CrossFit Discussion Board  

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

Fitness Theory and Practice. CrossFit's rationale & foundations. Who is fit? What is fitness?

Thread Tools
Old 03-29-2007, 11:27 AM   #1
Garth Reed
Member Garth Reed is offline
Join Date: Oct 2006
Location: Centennial  Colorado
Posts: 40
I have no idea what to title this post. Regardless, for years I have had this issue where my ability to push through an exercise deminishes rapidly. For example, if I were doing a set of deadhang pullups I will get to a point where my muscles will just stop. There is not a tapered off loss of power. Bench is another example. If I were doing 30 reps and my muscles were fatigued, my push would just stop. It is a bit difficult to explain but when I showed a friend, he was amazed at how litereal my statement of the muscles just stopping is. It is seriously like a wall that I hit. Another friend who used to do competition body building thought it was strange as well.

I hope this is not too confusing but I would like to see if anyone else has this issue. I should note that a rest will allow me to get back into it.
  Reply With Quote
Old 03-29-2007, 11:54 AM   #2
Steven Low
Member Steven Low is offline
Steven Low's Avatar
Join Date: Sep 2005
Location: silver spring  maryland
Posts: 12,221
That does seem strange.

It might not actually be a muscular fatigue thing but maybe a CNS one instead if that's the case. Muscles will generally have at least some ATP around to make some "less-strong" contractions as you grow more fatigued. On the other hand, if you're depleting the ion gradients that fire electrical impulses to tell your muscles to contract there is a threshold beyond which if the electrical impulses are below a certain voltage the muscles will not fire at all. That would be my guess.
  Reply With Quote

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
WOD to failure Jeremy Jones Workout of the Day 10 09-10-2008 04:00 PM
Need post workout energy/muscle shake... Ideas? Jeryd Leuck Nutrition 6 06-15-2006 09:10 PM
Muscle Failure Jason Billows Fitness 3 09-17-2005 07:08 AM
TOTAL failure at single leg squats! Anyone go from failure to mastery with these? HOW?! Tim Morrison Exercises 26 01-18-2005 05:39 PM
Muscle failure Matt Hilliard Fitness 21 09-26-2004 09:02 AM

All times are GMT -7. The time now is 01:55 PM.

CrossFit is a registered trademark of CrossFit Inc.