ACSM-GEI : Certified Group Exercise Instructor Exam

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ACSM-GEI
Certified Group Exercise Instructor
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Question: 63
The human body adapts to exercising in the heat by increasing plasma volume,
decreasing core temperature, decreasing heart rate, and increasing the rate of
sweating. How soon do these changes occur?
A. 1-2 days
B. 3-4 days
C. 5-7 days
D. 9-14 days
Answer: D
Adaptations to exercising in the heat can take place as early as 9-14 days after the
beginning of acclimation. An increase in the body"s plasma volume occurs first,
followed by a decrease in both core temperature and heart rate. Lastly, the body
“learns” to sweat more. The wise Group Fitness Instructor (GFI) will cue
participants to drink more fluids and dress appropriately (loose fitting clothing, no
cotton, light colors) especially during the early phase of adaptation.
Question: 64
Group Fitness Instructors who suggest use of closed chain exercises during their
sessions are taking advantage of WHICH exercise principle?
A. Co-contraction of the agonist and antagonist muscle groups produces
compression of the joint
B. Co-contraction of the agonist and antagonist muscle groups produces shear of
the joint
C. Isolated contraction of a single muscle group produces compression of the joint
D. Isolated contraction of a single muscle group produces shear of the joint
Answer: A
Group Fitness Instructors who choose to use closed chain exercises during their
sessions are taking advantage of the fact that a closed-chain exercise tends to
produce joint compression instead of shear. Consider the squat versus the (open
chain) seated knee extension. In the open chain knee extension exercise, as the
foot moves forward in space pulled by the quadriceps, the tibia tends to shear or
translate forward on the femur, producing joint stress. In contrast, during a squat,
the contraction of the quadriceps is balanced by a protective contraction of the
hamstrings and the tibia does translate forward during the movement.
Question: 65
The Group Fitness Instructor is responsible for providing the most effective
workout in the shortest time. Which three triceps exercises have been shown to
elicit the GREATEST muscle activity?
A. The triangle pushup, dip and triceps kickback
B. The traditional pushup, dip and lying barbell triceps extension
C. The triangle pushup, closed-grip bench press and bar push-down
D. The traditional pushup, bar push-down and rope push-down
Answer: A
The triangle pushup is currently considered the gold standard for generating
triceps activity, however, ACE-sponsored research has showed that dips and
triceps kickbacks are nearly as effective. “Essentially all three exercises could be
used interchangeably,” reports ACE researcher Brittany Boehler, B.S. The closed
grip bench press, bar push-down, rope push-down and lying barbell triceps
extension all produce significantly less muscle activity in the triceps.
Question: 66
The term “concussion” BEST describes:
A. An injury to the brain, with immediate life-threatening repercussions
B. An injury to the brain caused during a sports event
C. An injury to the brain caused by anoxia
D. An injury to the brain caused by impact, resulting in change to mental status
Answer: D
In order for the term concussion to be used, the injury must not be immediately
life-threatening and there must be some change in mental status. The term
concussion is not specific to sports injury, although it has been getting a lot of
press lately due to the National Football League"s new regulations for the brain-
injured athlete. A concussion is also not merely an injury to the brain caused by
impact.. Typical signs of mental impairment may include: loss of consciousness,
faulty short-term memory (for instance, asking the same questions repeatedly);
drowsiness, nausea and vomiting, blurry or double vision, tinnitus, headache and
more.
Question: 67
Leaving the club, you observe a woman being clipped by a car in the parking lot.
The victim is standing and shows no signs of external trauma, but over the next 5
minutes, she turns pale, with clammy skin, and her pulse becomes weak and
irregular. Which of the following is NOT a good idea while waiting for the EMS
to arrive?
A. Lay her down on the ground
B. Cover her with a blanket or other warm item
C. Keep her head elevated to keep her awake
D. Elevate her legs 8”-12”
Answer: C
If a victim is suffering from internal bleeding, you do not want her head to remain
elevated. She should be placed on the ground gently (unless there are signs of
neck trauma, in which case, she should not be moved) and covered with a warm
blanket to help her thermo regulate. If there are no signs of lower extremity
trauma, her legs should be elevated 8”-12” to help return blood flow to the critical
regions, the chest and head. It is important to realize that she can go into
hypovolemic shock quickly, which can be fatal, even in the absence of external
signs of injury.
Question: 68
Your facility just launched a new aerobic fitness initiative. For the kick-off, they
offered members a standardized method to estimate their VO2max without the
risks commonly associated with maximal exercise testing. Which of the following
would LEAST likely have been chosen as a test for assessing submaximal aerobic
fitness?
A. YMCA sub maximal step test
B. McArdle step test
C. Timed up and go (TUG) test
D. Rockport fitness walking test (1-mile walk)
Answer: C
The timed up and go (TUG) test is a risk assessment test commonly used by
physical therapists; it assesses a client"s fall potential, not aerobic fitness level. In
contrast, both the YMCA and McArdle step tests do test submaximal fitness, each
by assessing heart rate after participants step onto a box (15” and 16.5”
respectively), at a given pace, for 3 minutes. In the Rockport walking test,
participants perform a timed 1 mile walk on a smooth, level surface. A score is
then formulated based on the time it took to complete the mile, the heart rate after
completion, and the rating of exertion perceived during the walk.
Question: 69
Viscosity refers to the property of bodily tissues which allows the tissues to resist
loads. Which factors are MOST LIKELY to alter viscosity?
A. Strength and muscle mass
B. Time and temperature
C. Muscle mass and gender
D. Strength and nutrition
Answer: B
Viscosity is dependent on both time and temperature, which is why it is important
for the Group Fitness Instructor to observe how well participants warm-up before
participating in vigorous physical activity. An adequate warm-up will reduce
viscosity, increase tissue extensibility, and decrease the risk of injury. Proper
feedback can motivate and encourage the participant to take the time to properly
prepare the body for exercise and not to see it as “wasted exercise time.”
Question: 70
The rotator cuff - often mispronounced as “rotor cuff” -- is comprised of a group
of muscles that are BEST known to work in harmony to:
A. Depress the head of the humerus into the glenoid fossa during shoulder
elevation
B. Elevate the head of the humerus into the inferior aspect of the acromion during
shoulder elevation
C. Provide normal scapulo-humeral rhythm during shoulder adduction
D. Work in concert with the upper trapezius to elevate the entire shoulder
complex (e.g. a shrugging motion)
Answer: A
The rotator cuff complex - comprised of the supraspinatus, infraspinatus, teres
minor, and subscapularis muscles - has as its chief function the job of depressing
the humeral “ball” down into the shallow “socket” (known as the glenoid fossa)
of the shoulder joint. Without a sufficient rotator cuff, the shoulder girdle loses its
capacity for normal kinematics. As the arm is elevated, the humerus rolls upward
and rams into the underside of the acromion. This results in a greatly reduced
ability to elevate the shoulder without hiking the entire shoulder complex.

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