JACK KNIFE

I KNOW YOU TRYING TO FIGURE OUT, WHAT IN THE WORLD IS A JACK KNIFE???

JACK KNIFE IS A VERY INTENSE EXERCISE, BUT IT WORK ON EVERY PIECE OF YOUR POWERHOUSE.

STEPS OF THE JACK KNIFE

1. LAYIN ON BACK WITH  LEGS STRAIGHT UP TO CEILING
2. ROLLING ONE BONE AT A TIME
3. STRETCHING NECK
4. LIFT HIPS ON 1
5. SQUEEZE TO THE CEILING ON 2
6. ROLLING YOUR EACH VERTEBRAE AT 3
7. HEAD STRAIGHTEN AT 4
8. DO THIS EXERCISE 4 OR 5

http://www.bodybuilding.com/exercises/exerciseImages/sequences/91/Female/m/91_2.jpg

WHEN DOING THIS EXERCISE MAKE SURE YOU DO NOT AND I MEAN DO NOT SKIP A STEP, IF YOU SKIP A STEP, YOU WOULD NOT FEEL THE EXERCISE.