contraction

Definition

In fitness terms, what your muscle does when it's actually working—shortening under tension to create movement. Not to be confused with economic contractions (your wallet getting lighter) or labor contractions (a completely different kind of pain), though all three can make you sweat profusely.

Example Usage

Each bicep contraction during my workout reminded me why I skipped the gym for three months.

Source: Exercise physiology terminology

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lmap

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