ArticleNutrients2024
Isotemporal Substitution Effects of Daily Time Use on Cardiorespiratory Fitness of Children in the OptiChild Study: A Mediation Analysis with Diet Quality.
Article in Nutrients, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Dose-response association between different screen time behaviors and cardiorespiratory fitness among elementary and junior high school students: A population-based cross-sectional study in a Japanese city.Journal of exercise science and fitness · 2026Article
- The discriminating ability of multiple body composition measures in assessing cardiorespiratory fitness in Chinese adolescents aged 12-18.Frontiers in nutrition · 2026Article
- Research characteristics about the 24-h movement behaviors in children and adolescents: a scoping review.BMC public health · 2025Article
- The associations of diet quality and cardiometabolic indicators in children and the mediation role of cardiorespiratory fitness.Frontiers in nutrition · 2025Article
- The association of screen time with childhood obesity and metabolic status: a mediation analysis of cardiorespiratory fitness.Frontiers in endocrinology · 2025Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
(1) Background: Although daily time-use is associated with diet quality and cardiorespiratory fitness (CRF) in children, their interdependence remains unexplored. This study first examined the associations between reallocating daily movement time and diet quality and CRF, and second the mediating role of diet quality in the relationship between daily time-use and CRF. (2) Methods: This study included 1131 Chinese children (aged 8 to 10 years; median [interquartile range]: 8.5 [8.3, 8.8]) at baseline (September 2022) and 1268 children at the 9-month follow-up (June 2023) from the OptiChild study. Daily durations of moderate-to-vigorous physical activity (MVPA), sleep, and sedentary behavior (e.g., screen time) were self-reported or proxy-reported by parents. Diet quality was assessed via the Diet Quality Questionnaire (DQQ), which uses a 24 h dietary recall and is categorized according to the Global Dietary Recommendations (GDR) score and Food Group Diversity Score (FGDS). The CRF was measured using VO
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