Construct validity and test-retest reliability of the International Fitness Scale (IFIS) in Colombian children and adolescents aged 9-17.9 years

The FUPRECOL study

Robinson Ramírez-Vélez, Sandra Milena Cruz-Salazar, Myriam Martínez, Eduardo L. Cadore, Alicia M. Alonso-Martinez, Jorge E. Correa-Bautista, Mikel Izquierdo, Francisco B. Ortega, Antonio García-Hermoso

Resultado de la investigación: Contribución a RevistaArtículo

3 Citas (Scopus)

Resumen

Background. There is a lack of instruments and studies written in Spanish evaluating physical fitness, impeding the determination of the current status of this important health indicator in the Latin population, especially in Colombia. The aim of the study was two-fold: to examine the validity of the International Fitness Scale (IFIS) with a population-based sample of schoolchildren from Bogota, Colombia and to examine the reliability of the IFIS with children and adolescents from Engativa, Colombia. Methods. The sample comprised 1,873 Colombian youths (54.5% girls) aged 9- 17.9 years. We measured their adiposity markers (waist-to-height ratio, skinfold thickness, percentage of body fat and body mass index), blood pressure, lipids profile, fasting glucose, and physical fitness level (self-reported and measured). A validated cardiometabolic risk index score was also used. An age- and sex-matched subsample of 229 schoolchildren who were not originally included in the sample completed the IFIS twice for reliability purposes. Results. Our data suggest that both measured and self-reported overall physical fitness levels were inversely associated with percentage of body fat indicators and the cardiometabolic risk index score. Overall, schoolchildren who self-reported "good" or "very good" fitness had better measured fitness levels than those who reported "very poor/poor" fitness (all p<0:001). The test-retest reliability of the IFIS items was also good, with an average weighted kappa of 0.811. Discussion. Our findings suggest that self-reported fitness, as assessed by the IFIS, is a valid, reliable, and health-related measure. Furthermore, it can be a good alternative for future use in large studies with Latin schoolchildren from Colombia.

Idioma originalEnglish (US)
Número de artículoe3351
PublicaciónPeerJ
Volumen5
DOI
EstadoPublished - may 23 2017
Publicado de forma externa

Huella dactilar

Colombia
school children
physical fitness
Reproducibility of Results
Physical Fitness
Fats
Health
body fat
Adipose Tissue
Blood pressure
testing
Health Status Indicators
Skinfold Thickness
Fat Body
skinfold thickness
Adiposity
adiposity
health status
sampling
Population

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Citar esto

Ramírez-Vélez, R., Cruz-Salazar, S. M., Martínez, M., Cadore, E. L., Alonso-Martinez, A. M., Correa-Bautista, J. E., ... García-Hermoso, A. (2017). Construct validity and test-retest reliability of the International Fitness Scale (IFIS) in Colombian children and adolescents aged 9-17.9 years: The FUPRECOL study. PeerJ, 5, [e3351]. https://doi.org/10.7717/peerj.3351
Ramírez-Vélez, Robinson ; Cruz-Salazar, Sandra Milena ; Martínez, Myriam ; Cadore, Eduardo L. ; Alonso-Martinez, Alicia M. ; Correa-Bautista, Jorge E. ; Izquierdo, Mikel ; Ortega, Francisco B. ; García-Hermoso, Antonio. / Construct validity and test-retest reliability of the International Fitness Scale (IFIS) in Colombian children and adolescents aged 9-17.9 years : The FUPRECOL study. En: PeerJ. 2017 ; Vol. 5.
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abstract = "Background. There is a lack of instruments and studies written in Spanish evaluating physical fitness, impeding the determination of the current status of this important health indicator in the Latin population, especially in Colombia. The aim of the study was two-fold: to examine the validity of the International Fitness Scale (IFIS) with a population-based sample of schoolchildren from Bogota, Colombia and to examine the reliability of the IFIS with children and adolescents from Engativa, Colombia. Methods. The sample comprised 1,873 Colombian youths (54.5{\%} girls) aged 9- 17.9 years. We measured their adiposity markers (waist-to-height ratio, skinfold thickness, percentage of body fat and body mass index), blood pressure, lipids profile, fasting glucose, and physical fitness level (self-reported and measured). A validated cardiometabolic risk index score was also used. An age- and sex-matched subsample of 229 schoolchildren who were not originally included in the sample completed the IFIS twice for reliability purposes. Results. Our data suggest that both measured and self-reported overall physical fitness levels were inversely associated with percentage of body fat indicators and the cardiometabolic risk index score. Overall, schoolchildren who self-reported {"}good{"} or {"}very good{"} fitness had better measured fitness levels than those who reported {"}very poor/poor{"} fitness (all p<0:001). The test-retest reliability of the IFIS items was also good, with an average weighted kappa of 0.811. Discussion. Our findings suggest that self-reported fitness, as assessed by the IFIS, is a valid, reliable, and health-related measure. Furthermore, it can be a good alternative for future use in large studies with Latin schoolchildren from Colombia.",
author = "Robinson Ram{\'i}rez-V{\'e}lez and Cruz-Salazar, {Sandra Milena} and Myriam Mart{\'i}nez and Cadore, {Eduardo L.} and Alonso-Martinez, {Alicia M.} and Correa-Bautista, {Jorge E.} and Mikel Izquierdo and Ortega, {Francisco B.} and Antonio Garc{\'i}a-Hermoso",
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Ramírez-Vélez, R, Cruz-Salazar, SM, Martínez, M, Cadore, EL, Alonso-Martinez, AM, Correa-Bautista, JE, Izquierdo, M, Ortega, FB & García-Hermoso, A 2017, 'Construct validity and test-retest reliability of the International Fitness Scale (IFIS) in Colombian children and adolescents aged 9-17.9 years: The FUPRECOL study', PeerJ, vol. 5, e3351. https://doi.org/10.7717/peerj.3351

