hunger status, and the type of food offered.
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| 2. |
- Chapman, Colin D., et al.
(författare)
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Acute sleep deprivation increases food purchasing in men
- 2013
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Ingår i: Obesity. - : Wiley. - 1930-7381 .- 1930-739X. ; 21:12
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Tidskriftsartikel (refereegranskat)abstract
- Objective To investigate if acute sleep deprivation affects food purchasing choices in a mock supermarket. Design and Methods On the morning after one night of total sleep deprivation (TSD) or after one night of sleep, 14 normal-weight men were given a fixed budget (300 SEKapproximately 50 USD). They were instructed to purchase as much as they could out of a possible 40 items, including 20 high-caloric foods (>2 kcal/g) and 20 low-caloric foods (<2 kcal/g). The prices of the high-caloric foods were then varied (75%, 100% (reference price), and 125%) to determine if TSD affects the flexibility of food purchasing. Before the task, participants received a standardized breakfast, thereby minimizing the potential confound produced by hunger. In addition, morning plasma concentrations of the orexigenic hormone ghrelin were measured under fasting conditions. Results Independent of both type of food offered and price condition, sleep-deprived men purchased significantly more calories (+9%) and grams (+18%) of food than they did after one night of sleep (both P<0.05). Morning plasma ghrelin concentrations were also higher after TSD (P<0.05). However, this increase did not correlate with the effects of TSD on food purchasing. Conclusions This experiment demonstrates that acute sleep loss alters food purchasing behavior in men.
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| 3. |
- Hogenkamp, Pleunie S., et al.
(författare)
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Effect of oral processing behaviour on food intake and satiety
- 2013
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Ingår i: Trends in Food Science & Technology. - : Elsevier BV. - 0924-2244 .- 1879-3053. ; 34:1, s. 67-75
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Tidskriftsartikel (refereegranskat)abstract
- Many foods can be consumed quickly or with a little chewing. An overview of 33 experiments suggests that oral processing plays a role in food intake by affecting satiation (assessed by the measurement of ad libitum intake) and satiety (assessed by measurement of subjective appetite ratings, subsequent intake, and/or release of hormones, such as CCK and GLP-1). An increase in oral processing may result in an increased timespan for satiety signals to induce meal termination or evoke satiety. Determinants of oral processing (e.g. bite size, chewing, texture) are modifiable factors that may be considered to contribute to food intake regulation.
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| 4. |
- Hogenkamp, Pleunie S, et al.
(författare)
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Sweet taste perception not altered after acute sleep deprivation in healthy young men.
- 2013
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Ingår i: Somnologie : Schlafforschung und Schlafmedizin = Somnology : sleep research and sleep medicine. - : Springer Science and Business Media LLC. - 1432-9123 .- 1439-054X. ; 17:2, s. 111-114
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Tidskriftsartikel (refereegranskat)abstract
- We hypothesized that acutely sleep-deprived participants would rate ascending concentrations of sucrose as more intense and pleasant, than they would do after one night of normal sleep. Such a finding would offer a potential mechanism through which acute sleep loss could promote overeating in humans.
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