Reference Values of Standing Long Jump in Preschool Children: A Population-Based Study.
The purpose of this study was to examine age and sex differences in standing long jump (SLJ) and to determine norm-referenced values for Spanish preschool children.



A total of 3555 children, aged 3-6 years, participated in this study (1746 girls and 1809 boys). To measure explosive leg power, the SLJ was used.



In the analysis of reliability using test-retest with 86 children (48% boys, age = 56.22 ± 10.34 months), the following descriptive results were obtained (mean, SD): at pretest = 76.53 ± 20.20 cm, at retest = 74.56 ± 21.12 cm (p = .124), and an intraclass correlation coefficient = 0.913 (95% confidence interval = 0.866-0.943). Boys exhibited a greater performance than girls at 3- to 5-years old, but no significant differences were found at 6 years old. In whole group, the SLJ performance was higher with increased age. However, no significant differences were found between boys aged 5 and 6 years.



This study provides references values for muscle strength assessment through SLJ test carried out on a large sample of Spanish preschoolers.
1 University of Jaen.
Pedro Ángel
PÁ
Latorre-Román
1 University of Jaen.
Felipe
F
García-Pinillos
David
D
Mora-López
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005080:Exercise Test; D005260:Female; D006801:Humans; D007866:Leg / Q000502:physiology; D008297:Male; D053580:Muscle Strength / Q000502:physiology*; D012016:Reference Values; D015203:Reproducibility of Results; D012737:Sex Factors; D013030:Spain
fitness; health; pediatrics; strength