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Shortest LSR to run a marathon?

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Comments

  • Closed Accounts Posts: 2,051 ✭✭✭MCOS


    Interesting thread. I wouldn't mind some advice here. As a Marathon is not my main focus this year I am not following any kind of Marathon program for the DM.

    Mileage roughly 20-25 per week up to now. Next week is a half ironman so I'll be running 13.1 off the bike. So low running mileage and plenty of cycling up to now.

    My problem lies in selecting the optimum pace and getting the most out of 4 weeks Marathon prep.

    So 4 long runs... how can I get the best out of them? Also, what would be the best indication that I could hold a target split for 26.2?

    Thanks :)


  • Registered Users, Registered Users 2 Posts: 3,545 ✭✭✭tunguska


    stevieward wrote: »
    Thats what im following. 16 this weekend...

    im doing all my training at what i would consider race pace though... is this clever?

    Personally I think its grand. I mean those race pace runs are brutal but they condition you brilliantly.
    Have you read "Daniels' running formula?" (jack Daniels) he gives a lot of information about pacing and draws up a top class marathon training schedule. Not for the faint of heart though. For example one session involves the following:

    If you plan to run the marathon at 6min/mile this is one long run you'd do:

    2 miles easy pace(7:10/mile)
    5 miles at 6:20
    5 miles at 6:13
    5 miles at 6:06
    5 miles at 6:00


    So a total of 22 miles with 15 of those very close to race pace and 5 miles at the end of those, at race pace.

    Like I said, not for the faint of heart.


  • Registered Users, Registered Users 2 Posts: 638 ✭✭✭Rusty Cogs 08


    stevieward wrote: »
    Thats what im following. 16 this weekend...

    im doing all my training at what i would consider race pace though... is this clever?

    I'd have to refer you to amadeus's post a few back which describes why you shouldn't do your LSR's at race pace.

    Daniels predator runs referenced by Tunguska (speed increasing as you move through the session) are IMO only for seasoned runners who are not prone to injury and simply have far more miles behind them at advanced pace (circa 6' miles) and everything that goes with that (lighter, better biomechanics, more attuned to their bodies).

    Regarding LSR's at race pace, just because you can, doesn't mean you should.


  • Closed Accounts Posts: 13 stevieward


    I'd have to refer you to amadeus's post a few back which describes why you shouldn't do your LSR's at race pace.

    Daniels predator runs referenced by Tunguska (speed increasing as you move through the session) are IMO only for seasoned runners who are not prone to injury and simply have far more miles behind them at advanced pace (circa 6' miles).

    Regarding LSR's at race pace, just because you can, doesn't mean you should.

    I actually find it very difficult to slow down :-)

    its my first marathon and at the moment im running 8 min miles. maybe 10 second or so either way but not much more. I have tried to go slower but find that after only a few strides i get back into my natural rythm which is working out at 8 mins/mile. its just way too much concentration to run slowly.

    But i suppose why i asked is that im afraid my body is putting up with these times at the moment but once i get to 18 and 20 miles it will start to complain and may even shut down thus ruining my chances of actually competing the marathon


  • Closed Accounts Posts: 22 run like a fox


    stevieward wrote: »
    I actually find it very difficult to slow down :-)

    its my first marathon and at the moment im running 8 min miles. maybe 10 second or so either way but not much more. I have tried to go slower but find that after only a few strides i get back into my natural rythm which is working out at 8 mins/mile. its just way too much concentration to run slowly.

    But i suppose why i asked is that im afraid my body is putting up with these times at the moment but once i get to 18 and 20 miles it will start to complain and may even shut down thus ruining my chances of actually competing the marathon

    As long as you're finding the pace easy there's no need to slow down, stick with the 8 minute pace. If you're struggling with it then you've got to slow down.


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  • Registered Users, Registered Users 2 Posts: 1,691 ✭✭✭cfitz


    stevieward wrote: »
    I actually find it very difficult to slow down :-)

    its my first marathon and at the moment im running 8 min miles. maybe 10 second or so either way but not much more. I have tried to go slower but find that after only a few strides i get back into my natural rythm which is working out at 8 mins/mile.

