Perhaps it should be called long muscle insertion points vs short muscle insertion points, or perhaps "short tendon insertion" or "long tendon insertion". But that opens up another kettle of fish when explaining to people. "Deep" (in place of long) and "Short" work best when writing for the muscle mags.
Anyway -
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"Bob Cicherillo shows off a large arm, and sexy armpit after a brutal workout with John Parillo aimed at stretching his insertion points. While you can't help a deep insertion vs a short insertion, stretching may help" -

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