Personne : Doré, Jean
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Doré
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Jean
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Département de kinésiologie, médecine sociale et préventive, Faculté de médecine, Université Laval
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ncf11860368
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Publication Restreint Cortisol response to the Trier Social Stress Test in obese and reduced obese individuals(North-Holland Pub. Co., 2010-03-17) Drapeau, Vicky; Doré, Jean; Therrien, Fanny; Lupien, Sonia; Beaulieu, Serge; Tremblay, Angelo; Lalonde, Josée.Impact of body weight loss, body fat distribution and the nutritional status on the cortisol response to the Trier Social Stress Test (TSST) was investigated in this study. Fifty-one men (17 non-obese, 20 abdominally obese and 14 reduced obese) and 28 women (12 non-obese, 10 peripherally obese and 6 reduced obese) were subjected to the TSST in fed and fasted states. The TSST response was determined using salivary cortisol measurements. The nutritional status (being fed or fasted) had no effect on the cortisol levels during and following the TSST. Reduced obese men exhibited lower cortisol levels than non-obese men. Cortisol levels in obese men were not different from those of non-obese and reduced obese subjects. In women, there was no significant difference between groups. These finding suggest that weight status in men influences cortisol reactivity to a psychological stress and the different responses seen among genders could be linked to the different fat distributions that characterize men and women.Publication Restreint Awakening cortisol response in relation to psychosocial profiles and eating behaviors(Pergamon Press, 2007-09-05) Drapeau, Vicky; Doré, Jean; Lupien, Sonia; Therrien, Fanny; Beaulieu, Serge; Tremblay, Angelo; Richard, DenisAwakening cortisol response was measured in 78 men and women, on 3 mornings within a 2-month period. Psychosocial and eating behavior variables were assessed using self-administered questionnaires on anxiety (State–Trait Anxiety Inventory), depression (Beck Depression Inventory), body esteem (Body Esteem Scale for Adolescents and Adults), and eating behaviors (Three-Factor Eating Questionnaire and Eating Disorder Inventory-2). Data on food intake and appetite sensations were also collected using a buffet-type meal test, a 3-day food record and visual analog scales measured before and after a standardized breakfast meal test. In women, high anxiety, disinhibition and hunger scores, as well as poor body esteem and a high weight preoccupation, were negatively correlated to ACR. The factor that appeared to account the most for this inverse relation was emotional susceptibility to disinhibition (r = − 0.61, p = 0.003). The latter was also negatively associated with the satiety quotient for fullness in response to the standardized breakfast (r = − 0.48, p = 0.010). In men, ACR was negatively associated with flexible (r = − 0.33, p = 0.020) and strategic (r = − 0.28, p = 0.049) restraint behaviors. This study highlights a gender-dependent relationship between ACR, hence the activity of the hypothalamic–pituitary–adrenal axis, and eating behaviors and psychological profiles.