[Development and validation of children physical activity questionnaire].

Area of Science:

• Pediatric Health
• Exercise Science
• Psychometrics

Background:

• Accurate assessment of physical activity in children is crucial for public health.
• Existing tools may not be suitable for the Chinese pediatric population.
• Development of a culturally relevant and validated questionnaire is needed.

Purpose of the Study:

• To develop and validate the 6-to 17-year-old Chinese children physical activity questionnaire (CCPAQ).
• To establish a reliable instrument for evaluating physical activity in Chinese children aged 6-17 years.

Main Methods:

• Systematic review, expert review, and preliminary investigation informed questionnaire development.
• Factor analyses (exploratory and confirmatory) were conducted using SAS 9.4 and Mplus 8.0.
• A sample of 119 children aged 6-17 from diverse regions of China participated.

Main Results:

• The questionnaire assessed 33 modes and 7 types of physical activity.
• Factor analyses supported a second-order 4-factor model and a first-order 7-factor model.
• Model fit indices (χ²/df = 1.41 and 1.61) indicated acceptable model fit.

Conclusions:

• The developed CCPAQ is an effective tool for measuring physical activity in Chinese children.
• The CCPAQ provides a valid method for assessing physical activity patterns in this age group.