Running leads to fatness if you stop, even without overeating...

Discussion in 'Fitness & Nutrition' started by Genghis.Tron, May 8, 2007.

Thread Status:
Not open for further replies.
  1. Genghis.Tron

    Genghis.Tron New Member

    Joined:
    Oct 14, 2002
    Messages:
    5,188
    Likes Received:
    0
    Location:
    Great White North
    http://jap.physiology.org/cgi/content/short/102/4/1341

    It was done on rats, but some studies show that it happens in humans too (taken from the discussion part of the article) :

    Their hypothesis is that "physical activity performed voluntarily slowed the growth of abdominal adipose tissue, and the ensuing physical inactivity permitted catch-up growth".

    It might be a possible alternative explanation as to why some people gain fat back after a diet... And it might be interesting for bodybuilders to know that taking a break after contest dieting could be a bad idea even though it would be interesting to see if it applies only to running (and other forms of cardio) or to other kinds of activity too especially since it's hyperplasia (formation of new fat cells) and not hypertrophy of old fat cell. And also because the amount of cals overeaten doesn't matter :

    "In summary, physical inactivity, independent of excess caloric intake, is associated with rapid increases abdominal adipose tissue masses. Furthermore, adipocyte hyperplasia in epididymal fat was present by the seventh day of inactivity in the ad libitum-eating group."

    Their explanation is this one but I understand nothing so don't ask :p
     
  2. MaineSucks

    MaineSucks OT Supporter

    Joined:
    Jan 5, 2005
    Messages:
    39,645
    Likes Received:
    8
    Location:
    954
    take that... fucking assholes
     
  3. jonno

    jonno New Member

    Joined:
    Jun 3, 2003
    Messages:
    63,823
    Likes Received:
    2
    Location:
    fort sam
  4. kit99bar

    kit99bar USPA Class 2, weak, old man!

    Joined:
    Jul 18, 2001
    Messages:
    9,166
    Likes Received:
    11
    heck yah :rofl:
     
  5. y1997

    y1997 Made in the U.S.S.R.

    Joined:
    Apr 1, 2006
    Messages:
    6,065
    Likes Received:
    1
    Location:
    Detroit
  6. bear

    bear frankly rover i dont give a "woof

    Joined:
    Feb 15, 2006
    Messages:
    2,660
    Likes Received:
    0
    Location:
    MI
    throwin too many big words at me...
     
  7. Ricer

    Ricer OT Supporter

    Joined:
    Sep 18, 2004
    Messages:
    1,686
    Likes Received:
    0
    yea honestly somebodys gotta cliff that
     
  8. Genghis.Tron

    Genghis.Tron New Member

    Joined:
    Oct 14, 2002
    Messages:
    5,188
    Likes Received:
    0
    Location:
    Great White North
    Cliff: read thread title.
     
  9. WPInerd

    WPInerd New Member

    Joined:
    Apr 5, 2004
    Messages:
    3,247
    Likes Received:
    0
    Location:
    Worcester, MA
    wow, i better not stop :eek4:
     
  10. Daiz4yota

    Daiz4yota OT's ENT/Facial Plastics MD OT Supporter

    Joined:
    Mar 3, 2007
    Messages:
    27,258
    Likes Received:
    46
    so basically if youre gonna run, make sure its gonna be a consistent thing
     
  11. Genghis.Tron

    Genghis.Tron New Member

    Joined:
    Oct 14, 2002
    Messages:
    5,188
    Likes Received:
    0
    Location:
    Great White North
    Or make sure it's not ;)
     
  12. el es dee

    el es dee ...through a cloud of chalk and the midst of pain.

    Joined:
    Jan 1, 2006
    Messages:
    6,534
    Likes Received:
    0
    Location:
    Pittsburgh, PA
    wouldnt this apply to any form of endurance training? like say MMA?
     
  13. evolude

    evolude OT Supporter

    Joined:
    Feb 10, 2004
    Messages:
    19,005
    Likes Received:
    6
    that would explain my bf% increase... ugh
     
  14. y1997

    y1997 Made in the U.S.S.R.

