fasciaUnderstand the area
A university exercise handout describes a ball against the chest at a wall. Its pectoral label describes a region; it does not show that pressure selectively reaches pectoralis minor beneath the larger chest muscle. Treat positioning instructions and claims about lasting change as separate questions.
Context & cautionsKeep pressure off the sternum, ribs, collarbone, breast tissue and armpit. New or unexplained chest pain needs medical assessment rather than a massage experiment.
Explore the available setups
These guides describe regional contact. Their names do not demonstrate selective treatment of each structure listed below.
Sources & further reading
University of Winnipeg — Upper-body mobility and self-release ↗Source-linked educational summary · Updated November 8, 2026 · No individual clinician review