Muscle Contractions Flashcards
1
Q
Concentric
A
Shortening of muscle against a force (curling a weight or abs on a roll up)
2
Q
Eccentric
A
Lengthening of muscle while it contracts (letting a weight down or the abs on a roll down)
3
Q
Isometric
A
Contraction without movement or change in length (plank position or pushing a wall)
4
Q
Isotonic
A
Contraction tension remains unchanged and the muscle’s length changes (lifting an object at a constant speed)
5
Q
Myotatic
A
Stretch reflex, a contraction in response to a muscle stretch, it is a reflex
6
Q
Agonist
A
Prime mover
7
Q
Antagonist
A
Muscles that oppose or reverse a movement, this muscle is stretched and relaxed when the agonist is active, it may also act as a decelerator of the prime mover
8
Q
Synergistco-contractors
A
Muscles that assist/cooperate to produce the same movement
