PNF

Question 1

What is the role of the muscle spindle

Answer 1

-Detect how far and fast a muscle is being stretched
-release a stretch reflex to prevent overstretching

Question 2

What does PNF stand for

Answer 2

Proprioceptive Neuromuscular Facilitation

Question 3

Advantages of PNF stretching

Answer 3

-Improved range of motion
-improved flexibility
-easily accessible and doable

Question 4

Disadvantages of PNF stretching

Answer 4

-poor technique could lead to injury
-can reduce speed and power

Question 5

Describe the process of PNF stretching

Answer 5

-A partner will perform a passive stretch for around 12 seconds
-The muscle spindles will initiate a stretch reflex
-The performer performs an isometric contraction
-The golgi tendon organs will produce an autogenic inhibition which will override the stretch reflex
-The muscle should be able to stretch further during the next passive stretch

Question 6

What is the role of the golgi tendon organs

Answer 6

-between muscle fibres and tendons
-detects the level of tension within the tendon
-releases autogenic inhibition which overrides stretch reflex