You've explored the core scientific principles of smart triathlon training—from periodization and training load to recovery metrics and injury prevention. This guide goes "under the hood" to show you how the Theron app translates that peer-reviewed science into a practical, dynamic, and truly personalized training plan.
10.1 The Three-Tiered System
Theron structures your training using the same hierarchical model employed by elite coaches, ensuring your daily workouts are always aligned with your long-term goals.
- Macro-Level (The Season): When you set your "A" race, Theron builds a complete, periodized macrocycle. It intelligently allocates the right amount of time to the Base, Build, and Taper phases based on your specific race distance, ensuring you peak at the perfect moment.
- Meso-Level (The Week): For each week, the algorithm sets a target Training Stress Score (TSS) and selects the appropriate intensity distribution. During your Base phase, it will use a Pyramidal model to build deep endurance. As you move into the Build phase, it will shift to a Polarized model to sharpen your top-end speed.
- Micro-Level (The Day): This is where Theron's core intelligence lies. The system doesn't just stick to a pre-set plan. It uses your real-time physiological data to make intelligent adjustments every single day.
10.2 The Daily Readiness Score: Your Personal Feedback Loop
Theron's key differentiator is its ability to listen to your body. It calculates a daily readiness score by integrating multiple data streams into a single, actionable insight. This composite score is built from:
- Objective Data: Theron syncs with Apple Health to pull in crucial, non-invasive metrics like Heart Rate Variability (HRV), Resting Heart Rate, and both the Quality and Duration of your Sleep.
- Subjective Data: The app incorporates your morning wellness scores for mood, muscle soreness, and life stress, giving it a complete picture of your physical and mental state.
- Training Load Data: The algorithm constantly monitors your Training Stress Balance (TSB) and Acute:Chronic Workload Ratio (ACWR) to understand your current fatigue levels and injury risk.
10.3 The Decision Engine: From Data to Action
This daily readiness score is fed into Theron's decision engine, which uses a rule-based system to prescribe the perfect workout for you today.
| Athlete State | Readiness Score | Action Prescribed | Rationale |
|---|---|---|---|
| Optimal | High | Prescribe key high-intensity session. | The athlete is fresh and ready to handle a maximal stimulus for adaptation. |
| Maintaining | Good | Prescribe moderate aerobic session. | Maintain fitness and consistency without adding unnecessary fatigue. |
| Fatigued | Low | Prescribe low-intensity active recovery. | The body is showing signs of fatigue; a reduced workload is needed to allow for adaptation. |
| High Risk | Very Low | Prescribe a total rest day. | The combination of high workload (ACWR) and low readiness (HRV/Sleep) signals high injury risk. |
10.4 Your Data is Yours: Our Commitment to Privacy
We believe your training data is personal and sensitive. As an EU-based company, Theron is fully compliant with the General Data Protection Regulation (GDPR).
- All your data is stored on secure servers within the EU.
- We do not sell or share your personal training data with any third parties.
- Theron has no social features, so your data is never shown to any other user. Your training is your own.
10.5 Conclusion
Theron is more than just a static training plan; it's a dynamic coaching partner. It leverages decades of peer-reviewed sports science and your unique physiological data to ensure that every workout is the right workout. It takes the guesswork out of training, so you can focus on what matters most: becoming a stronger, healthier, and faster athlete.
