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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Is Self-Reported Physical Fitness Useful for Estimating Fitness Levels in Children and Adolescents? A Reliability and Validity Study

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Author(s):
Ferreira De Moraes, Augusto Cesar [1, 2, 3] ; Vilanova-Campelo, Regina Celia [3, 4] ; Torres-Leal, Francisco Leonardo [3] ; Carvalho, Heraclito Barbosa [1, 2]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Sch Publ Hlth, BR-01246904 Sao Paulo - Brazil
[2] Univ Sao Paulo, Dept Epidemiol, BR-01246904 Sao Paulo - Brazil
[3] Univ Sao Paulo, YCARE Youth Child cArdiovasc Risk & Environm Res, Fac Med, BR-01246903 Sao Paulo - Brazil
[4] Univ Fed Piaui, Dept Biophys & Physiol, DOMEN Metab Dis Exercise & Nutr Res Grp, BR-64049550 Teresina - Brazil
Total Affiliations: 4
Document type: Journal article
Source: MEDICINA-LITHUANIA; v. 55, n. 6 JUN 2019.
Web of Science Citations: 1
Abstract

Background and objective: The assessment of physical fitness has become a necessary issue in epidemiological studies, since a reduction in fitness is directly associated with early mortality. Therefore, the development of simple, accurate, and inexpensive methods is necessary to measure physical fitness. This study aimed to determine the reliability and validity of the criteria and constructs of the International Fitness Scale (IFIS), Portuguese version, in Brazilian pediatric populations. Methods: A total of 190 children aged 3-10 years and 110 adolescents aged 11-17 years were enrolled in an observational study of reliability and validity. For reliability, the participants completed a questionnaire twice (with an interval of 15 days). To test the criterion validity, we analyzed the agreement between the questionnaire and physical tests (20-m shuttle run test, handgrip strength, standing long jump tests, 4 x 10-m shuttle run test, and back-saver sit and reach test), and the construct validity was estimated by agreement between the questionnaire and high blood pressure. The reliability was analyzed by kappa coefficients. The agreement between the testing and retesting of the questionnaire was evaluated by kappa coefficients. We applied a 2 x 2 table to estimate the specificity, sensitivity, and accuracy of the questionnaire. Results: The mean age of the children was 6.7 years (n = 190), and for the adolescents it was 14.6 years (n = 110). The questionnaire reliability showed an almost perfect score (kappa >= 0.93 in children and kappa >= 0.88 in adolescents). The questionnaire showed moderate criterion validity (kappa >= 0.40 in children and adolescents) as well as moderate construct validity (kappa >= 0.40) in the components of general conditioning, cardiorespiratory capacity, muscular strength, and speed/agility in children and in the components of cardiorespiratory capacity, muscle strength, and speed/agility in adolescents. The questionnaire was a sensitive method for measuring physical fitness. Conclusions: The Portuguese version of the IFIS is a reliable and valid method for measuring physical fitness in pediatric populations. (AU)

FAPESP's process: 17/20317-0 - New frontiers in pediatric nutritional and cardiovascular health: methods development to assess the double burden of malnutrition and ideal cardiovascular health in low-in-middle income countries - SAYCARE cohort study
Grantee:Augusto César Ferreira de Moraes
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 19/02617-1 - New frontiers in pediatric nutritional and cardiovascular health: Methods development to assess the double burden of malnutrition and ideal cardiovascular health in low-in-middle income countries - SAYCARE Cohort Study
Grantee:Augusto César Ferreira de Moraes
Support type: Scholarships in Brazil - Young Researchers
FAPESP's process: 14/11468-6 - Design and implementation of the SAYCARE Study: South American Youth/Child Cardiovascular and Environmental Study
Grantee:Heraclito Barbosa de Carvalho
Support type: Regular Research Grants