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720 Views 3 Replies Latest reply: Sep 8, 2013 2:10 PM by crl8686
justamaniac Legend 197 posts since
May 30, 2007
Currently Being Moderated

Sep 3, 2013 9:44 AM

Need opinions re long runs...

I'm looking for opinions re long runs as it relates to marathon training:  Is it better, worse, or same as, to replace a 20 mile run with 16 miles one day and 5-6 miles the next?

I've done both, and there are good reasons for both, but I'm interested in other runner's opinions.


I like doing the 20 mile distance because I think that it helps build endurance.  The downside is that the opportunity for injury increases with high mileage like that.  On the other hand, I can run a 16 miler a skooch more aggresively, with less risk of injury, and then run another 5-6 miles the next day.

 

But I wonder if I get the same benefit (endurance-training) from doing the 16/5 miles split vs banging out a full 20 miles at one whack.

 

All thoughts are welcome. thanks

 

-bill

http://runningthrutime.blogspot.com

  • lenzlaw Community Moderator 10,400 posts since
    Jan 18, 2008
    Currently Being Moderated
    1. Sep 3, 2013 7:07 PM (in response to justamaniac)
    Need opinions re long runs...

    There are differing opinions on this sort of thing.  I have read, in the past, that once you hit 16 miles, more doesn't make much difference.  I haven't read it lately and I'm not sure how true it is.  A lot of coaches think that LSD is key to marathon training.  Some even the farther the better - Galloway for instance.  On the other hand, the Hansons I think, advocate that running up to 16 at close to marathon pace is good preparation. 

    http://www.runnersworld.com/race-training/marathoning-hansons-way

    So you could go either way and presumably have success.





    Len

  • crl8686 Legend 1,302 posts since
    Nov 11, 2007
    Currently Being Moderated
    3. Sep 8, 2013 2:10 PM (in response to justamaniac)
    Need opinions re long runs...

    Regarding "divided" runs: I'd asked a related question several years ago while training for my first marathon. The general consensus of the responses (from people who are a lot more experienced at marathon distance than me) was that there is simply no substitute for a long continuous run. Dividing the long run into two parts will give you the same overall mileage, but it will not prepare you for running in a state of near-total or total glycogen depletion (20 mi is fast approaching the Wall) or for the sheer stress of pounding your body and being on your feet for 20 mi straight.





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