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Não se <strong>de</strong>ve i<strong>de</strong>ntificar força explosiva com potência muscular,<br />

ain<strong>da</strong> que existam algumas relações entre ambas<br />

Carlos Carvalho<br />

Alberto Carvalho<br />

RESUMO<br />

O objectivo <strong>de</strong>ste trabalho é procurar diferenciar a força explosiva<br />

<strong>da</strong> potência muscular. Apesar <strong>de</strong> ambas serem manifestações<br />

<strong>de</strong> força rápi<strong>da</strong>, <strong>de</strong>pen<strong>de</strong>m <strong>de</strong> factores bastante diferentes,<br />

têm características distintas e necessitam <strong>de</strong> meto<strong>do</strong>logias e<br />

méto<strong>do</strong>s específicos e in<strong>de</strong>pen<strong>de</strong>ntes no seu treino e <strong>de</strong>senvolvimento.<br />

Sumariamente, po<strong>de</strong>mos dizer que o treino <strong>de</strong> força<br />

explosiva se <strong>de</strong>ve realizar com cargas máximas e a máxima<br />

veloci<strong>da</strong><strong>de</strong> <strong>de</strong> contracção muscular, para que se garanta uma<br />

suficiente activação nervosa <strong>do</strong>s factores intramusculares<br />

(recrutamento, frequência e <strong>de</strong>scarga <strong>do</strong>s impulsos e sincronismo<br />

<strong>da</strong>s uni<strong>da</strong><strong>de</strong>s motoras). Contrariamente, o treino <strong>da</strong> potência<br />

<strong>de</strong>ve ser realiza<strong>do</strong> com cargas médias, com máxima veloci<strong>da</strong><strong>de</strong><br />

<strong>de</strong> execução <strong>de</strong> um <strong>de</strong>termina<strong>do</strong> gesto, acção e/ou<br />

sequência motora específica. Daí cair fortemente na esfera <strong>do</strong><br />

treino coor<strong>de</strong>nativo ou técnico. Assim se <strong>de</strong>preen<strong>de</strong> que sejamos<br />

<strong>da</strong> opinião <strong>de</strong> que estas duas manifestações <strong>de</strong> força rápi<strong>da</strong><br />

não po<strong>de</strong>m, nem <strong>de</strong>vem, ser i<strong>de</strong>ntifica<strong>da</strong>s como sinónimos <strong>de</strong><br />

uma mesma capaci<strong>da</strong><strong>de</strong> motora.<br />

Palavras-chave: força explosiva, potência muscular, treino <strong>da</strong><br />

força.<br />

Laboratório <strong>do</strong> Movimento Humano<br />

Instituto Superior <strong>da</strong> Maia<br />

Portugal<br />

ABSTRACT<br />

One should not i<strong>de</strong>ntify explosive strength with muscular power<br />

even if some connection can be found between them<br />

The aim of this paper is to search for the difference between explosive<br />

strength and muscular power. In spite of both being expressions of<br />

speed-strength, they <strong>de</strong>pend on very different factors, have distinct<br />

characteristics and need specific and in<strong>de</strong>pen<strong>de</strong>nt methods and metho<strong>do</strong>logies.<br />

To sum it all up, it can be said that explosive strength training<br />

should be <strong>do</strong>ne with maximum loads and the maximum rate of velocity<br />

of muscular contraction so that a sufficient nervous activation can be<br />

achieved in the intramuscular factors (recruitment, firing frequency and<br />

synchronism of nervous stimulus). Contrarily to this, power should be<br />

trained with medium loads but with high speed of execution of any specific<br />

motor action and/or sequences, therefore falling on a more technical<br />

or coordinative training. We can <strong>de</strong>duce from all this that these two<br />

expressions of speed-strength should not be i<strong>de</strong>ntified as synonyms of<br />

the same physical abilities.<br />

Key Words: explosive strength, muscular power, strength training.<br />

Rev Port Cien Desp 6(2) 241–248 241

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