This topic contains a solution. Click here to go to the answer

Author Question: What is PNF stretching? Summarize the procedure. ... (Read 21 times)

pragya sharda

  • Hero Member
  • *****
  • Posts: 566
What is PNF stretching? Summarize the procedure.

Question 2

As the 12-year-old son of a single alcoholic mother, Melvin does most of the cooking and cleaning. What role is he playing?
 a. family hero
  b. lost child
 c. scapegoat
 d. mascot
 e. parent



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nekcihc358

  • Sr. Member
  • ****
  • Posts: 327
Answer to Question 1

Proprioceptive neuromuscular facilitation (PNF) stretching is based on a contract-and-relax method and requires the assistance of another person. The procedure is as follows:
The person assisting with the exercise provides initial force by pushing slowly in the direction of the desired stretch. This first stretch does not cover the entire range of motion.
The person being stretched then applies force in the opposite direction of the stretch, against the assistant, who tries to hold the initial degree of stretch as close as possible. This results in an isometric contraction at the angle of the stretch. The force of the isometric contraction can be anywhere from 20 to 75 percent of the person's maximum contraction.
After 3 to 6 seconds of isometric contraction, the person being stretched relaxes the target muscle or muscles completely. The assistant then increases the degree of stretch slowly to a greater angle, and for the PNF technique, the stretch is held for 10 to 30 seconds.
If a greater degree of stretch is achievable, the isometric contraction is repeated for another 3 or 6 seconds, after which the degree of stretch is slowly increased again and held for 10 to 30 seconds.
If a progressive degree of stretch is used, steps 1 through 4 can be repeated up to five times. Each isometric contraction is held for 3 to 6 seconds. The progressive stretches are held for about 10 secondsuntil the last trial, when the final stretched position is held for up to 30 seconds.

Answer to Question 2

a




pragya sharda

  • Member
  • Posts: 566
Reply 2 on: Aug 6, 2018
Gracias!


mohan

  • Member
  • Posts: 362
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

For a complete list of videos, visit our video library