NASM-CPT Exercise Science Fundamentals

Question 1

Which energy system provides the majority of ATP during high-intensity exercise lasting 10–30 seconds?

Accepted Answer

Glycolytic system

Answer

Oxidative system

Answer

ATP-PC (phosphagen) system

Answer

Beta-oxidation

Question 2

The sliding filament theory describes muscle contraction as a process in which:

Accepted Answer

Actin and myosin filaments slide past each other

Answer

Myosin filaments shorten by coiling

Answer

Sarcomeres grow longer during contraction

Answer

ATP is produced inside the muscle fiber

Question 3

Which type of muscle fiber has the highest oxidative capacity and is most resistant to fatigue?

Accepted Answer

Type I

Answer

Type IIx

Answer

Type IIa

Answer

Type IIb

Question 4

What is the primary role of the Golgi tendon organ (GTO)?

Accepted Answer

Detect changes in muscle tension and inhibit overcontracting muscles

Answer

Detect changes in muscle length

Answer

Sense joint position

Answer

Initiate the stretch reflex

Question 5

Stroke volume is best defined as:

Accepted Answer

The volume of blood ejected per heartbeat

Answer

The number of heartbeats per minute

Answer

The total blood volume in circulation

Answer

Oxygen consumption per kilogram of body weight

Question 6

Which lever class is MOST common in the human body?

Accepted Answer

Third-class lever

Answer

First-class lever

Answer

Second-class lever

Answer

Fourth-class lever