Blood Flow Restriction (BFR) Training — Exercise & Movement
Training with partial venous occlusion to achieve hypertrophy-level muscle activation at 20-30% 1RM — ideal for rehabilitation, aging populations, and joint-compromised individuals.
Overview
Blood Flow Restriction (BFR) training uses specialized cuffs to partially occlude venous return while allowing arterial inflow during low-load resistance exercise (20-30% 1RM). This creates a hypoxic, metabolite-rich intramuscular environment that recruits fast-twitch motor units and stimulates growth hormone release at levels comparable to heavy resistance training. Over 200 studies demonstrate that BFR at 20-30% 1RM produces hypertrophy comparable to training at 70-80% 1RM. This makes it particularly valuable for post-surgical rehabilitation, elderly populations, and individuals with joint limitations who cannot tolerate heavy loads.
Indications
- Post-surgical muscle preservation and rehabilitation
- Hypertrophy with joint-friendly loading
- Elderly and frailty-risk populations
- Tendinopathy management
- Athletes during deload/taper periods
Mechanism of Action
Venous occlusion traps metabolites (lactate, H+, Pi) creating an intramuscular environment that stimulates type II fiber recruitment despite light loads
Dosing
| Compound | Dose | Frequency | Notes |
|---|---|---|---|
| BFR Training | 4 sets (30-15-15-15 reps) at 20-30% 1RM | 2-4x/week per muscle group | 30-60s rest between sets; maintain cuff inflation throughout all sets |
Safety & Contraindications
- Use calibrated, research-grade BFR cuffs (not wraps) for consistent pressure
- Occlusion pressure: 40-80% of arterial occlusion pressure (AOP)
- Do not apply to areas with DVT history without medical clearance
- Temporary numbness/tingling is normal; sharp pain or pale skin distal to cuff is not
- Contraindicated in uncontrolled hypertension, peripheral vascular disease, pregnancy