Understanding Muscle Types and Contractions

Which type of muscle fibre is best suited for endurance activities such as long-distance running?

• Type 2a fast twitch oxidative

• Type 1 slow twitch

• Type 2b fast twitch glycolytic

• Type 3 ultra-fast twitch

What is the main role of the agonist in an antagonistic muscle pair?

• To stabilise the joint

• To produce the main movement

• To oppose the movement

• To relax during contraction

Which type of muscle contraction occurs when the muscle lengthens under tension?

• Concentric

• Eccentric

• Isometric

• Isokinetic

Which muscle fibre type is most likely to be used during a 100-metre sprint?

• Type 1 slow twitch

• Type 2a fast twitch oxidative

• Type 2b fast twitch glycolytic

• Type 3 ultra-fast twitch

What is the function of a fixator muscle?

• To produce the main movement

• To oppose the main movement

• To stabilise the origin of the agonist

• To assist the antagonist

During a bicep curl, which muscle acts as the antagonist?

• Biceps

• Triceps

• Deltoid

• Pectoralis major

Which type of muscle contraction involves the muscle staying the same length while producing force?

• Concentric

• Eccentric

• Isometric

• Isokinetic

Which of the following best describes a synergist muscle?

• It produces the main movement

• It opposes the main movement

• It assists the agonist in performing the movement

• It stabilises the joint

Type 2a fast twitch oxidative fibres are best described as:

• Fatigue-resistant and slow to contract

• Fast to contract and easily fatigued

• Fast to contract and moderately resistant to fatigue

• Only used for isometric contractions

Which of the following is an example of an isokinetic contraction?

• Holding a plank position

• Lifting a dumbbell at a constant speed using a specialised machine

• Lowering yourself slowly from a pull-up

• Jumping as high as possible