Issue link: https://www.massageandbodyworkdigital.com/i/1496639
L i s te n to T h e A B M P Po d c a s t a t a b m p.co m /p o d c a s t s o r w h e reve r yo u a cce s s yo u r favo r i te p o d c a s t s 45 I believe that adopting these terminology changes will allow for a simpler yet more profound understanding of muscle function. And this will promote greater critical reasoning that will allow us to be empowered to creatively apply our hands-on assessment and treatment skill sets, thereby becoming more effective therapists. Note 1. A muscle can create a cardinal-plane movement if its one line of pull is within that cardinal plane, or if the muscle has multiple lines of pull, with one or more of its lines of pull being within a cardinal plane. But the typical muscle has one line of pull, and that line of pull is within an oblique plane, so when it concentrically contracts, it must create the oblique-plane movement; it cannot create the separate cardinal-plane component joint actions. Dr. Joe Muscolino has been a manual and movement therapy educator for more than 35 years. He has created several online streaming subscription platforms for manual therapy continuing education, including LearnMuscles Continuing Education with more than 3,300 video lessons and more than 320 hours of NCBTMB credit. He has also created Massage Therapy—Master Online Curriculum, a full online curriculum for massage therapy schools. He is the author of multiple textbooks with Elsevier and has authored more than 90 articles. For more information on any of Dr. Joe's content, visit learnmuscles.com. To contact Dr. Joe directly, you can reach him at joseph.e.muscolino@gmail.com. WHERE DO WE GO FROM HERE? For naming muscle attachments, my goal would be to eliminate the automatic designation of origin/insertion terminology. Instead, name them by their location: proximal/distal, superior/inferior, medial/ lateral, anterior/posterior, etc. (or even perhaps combine these terms to name attachments as superomedial to inferolateral, posterolateral to anteromedial, etc.). If we continue with the use of the terms origin and insertion, we do so only when we are examining a specific kinesiologic circumstance in which we want to name which attachment in that scenario is fixed/ stable and which one is mobile/moving. As for joint action terminology? I realize this becomes more problematic to entirely jettison this terminology. I recommend we begin the description of the function of a muscle by first stating its motion pattern, which will likely be an oblique-plane motion pattern; for example, f lexoadduction for the coracobrachialis and abductof lexion for the supraspinatus. Then, after exploring the oblique-plane motion pattern, lay out a list of the cardinal-plane component joint actions that comprise it. This way, it is clear to the reader that joint actions are simply components of a larger oblique-plane motion pattern for the muscle. And when the motion pattern for a muscle is simply a cardinal-plane motion, such as the brachialis muscle whose function is to f lex the elbow joint, which is a pure sagittal-plane motion, then state that its motion pattern is a cardinal-plane joint action. terminology affects how we perform manual therapy assessment and treatment skill sets. My point is that using cardinal- plane joint actions as the terminology to describe muscle function is problematic and leads many students and experienced therapists to have a rigid and inappropriate understanding of how muscle function works, and, therefore, ineffective applications of this understanding to manual and movement therapy skill sets, with possible adverse effects for our clients. Stretching the supraspinatus is best accomplished by bringing the arm into adduction and extension. Muscle Contractions The function of musculature is to contract. Concentric contractions are shortening functions of a muscle that cause movement of one or both of the muscle's attachments. Eccentric contractions are lengthening contractions that slow down/modify movement caused by another force, usually gravity; and isometric contractions are same-length contractions that by virtue of not changing their length, help to stabilize an attachment of another muscle so that the other attachment of that other muscle can move more efficiently. 12