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The Mediating Role of the Muscle Quality Index in the Relation of Screen Time and Abdominal Obesity with Health-Related Quality of Life in Chilean Schoolchildren.
Delgado-Floody, Pedro; Gómez-López, Manuel; Caamaño-Navarrete, Felipe; Valdés-Badilla, Pablo; Jerez-Mayorga, Daniel.
Afiliação
  • Delgado-Floody P; Department of Physical Education, Sport and Recreation, Universidad de La Frontera, Temuco 4811230, Chile.
  • Gómez-López M; Strength & Conditioning Laboratory, CTS-642 Research Group, Department Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18011 Granada, Spain.
  • Caamaño-Navarrete F; Department of Physical Activity and Sport, Faculty of Sports Sciences, University of Murcia, 30720 Murcia, Spain.
  • Valdés-Badilla P; Physical Education Career, Universidad Autónoma de Chile, Temuco 4780000, Chile.
  • Jerez-Mayorga D; Department of Physical Activity Sciences, Faculty of Education Sciences, Universidad Católica del Maule, Talca 3466706, Chile.
Nutrients ; 15(3)2023 Jan 31.
Article em En | MEDLINE | ID: mdl-36771420
Screen time (ST) and abdominal obesity have a negative effect on health-related quality of life (HRQoL). However, there is little information regarding the mediating role of the muscle quality index (MQI) in these relationships. The aim of the present study was to investigate the association between HRQoL, physical status (i.e., anthropometrics and fitness), lifestyle (i.e., ST and physical activity), and the MQI, and then to determine the potential mediating role of the MQI in the relation of ST and abdominal obesity with HRQoL in Chilean schoolchildren. The cross-sectional study included 750 schoolchildren (girls, n = 332 and boys, n = 418) aged between 10 and 14 years (11.73 ± 1.08 y). MQI, lifestyle, fitness parameters, waist-to-height ratio (WtHR) and HRQoL were measured. HRQoL presented a significant correlation with WtHR (r: -0.19), VO2max (r: 0.20), physical activity after school (r: 0.26), ST (r: -0.26) and MQI (r: 0.15). According to MQI, the high-MQI group reported higher HRQoL than the low-MQI group (low MQI: 36.10 ± 3.63 vs. high MQI: 37.43 ± 4.00, p < 0.001). In the mediation model, ST and abdominal obesity were negatively linked to HRQoL; the indirect effect confirmed that MQI is a partial mediator in the relation between ST and HRQoL (indirect effect = -0.04; SE = 0.02; 95% CI: -0.09, -0.01) and in the relation between abdominal obesity and HRQoL (indirect effect = -1.81; SE = 0.83; 95% CI: -3.41, -0.40). In conclusion, MQI is related to better HRQoL in schoolchildren, and the negative relation of ST and abdominal obesity with HRQoL is mediated by MQI.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Qualidade de Vida / Obesidade Abdominal Tipo de estudo: Observational_studies / Prevalence_studies / Risk_factors_studies Aspecto: Patient_preference Limite: Adolescent / Child / Female / Humans / Male País/Região como assunto: America do sul / Chile Idioma: En Revista: Nutrients Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Chile País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Qualidade de Vida / Obesidade Abdominal Tipo de estudo: Observational_studies / Prevalence_studies / Risk_factors_studies Aspecto: Patient_preference Limite: Adolescent / Child / Female / Humans / Male País/Região como assunto: America do sul / Chile Idioma: En Revista: Nutrients Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Chile País de publicação: Suíça