Lesson 9: Rotator Cuff

(and first exercise graph)

by Brent Brookbush DPT, PT, MS, PES, CES, CSCS, ACSM H/FS

Lesson 9: Rotator Cuff Lecture

Study GuideRotator Cuff Quick Reference Study Guide

Note: If you intend to do the activities below do not open the "Study Guide" - all the answers are already filled in.  The study guide is just a quick reference tool, similar to flash cards - great for preparing for an exam.


In this lecture we will be discussing the "Rotator Cuff":


  • rotate (v.) 1794, intransitive, back-formation from rotation. Transitive sense from 1823. Related: Rotated; rotating. Rotator "muscle which allows a part to be moved circularly" is recorded from 1670s. (Etymology Online)
  • cuff (n.) "bottom of a sleeve," mid-14c., cuffe "hand covering, mitten, glove," perhaps somehow from Medieval Latin cuffia "head covering," of uncertain origin. Sense of "band around the sleeve" is first attested 1520s; sense of "hem of trousers" is 1911. (Etymology Online)

The "Rotator Cuff" is actually a group of 4 muscles that originate on the scapula and envelope the humeral head (like a "cuff" on the wrist).  The names of 3 of the muscles are actually the combination

Any Questions or Concerns?