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>keep constant tension on a muscle while unrelated muscles move the body to lengthen or shorten it, creating concentric, eccentric, or isometric contractions without momentum or changing leverage

why has no one else thought of this?
>>
Buy a fucking ad faggot
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I think someone has. They even have these places called gyms where one can go practice the very tension-builds live.
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>>77269179
because it fucking doesn't work, hence the guy in the video is a dyel
>>
>>77269220
he just invented it... he is going to be a monster soon



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