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Title: Validity and reliability of the International fItness scale (IFIS) in preschool children
Authors: Sanchez-Lopez, M
Garcia-Hermoso, A
Ortega, FB
Moliner-Urdiales, D
Labayen, I
Castro-Pinero, J
Benito, PJ
Vicente-Rodriguez, G
Sanchís Moysi, Joaquín 
Cantallops, J
Artero, EG
Martinez-Vizcaino, V
UNESCO Clasification: 3212 Salud pública
241106 Fisiología del ejercicio
Keywords: Abdominal obesity
Physical fitness
Parent report
Issue Date: 2022
Project: PREFIT
Journal: European Journal of Sport Science 
Abstract: Objectives Examine the validity and reliability of parent-reported International FItness Scale (IFIS) in preschoolers. Method A cross-sectional study of 3051 Spanish preschoolers (3–5 years). Fitness was measured by PREFIT battery and reported by parents using an adapted version of the IFIS. Waist circumference was evaluated, and the waist-to-height ratio (WHtR) was calculated. Seventy-six parents of randomly selected schoolchildren completed the IFIS twice for a reliability assessment. Results ANCOVA, adjusted for sex, age and WHtR, showed that preschoolers who were scored by their parents as having average-to-very good fitness had better levels of measured physical fitness than those preschoolers who were classified as having “very poor/poor” fitness levels (18.1laps to 22.1laps vs 15.6laps for cardiorespiratory fitness; 6.6 kg to 7.5 kg vs 5.3 kg for muscular fitness-handgrip-; 71.7 cm to 76.4 cm vs 62.0 cm for muscular fitness-standing long jump-; 17.2s to 16.2s vs 18.2s for speed/agility; and 11.2s to 15.6s vs 8.7s for balance; p < 0.001). The weighted kappa for concordance between parent-reported fitness levels and objective assessment was poor (κ ≤ 0.18 for all fitness measures). Overall, the mean values of the abdominal adiposity indicators were significantly lower in high-level fitness categories reported by parents than in low-level fitness categories (p < 0.05). The test-retest reliability ranged from 0.46 to 0.62.
ISSN: 1746-1391
DOI: 10.1080/17461391.2022.2049884
Source: European Journal of Sport Science [ISSN 1746-1391], 2 mayo 2022
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