ACTION CPT - TRAINER EXAM
QUESTIONS AND ANSWERS 2026/2027
NASM Certified Personal Trainer (CPT) 7th
Edition Practice Examination.
DOMAIN 1: HUMAN MOVEMENT SCIENCE & FUNCTIONAL ANATOMY (14 Questions)
Question 1 (Multiple-Choice)
A client performs a drawing-in maneuver during a supine abdominal assessment. Which specific
muscle of the local stabilization system is primarily responsible for creating intra-abdominal
pressure and stabilizing the sacroiliac joint?
A. Rectus abdominis
B. External oblique
C. Transversus abdominis
D. Erector spinae
Answer: C [CORRECT]
Rationale: The Transversus Abdominis (TVA) is the deepest layer of the abdominal wall and the
primary muscle of the local stabilization system responsible for the drawing-in maneuver. When
activated, the TVA compresses the abdominal contents, increases intra-abdominal pressure, and
creates a rigid cylinder that stabilizes the lumbar spine and sacroiliac joint. This is a foundational
NASM concept for Phase 1 Stabilization training. The rectus abdominis and external oblique are
global mobilizers, not local stabilizers.
Question 2 (Select-All-That-Apply)
Which of the following muscles constitute NASM's defined Local Stabilization System (the "inner
core")? (Select all that apply.)
A. Transversus abdominis
B. Multifidus
C. Rectus abdominis
,D. Pelvic floor muscles
E. Erector spinae
F. Diaphragm
Answer: A, B, D, F [CORRECT]
Rationale: NASM defines the Local Stabilization System as the inner core unit consisting of four
specific muscles: the Transversus Abdominis (TVA), the Multifidus (deep spinal segmental
stabilizer), the Pelvic Floor muscles, and the Diaphragm. These muscles work synergistically to
provide segmental spinal stability through increased intra-abdominal pressure and
thoracolumbar fascial tension before global movement occurs. The Rectus Abdominis and
Erector Spinae are classified as Global Stabilization System muscles, responsible for multi-
segmental stability and movement, not the deep local system.
Question 3 (True/False)
The Multifidus muscle is a deep segmental stabilizer of the spine that provides proprioceptive
feedback and intervertebral stability, and it is classified as part of the Local Stabilization System
in the NASM OPT model.
A. True
B. False
Answer: A [CORRECT]
Rationale: True. The Multifidus is a deep paraspinal muscle that spans only 1-3 vertebral
segments, making it a precise segmental stabilizer rather than a global mover. It provides critical
proprioceptive feedback to the central nervous system about spinal position and is activated
prior to global movement to prepare the spine for load. NASM classifies it within the Local
Stabilization System alongside the TVA, pelvic floor, and diaphragm. Dysfunction or inhibition of
the Multifidus is associated with chronic low back pain and segmental instability.
Sub-Topic: Synergistic Muscle Dominance During Squat (3 Questions)
Question 4 (Multiple-Choice)
During a barbell back squat, the gluteus maximus is the prime mover for hip extension.
However, a client demonstrates excessive forward trunk lean and lumbar extension at the
,bottom of the squat. Which muscle group is demonstrating synergistic dominance by
compensating for a weak or inhibited gluteus maximus?
A. Quadriceps and iliopsoas
B. Hamstrings and erector spinae
C. Gastrocnemius and soleus
D. Adductor magnus and gracilis
Answer: B [CORRECT]
Rationale: When the gluteus maximus is weak or inhibited (underactive), the hamstrings and
erector spinae demonstrate synergistic dominance during hip extension. The hamstrings
attempt to compensate for insufficient gluteal drive, while the erector spinae hyperextend the
lumbar spine to maintain an upright torso, creating the observed excessive forward lean and
lumbar extension. This compensation pattern increases shear forces on the lumbar vertebrae
and is a primary target for correction in NASM's Corrective Exercise Strategy (inhibit/lengthen
the overactive synergists, activate the underactive prime mover).
Question 5 (Select-All-That-Apply)
A client performing a bodyweight squat exhibits synergistic dominance. Which of the following
are accurate statements regarding synergistic dominance in the NASM model? (Select all that
apply.)
A. Synergistic dominance occurs when a synergist muscle compensates for an inhibited or weak
prime mover.
B. During a squat, tight hip flexors can inhibit the gluteus maximus via reciprocal inhibition,
leading to hamstring and erector spinae dominance.
C. The gluteus maximus is the prime mover for hip extension; when inhibited, the adductor
magnus becomes the primary compensator.
