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      Low agreement between the fitnessgram criterion references for adolescents


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          To analyze the association and agreement of fitnessgram reference criteria (RC) for cardiorespiratory fitness, body mass index (BMI) and strength in youth.


          The study included 781 youth, 386 females, aged 10 to 18 years of Londrina-PR. It were performed cardiorespiratory fitness and muscular strength tests and was calculated body mass index. The association between the tests was analyzed using Poisson regression to obtain prevalence ratio (PR) and confidence intervals of 95%, while agreement of the reference criteria was tested by Kappa index.


          Significant associations were found between cardiorespiratory fitness and BMI (PR=1,49, 1,27-1,75), muscle strength and BMI (PR=1,55, 1,17-2,08), cardiorespiratory fitness and muscle strength (PR=1,81, 1,47-2,24). The agreement between reference criteria ranged from weak to fair, 48.8% (k=0.05, p=0.10) for cardiorespiratory fitness and BMI, 52.9% (k=0.09, p=0.001) for muscle strength and BMI and 38.4% (k=0.22, p<0.001) for cardiorespiratory fitness and muscle strength.


          Although RC for cardiorespiratory fitness, muscle strength and BMI are associated, the agreement between them ranged from weak to fair. To evaluate health related physical fitness it is suggest the execution of all tests, since each test has specific characteristics.

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          Most cited references 29

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          The Measurement of Observer Agreement for Categorical Data

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            Criterion-related validity of field-based fitness tests in youth: a systematic review.

            The objective of this systematic review was to comprehensively study the criterion-related validity of the existing field-based fitness tests used in children and adolescents. The studies were scored according to the number of subjects, description of the study population and statistical analysis. Each study was classified as high, low and very low quality. Three levels of evidence were constructed: strong evidence, when consistent findings were observed in three or more high quality studies; moderate evidence, when consistent findings were observed in two high quality studies; and limited evidence when consistency of findings and/or the number of studies did not achieve the criteria for moderate. The results of 73 studies (50 of high quality) addressing the criterion-related validity of field-based fitness tests in children and adolescents indicate the following: that there is strong evidence indicating that the 20 m shuttle run test is a valid test to estimate cardiorespiratory fitness, that the hand-grip strength test is a valid measure of musculoskeletal fitness, that skin fold thickness and body mass index are good estimates of body composition, and that waist circumference is a valid measure to estimate central body fat. Moderate evidence was found that the 1-mile run/walk test is a valid test to estimate cardiorespiratory fitness. A large number of other field-based fitness tests presented limited evidence, mainly due to a limited number of studies (one for each test). The results of the present systematic review should be interpreted with caution due to the substantial lack of consistency in reporting and designing the existing validity studies.
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              Associations of maximal strength and muscular endurance test scores with cardiorespiratory fitness and body composition


                Author and article information

                Rev Paul Pediatr
                Rev Paul Pediatr
                Revista Paulista de Pediatria
                Sociedade de Pediatria de São Paulo
                June 2015
                June 2015
                : 33
                : 2
                : 181-186
                [a ] Instituto Federal de Educação, Ciência e Tecnologia de São Paulo (IFSP), Boituva, SP, Brazil
                [b ] Universidade Estadual de Londrina (UEL), Londrina, PR, Brazil
                [a ] Instituto Federal de Educação, Ciência e Tecnologia de São Paulo (IFSP), Boituva, SP, Brasil
                [b ] Universidade Estadual de Londrina (UEL), Londrina, PR, Brasil
                Author notes
                *Corresponding author. E-mail: diogohcc@ 123456yahoo.com.br (D.H.C. Coledam).

                Conflicts of interest The authors declare no conflicts of interest.

                *Autor para correspondência. E-mail: diogohcc@ 123456yahoo.com.br (D.H.C. Coledam).

                Conflitos de interesse Os autores declaram não haver conflitos de interesse.


                This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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