Nishaana
What is Flexibility?
The passive range a muscle can be stretched.
In context
Flexibility is a key concept in biomechanics. The passive range a muscle can be stretched. 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 biomechanics terms
Common questions.
What does flexibility mean?
The passive range a muscle can be stretched.
What category does flexibility belong to?
Flexibility is a term from biomechanics in strength and fitness training. Browse more biomechanics terms in the Nishaana glossary.
Why does flexibility matter for training?
Understanding flexibility helps you train and program more deliberately — it is one of the ideas that separates guessing from a real, repeatable system.
One email a week: a training principle, broken down with real numbers. No spam.
or start training free →