Agonist, antagonist, synergist and fixator
The roles a muscle plays in a movement, agonist-antagonist pairs and contraction modes.
- 34 cards
- 5 topics
- Free
The outline, topic by topic
Each topic is weighted the way the exam weighs it.
- Concepts
- On the body
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- Scenarios
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A few cards from the deck
Agonist: what is it?
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The main muscle that produces the movement.
The biceps in elbow flexion.
When lowering a biceps curl, which muscle works and how?
- The biceps, eccentrically
- The triceps, concentrically
- The biceps, concentrically
- None, it is gravity
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The biceps, eccentrically
The biceps brakes the descent by lengthening.
Antagonist: what is it?
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A muscle with the opposite action to the agonist, which relaxes or brakes.
The triceps in elbow flexion.
Why does soreness mainly come from braking phases?
- Braking costs more energy than pushing
- Eccentric work causes more micro-damage to fibres
- They come from lactic acid
- They come from the antagonist
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Eccentric work causes more micro-damage to fibres
Walking downhill causes more soreness than walking up.