Cristina Cadenas-Sanchez1, Timm Intemann2, Idoia Labayen3, Ana B Peinado4, Josep Vidal-Conti5, Joaquin Sanchis-Moysi6, Diego Moliner-Urdiales7, Manuel A Rodriguez Perez8, Jorge Cañete Garcia-Prieto9, Jorge Del Rosario Fernández-Santos10, Borja Martinez-Tellez11, Germán Vicente-Rodríguez12, Marie Löf13, Jonatan R Ruiz14, Francisco B Ortega14. 1. PROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Spain. Electronic address: cadenas@ugr.es. 2. Leibniz Institute for Prevention Research and Epidemiology - BIPS, Germany. Institute of Statistics, Faculty of Mathematics and Computer Science, University of Bremen, Germany. 3. Department of Health Sciences, Institute for Innovation & Sustainable Development in Food Chain (IS-FOOD), Public University of Navarra, Spain. 4. LFE Research Group, Department of Health and Human Performance, Universidad Politécnica de Madrid, Spain. 5. Department of Education, University of the Balearic Islands, Spain. 6. Department of Physical Education and Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Spain. 7. LIFE reserach group, University Jaume I, Spain. 8. SPORT Research Group (CTS-1024), Area of Physical Education and Sport, University of Almeria, Spain. 9. Universidad de Castilla-La Mancha, Health and Social Research Center, Spain. 10. Department of Physical Education, School of Education, University of Cádiz, Spain. 11. PROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Spain. 12. GENUD "Growth, Exercise, NUtrition and Development" Research Group, Faculty of Health and Sport Science (FCSD). Instituto Agroalimentario de Aragón (IA2). CIBERObn. University of Zaragoza, Spain. 13. Department of Biosciences and Nutrition at NOVUM, Karolinska Institutet. Department of Medical and Health Sciences, Linköping University, Sweden. 14. PROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Spain; Department of Biosciences and Nutrition at NOVUM, Karolinska Institutet. Department of Medical and Health Sciences, Linköping University, Sweden.
Abstract
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.
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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