    If this is true, then I don't see how you could be running too quickly. What benefit could there be to running slower than is comfortable?


  • Closed Accounts Posts: 13 stevieward


    cfitz wrote: »
    If this is true, then I don't see how you could be running too quickly. What benefit could there be to running slower than is comfortable?

    because i am afraid that even though i am running comfortably at the moment, when i get to longer training runs (18 or 20) i will be sorry that i have been running the first 14 or 15 miles of that run faster than i might have needed. And then maybe injure myself trying to finish my LTR by forcing it.


  • Registered Users, Registered Users 2 Posts: 1,691 ✭✭✭cfitz


    stevieward wrote: »
    because i am afraid that even though i am running comfortably at the moment, when i get to longer training runs (18 or 20) i will be sorry that i have been running the first 14 or 15 miles of that run faster than i might have needed. And then maybe injure myself trying to finish my LTR by forcing it.

    Don't worry about that. Take it as it comes. How do you feel towards the end of your longer runs at the moment? The idea of going slower is to preserve your body (aside from that, quicker is generally better), I would think that running at an uncomfortably slow pace is harder on your body than running at a comfortable pace.


  • Registered Users, Registered Users 2 Posts: 638 ✭✭✭Rusty Cogs 08


    Another option is to invest in a Heart Rate Monitor and run your LSR's according to your optimal HR (73% - 83% of your max according to P&D). If you find that 8 min miles has you in this zone then stay there and the longer runs should look after themselves (in the latter stages). If you find you have to slow down for the last few miles I wouldn't worry about it. If you've run the first 75% in your optimal HRZ then I doubt the wheels will come off.

    If on the other hand 8 min miles puts you into a higher HRZ then that's a good indication that running your long runs at this pace will increase the risk of fading in the latter stages. In that case, you just might have to force yourself to run a bit slower.


  • Closed Accounts Posts: 13 stevieward


    cfitz wrote: »
    Don't worry about that. Take it as it comes. How do you feel towards the end of your longer runs at the moment? The idea of going slower is to preserve your body (aside from that, quicker is generally better), I would think that running at an uncomfortably slow pace is harder on your body than running at a comfortable pace.

    i feel great at the end of them... thats what im waiting to change!


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  • Registered Users, Registered Users 2 Posts: 638 ✭✭✭Rusty Cogs 08


    Well the schedule above only increases in 2 mile increments so if you feel great at the end of each one I wouldn't be too afraid of the next step up. On the day the last six miles are unknown territory for most first time marathoners but if your LSR's have all gone well then I wouldn't fret.

    no fretting.


  • Closed Accounts Posts: 5,095 ✭✭✭--amadeus--


    tunguska wrote: »
    So a total of 22 miles with 15 of those very close to race pace and 5 miles at the end of those, at race pace.

    Like I said, not for the faint of heart.

    Which schedule is that from? I have teh Daniels book here and I can't find that particular workout in the marathon plans :confused:
    cfitz wrote: »
    ...aside from that, quicker is generally better...

    I wouldn't agree with that at all, I'm afraid. I've no doubt that at shorter distances then over-race speed training may be important but in a marathon at novice level endurance is king. Even marathon runners chasing fast times need the endurance to get them past the distance first and speed later. For example my PMP is 6:45 - 6:50 per mile. My 10k pb is a little under 6:10 per mile. So my speed isn't the issue. My speed endurance (ability to maintain a sub maximal pace for teh required distance) is a huge problem though. And running quicker than race pace will not automatically improve my speed endurance. P&D for example have proven that VO2 max (the best predictor of success at middle distance running) is much less significant at marathon distance. Therefore training to improve VO2 max (short intervals) is largely irrelevant for almost all marathon runners.

