pretest exam 1 questions Flashcards
Which muscle functions in a feed-forward mechanism in anticipation of limb movements?
Multifidus
What is reached when a talk test during exercise reveals a client to be working at ventilatory threshold 2?
The level at which the body can work at its highest sustainable steady-state intensity for only few seconds
Which of the following global muscles’ primary action is hip flexion?
d. Rectus abdominis
What muscles does the tubing (shoulder) external rotation exercise primarily target?
. Infraspinatus and teres minor
What is a characteristic of a type II muscle fiber?
Short-term contractions
What is explained by the sliding filament theory?
The shortening of a sarcomere to produce a muscle contraction
What term best describes the amount of mineral content, such as calcium and phosphorous, in a segment of bone?
Bone density
According to the text, what percentage of Americans older than the age of 20 years are either overweight or obese?
0.72
What is the best next progression for a client who can properly perform the power step-up exercise?
Ice skaters
What is a kilocalorie (kcal)
The amount of energy needed to raise 1 kilogram of water by 1 degree Celsius. It is also the same thing as 1 food calorie.
Which muscles are typically overactive in association with lower crossed syndrome?
Hip flexors and lumbar extensors
Local muscles typically consist of which type of muscle fibers?
Type I
Mobility is a combination of which two musculoskeletal components?
Flexibility and joint ROM
What muscles does the tubing (shoulder) internal rotation exercise primarily target?
Subscapularis
What plyometric term relates to a rapid eccentric motion followed by an explosive concentric motion?
Stretch-shortening cycle
What differentiates change of direction from agility?
Reaction to a signal
Which of the following vitamins or groups of vitamins plays a key role in energy metabolism?
B vitamins
What is something that allows a fitness professional to stand out from others in featuring their services?
Unique selling proposition (USP)
Which type of muscle fiber has a large number of capillaries?
Type I