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Glossary · Training

What is Time Under Tension?

The total time a muscle is working during a set, often manipulated for hypertrophy.

In context

Time Under Tension is a key concept in training. The total time a muscle is working during a set, often manipulated for hypertrophy. 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.

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Related training terms

Common questions.

What does time under tension mean?

The total time a muscle is working during a set, often manipulated for hypertrophy.

What category does time under tension belong to?

Time Under Tension is a term from training in strength and fitness training. Browse more training terms in the Nishaana glossary.

Why does time under tension matter for training?

Understanding time under tension 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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