A 3 Phase Strength & Mobility System for Hairstylist. Phase 1: Align (weeks 1-6) Phase 2: Support (weeks 7-12) Phase 3: Sustain (weeks 13-18) I created the behind the chair method after talking to dozens of stylists who are dealing with chronic pain. This three phase 18 week system that restores your mobility, build your strength and trains your body for long-term durability. It’s not a workout program. It’s a method you learned and used for life.