tag:blogger.com,1999:blog-2744198919800580693.post4137723114052677745..comments2023-10-24T02:10:18.540-07:00Comments on kayry - running engineer: Taper & Recovery Trendskayryhttp://www.blogger.com/profile/14546047982491086253noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-2744198919800580693.post-3319228558701239872008-02-13T13:17:00.000-08:002008-02-13T13:17:00.000-08:00kanny - you've really turned on an interesting lin...kanny - you've really turned on an interesting line of research. Amazing all the things that come up on google for - Activation AMPK carb deplete.<BR/><BR/>One article I came across make me think that exersizing at a fully depleted glucose state is like focused training specific to what it is like at the end of the marathon when the glucose is depleted - by stressing the body in this state the body adapts to better handle this state - I guess by increasing mitochondiral density - fascinating stuff.kayryhttps://www.blogger.com/profile/14546047982491086253noreply@blogger.comtag:blogger.com,1999:blog-2744198919800580693.post-36320516529573738472008-02-13T06:20:00.000-08:002008-02-13T06:20:00.000-08:00I understood the corrilation to altitude training ...I understood the corrilation to altitude training to be a stretch - all the theories are a stretch. Summarizing to theories to date:<BR/><BR/>1) Weight loss from 10 day atkins diet gave extra speed.<BR/>2) Extra Abondance of Glycogen from deplete/load caused lower fat burn requirement and thus lower oxygen requirement and therefore lower heartrate (oxygen delivery).<BR/>3) AMPK activation by the deplete caused greater mitocondrial density again reducing oxygen requirement.<BR/>4) Deplete/load stimulated higher redbloodcell count (oxygen carriers) enabling higher oxygen delivery for lower heartrate.<BR/>5) Just had a good day in a familiar low stress environment with low fatigue from a good taper.<BR/><BR/>I am tending to lean toward combo 1,5 answers but whatever the reason you can bet I will be trying to duplicate this again in Boston.kayryhttps://www.blogger.com/profile/14546047982491086253noreply@blogger.comtag:blogger.com,1999:blog-2744198919800580693.post-23704071970487996802008-02-12T13:51:00.000-08:002008-02-12T13:51:00.000-08:00I'm treading dangerous water when I compare it to ...I'm treading dangerous water when I compare it to altitude, though, because it's pretty established that it's the body's ability to increase hemoglobin/red blood cells (the whole natural EPO thing) that is the benefit of altitude. Then again, I feel like that's just scratching the surface. There's so much more to the adaptation than I can imagine. Thinking about it all simulates altitude dizzyness.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2744198919800580693.post-9495929801663888192008-02-12T12:46:00.000-08:002008-02-12T12:46:00.000-08:00kanny - thanks for the info - I think I need a PHD...kanny - thanks for the info - I think I need a PHD to understand even half of the letsrun thread :D. I read most of the info and scanned some. <BR/><BR/>Probably take some soak time and reread to really get a reasonable fraction of understanding from this but I think the message I gather is that the deplete may have caused a stress on the muscles similar to a couple weeks of altitude training that caused a response of increasing mitochondiral activity which in turn enabled a higher effecent energy production for use in the race.<BR/><BR/>This exersize physiology stuff is interesting and confusing - like I said - I think I need to reread a few times.<BR/><BR/>Thanks again for posting the info.<BR/><BR/>and I do think the home-field advantage helps explain NYC to Houston differences - not so much training runs to race day differences although they can be explained somewhat by the taper (less fatigue at the race).kayryhttps://www.blogger.com/profile/14546047982491086253noreply@blogger.comtag:blogger.com,1999:blog-2744198919800580693.post-1749507033026563152008-02-12T10:19:00.000-08:002008-02-12T10:19:00.000-08:00Inside the Black Box (PDF)That link didn't paste v...<A HREF="http://www.physoc.org/publications/pn/subjectcollections/pncollectionspdfs/Skeletalmuscleexercise/2004/Wackerhage.PDF" REL="nofollow">Inside the Black Box (PDF)</A><BR/><BR/>That link didn't paste very well.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2744198919800580693.post-55091575235207293502008-02-12T10:00:00.000-08:002008-02-12T10:00:00.000-08:00I found these a year ago and they have become my m...I found these a year ago and they have become my mantra: <BR/><BR/>AMPK is activated by any stress that inhibits ATP production or increases ATP consumption. This includes hypoxia, heat shock, exercise, and glucose deprivation. AMPK is also activated by the hormones leptin and adiponectin. As its name suggests, AMP directly activates AMPK.<BR/><BR/>I also reference this pdf occassionally as a reminder: http://www.physoc.org/publications/pn/subjectcollections/pncollectionspdfs/Skeletalmuscleexercise/2004/Wackerhage.PDF<BR/><BR/>I would never be so bold as to try a 10 day depletion - but, now I'll definitely attempt it. It almost seems like you stimulated AMPK in the same way that altitude (hypoxia) does. And, much like 3 days at altitude doesn't seem to have *too* much of an effect, I think the 10 days seems to really force the body to make changes (based on what I've read, it seems like mitochondria has some sort of 3 day cycle - see http://www.letsrun.com/forum/flat_read.php?board=1&id=271683&thread=269985). However, much like with everything, I'm wondering when the law of diminishing returns start to kick in? Is "10 days" optimal? Awesome stuff. <BR/><BR/>Re-reading your blogs and training, it really is quite the wonder - what an amazing mystery/puzzle! However, I would take off another minute or 2 for improvement from NYC because of the "hometown" and familiarity factor. You flew in the day/night before for NYC!Anonymousnoreply@blogger.com