Uploaded April 2026 | Updated September 2026, 2 weeks ago
In this video, Martin Rios discusses how your rib cage position has a major impact on your gains in the gym. Martin Rios explains ECM and PRI principles and how rib cage position impacts how deep of a stretch muscles get and how it is vital for proper lifting technique and muscle recruitment.
In this video, Martin Rios discusses how your rib cage position has a major impact on your gains in the gym. Martin Rios explains ECM and PRI principles and how rib cage position impacts how deep of a stretch muscles get and how it is vital for proper lifting technique and muscle recruitment.










