Testing the Motor Competence and Health-Related Variable Conceptual Model: A Path Analysis

Area of Science:

• Pediatric Health
• Motor Development
• Physical Activity Research

Background:

• Childhood obesity is a growing concern, necessitating research into factors influencing health-related outcomes.
• Gross motor skills and physical activity are crucial for overall child development and well-being.
• Understanding the interplay between motor skills, physical activity, and health in preadolescents is vital for targeted interventions.

Purpose of the Study:

• To empirically test a comprehensive conceptual model linking gross motor skills, school day physical activity, and health-related variables in sixth graders.
• To examine the mediating roles of perceived competence and cardiorespiratory endurance in the relationship between physical activity and motor skills.
• To validate a model explaining the inter-relationships among motor competence, physical activity, and health outcomes in preadolescent children.

Main Methods:

• Utilized a sample of 84 sixth-grade students (mean age 11.6 years).
• Assessed gross motor skills using the Test of Gross Motor Development-3rd Edition (TGMD-3).
• Measured school day physical activity via pedometers, cardiorespiratory fitness with the Progressive Aerobic Cardiovascular Endurance Run (PACER), perceived competence with a questionnaire, and Body Mass Index (BMI) for health outcomes.

Main Results:

• School day step counts and TGMD-3 scores were mediated by perceived competence and PACER laps (p=0.015).
• A significant direct negative relationship was found between TGMD-3 scores and BMI (b=-0.22 kg/m², p<0.001).
• The conceptual model demonstrated good fit, with all indices meeting acceptable criteria (RMSEA=0.062, CFI=0.98, TLI=0.96, SRMR=0.052).

Conclusions:

• The study empirically validated a comprehensive model linking motor competence, physical activity, and health-related variables in sixth graders.
• Physical activity and gross motor skills are interconnected, with perceived competence and cardiorespiratory endurance acting as significant mediators.
• Findings highlight the importance of developing gross motor skills and promoting physical activity for improving health outcomes, such as lower BMI, in children.