Muscle contractions, movements & fibre types

"Muscle action where the muscle remains the same length" refers to which type of muscle contraction?

• Flexion

• Concentric

• Isometric

• Eccentric

• Abduction

Which fibre types are white, fatigue rapidly and have a low level of oxygen?

• Type 1, Slow-twitch fibres

• Type 2, Fast-twitch fibres

Which of the following is not a type of muscle contraction?

• Concentric

• Adduction

• Isometric

• Flexion

• Eccentric

A concentric muscle contraction is when...

• The agonist muscle lengthens

• The antagonist muscle remains same length

• The agonist muscle shortens

100M Sprinter have more of which muscle fibre type?

• Type 1

• Type 2

• Type 3

Define the term agonist.

• The muscle which relaxes and lengthens

• The contracting muscle which shortens

• The biceps

• The quadriceps

Which 2 antagonistic pairs could the exam ask you about?

• Deltoid and trapezius

• Hamstring and quadriceps

• Tibialis anterior and gastrocnemius

• Latissimus dorsi and pectoralis major

• Biceps and triceps

When flexing the arm at the elbow, which muscle is the antagonist?

• Biceps

• Triceps

Which muscle (agonist) causes flexion of the leg at the knee?

• Hamstrings

• Quadriceps

What is a sporting example of an isometric contraction?

(a)