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Types and Frequencies of Physical Activity Associated with Physical Fitness in Chinese Children and Adolescents: A

Linjie Wei1, Zhe Li2, Yuliang Sun3

  • 1School of Physical Education, Xi'an University of Architecture and Technology, Xi'an 710055, China.

Healthcare (Basel, Switzerland)
|October 16, 2025
PubMed

Insights

Regularly engaging in moderate-to-vigorous physical activity (MVPA), muscle-strengthening exercise (MSE), and organized sports and physical activity (OSPA) boosts fitness in Chinese youth. Reducing sedentary time is also crucial for improving children's physical fitness.

Area of Science:

  • Pediatric Public Health
  • Sports Science
  • Exercise Physiology

Background:

  • Youth sedentary behavior and declining physical activity (PA) present significant public health challenges.
  • Limited data exists on the impact of diverse PA types on physical fitness in Chinese children.
  • PA indicators were classified using the Global Matrix 4.0 framework.

Purpose of the Study:

  • To determine which PA types and frequencies, per the Global Matrix 4.0, correlate most strongly with physical fitness in Chinese youth.
  • Investigate the association between various physical activity modalities and fitness levels.
  • Identify key PA behaviors for promoting physical fitness in adolescents.

Main Methods:

  • Analysis of data from 102,942 Chinese children aged 9-18.
  • Descriptive statistics and Chi-square tests for demographic and PA/fitness rates.
  • Binary logistic regression with adjustments for covariates and school-level clustering.

Main Results:

  • Higher frequencies of moderate-to-vigorous physical activity (MVPA), muscle-strengthening exercise (MSE), and organized sports and physical activity (OSPA) were significantly linked to better physical fitness (p < 0.001).
  • Organized sports and physical activity (OSPA) (OR = 1.23) and muscle-strengthening exercise (MSE) (OR = 1.21) demonstrated the strongest positive associations with fitness.
  • Increased sedentary behavior showed a significant negative association with physical fitness (p < 0.001).

Conclusions:

  • Consistent participation in MVPA, MSE, and OSPA, coupled with decreased sedentary time, is vital for enhancing physical fitness in Chinese children and adolescents.
  • Public health policies should encourage varied and sustained engagement in physical activities.
  • Promoting diverse physical activity types is key to improving youth fitness outcomes.

Keywords:
adolescentschildrenphysical activityphysical fitnesssedentary behavior

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