What is another word for focus of contraction?
Pronunciation: [fˈə͡ʊkəs ɒv kəntɹˈakʃən] (IPA) 
The term "focus of contraction" refers to the part of a muscle that is actively contracting during a particular movement or activity. Synonyms for this term include "active zone," "concentrated area," "working area," and "targeted region." These synonyms emphasize the concept of a specific area within a muscle that is being used to produce force or movement. Other phrases that convey a similar idea include "point of tension" and "site of muscular effort." Understanding the focus of contraction is integral to properly engaging and strengthening specific muscle groups during exercise, as well as to rehabilitating injuries and improving overall athletic performance.
