Análise comparativa do pico de consumo de oxigênio entre nadadoras e não nadadoras

 

Emilson Colantonio¹

Ronaldo V. Barros

Maria Augusta Kiss²

 

¹Centro de Estudos em Psicobiologia e Exercício (CEPE), Associação Fundo de Incentivo a Psicofarmacologia (AFIP)

²Laboratório de Determinantes Energéticos de Desempenho Esportivo (LaDESP)

Escola de Educação Física e Esporte, Universidade de São Paulo, Brasil

 

 

RESUMO

Os objetivos do presente estudo foram: a) Comparar a variação dos valores do VO_2pico entre diferentes grupos etários de meninas; b) Comparar a variação dos valores do VO_2pico (absoluto e relativo), entre nadadoras (Nad) e não nadadoras (NNad) para os mesmos agrupamentos de idade. Foram avaliadas 74 meninas entre 7-17 anos de idade (34Nad e 40NNad), distribuídas em grupos etários de 7-10, 11-14 e 15-17 anos, formando 06 subgrupos, respectivamente: Nad1 (n=13); Nad2 (n=12); Nad3 (n=09); NNad1 (n=12); NNad2 (n=14); NNad3 (n=14). Para a obtenção dos valores de VO_2pico foi utilizado o sistema de análise de gases VO2000® e uma esteira rolante Inbrasport ATL®, adotando o protocolo de Bruce adaptado. Os resultados indicaram que houve um aumento do VO_2pico absoluto entre todos os grupos etários tanto para NNad quanto para Nad, o que não foi observado nos valores de VO_2pico relativo, sendo que as Nad sempre apresentaram valores superiores às NNad. Tal fato sugere que esse comportamento seja resultado do desenvolvimento natural das avaliadas além do efeito do treinamento de natação, e ainda, que o VO_2pico relativo pode não ser um indicador interessante para avaliar a aptidão aeróbia de crianças e jovens.

 Palavras-chave: valores metabólicos, crianças e jovens, atletas e não atletas

 

 

ABSTRACT

Comparative analysis between female swimmers and non-swimmers in peak oxygen uptake

The main purpose of the present study was: a) to compare the variation values VO_2peak variation between different female age-groups; b) to compare VO_2peak values (absolute and relative), between female swimmers (Sw) and non-swimmers (NSw) for the same age-group. The sample was composed by seventy four female volunteers, ranging in age from 7 to 17 years (34Sw e 40NSw), and grouped in different ages: 7-10; 11-14; and 15-17 years, making six under groups: three groups composed entirely by female swimmers (Sw1, n=13; Sw2, n=12; Sw3, n=09), and three groups composed by non swimmers (NSw1, n=12; NSw2, n=14; NSw3, n=14), respectively. The VO_2peak values were attained by the VO2000® gas analysis system and Inbrasport ATL® treadmill, using adapted Bruce protocol. The results pointed out an increment on absolute VO_2peak values among the all age-groups considering NSw and Sw groups. The same was not observed for relative VO_2peak values. The Sw always presented higher values in comparison with NSw. These findings suggest that this behavior is a result of natural development of the subjects’ more than swimming training. The results also suggest, that relative VO_2peak can not to be considered a very pertinent to evaluate the aerobic fitness of children and adolescents.

 Key-words: metabolic values, children and adolescents, athletes and non-athletes

 

 

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CORRESPONDÊNCIA

Emilson Colantonio

Rua Marcelo Ribeiro de Mendonça, 27, ap.22, CEP – 11030-210

Ponta da Praia, Santos, SP - Brasil

e-mail: nunoec@uol.com.br