Muscle Function & Contraction

All muscles can 'function' as a?

• Agonist

• Antagonist

• Concentric

• Eccentric

• Fixator

A fixator will be contracting ........

• concentrically

• eccentrically

• isotonically

• isometrically

Muscles eccentrically lengthening with a force while acting as a brake to control a movement at a joint will function as the?

• antagonist

• agonist

• fixator

• prime mover

Muscles concentrically shortening with a force to control a movement at a joint will function as the?

• antagonist

• agonist

• fixator

• prime mover

An antagonist muscle will be contracting?

• Isometrically

• Concentrically

• Concentrically

• No contraction, it's lengthening in opposition

A concentric contraction is when a muscle is ???

• lengthening while applying a force

• shortening while applying a force

• staying the same length while applying a force

• not applying a force

'Antagonist muscle action' is best explained in that muscles?

Match the following functions

• no contraction - lengthens in opposition

• agonist

• isometric

• antagonist

• concentric

• Fixator