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1.
Pediatr Exerc Sci ; : 1-8, 2024 Feb 01.
Article in English | MEDLINE | ID: mdl-38307014

ABSTRACT

PURPOSE: The aim of this study was to evaluate the performance of healthy Chilean children aged 3-10 years in the 6-minute walking test (6MWT) and cardiometabolic risk variables and to determine sex- and age-specific reference values. METHODS: This study involved 1165 healthy children (age = 6.36 [1.70] y old). The 6MWT was used to evaluate exercise performance. Furthermore, anthropometric measures were collected, like weight, height, body mass index, waist circumference, and skin folds. Resting heart rate and blood pressure (BP) were also evaluated. RESULTS: The prevalence of overweight and obesity was 35.0% and 25.4% in preschoolers and 29.0% and 36.2% in school-age children, respectively, showing significant differences (P < .05) between age groups. The distance walked (6-min walk distance) increased significantly year on year at ages from 3 to 10 years. According to the regression analysis, 6MWT performance was positively related to age, systolic BP, and height, whereas it was negatively related to ∑4 skinfold fat, resting heart rate, diastolic BP, and waist circumference. CONCLUSIONS: This study provides a reference equation and an age- and sex-adjusted percentile curve to assess the predicted 6MWT performance in a cohort of prepubertal Chilean children. The 6-minute walk distance depends mainly on age; however, other variables, such as resting heart rate, BP, skinfold fat, and waist circumference, add significant information and should be taken into account.

2.
Phys Ther Sport ; 26: 1-6, 2017 Jul.
Article in English | MEDLINE | ID: mdl-28499192

ABSTRACT

OBJECTIVE: The purpose of this study was to examine the influence of age, sex and anthropometric variables in handgrip strength and to determine norm-referenced values for preschool children. DESIGN: Cross-sectional study. SETTING: Schools. PARTICIPANTS: A total of 1215 children, aged 3-6 years (590 girls and 625 boys). INTERVENTION: Not applicable. MAIN OUTCOME MEASURES: Handgrip strength (HS), measured by the CAMRY hydraulic hand dynamometer (EH101; Camry, Guangdong Province, China). RESULTS: Boys exhibited a greater performance than girls in the 4 and 5 years age groups, but no significant differences were found at 3 and 6 years. In relation to growth, HS performance was greater with increased age. The Pearson correlation analysis showed significant correlations between HS and body mass (r = 0.354, p < 0.001), body height (r = 0.352, p < 0.001), body mass index (r = 0.164, p < 0.001) and waist circumference (r = 0.118, p < 0.001). CONCLUSION: This study provides references values for muscular strength assessment by an HS test carried out on a large sample of preschoolers in relation to age and sex. Additionally, some differences in HS performance were found according to sex.


Subject(s)
Anthropometry , Child Development , Hand Strength , Age Factors , Body Height , Body Mass Index , Child , Child, Preschool , Cross-Sectional Studies , Female , Humans , Male , Muscle Strength Dynamometer , Reference Values , Reproducibility of Results , Sex Factors , Waist Circumference
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