It is very common to look at your upcoming calendar and notice that your planned training volume fluctuates significantly from week to week (for example, seeing weeks of 24, 17, and then 35 kilometres or miles). While traditional training plans often prescribe a steady, linear progression of volume (e.g., increasing mileage by 10% each week), TrainAsONE uses a dynamic, mathematical approach to optimise your training.
Here is why your planned training volume changes, and why this variation is actually a beneficial part of your training:
1. Functional Overreaching and Block Overloading
Traditional training plans try to keep your training volume and intensity steady. However, TrainAsONE looks at training through a long-term lens of fatigue and recovery. To trigger deeper physiological adaptations, the AI may intentionally group consecutive long or hard workouts into a tight window (block overloading/functional overreaching).
This is fully paired with a corresponding "recovery payback" period where the volume is drastically reduced to allow your body to repair, adapt, and supercompensate. This cycle naturally causes weekly volume to fluctuate. For more details on this strategy, see Why did TrainAsONE schedule a hard speed session immediately after consecutive long runs?.
2. Preventing Training Monotony
Sports science shows that running the same volume and intensity repeatedly leads to high training monotony, which increases injury risk and decreases training effectiveness. TrainAsONE constantly monitors and manages:
- Training Monotony: The statistical variation in day-to-day training.
- Training Strain: The combination of training load and monotony over time.
By varying your weekly volume, frequency, and workout mix, TrainAsONE keeps monotony low (under 1.5 is desirable) and prevents excessive training strain.
3. Rejecting Static, One-Size-Fits-All Templates
Most training plans rely on rigid, static percentage changes (like reducing weekly mileage by exactly 20–25% each week of a taper). TrainAsONE moves beyond these static templates, as explained in How is TrainAsONE different to the other adaptive training programmes on the market?.
The system treats your entire plan as a single, fluid mathematical equation. A reduction in training volume emerges naturally and mathematically based on your unique training history, actual fitness, and goal requirements rather than arbitrary milestones (see Do TrainAsONE plans incorporate a taper?).
4. Dynamic and Non-Deterministic Optimisation
Every time you complete a run, miss a session, or change your settings, TrainAsONE recalculates the best path forward from your current state. Because there are thousands of potential pathways to reach your target, the system may adjust future workouts to maintain an optimal balance of fitness gains and injury risk. This Non-deterministic recalculation ensures your plan is continuously customised, which can cause upcoming weeks to show varying volumes as the AI fine-tunes your schedule (see also I have changed and then reverted my training settings, but my plan is now different to before. Why?).
5. Prioritising Consistency and Injury Prevention
More is not always better. TrainAsONE focuses on the minimum effective dose to achieve your goal safely. If the AI detects fatigue or niggle risk, it will proactively hold back volume to protect your health. As discussed in Why is my marathon plan mileage lower than expected?, total consistency over months is a much better predictor of success than hitting a high, steady weekly mileage target that risks injury.