JP Fitness Forums - View Single Post - starting Stage 1 tomorrow, jacknife question

Flyingdogs · 06-01-2009, 09:17 AM

Some of the jackknife videos I've seen show people wearing shoes... this doesn't make sense to me.

I take my shoes off so that I can point my toes. This helps to engage your muscles in your back, abdomen and legs all together, allowing you to bridge the ball with more stability.

If you stand up, in bare feet, and then lift up on your tip-toes, you'll feel the muscles you need to engage.

Hope this helps.

I have been doing this to work up to the jack knife:

Extended plank: http://www.iposture.com/exercise_plank-extended.php

Vertical leg crunch:
http://www.bodybuildingworkout.net/v...unch_exercise/

I don't know how great the vertical leg crunch video is, I just looked it up to illustrate what I was doing to work up to the plank. These alternatives are described in either NROL or NROL4W.

I think I'm ready to try it again, and I'm about 8 weeks into stage 1 now.

06-01-2009, 09:17 AM	#3 (permalink)
Flyingdogs Member Join Date: Apr 2009 Posts: 81	Point your toes Some of the jackknife videos I've seen show people wearing shoes... this doesn't make sense to me. I take my shoes off so that I can point my toes. This helps to engage your muscles in your back, abdomen and legs all together, allowing you to bridge the ball with more stability. If you stand up, in bare feet, and then lift up on your tip-toes, you'll feel the muscles you need to engage. Hope this helps. I have been doing this to work up to the jack knife: Extended plank: http://www.iposture.com/exercise_plank-extended.php Vertical leg crunch: http://www.bodybuildingworkout.net/v...unch_exercise/ I don't know how great the vertical leg crunch video is, I just looked it up to illustrate what I was doing to work up to the plank. These alternatives are described in either NROL or NROL4W. I think I'm ready to try it again, and I'm about 8 weeks into stage 1 now.