D. Synergistic dominance increases stress on joints and connective tissue, elevating injury risk.
E. The primary corrective strategy is to strengthen the synergist muscles that are compensating.
Answer: A, B, D [CORRECT]
Rationale: Synergistic dominance (A) is defined by NASM as the compensation where a
synergist takes over the role of a weak or inhibited prime mover. In the squat pattern (B),
tight/overactive hip flexors (iliopsoas, rectus femoris) create reciprocal inhibition of the gluteus
maximus, forcing the hamstrings and erector spinae to compensate. Statement C is incorrect
because the primary compensators are the hamstrings and erector spinae, not the adductor
magnus. Statement D is correct—synergistic dominance alters movement mechanics and
, increases joint stress. Statement E is incorrect; the NASM Corrective Exercise Strategy requires
inhibiting/lengthening the overactive synergists and activating the underactive prime mover
(gluteus maximus), not strengthening the compensators.
Question 6 (Multiple-Choice)
A trainer observes that a client's knees track significantly forward past the toes during a squat,
accompanied by excessive ankle dorsiflexion and an upright torso. Which of the following
represents the most likely synergistic dominance pattern according to NASM?
A. Quadriceps dominance compensating for weak hamstrings
B. Gastrocnemius dominance compensating for weak tibialis anterior
C. Gluteus medius dominance compensating for weak adductors
D. Erector spinae dominance compensating for weak rectus abdominis
Answer: A [CORRECT]
Rationale: When the knees track excessively forward past the toes with an upright torso, the
quadriceps are demonstrating synergistic dominance, compensating for weak or inhibited
hamstrings and gluteals. The quadriceps attempt to drive the movement through knee
extension rather than the optimal hip-dominant pattern. This alters the biomechanics, increases
patellofemoral compression forces, and shifts the center of mass forward. The NASM corrective
approach would involve inhibiting/lengthening the overactive quadriceps/hip flexors and
activating the underactive hamstrings and gluteus maximus to restore proper squat mechanics.
Sub-Topic: The Golgi Tendon Organ (3 Questions)
Question 7 (Multiple-Choice)
During a maximal-effort isometric leg press, a client suddenly experiences an involuntary
relaxation of the quadriceps muscle despite conscious effort to maintain contraction. Which
sensory organ is responsible for this protective reflex, and what is the specific mechanism
called?
A. Muscle spindle; reciprocal inhibition
B. Golgi Tendon Organ; autogenic inhibition
C. Pacinian corpuscle; autogenic inhibition
D. Ruffini ending; reciprocal inhibition
QUESTIONS AND ANSWERS 2026/2027
NASM Certified Personal Trainer (CPT) 7th
Edition Practice Examination.
DOMAIN 1: HUMAN MOVEMENT SCIENCE & FUNCTIONAL ANATOMY (14 Questions)
Question 1 (Multiple-Choice)
A client performs a drawing-in maneuver during a supine abdominal assessment. Which specific
muscle of the local stabilization system is primarily responsible for creating intra-abdominal
pressure and stabilizing the sacroiliac joint?
A. Rectus abdominis
B. External oblique
C. Transversus abdominis
D. Erector spinae
Answer: C [CORRECT]
Rationale: The Transversus Abdominis (TVA) is the deepest layer of the abdominal wall and the
primary muscle of the local stabilization system responsible for the drawing-in maneuver. When
activated, the TVA compresses the abdominal contents, increases intra-abdominal pressure, and
creates a rigid cylinder that stabilizes the lumbar spine and sacroiliac joint. This is a foundational
NASM concept for Phase 1 Stabilization training. The rectus abdominis and external oblique are
global mobilizers, not local stabilizers.
Question 2 (Select-All-That-Apply)
Which of the following muscles constitute NASM's defined Local Stabilization System (the "inner
core")? (Select all that apply.)
A. Transversus abdominis
B. Multifidus
C. Rectus abdominis
,D. Pelvic floor muscles
E. Erector spinae
F. Diaphragm
Answer: A, B, D, F [CORRECT]
Rationale: NASM defines the Local Stabilization System as the inner core unit consisting of four
specific muscles: the Transversus Abdominis (TVA), the Multifidus (deep spinal segmental
stabilizer), the Pelvic Floor muscles, and the Diaphragm. These muscles work synergistically to
provide segmental spinal stability through increased intra-abdominal pressure and
thoracolumbar fascial tension before global movement occurs. The Rectus Abdominis and
Erector Spinae are classified as Global Stabilization System muscles, responsible for multi-
segmental stability and movement, not the deep local system.
Question 3 (True/False)
The Multifidus muscle is a deep segmental stabilizer of the spine that provides proprioceptive
feedback and intervertebral stability, and it is classified as part of the Local Stabilization System
in the NASM OPT model.
