PNF stretching

Question 1

principles of PNF stretching

Answer 1

to 3 marks for explanation of PNF stretching.

• CRAC technique (contract-relax-antagonist-
  contract).
• Passive stretch performed with the assistance of a
  partner (stretch detected by muscle spindle
  apparatus).
• Followed by isometric contraction against
  resistance to override the stretch reflex (held for 6-
  8 seconds). This leads to autogenic inhibition
  (golgi tendon organs).
• Passive stretch performed again to increase range
  of movement. This process is then repeated to
  increase range of movement.