Unit 1 - Antagonistic pairs and muscle contractions

Question 1

What are Antagonistic pairs?

Answer 1

Antagonistic pairs are muscles that work together to provide movement at joints.
One muscle contracts, while another relaxes to create movement.

Question 2

What is an agonist?

Answer 2

The muscle contracting is the agonist

Question 3

What is an antagonist?

Answer 3

The muscle relaxing is the antagonist

Question 4

What are the two types of muscles contractions?

Answer 4

• Isotonic

- Isometric

Question 5

What is an isotonic muscle contraction?

Answer 5

Isotonic muscle contractions are those that result in movement

Question 6

What is an isometric muscle contraction?

Answer 6

Isometric muscle contractions are where the muscles contract but there is no visible movement

Question 7

What are the two different forms of isotonic contractions?

Answer 7

• Concentric muscle contraction

- Eccentric muscle contraction

Question 8

What is a concentric muscle contraction?

Answer 8

Concentric muscle contraction is when the muscle shortens during the contraction

Example: bicep muscle contracting to lift a weight during a bicep curl

Question 9

What is an eccentric muscle contraction?

Answer 9

Eccentric muscle contraction is when the muscle lengthens during the contraction

Example: bicep muscle contracting to lower and control the weight during a bicep curl activity