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  • Title: Behavioural and metabolic characterisation of the low satiety phenotype.
    Author: Drapeau V, Blundell J, Gallant AR, Arguin H, Després JP, Lamarche B, Tremblay A.
    Journal: Appetite; 2013 Nov; 70():67-72. PubMed ID: 23792908.
    Abstract:
    Some individuals report weak appetite sensations and thus, have higher susceptibility to overeating. The aim of this study was (1) to evaluate the reliability of the satiety quotient (SQ), a marker of satiety efficiency; (2) to characterize the biopsychobehavioural profiles of individual presenting low satiety efficiency, i.e. the low satiety phenotype and (3) to document the impact of a weight loss program on these profiles. Sixty-nine obese men (BMI 33.6±3.0 kg/m², age 41.5±5.7 years) participated in a 16-week, non-restrictive weight loss intervention. Visual analog scales for appetite sensations in response to a test-meal were completed twice at baseline. Blood samples were collected before and during one test-meal. Questionnaires were administered before and after the intervention. The mean SQ showed good reliability (ICC=0.67). Baseline SQ scores tended to be negatively correlated with external hunger, anxiety and night eating symptoms (p<0.10). Moreover, the low satiety phenotype showed a lower cortisol response to the test-meal (p<0.05). The SQ seems to be a reliable marker of weaker appetite sensation responses. Stress/anxiety could be involved in the low satiety phenotype but did not influence the biopsychobehavioural changes in response to the intervention.
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