ISSA Personal Trainer Exam Questions & Answers 2026 (21–30)

Question 1

A fixator (stabilizer) muscle functions to:

TheoryPractice · Accepted Answer

Stabilize the origin so the prime mover can act efficiently. Fixators stabilize a bone or joint so the prime mover has a firm base to pull from.

Question 2

Which muscle is the prime mover for elbow extension?

TheoryPractice · Accepted Answer

Triceps brachii. The triceps brachii extends the elbow; the biceps and brachialis flex it.

Question 3

Which muscle group is located on the posterior thigh?

TheoryPractice · Accepted Answer

Hamstrings. The hamstrings (biceps femoris, semitendinosus, semimembranosus) are on the back of the thigh.

Question 4

The 'quadriceps' group contains how many muscles?

TheoryPractice · Accepted Answer

Four. The quadriceps femoris has four heads: rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius.

Question 5

Which muscle is the primary mover in plantarflexion of the ankle (e.g., standing on tiptoes)?

TheoryPractice · Accepted Answer

Gastrocnemius. The gastrocnemius (with the soleus) plantarflexes the ankle; the tibialis anterior dorsiflexes it.

Question 6

Which large back muscle is the prime mover for shoulder adduction and extension (e.g., a pull-up)?

TheoryPractice · Accepted Answer

Latissimus dorsi. The latissimus dorsi adducts, extends, and internally rotates the humerus, key in pulling movements.

Question 7

Which muscle abducts the arm at the shoulder, lifting it out to the side?

TheoryPractice · Accepted Answer

Deltoid (middle fibers). The middle (lateral) fibers of the deltoid abduct the arm away from the body.

Question 8

Which four muscles make up the rotator cuff?

TheoryPractice · Accepted Answer

Supraspinatus, infraspinatus, teres minor, subscapularis. The rotator cuff (SITS) is the supraspinatus, infraspinatus, teres minor, and subscapularis, which stabilize the glenohumeral joint.

Question 9

The gluteus maximus is the prime mover for which action?

TheoryPractice · Accepted Answer

Hip extension. The gluteus maximus powerfully extends the hip, important in standing, climbing, and sprinting.

Question 10

Which muscle flexes the hip and is often tight in people who sit for long periods?

TheoryPractice · Accepted Answer

Iliopsoas. The iliopsoas is the main hip flexor; prolonged sitting keeps it shortened and tight.

ISSA Personal Trainer Exam Questions & Answers 2026 (21–30)

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