    As Rusty hints above working at different HR intensities conditions different systems. The proven best way to improve CV fitness, endurance, resilience, economy and efficiency for marathon running is through LSRs and easy runs, all at sub race pace. I would estimate that anything between 60 - 80% of my mileage in any given week is slower than PMP and that's pretty normal for a marathon plan.


  • Registered Users, Registered Users 2 Posts: 1,691 ✭✭✭cfitz


    Which schedule is that from? I have teh Daniels book here and I can't find that particular workout in the marathon plans :confused:



    I wouldn't agree with that at all, I'm afraid. I've no doubt that at shorter distances then over-race speed training may be important but in a marathon at novice level endurance is king. Even marathon runners chasing fast times need the endurance to get them past the distance first and speed later. For example my PMP is 6:45 - 6:50 per mile. My 10k pb is a little under 6:10 per mile. So my speed isn't the issue. My speed endurance (ability to maintain a sub maximal pace for teh required distance) is a huge problem though. And running quicker than race pace will not automatically improve my speed endurance. P&D for example have proven that VO2 max (the best predictor of success at middle distance running) is much less significant at marathon distance. Therefore training to improve VO2 max (short intervals) is largely irrelevant for almost all marathon runners.

    As Rusty hints above working at different HR intensities conditions different systems. The proven best way to improve CV fitness, endurance, resilience, economy and efficiency for marathon running is through LSRs and easy runs, all at sub race pace. I would estimate that anything between 60 - 80% of my mileage in any given week is slower than PMP and that's pretty normal for a marathon plan.

    All that is completely irrelevant. I quite clearly said that the reason for running slow is to preserve the body. It's very simple: if injury prevention wasn't an issue, it would be better to do cover 30 miles in your 3 hour training run than to cover 20 miles in 3 hours.


  • Closed Accounts Posts: 5,095 ✭✭✭--amadeus--


    cfitz wrote: »
    All that is completely irrelevant. I quite clearly said that the reason for running slow is to preserve the body. It's very simple: if injury prevention wasn't an issue, it would be better to do cover 30 miles in your 3 hour training run than to cover 20 miles in 3 hours.

    :confused:

    I'm trying to find a polite way to put this but I can't. The reason for running slow is NOT to preserve the body.

    The point of running slowly is to train your body to work more efficiently, for example by accessing fat as a fuel source and so preserving glycogen. It's also to accumulate time on your feet. Again back to P&D and they peak at 22 - 24 miles with the advice that your longest run should last as long as your predicted race time. It's about building physical and mental endurance. Yes running below PMP will "preserve your body" in the sense that it won't do as much damage as long runs at race pace but you're putting the cart before teh horse to say it is a reason for running slow. The main driver is to run long (both mileage and distance). Running slow is a by product of that need.

    And over distance training (30 miles in 3 hours rather than 20) is strictly for teh elites. I don't know if you have access to it but a good start off point is HH book "Marathon: The ultimate Training and Racing Guide", chapter 10, p123 - 136.


  • Registered Users, Registered Users 2 Posts: 384 ✭✭ss43


    :confused:

    I'm trying to find a polite way to put this but I can't. The reason for running slow is NOT to preserve the body.

    The point of running slowly is to train your body to work more efficiently, for example by accessing fat as a fuel source and so preserving glycogen. It's also to accumulate time on your feet. Again back to P&D and they peak at 22 - 24 miles with the advice that your longest run should last as long as your predicted race time. It's about building physical and mental endurance. Yes running below PMP will "preserve your body" in the sense that it won't do as much damage as long runs at race pace but you're putting the cart before teh horse to say it is a reason for running slow. The main driver is to run long (both mileage and distance). Running slow is a by product of that need.

    And over distance training (30 miles in 3 hours rather than 20) is strictly for teh elites. I don't know if you have access to it but a good start off point is HH book "Marathon: The ultimate Training and Racing Guide", chapter 10, p123 - 136.

    If the speed is so slow that it is uncomfortable it is unlikely to be very efficient. The biomechanics would be unnatural which could lead to problems. At such a speed you could speed up and still be burning fat stores (and thus preserving glycogen).


