Mastering High-Intensity Interval Training (HIIT) requires a structured approach that gradually increases the intensity and complexity of workouts. This guide outlines step-by-step guidelines from novice to expert level, along with a timeline estimation for each stage.
### Mastering HIIT: Comprehensive Guidelines
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#### Phase 1: Novice Level (0-3 months)
**Goals:**
- Understand basic HIIT concepts.
- Build cardiovascular endurance and