arcanummI got this wrong too, but I think the exercise of internal rotation makes sense because it will isolate the muscle (without assistance by teres minor for adduction).+32019-12-16T03:57:59Z
tiredofstudyingThe subscapularis assists in medial (internal) rotation and adduction, but the teres minor also assists in adduction, so the best choice to isolate the subscapularis would be internal (medial) rotation. Choice E+2020-01-25T21:15:42Z
thotcandy@tiredofstudying teres major also internally rotates so it wouldn't really be isolated either.
I guess Tmajor isn't relevant cuz it's not a SITS muscle? Still a stupid question. +2020-02-06T03:01:32Z
smc213probably because the subscapularis m. is the only SITS muscle that does internal rotation & adduction along with the teres minor m. action being adduction & external rotation.+12019-07-12T01:56:13Z
thotcandyteres major also internally rotates? It's attached to the medial lip of the humerus+12020-02-06T03:03:12Z