  • Closed Accounts Posts: 5,095 ✭✭✭--amadeus--


    Absolutely, to know anything for sure you need to see someone run in the flesh.

    One thing I've seen a lot of new runners posting though is that they either have just one speed that all runs are at, or two (slow and flat out). Running more slowly feels weird for most people, rather than uncomfortable and so they don't bother and so may not get the full benefit of the session.


  • Registered Users, Registered Users 2 Posts: 603 ✭✭✭Poncherello


    MCOS wrote: »
    Interesting thread. I wouldn't mind some advice here. As a Marathon is not my main focus this year I am not following any kind of Marathon program for the DM.

    Mileage roughly 20-25 per week up to now. Next week is a half ironman so I'll be running 13.1 off the bike. So low running mileage and plenty of cycling up to now.

    My problem lies in selecting the optimum pace and getting the most out of 4 weeks Marathon prep.

    So 4 long runs... how can I get the best out of them? Also, what would be the best indication that I could hold a target split for 26.2?

    Thanks :)

    Hey Amadeus I'm in same boat as MCOS above, would love to hear your thoughts ..


  • Registered Users, Registered Users 2 Posts: 6,339 ✭✭✭How Strange


    One thing I've seen a lot of new runners posting though is that they either have just one speed that all runs are at, or two (slow and flat out). Running more slowly feels weird for most people, rather than uncomfortable and so they don't bother and so may not get the full benefit of the session.

    yep, that was definitely my problem last year and it contributed to me doing a very slow marathon (just under 5hrs).

    This year I've been doing speed work, running with groups with a faster pace than me and started using the garmin forerunner 50 which shows my different speeds so now I'm more aware of my lsr pace, my medium run pace, fast run pace and race pace (although this is still changing but I have a fair idea).


  • Closed Accounts Posts: 5,095 ✭✭✭--amadeus--


    Hey Amadeus I'm in same boat as MCOS above, would love to hear your thoughts ..

    Could be a popular topic, I'll start a new thread on it...


  • Registered Users, Registered Users 2 Posts: 1,691 ✭✭✭cfitz


    :confused:

    I'm trying to find a polite way to put this but I can't. The reason for running slow is NOT to preserve the body.

    I disagree.
    The point of running slowly is to train your body to work more efficiently, for example by accessing fat as a fuel source and so preserving glycogen.

    Provided you spend the same length of time on your feet, how does running slowly do this moreso than running quickly?
    It's also to accumulate time on your feet. Again back to P&D and they peak at 22 - 24 miles with the advice that your longest run should last as long as your predicted race time. It's about building physical and mental endurance. Yes running below PMP will "preserve your body" in the sense that it won't do as much damage as long runs at race pace but you're putting the cart before teh horse to say it is a reason for running slow. The main driver is to run long (both mileage and distance). Running slow is a by product of that need.

    The only reason running quickly prevents accumulating time on your feet is injury/fatigue risk.
    And over distance training (30 miles in 3 hours rather than 20) is strictly for teh elites. I don't know if you have access to it but a good start off point is HH book "Marathon: The ultimate Training and Racing Guide", chapter 10, p123 - 136.

    Not relevant.


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  • Closed Accounts Posts: 5,095 ✭✭✭--amadeus--


    I'm don't really want to get into a tit for tat, post dissecting argument with you on it because at this stage I'm just repeating myself and it's up to people to read the thread and make thier own minds up.

    There are substantial differences between running quickly and running at LSR pace. They have been outlined (at some length) above - for example at lower speeds more fat is consumed as an energy source, running quickly more glycogen is burned. During teh marathon glycogen preservation is very important so "teaching" your body to burn fat is very important. Running fast doesn't do this. There are other advantages (and yes, injury prevention and recovery time are part of that).

