title: Effects of the addition of a resistance training programme to a caloric restriction weight loss intervention on psychosocial factors in overweight and obese post-menopausal women: a Montreal Ottawa New Emerging Team study.
abstract: The aim of this study was to examine the effects of the addition of a resistance training programme to a caloric restriction weight loss intervention on psychosocial profile. The study sample consisted of 137 overweight and obese post-menopausal women. Participants were randomized to a caloric restriction group and caloric restriction + resistance training group. Psychosocial, anthropometric, and metabolic variables were measured before and after the 6-month weight loss intervention. Both groups presented similar weight loss and there were no significant differences between the caloric restriction group and caloric restriction + resistance training group for changes in psychosocial profile. Thereafter, all participants were classified into quintiles based on the amount of weight loss. In all quintiles, women markedly improved body esteem and self-esteem, and decreased hunger and perceived risk for diabetes mellitus (P < 0.05). However, significant increases in dietary restraint were observed in quintiles 2-5 (> or =2.4 % body weight loss), decreases in disinhibition in quintiles 3-5 (> or =4.9 %), increases in self-efficacy in quintiles 3-5 (> or =4.9 %), and increases in health perceptions in quintile 5 (> or =11.1%). The results of this study do not support the hypothesis that the addition of a resistance training programme to a caloric restriction weight loss intervention has additional benefits on psychosocial profile. Overall, the significant improvements in the psychosocial profile observed were mostly accounted for by the degree of weight loss.
authors.affiliation: Department of Nutrition, University of Montreal, 110 Avenue des Pins Ouest, Montreal, Quebec, Canada. virginie.messier@ircm.qc.ca
authors.forename: Virginie
authors.initials: V
authors.lastname: Messier
authors.forename: Rémi
authors.initials: R
authors.lastname: Rabasa-Lhoret
authors.forename: Eric
authors.initials: E
authors.lastname: Doucet
authors.forename: Martin
authors.initials: M
authors.lastname: Brochu
authors.forename: Jean-Marc
authors.initials: JM
authors.lastname: Lavoie
authors.forename: Antony
authors.initials: A
authors.lastname: Karelis
authors.forename: Denis
authors.initials: D
authors.lastname: Prud'homme
authors.forename: Irene
authors.initials: I
authors.lastname: Strychar
mesh_terms: D001828:Body Image; D031204:Caloric Restriction; D002170:Canada; D003920:Diabetes Mellitus / Q000523:psychology; D015444:Exercise / Q000523:psychology*; D005081:Exercise Therapy / Q000523:psychology*; D005260:Female; D006801:Humans; D006815:Hunger; D007266:Inhibition, Psychological; D008875:Middle Aged; D009765:Obesity / Q000178:diet therapy / Q000523:psychology* / Q000628:therapy; D050177:Overweight / Q000178:diet therapy / Q000523:psychology / Q000628:therapy; D017698:Postmenopause; D055070:Resistance Training; D012649:Self Concept; D015431:Weight Loss