This glossary keeps the language of training and recovery readable. The aim is not to flatten sport into simple terms, but to make the terms precise enough to use without confusion.

How to use this glossary

• Start with the term you see most often.
• Read the short note in context, not as a fixed law.
• Compare the term with nearby terms before drawing a conclusion.

Key terms

Load

The work placed on the athlete by training, competition, or repeated stress. Load can be external, like distance or repetitions, or internal, like effort and strain.

Recovery

The process that allows the body and nervous system to absorb work. Recovery includes rest, sleep, nutrition, and time between demands.

Adaptation

The longer-term change that happens when repeated work is absorbed well enough to create improvement rather than only fatigue.

Fatigue

A temporary drop in readiness or output. Fatigue is not always a problem, but it becomes one when it lasts too long or distorts the next session.

Readiness

The state of being able to train or compete with acceptable quality. Readiness is influenced by recovery, stress, and recent workload.

Signal

An observable change that may point to a meaningful pattern. A signal is not proof on its own; it needs context.

Checklist for reading a term

• Is the term describing work, response, or recovery?
• Is it measured directly or inferred from behavior?
• Does the surrounding context change its meaning?

Note on interpretation

Many sport terms sound exact but behave differently in practice. The safest reading is usually the one that stays close to evidence and avoids treating one indicator as the whole story.