Hi

I too was confused about MMT. I have the book by Kendall which everyone seems to quote but other people contradict that, even my lecturers. I was going to do some kind of reliability test for Serratus Anterior MMT at undergraduate but came to the conclusion that the most importand functions of Serratus are multi-faceted and impossible to test. The manual muscle test that we were shown for Serratus has no relation to upward rotation whatsoever which is normally the faulty movement from what I have read!