title: Psycho-markers of weight loss. The roles of TFEQ Disinhibition and Restraint in exercise-induced weight management.
abstract: Eating behaviour traits, namely Disinhibition and Restraint, have the potential to exert an effect on food intake and energy balance. The effectiveness of exercise as a method of weight management could be influenced by these traits. Fifty eight overweight and obese participants completed 12-weeks of supervised exercise. Each participant was prescribed supervised exercise based on an expenditure of 500 kcal/session, 5d/week for 12-weeks. Following 12-weeks of exercise there was a significant reduction in mean body weight (-3.26±3.63 kg), fat mass (FM: -3.26±2.64 kg), BMI (-1.16±1.17 kg/m(2)) and waist circumference (WC: -5.0±3.23 cm). Regression analyses revealed a higher baseline Disinhibition score was associated with a greater reduction in BMI and WC, while Internal Disinhibition was associated with a larger decrease in weight, %FM and WC. Neither baseline Restraint or Hunger were associated with any of the anthropometric markers at baseline or after 12-weeks. Furthermore, after 12-weeks of exercise, a decrease in Disinhibition and increase in Restraint were associated with a greater reduction in WC, whereas only Restraint was associated with a decrease in weight. Post-hoc analysis of the sub-factors revealed a decrease in External Disinhibition and increase in Flexible Restraint were associated with weight loss. However, an increase in Rigid Restraint was associated with a reduction in %FM and WC. These findings suggest that exercise-induced weight loss is more marked in individuals with a high level of Disinhibition. These data demonstrate the important roles that Disinhibition and Restraint play in the relationship between exercise and energy balance.
authors: Centre for Psychology Studies, School of Social and International Studies, Richmond House, University of Bradford, Bradford, West Yorkshire BD7 1DP, UK. e.j.bryant@bradford.ac.uk
authors: E J
authors: EJ
authors: Bryant
authors: P
authors: P
authors: Caudwell
authors: M E
authors: ME
authors: Hopkins
authors: N A
authors: NA
authors: King
authors: J E
authors: JE
authors: Blundell
mesh_terms: D000328:Adult; D015992:Body Mass Index; D004435:Eating / Q000523:psychology; D002149:Energy Intake; D004734:Energy Metabolism; D015444:Exercise; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D007266:Inhibition, Psychological; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000628:therapy; D050177:Overweight / Q000628:therapy; D011795:Surveys and Questionnaires; D055105:Waist Circumference; D015431:Weight Loss