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PE- Paper 1 > Muscles > Flashcards

Flashcards in Muscles Deck (11):
1

What is isotonic movement?

When tension is produced within the muscles and there is a change in muscle length.

2

What is an example of isotonic tension.

Kicking a football because your leg muscles are moving and contracting when you kick it.

3

What is isometric movement?

Tension is produced within the muscle but there is no change in muscle length.

4

Give an example of isometric tension.

The quadriceps in a rugby scrum as there is tension but no movement.

5

What are concentric contractions?

Tension is produced within the muscle and the muscle shortens.

6

What are eccentric contractions?

Tension is produced within the muscle and the muscle lengthens.

7

What are antagonistic pairs?

When two muscles work together to produce movement in a joint, one muscle acting as the agonist and the other the antagonist.

8

What is an agonist muscle?

The muscle that causes or controls the movement.

9

What is the antagonist muscle?

The muscle that allows movement to occur.

10

What are the two types of isotonic contraction?

Concentric
Eccentric

11

Which muscle shortens and which lengthens?

The agonist muscle usually shortens and the antagonist muscle usually lengthens.