plyometrics

Question 1

plymoetrics

Answer 1

use of stretch-shortening muscle cycle to produce powerful and explosive movements
enables muscle to reach max force in shortest time
muscle is loaded with eccentric action followed by concentric action

Question 2

stretch reflex and store plastic energy

Answer 2

to develop a more muscular contraction, enhancing neural adaptions

Question 3

eccentric muscle contraction

Answer 3

stretch reflex initiates a rapid concentric muscle contraction as a protective mechanism to prevent muscles overstretching

Question 4

utilising stretch reflex

Answer 4

everyday sport activities

bending hips, knees, ankles before jumping

Question 5

stretch shortening cycle

Answer 5

1- pre stretch or eccentric muscle action
2- between end of the pre-stretch and start of the concentric muscle action
3- actual muscle contarction

Question 6

eccentric phase

Answer 6

stores elastic energy, which is immediately used in concentric contraction
eg- stretch rubber band before releasing it

Question 7

fitness components

Answer 7

muscular power

speed

Question 8

beneficial for endurance athletes

Answer 8

providing less energy required to produce each stride

bursts of energy

Question 9

training considerations

Answer 9

to minimise injuries:
appropriate footwear
warm up
3 min rest between sets
low intensity before progressing

Question 10

warm up increases

Answer 10

muscle temp
core body temp
elasticity of muscles
heart rate and blood flow to working muscles

Question 11

cool down benefits

Answer 11

return body to pre exercise levels:
HR
RR
removal of waste products