The training diary: turning data into meaningful adjustments
Explore Friel’s five recording categories, his historical scales and a method for interpreting execution, context and progress.
An activity file saves what happened. A useful diary also explains what was expected, how the session was lived and what decision will be made afterwards.
Friel organizes the chapter so that the records connect to the goals. Annotating everything without going back to information produces memory; reviewing patterns can produce changes in the program.
Five categories that help rebuild training
The author proposes recording morning signs, basic session information, time per zone, physical comments and mental comments.
Basic information includes route, duration, distance, environment, equipment and changes in relation to the plan. Physical comments add execution, discomfort and performance. Mentals allow recording motivation, confidence and perception of the session, dimensions that do not appear in the power file.
The time per zone helps to verify that the training has fulfilled its function. Finishing the predicted distance does not prove that the intensity distribution was planned.
The schedules and calculations of the edition
For sleep, fatigue, stress and muscle soreness, Friel uses a 1 to 7 scale, with lower scores indicating a more favorable situation. Morning heart rate is compared with a reference measured in a recovered state.
In the orthostatic example of the work, 46 bpm lying down and 72 standing up produce difference of 26. If, on another day, the difference is 32, the change recorded is +6 bpm.
The author uses alert values and signal combinations to guide load reduction or rest. These limits are practical rules of his method, not universal diagnostic criteria. A value outside the standard does not identify the cause alone, and a habitual value does not eliminate relevant symptoms.
It is also not correct to confuse this scale from 1 to 7 with the Borg from 6 to 20 used for exercise effort in Chapter 4. They are different records.
Weekly goals need to describe an action
The journal provides space for three weekly goals linked to priorities. A goal can be to complete a certain amount of work of a capacity, better perform the start of intervals or practice a tactical decision.
The number of tasks performed is useful, but should not reward obedience to an inadequate plan. If the session has been modified to preserve recovery and maintain the greater objective, the change needs to appear as information, not just as failure.
Editorial example: a record that produces a hypothesis
| Field | illustrative annotation |
|---|---|
| Purpose | Sustain controlled effort in the main stretch |
| Directed | Time complete, with attacks to accompany the group |
| Response | High effort and worse quality in the next session |
| Background | Two short nights of sleep |
| Next action | Review group dynamics and pre-priority training sequence |
The record does not show which factor caused the worsening. It allows to formulate better hypotheses than “complete training”. Observing repetition of patterns and subsequent changes helps to evaluate these hypotheses.
How to review without turning coincidence into a question?
Compare intention, execution and response under as similar conditions as possible. A greater power with similar effort may indicate evolution, but it is necessary to check duration, equipment and environment.
A competition also deserves to be analyzed by decisions: positioning, moments of exposure to the wind, feeding and effort distribution. Good results need the same attention as bad ones, to identify what is worth repeating.
The diary does not establish causality alone. Simultaneous changes make it difficult to know what worked, and an isolated association should remain as hypothesis.
The practical conclusion
The best record is the one who answers questions of preparation. It does not require filling out fields without purpose or turning the routine itself into constant vigilance.
The entry should lead to a decision: maintain a stimulus, adjust the distribution, investigate an answer or review the goal. This is how the history ceases to be only file and starts participating in the training.
Reference: FRIEL, Joe. The Cyclist’s Training Bible. 4th ed. VeloPress, 2009. Chapter 15, “Using a Training Diary”. Pages in the PDF file: 340–354. A selective synthesis written in our own words. Examples labeled as editorial are Enduran-se’s own examples; they are not additional cases reported by the author.
Cada um no seu ritmo. Juntos no caminho.