AND THEIR CORRECT ANSWERS
During exercise of increasing intensity, the point at
which blood lactate begins to accumulate above
resting levels is called the _______________.
Lactate threshold
Extreme muscle soreness results primarily after a
bout of _________________ exercise.Hint: a type of
muscle contraction.
Eccentric
Epinephrine and norepinephrine are referred to as
_____________________________.
Neurotransmitters
The actual shortening of muscle during muscle
contraction is due to the action of
__________________, which enable the thin filaments
to slide past the thick filaments.
You Answered
Actin-myosin crossbridges
The fuel source most likely to limit endurance is
______________________.
Glycogen
The form of resistance training where you resist the
movement of an object is referred to as.....
Eccentric
The increase in the number of individual muscle fibers
is referred to as....
Hyperplasia
, The basic difference between a power movement and
a strength movement is.....
Speed of the movement
The increase in strength with resistance training
results from....
Hypertrophy of the muscle, increased motor unit
recruitment, synchronization
Fiber-type conversion (e.g., fast-twitch [FT] to slow-
twitch[ST] conversion) has been shown to occur
under which of the following conditions?
Cross-innervation of motor nerve to muscle fibers, chronic
stimulation of FT motor units with low-frequency nerve
stimulation
Which of the following types of athletes would be
expected to have the highest percentage of fast-twitch
fibers in the muscles of their legs?
Sprinter
Other than genetics, what exerts the most significant
control on whether a muscle fiber is of a Type I or
Type II fiber type?
The type of neuron that stimulates it
The major metabolic waste product that causes the
muscles and blood to have a lower pH during exercise
of increasing intensity is....
Lactate
The motor unit is composed of....
Motor neuron, muscle fibers
The primary system for providing energy for a 2 hour
bout of work is the....
Oxidative