Lower Body Protocols (Day 1 & 4)
Phase 2 — 12-Week Multi-Phasial Hardware Reset
Day 1: Leg Day A — Primary Force Production
Version 1.0 | June 22, 2026 | Approx. Duration: 55 minutes
This protocol develops primary lower-body force production while protecting proximal hamstring tendon capacity and respecting scapulohumeral rhythm limits (0° shoulder). Time-boxed blocks support efficient execution. Progression follows a 4-week neural → velocity → loaded model.
Block A: Breathing Reset (3 min)
Purpose: Downregulate and prime diaphragmatic function plus gentle shoulder mobility before high CNS demand.
- Supine 90/90 Arm Reach — 2 × 5 breaths
Constraint: Reach strictly capped at 60° to avoid violent impingement of the 0° shoulder limit.
Block B: Active Warm-Up (5 min)
Purpose: Activate posterior chain, hip adductors/abductors, and dynamic stability.
- Dynamic FFE Split Squat (weightless) — 2 × 8/side
Cue: “Shift the zipper toward the lead leg. Find the medial heel on the descent.” - Copenhagen Adduction Level 1 with Abduction Reach — 2 × 5 breaths/side
Block C: CNS Primer (5 min)
Purpose: High-velocity rate of force development priming. Total volume: 3 sets × 3–5 quality reps.
| Phase | Weeks | Exercise Variation | Equipment / Load | Execution Notes |
|---|---|---|---|---|
| Neural Base | 1–4 | Seated Box Jump to Low Box | 18” box | Step down individually. Prioritize clean concentric power. |
| Velocity Build | 5–8 | Seated Box Jump to High Box | Higher box | Maintain seated initiation. Explosive intent. |
| Loaded Power | 9–12 | Seated Box Jump + Offset DB Hold | High box + moderate DB | Offset hold adds anti-rotation and unilateral stability demand. |
Block D: A-Block Strength (15 min)
Purpose: Heavy axial loading for maximal bilateral force expression and bracing under load.
- Heavy Belt Squats — 4 × 4–6
Cue: “Weight pulls straight down; decompress the lower back.”
Block E: Yielding Accessories (12 min)
Purpose: Develop eccentric/yielding strength, unilateral stability, and tissue resilience.
- B-Stance Heavy DB RDL — 3 × 8–12
Cue: “80% weight on front leg, hinge until hamstring catches.” - Foam Roller Split Squat — 3 × 8–12 / side
Block F: HIIT Cardio Finisher (15 min)
Purpose: Alactic power + aerobic development via sled locomotion. Strict 1:3 work-to-rest ratio.
| Phase | Weeks | Protocol | Work Parameters | Focus |
|---|---|---|---|---|
| Base | 1–4 | Slow Heavy Sled March | Controlled heavy load | Postural integrity + steady drive |
| Power | 5–8 | Continuous Sled Push | 45-second pushes | Sustained power output |
| Peak | 9–12 | High-Low Sled Sprints | Alternating high/low efforts | Peak velocity + recovery management |
Day 4: Leg Day B — Asymmetrical Eccentric Bias
Version 1.0 | June 22, 2026 | Approx. Duration: 70 minutes
This protocol emphasizes asymmetrical eccentric loading and foot pronation control. The bias toward unilateral yielding and strict foot mechanics supports long-term hamstring and foot resilience while respecting hip flexion limits.
Block A: Breathing Reset (3 min)
Purpose: Establish deep squat positioning and diaphragmatic function under asymmetrical load.
- Supported Deep Squat Breathing on Wedges — 2 × 5 breaths
Block B: Active Warm-Up (5 min)
Purpose: Restore hip shift capacity and lateral wall stability.
- Quadruped Hip Shift — 2 × 8/side
- Standing Wall Shift — 2 × 8
Block C: CNS Primer (5 min)
Purpose: Develop reactive foot and ankle yielding with controlled eccentric landings.
| Phase | Weeks | Exercise Variation | Key Constraint / Execution |
|---|---|---|---|
| Neural Base | 1–4 | Band-Assisted Tap Jump | Controlled tap with emphasis on foot placement. |
| Velocity Build | 5–8 | Band-Assisted Hop Hop Drops | Smash the medial heel and the base of the big toe on landing to neurologically force the locked foot into pronation. |
| Reactive Yield | 9–12 | Medial/Lateral Continuous Hurdle Hops | Maintain continuous rhythm while preserving foot mechanics. |
Block D: A-Block Strength (15 min)
Purpose: Heavy posterior chain strength with protected hip hinge mechanics.
- High-Handle Trap Bar Deadlift — 4 × 4–6
Cue: “Respect the 40° SLR; use the high handles to hinge without rounding.”
Block E: Yielding Accessories (12 min)
Purpose: Unilateral lower body yielding and isolated hamstring control.
- Offset Front-Foot Elevated Split Squat — 3 × 8–12
- Seated Machine Hamstring Curls — 3 × 8–12
Block F: LISS Cardio Finisher (30 min)
Purpose: Build aerobic capacity and foot pronation strength under strict nasal breathing.
| Phase | Weeks | Protocol | Parameters | Focus |
|---|---|---|---|---|
| Base | 1–4 | Seated Nasal Spin | Drive through medial heel and base of big toe | Force pronation on each pedal. |
| Loaded Aerobic | 5–8 | High-Resistance Seated Grind | Increased resistance | Maintain strict nasal breathing. |
| Peak Yielding | 9–12 | Seated Sprint Intervals | Transition to HIIT structure | Violent yielding under fatigue. |
Rule: Standing on the pedals is explicitly banned as it forces bilateral symmetrical extension.