CH5: Adaptations to Anaerobic Training Programs Flashcards
the anaerobic energy system works in the absence of what?
oxygen
what are the two components of the anaerobic energy system?
alactic (phosphagen) and lactic (glycolytic)
resistance training adaptation - muscular endurance
increases for high power output
resistance training adaptation - aerobic power
no change (slight increase maybe)
resistance training adaptation - rate of force production
increases
resistance training adaptation - sprint speed
increases
resistance training adaptation - muscle fiber cross sectional area
increases
resistance training adaptation - capillary density
no change or decrease
resistance training adaptation - mitochondrial density
decreases
resistance training adaptation - myofibrillar density
no change
resistance training adaptation - myofibrillar volume
increase
resistance training adaptation - cytoplasmic density
increasess
resistance training adaptation - myosin heavy chain protein
increases
resistance training adaptation - stored ATP
increases
resistance training adaptation - creating, myokinase, PFK
increases
resistance training adaptation - lactate dehydrogenase
no change
resistance training adaptation - sodium potassium ATPase
increases
resistance training adaptation - stored creatine phosphate
increases
resistance training adaptation - stored glycogen
increases
resistance training adaptation - stored triglerides
may increase
the size principle states that motor units are recruited in an ascending order according to what factors?
recruitment thresholds and firing rates
once a motor unit is recruited more activation is required for it to be re recruited (T/F)
F
what type of recruitment is the exception to the size principle and how does it usually occur?
selective recruitment, at very high speed and power thresholds
why do all muscles get larger with heavy resistance training?
because of the size principle, when motor units are recruited in an ascending order based on their size all lower threshold units get activated as well (the big don’t just get bigger)
myotatic reflex
harnesses the involuntary elastic properties of the muscle and connective tissues and acts to positively increase force production without any additional energy
resistance training has been shown to increase reflex potentiation by how much?
19-55%
what tool commonly used to examine the magnitude of neural activation within skeletal muscle?
EMG (electromyography)
in what phase of training do neural adaptation predominate the athletes progress?
early training stages
cross-education
the phenomenon of increased strength in the contralateral resting muscle when doing unilateral resistance training (up to 22%)
in untrained individuals the force produced when both limbs contract together is lower than the sum of the forces they produce individually - what is this called?
bilateral deficit
in trained individuals the force produced when both limbs contract together is often greater than the sum of the forces they produce individually - what is this called
bilateral facilitation
hypertrophy
the enlargement of muscle fiber cross sectional area