
09/05/2025
September Pilates Theme: The Posterior Oblique System (POS)
The Posterior Oblique Subsystem (POS) is a functional muscle group that plays a crucial role in stabilizing the spine, sacroiliac joint (SIJ), and hips, while also facilitating force transfer between the lower and upper extremities. It's a key component of movement, particularly in activities like walking, running, and rotational movements.