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FiTour Basic Physiology Questions and Answers
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FiTour Basic Physiology Questions and Answers
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FiTour Basic Physiology Questions and Answers3 types of muscles - ANSWER-smooth (involuntary),cardiac (involuntary)
skeletal/striated (voluntary) About 400
All or none law of skeletal muscle contraction - ANSWER-Given a threshold or Supra
threshold stimuli, a muscle fiber will contract all the way or not at all.
Concentric Phase - ANSWER-A shortening of the muscle as a result of its contraction
Eccentric Phase - ANSWER-A lengthening of the muscle during its contraction; resists
movement caused by another force
Hyperplasia Theory - ANSWER-An increase in muscle size due to muscle fibers
splitting and forming separate fibers.
Hypertrophy Theory - ANSWER-An increase in muscle size due to the cross-sectional
area of the muscle increasing in size.
Isokinetic contraction - ANSWER-A muscle contraction with controlled speed, allowing
maximal force to be applied throughout the range of motion.
isometric contraction - ANSWER-A muscle contraction in which the force of the muscle
is greater than the resistance, resulting in joint movement with shortening of the
muscle..
isometric contraction - ANSWER-A muscle contraction in which the muscle length is
unchanged.
Muscle Contraction - ANSWER-Muscles apply force by contracting and pulling on
bones.
Muscle Fiber Types - ANSWER-Type 1 Slow- oxidation (SO)-slow twitch fiber- slow
speed of contraction- force is Low- Resistance to fatigue is high
Type 11a Fast Oxidation Glycolytic (FOG)
Intermediate fiber- fast speed of contraction- high force- high resistance to fatigue- can
be trained to act like type 1 or 11b
Type 11b Fast Glycolytic (FG) - fast-Twitch Fiber- fast speed of contraction- high force-
low resistance to fatigue
Muscle Mass Changes from - ANSWER-Resistance Training
Physiology - ANSWER-The study of human body function
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