CrossFit Discussion Board  

Go Back   CrossFit Discussion Board > CrossFit Forum > Exercises
CrossFit Home Forum Site Rules CrossFit FAQ Search Today's Posts Mark Forums Read

Exercises Movements, technique & proper execution

Reply
 
Thread Tools
Old 05-31-2008, 07:48 AM   #1
Keegan Riotto
Member Keegan Riotto is offline
 
Profile:
Join Date: May 2008
Location: Philadelphia  PA
Posts: 5
Double Unders? Just jumping rope?

I have just started doing CrossFit. I watch the video tutorials. Some of them do not have any explanation. Are double unders just jumping rope? And why are they called double unders? Am I jumping the rope twice before my feet touch the ground? Can anyone answer this easy question for me?
  Reply With Quote
Old 05-31-2008, 07:57 AM   #2
Steven Anderson
Member Steven Anderson is offline
 
Profile:
Join Date: May 2007
Location: Jacksonville  Fl
Posts: 489
Re: Double Unders? Just jumping rope?

Double unders are when the rope passes twice underneath your feet on a single jump. Start off trying to get one, then two and so on. You can see that today's WOD calls for 50 consecutive DU's then 40, etc. all the way down to 10. DU's are a great workout and builds great speed and coordination.
  Reply With Quote
Old 05-31-2008, 08:06 AM   #3
Keegan Riotto
Member Keegan Riotto is offline
 
Profile:
Join Date: May 2008
Location: Philadelphia  PA
Posts: 5
Re: Double Unders? Just jumping rope?

Thanks Steven. I figured it might just be that. Gotta go buy a rope now. Do you know of any good online sporting goods stores? I can't find a 20lb medicine ball. My gym doesn't have any of this stuff, if they do, it's just wimpy light medicine balls.
  Reply With Quote
Old 05-31-2008, 09:53 AM   #4
Robert Grande
Member Robert Grande is offline
 
Profile:
Join Date: May 2008
Location: College Station  Texas
Posts: 17
Re: Double Unders? Just jumping rope?

Hi everyone,

I'm tacking this onto an existing thread, but I think it is related. If I can't do a "double under", can I just double the number of "single-unders" to approximate the same work rate/exercise load? If this question has been answered in previous discussions, please forgive a "newbie".

Thanks,
Bob
  Reply With Quote
Old 05-31-2008, 10:10 AM   #5
Christopher G. Woods
Member Christopher G. Woods is offline
 
Christopher G. Woods's Avatar
 
Profile:
Join Date: May 2007
Location: Ellicott City  MD
Posts: 2,119
Re: Double Unders? Just jumping rope?

The substitution ratio for single unders to double unders is 3:1.

Last edited by Christopher G. Woods; 05-31-2008 at 10:10 AM.. Reason: spelling
  Reply With Quote
Old 05-31-2008, 11:26 AM   #6
Júlíus Magnússon
Departed Júlíus Magnússon is offline
 
Profile:
Join Date: Oct 2007
 
Posts: 1,282
Re: Double Unders? Just jumping rope?

Quote:
Originally Posted by Robert Grande View Post
Hi everyone,

I'm tacking this onto an existing thread, but I think it is related. If I can't do a "double under", can I just double the number of "single-unders" to approximate the same work rate/exercise load? If this question has been answered in previous discussions, please forgive a "newbie".

Thanks,
Bob
Read the FAQ.

Quote:
Originally Posted by The FAQ
Do tuck jumps. Multiple single-unders in no way compensate for the exertion required for double-unders. Stand with your feet slightly inside the width of your shoulders. Bend your knees and lower your body down 8-12 inches. Explode into the air and bring your knees up to your chest in a tucked position. Upon landing, your feet should be in a strong, dorsi flexed or "toes up" position. Use your whole foot to generate power, not just your toes! Maintain good posture in your upper body. Keep your chest and head up. Don't let your shoulders lean out beyond your knees. This can stress your lower back. Explode off the ground as quickly as possible and repeat for the required number of repetitions.
  Reply With Quote
Old 05-31-2008, 11:52 AM   #7
Victor Putz
Member Victor Putz is offline
 
Profile:
Join Date: Sep 2007
Location: Oxford  UK
Posts: 554
Re: Double Unders? Just jumping rope?

Quote:
Multiple single-unders in no way compensate for the exertion required for double-unders.
This is ABSOLUTELY true. I have 5 minutes of jumping at the end of my workout (2 for single, both feet (which I can do), 2 for single, alternating feet (good for about 20 bounces and then I tangle, working on this) and 1 for double-unders (working on it, can do 3 singles/1 double for a while... and then tangle). Everything feels pretty good until that last minute and I almost immediately begin sucking wind hard. I feel worse within 30 seconds of starting double-unders than I do after 4 minutes of single-jumping.

...which means it must be good to do!
  Reply With Quote
Old 05-31-2008, 12:15 PM   #8
Christopher G. Woods
Member Christopher G. Woods is offline
 
Christopher G. Woods's Avatar
 
Profile:
Join Date: May 2007
Location: Ellicott City  MD
Posts: 2,119
Re: Double Unders? Just jumping rope?

You know, I really have to disagree with the FAQ on this one. I think Tuck Jumps are a poor substitution for Double Unders, because they lack the coordination and timing component. As far as exertion goes, I honestly don't jump that much higher on my Double Unders than I do for my singles; I just turn the rope faster.
  Reply With Quote
Old 05-31-2008, 01:13 PM   #9
James Forshaw
Member James Forshaw is offline
 
James Forshaw's Avatar
 
Profile:
Join Date: Sep 2007
Location: Liverpool  England
Posts: 658
Re: Double Unders? Just jumping rope?

I have to stick up for tuck jumps there, they are truly horrible exertion-wise. Even if they take a lot less skill to execute.
__________________
23 - M - 5"10/77kg: Log
  Reply With Quote
Old 05-31-2008, 03:33 PM   #10
Steven Anderson
Member Steven Anderson is offline
 
Profile:
Join Date: May 2007
Location: Jacksonville  Fl
Posts: 489
Re: Double Unders? Just jumping rope?

Absolutely, tuck jumps are brutal. 50 DU's are way easier than 50 tuck jumps though yes, they are less technical.

Keegan, as far as buying a rope, go cheap. I picked one up from a Dollar-type store years ago and I still have it and it's ridiculously fast. Avoid the expensive ropes, they're usually slower and heavier, you don't need all that. If you're looking for a medicine ball then check rosstraining.com. (w/f/s) He has a tutorial on how to build your own. The guy's an animal and very innovative when it comes to building and/or utilizing cheap and effective equipment.
  Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Moving from single/double unders to double/double unders? Karin Jonczak Exercises 8 02-21-2008 05:17 AM
Double Unders Kent Stader Exercises 11 01-25-2008 03:39 PM
Looking For A Good Rope For Double Unders William Gottshall Equipment 9 11-13-2007 10:18 AM
Double Unders Steven Bourdage Exercises 5 10-06-2007 05:13 PM
60 Double Unders - PR Chris Chaplow Testimonials 6 09-29-2007 01:00 AM


All times are GMT -7. The time now is 10:34 PM.


CrossFit is a registered trademark of CrossFit Inc.