Re: Definitions of Eccentric and Other Terms

[Guest guest]

> I'm probably not on the same page as everyone else here so please

> enlighten me but when talking about definitions of concentric, eccentric and

> isometric I thought they were as follows:

>

> Concentric: Muscle shortens as it contracts.

> Eccentric: Muscle lengthens as it contracts.

> Isometric: Muscle remains at a constant length when it contracts.

Mel Siff commented:

<Objections have often been raised by the use of such definitions

because " contraction " always implies shortening. To overcome this objection, we

can replace the word, " contraction " , with " action " . Thus, " eccentric " refers to

a situation

when muscle length increases during muscle action, etc. >

** I like that - " Action " rather than " contraction " . That seems to make a lot

more sense. Now all we have to do is get about 10,000 text books that are

written on the subject destroyed and rewritten in a way that is more logical

and makes a lot more sense.

Ben Haines

Townsville, Australia