Originally posted by twinkletoes
Mike,
I think you need to distinguish between "necessary" and "excessive" muscular tension.
Certainly SOME tension is needed to move the muscle. That is how the body operates.
I realize that you are speaking of "excessive" tension, which saps energy and is counterproductive, but we are merely discussing strength. Strength is the product of muscular tension, on a strictly anatomical level.
While you have mentioned back up mass and weight, this is also important. It will cut down on the required strength, OR it will serve to create a greater response coupled WITH strength. It depends what we are talking about.
Imagine an individual executing an armlock on you. If that individual had NO strength, would the armlock hurt you? I doubt it. Even with a proper understanding of the mechanics, some base level of strength must be used to hold the arm, to straighten the body, and to hold the rest of the body in place.
Imagine being punched by someone with no strength. Would that injure you, even if they had back-up mass and good mechanics? Again, I doubt it.
I want to strike a distinction here between the muscular tension used in producing "strength" and excess muscular tension. I agree with you wholeheartedly that excess tension is a bad thing. However, we need to be able to discuss "tension" in a muscle as a physiological phenomenon, in addition to the case when someone is "overly tense."
~TT