AQA A Level PE: Muscle Fiber Types Quiz

Which type of muscle fiber is primarily used during endurance activities like marathon running?

• Type I

• Type IIa

• Type IIx

• Type IIb

What is a key characteristic of fast twitch muscle fibers?

• High fatigue resistance

• High aerobic capacity

• High force production

• Low glycogen storage

Which muscle fiber type is known for being the most efficient at using oxygen to generate ATP for muscle contractions over a long time?

• Type I

• Type IIa

• Type IIx

• Type IIb

During a 100m sprint, which type of muscle fiber is predominantly recruited?

• Type I

• Type IIa

• Type IIx

• Type IIb

Which of the following sports would predominantly use Type I muscle fibers?

• Weightlifting

• 100m Sprint

• Marathon running

• Baseball

Fast twitch muscle fibers have a higher rate of fatigue than slow twitch fibers because they:

• Use oxygen more efficiently

• Have less myoglobin

• Rely more on anaerobic metabolism

• Store more glycogen

Which muscle fiber type is intermediate, showing characteristics of both slow and fast twitch fibers?

• Type I

• Type IIa

• Type IIx

• Type IIb

What does PNF stand for?

These are best activated when there is tension in the muscle

• Motor unit

• Motor neurone

• Golgi tendon organ

• Type IIa

What does anaerobic mean?

• With oxygen

• Without oxygen