A. True
B. False
Answer: A [CORRECT]
Rationale: True. The Multifidus is a deep paraspinal muscle that spans only 1-3 vertebral
segments, making it a precise segmental stabilizer rather than a global mover. It provides critical
proprioceptive feedback to the central nervous system about spinal position and is activated
prior to global movement to prepare the spine for load. NASM classifies it within the Local
Stabilization System alongside the TVA, pelvic floor, and diaphragm. Dysfunction or inhibition of
the Multifidus is associated with chronic low back pain and segmental instability.
Sub-Topic: Synergistic Muscle Dominance During Squat (3 Questions)
Question 4 (Multiple-Choice)
During a barbell back squat, the gluteus maximus is the prime mover for hip extension.
However, a client demonstrates excessive forward trunk lean and lumbar extension at the
,bottom of the squat. Which muscle group is demonstrating synergistic dominance by
compensating for a weak or inhibited gluteus maximus?
A. Quadriceps and iliopsoas
B. Hamstrings and erector spinae
C. Gastrocnemius and soleus
D. Adductor magnus and gracilis
Answer: B [CORRECT]
Rationale: When the gluteus maximus is weak or inhibited (underactive), the hamstrings and
erector spinae demonstrate synergistic dominance during hip extension. The hamstrings
attempt to compensate for insufficient gluteal drive, while the erector spinae hyperextend the
lumbar spine to maintain an upright torso, creating the observed excessive forward lean and
lumbar extension. This compensation pattern increases shear forces on the lumbar vertebrae
and is a primary target for correction in NASM's Corrective Exercise Strategy (inhibit/lengthen
the overactive synergists, activate the underactive prime mover).
Question 5 (Select-All-That-Apply)
A client performing a bodyweight squat exhibits synergistic dominance. Which of the following
are accurate statements regarding synergistic dominance in the NASM model? (Select all that
apply.)
A. Synergistic dominance occurs when a synergist muscle compensates for an inhibited or weak
prime mover.
B. During a squat, tight hip flexors can inhibit the gluteus maximus via reciprocal inhibition,
leading to hamstring and erector spinae dominance.
C. The gluteus maximus is the prime mover for hip extension; when inhibited, the adductor
magnus becomes the primary compensator.
D. Synergistic dominance increases stress on joints and connective tissue, elevating injury risk.
E. The primary corrective strategy is to strengthen the synergist muscles that are compensating.
Answer: A, B, D [CORRECT]
Rationale: Synergistic dominance (A) is defined by NASM as the compensation where a
synergist takes over the role of a weak or inhibited prime mover. In the squat pattern (B),
tight/overactive hip flexors (iliopsoas, rectus femoris) create reciprocal inhibition of the gluteus
maximus, forcing the hamstrings and erector spinae to compensate. Statement C is incorrect
because the primary compensators are the hamstrings and erector spinae, not the adductor
magnus. Statement D is correct—synergistic dominance alters movement mechanics and
, increases joint stress. Statement E is incorrect; the NASM Corrective Exercise Strategy requires
inhibiting/lengthening the overactive synergists and activating the underactive prime mover
(gluteus maximus), not strengthening the compensators.
Question 6 (Multiple-Choice)
A trainer observes that a client's knees track significantly forward past the toes during a squat,
accompanied by excessive ankle dorsiflexion and an upright torso. Which of the following
represents the most likely synergistic dominance pattern according to NASM?
A. Quadriceps dominance compensating for weak hamstrings
B. Gastrocnemius dominance compensating for weak tibialis anterior
C. Gluteus medius dominance compensating for weak adductors
D. Erector spinae dominance compensating for weak rectus abdominis
Answer: A [CORRECT]
Rationale: When the knees track excessively forward past the toes with an upright torso, the
quadriceps are demonstrating synergistic dominance, compensating for weak or inhibited
hamstrings and gluteals. The quadriceps attempt to drive the movement through knee
extension rather than the optimal hip-dominant pattern. This alters the biomechanics, increases
patellofemoral compression forces, and shifts the center of mass forward. The NASM corrective
approach would involve inhibiting/lengthening the overactive quadriceps/hip flexors and
activating the underactive hamstrings and gluteus maximus to restore proper squat mechanics.
Sub-Topic: The Golgi Tendon Organ (3 Questions)
Question 7 (Multiple-Choice)
During a maximal-effort isometric leg press, a client suddenly experiences an involuntary
relaxation of the quadriceps muscle despite conscious effort to maintain contraction. Which
sensory organ is responsible for this protective reflex, and what is the specific mechanism
called?
A. Muscle spindle; reciprocal inhibition
B. Golgi Tendon Organ; autogenic inhibition
C. Pacinian corpuscle; autogenic inhibition
D. Ruffini ending; reciprocal inhibition
