What it builds. Movement quality, joint position, trunk stability and the plain ability to tolerate training at all.
Almost every injury and plateau a trainer meets later was invited during this phase, by skipping it. A client who cannot hinge without their lower back taking over does not need a heavier deadlift — they need six weeks of this.

Everyone, day one. Returning clients re-enter here after a long layoff, an injury, or any surgery.
The five primary patterns — hinge, squat, push, pull, carry — performed with control at light load, with no compensation you have to coach away every rep.
2–3 full-body sessions. Movement screen re-checked weekly. Tempo and isometric work, 12–20 reps at loads that never threaten technique. Daily mobility on the two restrictions you actually found.
Goes 5× deeper in: Corrective Exercise Specialist (CES) — optional, never required.




