concentric contraction

Definition

A muscle contraction where the muscle shortens while generating force, like the upward phase of a bicep curl. The fun part of lifting where you actually look strong.

Example Usage

The concentric contraction is easy; it's the eccentric lowering phase that makes me question all my life choices.

Origin

From Latin 'concentricus' meaning 'having a common center,' adopted into exercise physiology

Fun Fact

You're approximately 40% stronger during eccentric contractions than concentric ones, which is why lowering weight is easier than lifting it.

Source: Biomechanics and exercise physiology textbooks

Related Terms

Beginner

contraction

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.

⚽ Sports / Fitness

Beginner

gains goblin

Anything or anyone that interferes with your fitness progress—poor sleep, stress, your friend who always suggests pizza. The imaginary saboteur of swoletopia.

⚽ Sports / Fitness

Intermediate

Felix'd

A baseball tragedy where a pitcher throws an absolute masterpiece but receives zero run support from their team's offense, resulting in an undeserved loss or no-decision. Named after Felix Hernandez, whose Cy Young season featured the fewest wins in history because the Mariners couldn't hit water if they fell out of a boat. The sporting equivalent of acing a group project while your teammates nap.

⚽ Sports / Fitness

Intermediate

taper madness

The psychological anxiety and phantom injuries that afflict endurance athletes during pre-race taper periods when training volume drops. Every twinge becomes a career-ending injury in your mind.

⚽ Sports / Fitness

Advanced

kinetic chain

The interconnected system of body segments and joints that work together to produce movement. The reason your knee pain might actually be a hip problem, and why bodies are annoyingly complicated.

⚽ Sports / Fitness

Beginner

gymnastics

A sport where humans contort themselves into shapes that make regular people wince, requiring enough strength, flexibility, and body awareness to defy both gravity and common sense. Think of it as organized showing-off with judges holding up scorecards. Bonus points if you can stick a landing without your knees exploding.

⚽ Sports / Fitness

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