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Physical fitness reference standards for preschool children: The PREFIT project
Cristina Cadenas-Sanchez1, Timm Intemann2, Idoia Labayen3
1PROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Spain.
Insights
This study establishes physical fitness reference standards for Spanish preschool children, revealing that boys generally outperform girls, with differences widening by age. These benchmarks aid in identifying fitness levels and tracking changes in young children.
Area of Science:
- Pediatric exercise science
- Child development
- Public health screening
Background:
- Establishing physical fitness reference values is crucial for child health screening and non-communicable disease prevention.
- Existing fitness standards primarily cover children aged 6 and older, leaving a gap for preschool-aged populations.
- Preschool years are a critical period for growth and development, influencing long-term health trajectories.
Purpose of the Study:
- To establish sex- and age-specific physical fitness reference standards for Spanish preschool children.
- To investigate sex differences in physical fitness across the preschool age range (2.8–6.4 years).
- To characterize the evolution of physical fitness performance throughout the preschool period.
Main Methods:
- A cross-sectional study design was employed.
- Data were collected from 3179 Spanish preschool children (1678 boys).
- Physical fitness was assessed using the PREFIT (Physical Education and Fitness) battery.
Main Results:
- Age- and sex-specific percentiles for various physical fitness components were generated.
- Boys demonstrated superior performance compared to girls in cardiorespiratory fitness, muscular strength, and speed-agility tests.
- Girls exhibited slightly better performance in balance tests, and older children consistently outperformed younger children across all fitness measures.
Conclusions:
- The study provides essential age- and sex-specific physical fitness reference standards for preschool children.
- Sexual dimorphism in physical fitness is evident from preschool age and increases with age.
- These findings support health, sport, and educational professionals in assessing and monitoring preschool children's fitness levels.
Objectives:
Reference values are necessary for classifying children, for health screening, and for early prevention as many non-communicable diseases aggravate during growth and development. While physical fitness reference standards are available in children aged 6 and older, such information is lacking in preschool children. Therefore, the purposes of this study were (1) to provide sex-and age-specific physical fitness reference standards for Spanish preschool children; and (2) to study sex differences across this age period and to characterise fitness performance throughout the preschool period.
Design:
Cross-sectional.
Methods:
A total of 3179 preschool children (1678 boys) aged 2.8-6.4 years old from Spain were included in the present study. Physical fitness was measured using the PREFIT battery.
Results:
Age- and sex-specific percentiles for the physical fitness components are provided. Boys performed better than girls in the cardiorespiratory fitness, muscular strength, and speed-agility tests over the whole preschool period studied and for the different percentiles. In contrast, girls performed slightly better than boys in the balance test. Older children had better performance in all fitness tests than their younger counterparts.
Conclusions:
Our study provides age- and sex-specific physical fitness reference standards in preschool children allowing interpretation of fitness assessment. Sexual dimorphism in fitness tests exists already at preschool age, and these differences become larger with age. These findings will help health, sport, and school professionals to identify preschool children with a high/very low fitness level, to examine changes in fitness over time, and to analyse those changes obtained due to intervention effects.
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