Types Of Muscle Contraction

Question 1

What are the three groups of agonist muscle contractions?

Answer 1

• Isometric
• Isotonic (concentric)
• Isotonic (eccentric)

Question 2

Isometric contraction:

Answer 2

• Isometric contractions occur when there is no change in the length of the contracting muscle. For example, carrying an object in front of you.

• The amount of force a muscle is able to produce during an isometric contraction depends on the length of the muscle at the point of contraction.

• Each muscle has an optimum length at which the maximum isometric force can be produced.

Question 3

Isotonic concentric contraction:

Answer 3

• Concentric contractions are those which cause the muscle to shorten as it contracts.

• Concentric contractions are the most common type of muscle contractions and occur frequently in daily and sporting activities.