title: Food group preferences and energy balance in moderately obese postmenopausal women subjected to brisk walking program.
abstract: The objective of the study was to examine the effects of a 16-week walking program on food group preferences and energy balance of sedentary, moderately obese (body mass index, 29-35 kg/m(2)), postmenopausal Caucasian women, aged 60 ± 5 years old. One hundred and fifty-six volunteers were subjected to 3 sessions/week of 45 min of walking at 60% of heart rate reserve. Total energy intake (TEI) and food group preferences (3-day dietary record), total energy expenditure (TEE, 3-day physical activity diary), cardiorespiratory fitness (2-km walking test), anthropometry, and body composition (bioelectrical impedance) were measured before and after walking. Data were statistically analyzed using an ANOVA with repeated measures on 1 factor (time). The modest increase in TEE of 151 ± 24 kcal/day (p < 0.0001) leads to body weight, fat mass losses, and waist girth reduction (p < 0.0001). TEI remained unchanged despite a slight decrease in carbohydrate intake and a minor increase in protein intake (p < 0.05). Analysis of food records revealed a decreased consumption of fruits (p < 0.05) and sweet and fatty foods (p < 0.01), but an increase in oil consumption (p < 0.0001) after walking. Women with the highest body weight loss showed the greatest reduction in the consumption of fruits, sugar, sweet foods, and fatty foods (p < 0.05). Women with the greatest fat mass loss showed the highest decrease in fatty food intake (p < 0.05). In conclusion, although our walking program changed some food group consumption patterns, body weight loss was primarily because of the increased TEE.
authors.affiliation: a Faculty of Sport Sciences and Human Kinetics, Université P. Sabatier, TF2 31062 Toulouse Cedex 9, France.
authors.forename: Sophie
authors.initials: S
authors.lastname: Garnier
authors.affiliation: b Department of Kinesiology, Faculty of Medicine, Pavillon de l'éducation physique et des sports, Laval University, QC G1V 0A6, Canada.
authors.forename: Karine
authors.initials: K
authors.lastname: Vallée
authors.affiliation: c Movement Sport and Health Sciences Laboratory (M2S), Unité Formation Recherche Activités Physiques et Sportives (UFRAPS), Université de Rennes 2-ENS, 35044 Rennes Cedex 1, Bruz, France.
authors.forename: Sophie
authors.initials: S
authors.lastname: Lemoine-Morel
authors.affiliation: a Faculty of Sport Sciences and Human Kinetics, Université P. Sabatier, TF2 31062 Toulouse Cedex 9, France.
authors.forename: Sandra
authors.initials: S
authors.lastname: Joffroy
authors.affiliation: d Faculty of Educational Science, Laval University, Québec, Canada.
authors.forename: Vicky
authors.initials: V
authors.lastname: Drapeau
authors.affiliation: b Department of Kinesiology, Faculty of Medicine, Pavillon de l'éducation physique et des sports, Laval University, QC G1V 0A6, Canada.
authors.forename: Angelo
authors.initials: A
authors.lastname: Tremblay
authors.affiliation: a Faculty of Sport Sciences and Human Kinetics, Université P. Sabatier, TF2 31062 Toulouse Cedex 9, France.
authors.forename: Gérard
authors.initials: G
authors.lastname: Auneau
authors.affiliation: b Department of Kinesiology, Faculty of Medicine, Pavillon de l'éducation physique et des sports, Laval University, QC G1V 0A6, Canada.
authors.forename: Pascale
authors.initials: P
authors.lastname: Mauriège
mesh_terms: D000368:Aged; D001823:Body Composition; D015992:Body Mass Index; D015930:Diet Records; D002149:Energy Intake / Q000502:physiology*; D004734:Energy Metabolism / Q000502:physiology*; D005260:Female; D005518:Food Preferences / Q000502:physiology*; D006801:Humans; D008875:Middle Aged; D009765:Obesity / Q000628:therapy*; D017698:Postmenopause / Q000502:physiology*; D057185:Sedentary Behavior; D016138:Walking / Q000502:physiology*
keywords: adiposité; aerobic exercise; body fatness; cardiorespiratory fitness; condition physique; diet; diète; exercice aérobie; menopause; ménopause; perte de poids; weight reduction