Relação entre a velocidade, a agilidade e a potência muscular de futebolistas profissionais

 

António N. Rebelo

José Oliveira

Faculdade de Desporto, Universidade do Porto, Portugal

 

RESUMO

A velocidade, agilidade e a potência muscular são qualidades importantes para a performance física do futebolista. No presente estudo, avaliou-se o desempenho de futebolistas em testes de terreno e de laboratório para as referidas capacidades e determinou-se a força de associação entre elas.

Foram avaliados 23 futebolistas profissionais participantes na Super Liga de Futebol Portuguesa, aos quais foram aplicados os seguintes testes: velocidade em 15m (V15), velocidade em 35m (V35), agilidade (AGI) e potência máxima(MP) em dinamómetro isocinético (Biodex - System 3 , NY, USA). A força de associação entre as medidas dos testes V15, V35 e AGI revelou ser moderadamente elevada a elevada (r=0,60 a 0,86). A MP dos músculos extensores e flexores do joelho mostrou uma correlação moderada com a performance no V15 e no AGI, mas apenas na velocidade angular mais alta (6.28 rad.s^-1). Os resultados do presente trabalho sugerem que a MP é fundamental para o desempenho nos testes V15 e AGI. A determinação da MP em dinamómetro isocinético deve ser obtida em velocidades angulares tão elevadas quanto o instrumento o possibilite. Finalmente, embora os testes não se substituam uns aos outros, os testes V15 e AGI estarão mais próximos nos atributos que cada um deles avalia.

Palavras-chave: futebol, velocidade, agilidade, potência muscular

 

ABSTRACT

Association between speed, agility and muscular power of pro soccer players.

Speed, agility and muscle power are important physical abilities for soccer player performance. The aim of this study was to evaluate the above-mentioned abilities and to determine the power of association between them, using the results obtained by soccer players in field and laboratory tests.Twenty three professional soccer players participating in Portuguese First League were evaluated in the following tests: 15m sprint test (V15), 35m sprint test (V35), agility (AGI) and isokinetic strength test (Biodex – System 3, NY, USA) from which maximal power (MP) was estimated.

The power of association between V15, V35 and AGI was moderate high to high (r= 0,60 to 0,86). MP of knee extensors and flexors muscles was found to correlate moderately with the performance in V15 and AGI, but only at higher angular velocities (6.28 rad.s^-1).

The results of the present study suggest that MP has an important contribution to V15 and AGI performance. MP evaluation in isokinetic dynamometers must be determined at high angular velocities. Finally, although the tests couldn’t be used interchangeably, V15 and AGI seem to have many attributes in common.

Key-words: soccer, speed, agility, muscle power

 

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CORRESPONDÊNCIA

António Rebelo

Faculdade de Desporto, Universidade do Porto

Rua Dr. Plácido Costa, 91

4200-450 Porto, Portugal