Role of cardiorespiratory fitness on the association between physical activity and abdominal fat content in adolescents: the HELENA study.

We examined the role of cardiorespiratory fitness (CRF) on the association between physical activity (PA) and abdominal fat content in adolescents. Abdominal fat content was measured by waist circumference, waist-to-height ratio and dual energy X-ray absorptiometry (DXA) at 3 regions (R1, R2, and R3...

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Detalles Bibliográficos
Autores: España-Romero, V., Martínez-Gómez, David, Moreno, Luis A.
Tipo de recurso: artículo
Fecha de publicación:2010
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/112824
Acceso en línea:http://hdl.handle.net/10261/112824
Access Level:acceso abierto
Palabra clave:Physical activity
Adolescents
Cardiorespiratory fitness
Abdominal fat content
Descripción
Sumario:We examined the role of cardiorespiratory fitness (CRF) on the association between physical activity (PA) and abdominal fat content in adolescents. Abdominal fat content was measured by waist circumference, waist-to-height ratio and dual energy X-ray absorptiometry (DXA) at 3 regions (R1, R2, and R3). PA and CRF were assessed by accelerometry and the 20 m-shuttle run test, respectively. Vigorous PA was inversely associated with waist circumference and waistto-height ratio ( β from − 0.149 to − 0.197; p < 0.05). In both CRF groups (i. e., low and high), vigorous and moderate-to-vigorous PA (also average PA in the low CRF group) were inversely associated with abdominal fat (i. e., R1, R2 and R3; β from − 0.146 to − 0.244; p < 0.05). This association did not diff er according to CRF group (P for interaction > 0.05), yet the percentage of variance in abdominal fat content, when assessed by DXA, explained by PA was slightly higher in adolescents with low CRF (3 – 8 % ) compared to those with high CRF (2 – 4 % ). The fi ndings indicate that there is not a clear interaction eff ect of CRF in the association between PA and abdominal fat in adolescents, yet slightly stronger association was observed in the low fi t group.