Nishaana
What is Fartlek?
Unstructured speed play mixing fast and slow running segments.
In context
Fartlek is a key concept in training. Unstructured speed play mixing fast and slow running segments. Knowing what it means — and how it connects to the rest of your training — turns it from jargon into something you can actually use in the gym.
Nishaana is built around ideas like this: it tracks the numbers behind them automatically, so the theory shows up as real progress in your logbook rather than staying abstract.
Related training terms
Common questions.
What does fartlek mean?
Unstructured speed play mixing fast and slow running segments.
What category does fartlek belong to?
Fartlek is a term from training in strength and fitness training. Browse more training terms in the Nishaana glossary.
Why does fartlek matter for training?
Understanding fartlek helps you train and program more deliberately — it is one of the ideas that separates guessing from a real, repeatable system.
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