title: Bone Variables in Active Overweight/Obese Men and Sedentary Overweight/Obese Men.
abstract: The aim of this study was to compare bone variables in active overweight/obese men and sedentary overweight/obese men. Thirty-seven active overweight/obese men and 45 sedentary overweight/obese men participated in this study. Weight and height were measured, and body mass index was calculated. Body composition and bone variables (bone mineral content [BMC], bone mineral density [BMD], geometric indices of hip bone strength, and trabecular bone score) were measured by DXA. Physical activity level, daily calcium intake, daily protein intake, and sleep duration were measured by validated questionnaires. Maximum oxygen consumption (VO2max) was determined by direct measurement while exercising on a medical treadmill. One-repetition-maximum half-squat of the lower limbs was measured using a validated protocol. Body weight and body mass index were higher in sedentary overweight/obese men than in active overweight/obese men. In the whole population (n = 82), VO2max (in liter per minute), lean mass, and one-repetition-maximum half-squat were positively correlated to BMC, BMD, and geometric indices of hip bone strength (cross-sectional area and section modulus [Z] of the femoral neck [FN]). After adjusting for body weight using a 1-way analysis of covariance, active overweight/obese men displayed higher whole-body BMC, lumbar spine BMD, total hip BMD, FN BMD, FN cross-sectional area, and FN Z values than sedentary overweight/obese men. In conclusion, the current study suggests that physical activity level positively affects bone variables in overweight/obese men. Optimizing lean mass and muscular strength of the lower limbs can help to prevent osteoporosis in overweight and obese men.
authors.affiliation: Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon; Laboratoire VIP'S, UFR-APS, Campus la Harpe, Université Rennes 2, Rennes, France.
authors.forename: Georges
authors.initials: G
authors.lastname: El Khoury
authors.affiliation: Laboratoire Mouvement Sport Sante, UFR APS, Rennes, France.
authors.forename: Hassane
authors.initials: H
authors.lastname: Zouhal
authors.affiliation: Laboratoire VIP'S, UFR-APS, Campus la Harpe, Université Rennes 2, Rennes, France.
authors.forename: Geneviève
authors.initials: G
authors.lastname: Cabagno
authors.affiliation: Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon; I3MTO, EA 4708, Université d'Orléans, Cedex 1, France.
authors.forename: César
authors.initials: C
authors.lastname: El Khoury
authors.affiliation: Bellevue University Medical Center, Faculty of Medicine, Saint Joseph University, Mansourieh, Lebanon.
authors.forename: Maroun
authors.initials: M
authors.lastname: Rizkallah
authors.affiliation: Bellevue University Medical Center, Faculty of Medicine, Saint Joseph University, Mansourieh, Lebanon.
authors.forename: Ghassan
authors.initials: G
authors.lastname: Maalouf
authors.affiliation: Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon. Electronic address: rawadelhage21@hotmail.com.
authors.forename: Rawad
authors.initials: R
authors.lastname: El Hage
mesh_terms: D015502:Absorptiometry, Photon; D000293:Adolescent; D000328:Adult; D015992:Body Mass Index; D015519:Bone Density; D002136:Calcium, Dietary; D000071556:Cancellous Bone / Q000000981:diagnostic imaging; D004044:Dietary Proteins; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D005272:Femur Neck / Q000737:chemistry* / Q000000981:diagnostic imaging*; D006801:Humans; D035002:Lower Extremity / Q000503:physiopathology; D008297:Male; D008903:Minerals / Q000032:analysis; D053580:Muscle Strength; D009765:Obesity / Q000503:physiopathology*; D010101:Oxygen Consumption; D057185:Sedentary Behavior; D012890:Sleep; D011795:Surveys and Questionnaires; D055815:Young Adult
chemical_list: D002136:Calcium, Dietary; D004044:Dietary Proteins; D008903:Minerals
keywords: Bone strength; clinical tests; muscular strength; obesity