ACSM-CPT ACSM-CPT Anatomy and Biomechanics 1

Question 1

Which muscle is the primary mover during a barbell back squat?

Accepted Answer

Gluteus maximus

Answer

The gluteus maximus is the primary mover during a squat because it drives hip extension from the bottom position.

Question 2

What term describes movement of a limb away from the midline of the body?

Accepted Answer

Abduction

Answer

Abduction refers to moving a limb away from the body's midline, such as raising the arm out to the side.

Question 3

Which plane of motion divides the body into front and back halves?

Accepted Answer

Frontal plane

Answer

The frontal (coronal) plane divides the body into anterior and posterior halves and governs lateral movements.

Question 4

The biceps brachii muscle crosses which two joints?

Accepted Answer

Elbow and shoulder

Answer

The biceps brachii is a two-joint muscle that crosses both the elbow and the glenohumeral (shoulder) joint.

Question 5

During a push-up, the triceps brachii acts as which type of mover?

Accepted Answer

Agonist

Answer

The triceps brachii is the agonist (prime mover) during the pushing phase of a push-up because it produces elbow extension.

(ACSM-CPT) American College of Sports Medicine Certified Personal Trainer Practice Test