    Joined:
    Apr 1, 2006
    Messages:
    6,065
    Likes Received:
    1
    Location:
    Detroit
    Fuck cardio.
     
  15. DTR rex

    DTR rex New Member

    Joined:
    Dec 30, 2004
    Messages:
    14,518
    Likes Received:
    0
    Location:
    Chi-Town
    I would think this would apply to any form of cardio that was given up though. Either way, it sucks because I refuse to run inside and when Chicago winter hits the last I want to do is run outdoors in 10 degree weather.
     
  16. Mitchj

    Mitchj OT Supporter

    Joined:
    May 2, 2005
    Messages:
    112,066
    Likes Received:
    76
    It also leads to extensive fat loss when your doing it. So its worthwhile in the longrun :dunno:
     
  17. evolude

    evolude OT Supporter

    Joined:
    Feb 10, 2004
    Messages:
    19,005
    Likes Received:
    6
    yeah this is just another excuse to me... going to run again when my knee gets better
     
  18. Genghis.Tron

    Genghis.Tron New Member

    Joined:
    Oct 14, 2002
    Messages:
    5,188
    Likes Received:
    0
    Location:
    Great White North
    Not necessarily an excuse not to run but more like another reason not to stop doing exercise. Our bodies are made to move, not sit 10h a day and walk 2 min to our car.

    The study was done on young animals too, so it's another question if these effects are the same in older animals. There are still the human studies in which it happened but to a lesser extent.

    I think that it's also interesting to note that running inhibits glycerol-3-phosphate acyltransferase (let's call it GPAT) which is, from what I understand, an enzyme than builds triacylglycerol and blunts fat burning. Mice who have too much GPAT weigh more than those with low GPAT and a higher TG blood level among other stuff. So basically, if running and other forms of exercise inhibit GPAT, it would be harder to gain fat and it would lower blood TG.
    Its activity seems also to be boosted when going on a high-carb/low-fat diet after fasting and by insulin in diabetics.

    For those who care...
    http://mcb.asm.org/cgi/content/full/22/23/8204
    http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=9370312&dopt=Abstract
     
  19. Elfling

    Elfling New Member

    Joined:
    Aug 10, 2004
    Messages:
    36,575
    Likes Received:
    0
    If I were a diabetic mouse, I'd have it made :o
     
  20. Memor

    Memor Active Member

    Joined:
    Jun 22, 2006
    Messages:
    73,022
    Likes Received:
    0
    Location:
    NYC
    so i'm gon' take that as disrespeck
     
  21. Hamster

    Hamster Active Member

    Joined:
    Aug 25, 2003
    Messages:
    3,628
    Likes Received:
    0
    Location:
    San Diego, CA
    watch your mouf, and help me with sale
     
  22. Genghis.Tron

    Genghis.Tron New Member

    Joined:
    Oct 14, 2002
    Messages:
    5,188
    Likes Received:
    0
    Location:
    Great White North
    Meh, it's only one enzyme so it would be another question if the gains would be significant. Understanding some stuff like that though can help us understand that we'd be better not to stop exercising, I think that's the bottom line.
     
  23. Elfling

    Elfling New Member

    Joined:
    Aug 10, 2004
    Messages:
    36,575
    Likes Received:
    0
    Oh yeah :) I was just being goofy.
     
  24. Genghis.Tron

    Genghis.Tron New Member

    Joined:
    Oct 14, 2002
    Messages:
    5,188
    Likes Received:
    0
    Location:
    Great White North
    Well, on a side note, if we all had a treadmill and high desks at our job so we could walk slowly all day, just like mice who run in their little thing, we'd be a lot better. So there's much we can learn from them :p
     
  25. michael

    michael FLORIDA > *

    Joined:
    Dec 21, 2001
    Messages:
    81,941
    Likes Received:
    456
    Location:
    paradise
    seems obvious enough..

    eat food + exercise, then stop the exercise while maintaining the same diet and you're bound to get fat.. its not rocket surgery.
     
Thread Status:
Not open for further replies.

Share This Page