ch11 Flashcards
3 phases of plyometric training
eccentric, amortization, concentric
eccentric phase of plyometric training
deceleration, loading, yielding, counter movement, cocking
increases muscle spindle activity
potential energy is stored in elastic components like stretching a rubber band
amortization phase
dynamic stabilization
time between end of eccentric muscle action and initiation of concentric contraction
transition phase
prolonged amortization phase = less than optimal
concentric phase
unloading phase
immediately after amortization phase
like releasing rubber band after it was stretched
how long hold landing of a reactive stabilization exercise
3-5sec
plyometric stabilization description
involve little joint motion
establish optimal landing mechanics, postural alignment, reactive neuromuscular efficiency (coordination during dynamic movements)
plyometric strength description
more dynamic eccentric and concentric movement through a full range of motion
specificity, speed, and neural demand may also be progressed
improve dynamic joint stabilization, eccentric strength, rate of force production, neuromuscular efficient of entire human movement system
repetitive fashion
plyometric power descriptino
involve entire muscle action spectrum
improve rate of force production, eccentric strength, reactive strength, reactive join stabilization, dynamic neuromuscular efficiency, and optimal force production
plyometric stabilization exercises
squat jump with stabilization
box jump up with stabilization
box jump down with stabilization
multiplanar jump with stabilization
plyometric strength exercises
squat jump
tuck jump
butt kick
power step up
plyometric power exercises
ice skaters
single-leg power step up
proprioceptive plyometrics
plyometric training
also called reactive training
improves neuromuscular efficiency and improves rate of speed set by central nervous system
ice skaters
plyometric-power phase
stand with feet shoulders-width apart and pointed straight ahead
quickly push from side to side, landing on opposite foot while maintaining optimal alignment during the side to side hopping movement
repeat as quickly as can be controlled
can start by hopping side to side from one foot to other as fast as possible then progress by adding reach with opposite hand