Projeto Esporte Brasil: perfil da aptidão física relacionada ao desempenho esportivo de crianças e adolescentes

Abstract

-The aim of this study was to outline the physical fitness profile related to sport performance of Brazilian children and adolescents, stratified by sex. This is a descriptive cross-sectional study and information was obtained from the Projeto Esporte Brasil (PROESP-Br). The sample consisted of 8,750 voluntary subjects aged 7-17 years evaluated in the period between 2013 and 2015. The following variables were evaluated: lower limb strength (LLS) through the horizontal jump test and upper limb strength (ULS) through mediceball pitch, speed through the 20-meter sprint test and agility through the square test. Variables were classified with PROESP-Br criteria. For data processing, means, standard deviations, absolute and relative frequencies and confidence intervals were used. The results for boys have shown that the "poor" category had the highest prevalence: LLS (40.2%), ULS (29.7%), speed (41.4%) and agility (37.5%). The "excellent" category, as expected, had the lowest prevalence: LLS (3.7%), ULS (4.9%), speed (2.0%) and speed (3.5%). The results for girls were similar to those of boys, where the "poor" category had the highest prevalence: LLS (43.7%), ULS (36.8%), speed (43.8%) and agility (41.0 %). The "excellent" category also had the lowest prevalence: LLS (4.2%), ULS (4.3%), speed (1.6%) and speed (3.1%). The results indicated that the majority of Brazilian children and adolescents have physical fitness related to sport performance. Among variables analyzed, LLS for girls and speed for boys were the components with the most unfavorable results.Key words: Athletic performance; Muscle strength; Physical fitness. FMI (40,2%), FMS (29,7%), velocidade (41,4%) e agilidade (37,5%). A categoria "excelente", como era esperado, teve as menores prevalências FMI (3,7%), FMS (4,9%), velocidade (2,0%) e agilidade (3,5%). Os resultados das meninas foram semelhantes aos dos meninos, onde a categoria "fraco" teve a maior prevalência: FMI (43,7%), FMS (36,8%), velocidade (43,8%) Resumo -O objetivo deste estudo é delinear o perfil da aptidão física relacionada ao desempenho esportivo de crianças e adolescentes brasileiros, estratificado por sexo. Trata-se de um estudo descritivo com corte transversal. As informações são provenientes do Projeto Esporte Brasil (PROESP-Br). A amostra é voluntária, constituída por 8.750 sujeitos avaliados no período entre 2013 e 2015 com idades entre 7 e 17 anos. Foram avaliadas: força de membros inferiores (FMI) através do teste de salto horizontal e superiores (FMS) através do arremesso de mediceball, velocidade através do teste corrida de 20 metros e agilidade através do teste quadrado. As variáveis foram classificadas com os critérios do PROESP-Br. Para o tratamento dos dados foram utilizadas médias, desvios padrão, frequências absolutas e relativas e intervalos de confiança. Os resultados dos meninos mostram que a categoria "fraco" teve a maior prevalência:

Diversity of parameters in the muscle strength evaluation of Brazilian school children and adolescents: a systematic review

“…Regarding the location of these studies, it was identified that the Southern and Southeastern regions of Brazil were those that most published articles on MS in children and adolescents, with 18 studies 7-9,12-27 . Regarding the design of included studies, 22 had cross-sectional 3,7-9,14-21, [23][24][25][27][28][29][30][31][32][33][34][35] and five longitudinal design 12,13,22,26,36 (Table 1). The studies covered different primary goals as can be observed in Table 1; however, all of them performed MS measurements as defined in the present study.…”

“…Freitas et al, 35 Montes Claros, MG No study was classified with low methodological quality / high risk of bias. Moderate methodological quality/moderate risk of bias was verified in ten studies (37.0%) 7,12,13,15,19,21,23,26,28,29 , while seventeen studies … continue (67.0%) 3,8,9,14,16,17,20,22,24,25,27,[30][31][32][33]35,36 were classified with high methodological quality / low risk of bias (Table 2). MS was investigated in fourteen different ways.…”

“…MS was investigated in fourteen different ways. HJ was used to identify MS levels in 16 studies 12,13,15,16,[19][20][21]23,27,[29][30][31][32][33]35,36 ; in 15 studies, MS was investigated through HGS 3,8,9,12,15,17,20,22,[24][25][26]28,33,35,36 ; in four studies, vertical jump without the aid of arms (VJWAA) was used to evaluate MS 12,20,22,26 ; in four other studies, TMB was used 16,23,29,30 ; in two studies the isokinetic strength of knee extensors (IFKE) was used as a reference for MS 14,21 ; in two other studies, MS was investigated through vertical jump using arms (VJUA) 14,21 ; the maximal repetition in the horizontal bench press (1MRBP) and a maximal repetition in the leg press (1MRLP) tests were used to measure MS levels in one study 7 ; the tests of a maximal repetition in the extensor table (1MRET) and a maximum repetition in the biceps curl (1MRBC) thread were used in another study…”

“…In addition, the isokinetic strength test of knee flexors (IFKF) was also used 21 (Table 3). Table 4 shows studies that classified MS as adequate or inadequate for health based on some physical test battery 8,9,16,29,30 . Five studies did this type of classification and used three different physical tests (e.g., HJ, TMB and HGS).…”

“…Five studies did this type of classification and used three different physical tests (e.g., HJ, TMB and HGS). Three studies used two different tests in the same sample (e.g., HJ, TMB) 16,29,30 . The physical test batteries PROESP/BR 37 and CSEP 6 were used in these studies.…”