ACE ACE - Personal Trainer Anatomy and Biomechanics 2

Question 1

What is the primary function of the rotator cuff muscles?

Accepted Answer

Shoulder stabilization and rotation

Answer

The rotator cuff (SITS muscles) stabilizes the glenohumeral joint and facilitates shoulder rotation and elevation.

Question 2

Which type of muscle fiber has the highest aerobic (oxidative) capacity?

Accepted Answer

Type I

Answer

Type I (slow-twitch) fibers have the highest oxidative capacity, making them resistant to fatigue during endurance activities.

Question 3

What is the anatomical term for the front surface of the body?

Accepted Answer

Answer

Anterior refers to the front or ventral surface of the body.

Question 4

Which joint is classified as a hinge joint?

Accepted Answer

Elbow

Answer

The elbow (humeroulnar) joint is a hinge joint, allowing only flexion and extension in the sagittal plane.

Question 5

What is the term for the muscle responsible for the primary movement in a given exercise?

Accepted Answer

Agonist (prime mover)

Answer

The agonist, or prime mover, is the muscle primarily responsible for producing a desired movement.

ACE - Personal Trainer Exam Practice Test