Construct validity and test-retest reliability of the International Fitness Scale (IFIS) in Colombian children and adolescents aged 9-17.9 years : The FUPRECOL study. / Ramírez-Vélez, Robinson; Cruz-Salazar, Sandra Milena; Martínez, Myriam; Cadore, Eduardo L.; Alonso-Martinez, Alicia M.; Correa-Bautista, Jorge E.; Izquierdo, Mikel; Ortega, Francisco B.; García-Hermoso, Antonio.

En: PeerJ, Vol. 5, e3351, 23.05.2017.

Resultado de la investigación: Contribución a RevistaArtículo

TY - JOUR

T1 - Construct validity and test-retest reliability of the International Fitness Scale (IFIS) in Colombian children and adolescents aged 9-17.9 years

T2 - The FUPRECOL study

AU - Ramírez-Vélez, Robinson

AU - Cruz-Salazar, Sandra Milena

AU - Martínez, Myriam

AU - Cadore, Eduardo L.

AU - Alonso-Martinez, Alicia M.

AU - Correa-Bautista, Jorge E.

AU - Izquierdo, Mikel

AU - Ortega, Francisco B.

AU - García-Hermoso, Antonio

PY - 2017/5/23

Y1 - 2017/5/23

N2 - Background. There is a lack of instruments and studies written in Spanish evaluating physical fitness, impeding the determination of the current status of this important health indicator in the Latin population, especially in Colombia. The aim of the study was two-fold: to examine the validity of the International Fitness Scale (IFIS) with a population-based sample of schoolchildren from Bogota, Colombia and to examine the reliability of the IFIS with children and adolescents from Engativa, Colombia. Methods. The sample comprised 1,873 Colombian youths (54.5% girls) aged 9- 17.9 years. We measured their adiposity markers (waist-to-height ratio, skinfold thickness, percentage of body fat and body mass index), blood pressure, lipids profile, fasting glucose, and physical fitness level (self-reported and measured). A validated cardiometabolic risk index score was also used. An age- and sex-matched subsample of 229 schoolchildren who were not originally included in the sample completed the IFIS twice for reliability purposes. Results. Our data suggest that both measured and self-reported overall physical fitness levels were inversely associated with percentage of body fat indicators and the cardiometabolic risk index score. Overall, schoolchildren who self-reported "good" or "very good" fitness had better measured fitness levels than those who reported "very poor/poor" fitness (all p<0:001). The test-retest reliability of the IFIS items was also good, with an average weighted kappa of 0.811. Discussion. Our findings suggest that self-reported fitness, as assessed by the IFIS, is a valid, reliable, and health-related measure. Furthermore, it can be a good alternative for future use in large studies with Latin schoolchildren from Colombia.

AB - Background. There is a lack of instruments and studies written in Spanish evaluating physical fitness, impeding the determination of the current status of this important health indicator in the Latin population, especially in Colombia. The aim of the study was two-fold: to examine the validity of the International Fitness Scale (IFIS) with a population-based sample of schoolchildren from Bogota, Colombia and to examine the reliability of the IFIS with children and adolescents from Engativa, Colombia. Methods. The sample comprised 1,873 Colombian youths (54.5% girls) aged 9- 17.9 years. We measured their adiposity markers (waist-to-height ratio, skinfold thickness, percentage of body fat and body mass index), blood pressure, lipids profile, fasting glucose, and physical fitness level (self-reported and measured). A validated cardiometabolic risk index score was also used. An age- and sex-matched subsample of 229 schoolchildren who were not originally included in the sample completed the IFIS twice for reliability purposes. Results. Our data suggest that both measured and self-reported overall physical fitness levels were inversely associated with percentage of body fat indicators and the cardiometabolic risk index score. Overall, schoolchildren who self-reported "good" or "very good" fitness had better measured fitness levels than those who reported "very poor/poor" fitness (all p<0:001). The test-retest reliability of the IFIS items was also good, with an average weighted kappa of 0.811. Discussion. Our findings suggest that self-reported fitness, as assessed by the IFIS, is a valid, reliable, and health-related measure. Furthermore, it can be a good alternative for future use in large studies with Latin schoolchildren from Colombia.

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