ANAEROBIC TRAINING Flashcards
anaerobic training is characterized by what
is characterized by high-intensity, intermittent bouts of exercise.
Long-Term Adaptations in Response to Anaerobic Training improve in
Muscular strength,
Muscular power,
Muscular hypertrophy,
Muscular endurance,
Motor skills, &
Coordination.
what does decrease with adaptation to resistance training
% body fate and mitochondria
Motor cortex activity increases when
the level of force developed increases.
new exercises or movements are being learned.
Anaerobic Training
many neural changes take place along the
descending corticospinal tract
Untrained Individuals
display limited ability to maximally recruit
motor neuron especially fast-twitch motor unit
Gains in maximal strength & power of agonist muscles are generally associated with:
an increase in recruitment,
an increased rate of firing,
greater synchronization of neural discharge, or
a combination of all these factors.
what is Henneman’s Size Principle
is a rule describing the orderly recruitment & decruitment of motor units.
characteristic of type 1 motor unit
Smaller diameter axons
Lower recruitment thresholds
Higher input resistance
More excitable
Typically recruited first
caracteristic of type II motor unit
Larger diameter axons
Higher recruitment thresholds
Lower input resistance
Less excitable
Typically recruited after Type 1 MUs
Low-threshold motor units
are recruited
first & have lower force capabilities than higher-threshold motor units.
With heavy resistance training,
all muscle fibers get (smaller/larger) because motor units are recruited in a
larger, sequential order by their size to produce high levels of force.
In advanced lifters,
the CNS might adapt by allowing these well-trained athletes to recruit some motor units in a nonconsecutive order, by recruiting smaller/larger ones first to promote greater production of power or speed in a movement.
larger
In the Deschenes et al. (2000) study resistance exercise training significantly increased:
endplate perimeter length,
endplate area, &
the dispersion of ACh receptors within the endplate region.
Anaerobic Training
enhances
reflex response, reflex potentiation, the magnitude & rate of force development.