Israel Villarrasa-Sapiña1, Pilar Serra-Añó2, Alberto Pardo-Ibáñez3, Luis-Millán Gonzalez1, Xavier García-Massó4. 1. Departamento de Educación Física y Deporte, Universidad de Valencia, Spain. 2. Departamento de Fisioterapia, Universidad de Valencia, Valencia, Spain. 3. Departamento de Educación Física, Universidad Católica de Valencia, Valencia, Spain. 4. Departamento de didáctica de la expresión musical, plástica y corporal, Universidad de Valencia, Valencia, Spain. Electronic address: xavier.garcia@uv.es.
Abstract
BACKGROUND: Obesity is now a serious worldwide challenge, especially in children. This condition can cause a number of different health problems, including musculoskeletal disorders, some of which are due to mechanical stress caused by excess body weight. The aim of this study was to determine the association between body composition and the vertical ground reaction force produced during walking in obese children. METHODS: Sixteen children participated in the study, six females and ten males [11.5 (1.2) years old, 69.8 (15.5) kg, 1.56 (0.09) m, and 28.36 (3.74) kg/m2 of body mass index (BMI)]. Total weight, lean mass and fat mass were measured by dual-energy X-ray absorptiometry and vertical forces while walking were obtained by a force platform. The vertical force variables analysed were impact and propulsive forces, and the rate of development of both. Multiple regression models for each vertical force parameter were calculated using the body composition variables as input. FINDINGS: The impact force regression model was found to be positively related to the weight of obese children and negatively related to lean mass. The regression model showed lean mass was positively related to the propulsive rate. Finally, regression models for impact and propulsive force showed a direct relationship with body weight. INTERPRETATION: Impact force is positively related to the weight of obese children, but lean mass helps to reduce the impact force in this population. Exercise could help obese persons to reduce their total body weight and increase their lean mass, thus reducing impact forces during sports and other activities.
BACKGROUND: Obesity is now a serious worldwide challenge, especially in children. This condition can cause a number of different health problems, including musculoskeletal disorders, some of which are due to mechanical stress caused by excess body weight. The aim of this study was to determine the association between body composition and the vertical ground reaction force produced during walking in obesechildren. METHODS: Sixteen children participated in the study, six females and ten males [11.5 (1.2) years old, 69.8 (15.5) kg, 1.56 (0.09) m, and 28.36 (3.74) kg/m2 of body mass index (BMI)]. Total weight, lean mass and fat mass were measured by dual-energy X-ray absorptiometry and vertical forces while walking were obtained by a force platform. The vertical force variables analysed were impact and propulsive forces, and the rate of development of both. Multiple regression models for each vertical force parameter were calculated using the body composition variables as input. FINDINGS: The impact force regression model was found to be positively related to the weight of obesechildren and negatively related to lean mass. The regression model showed lean mass was positively related to the propulsive rate. Finally, regression models for impact and propulsive force showed a direct relationship with body weight. INTERPRETATION: Impact force is positively related to the weight of obesechildren, but lean mass helps to reduce the impact force in this population. Exercise could help obesepersons to reduce their total body weight and increase their lean mass, thus reducing impact forces during sports and other activities.
Authors: Tom P Walsh; John B Arnold; Angela M Evans; Alison Yaxley; Raechel A Damarell; E Michael Shanahan Journal: BMC Musculoskelet Disord Date: 2018-07-18 Impact factor: 2.362
Authors: Yihong Zhao; Debin Zheng; Shiyang Yan; Mengyuan Liu; Luming Yang Journal: Int J Environ Res Public Health Date: 2020-09-10 Impact factor: 3.390