    The reason I gave a book and chapter reference is to give you a jump off point to research this topic and to cite my sources (unless you're saying that what the books say is irrelevant?) I'm not just pulling this stuff out of my backside for the craic - HH, Glover, Daniels, Noakes and P&D *all* emphasise the importance of the LSR. All emphasise running the vast majority of your LSRs at below race pace. Every single person on this thread who has actually run a marathon has said that they run long.

    I'm not sure why this is so controversial?


  • Registered Users, Registered Users 2 Posts: 3,545 ✭✭✭tunguska


    Which schedule is that from? I have teh Daniels book here and I can't find that particular workout in the marathon plans :confused:



    I wouldn't agree with that at all, I'm afraid. I've no doubt that at shorter distances then over-race speed training may be important but in a marathon at novice level endurance is king. Even marathon runners chasing fast times need the endurance to get them past the distance first and speed later. For example my PMP is 6:45 - 6:50 per mile. My 10k pb is a little under 6:10 per mile. So my speed isn't the issue. My speed endurance (ability to maintain a sub maximal pace for teh required distance) is a huge problem though. And running quicker than race pace will not automatically improve my speed endurance. P&D for example have proven that VO2 max (the best predictor of success at middle distance running) is much less significant at marathon distance. Therefore training to improve VO2 max (short intervals) is largely irrelevant for almost all marathon runners.

    If you go to the section on "marathon pacing" you'll find that workout, I think its chapter 5. He uses the VDOT value as a basis for this session. So if you look up your VDOT value and then pick one thats 4 points below yours then thats your starting point for the first few miles block. Then you take the next VDOT value and repeat, and so on until you come to your own race pace value. I'll have a look at the book later and give you the exact page.

    In regards to the issues about pacing, I think we could go on all night arguing whats the best approach: You believe in the LSR approach I believe in the race pace approach. I suppose when it comes down to it what works for one person doesnt work for another and ultimatley nobody can tell you what your limits are and what sort of approach you should take. Thats something every person must find out for themselves. So I think we'll just have to agree to disagree:)


  • Registered Users, Registered Users 2 Posts: 362 ✭✭MREGAN


    I ran the belfast having only got up to 15miles. Didnt stick to a plan and hardly ran much to be honest. I took it too easy at the start worrying about hitting the wall. I still managed 4hrs 20mins

    I am doing the causeway marathon and only done a 15 miler so far. 1 month to go and I am going to try and ramp it up. This one is all off road and has quite a bit of elevation for a coastal run. One thing I wont be looking at is time for this one.


  • Registered Users, Registered Users 2 Posts: 1,691 ✭✭✭cfitz


    I'm don't really want to get into a tit for tat, post dissecting argument with you on it because at this stage I'm just repeating myself and it's up to people to read the thread and make thier own minds up.

    There are substantial differences between running quickly and running at LSR pace. They have been outlined (at some length) above - for example at lower speeds more fat is consumed as an energy source, running quickly more glycogen is burned. During teh marathon glycogen preservation is very important so "teaching" your body to burn fat is very important. Running fast doesn't do this. There are other advantages (and yes, injury prevention and recovery time are part of that).

    The reason I gave a book and chapter reference is to give you a jump off point to research this topic and to cite my sources (unless you're saying that what the books say is irrelevant?) I'm not just pulling this stuff out of my backside for the craic - HH, Glover, Daniels, Noakes and P&D *all* emphasise the importance of the LSR. All emphasise running the vast majority of your LSRs at below race pace. Every single person on this thread who has actually run a marathon has said that they run long.

    I'm not sure why this is so controversial?

    It's not controversial. I haven't given an opinion on how long someone should run for, I don't think I've even given an opinion on how quickly someone should run. I merely said that 'in general it is better to run quickly than slowly'. And it was you who decided to base a whole post on something that was in parentheses in one of my posts.

    I don't believe that I will burn more fat by running slowly for 3 hours than running quickly for 3 hours.

    If I am wrong on this explain it to me.


  • Closed Accounts Posts: 5,095 ✭✭✭--amadeus--


    cfitz wrote: »
    I don't believe that I will burn more fat by running slowly for 3 hours than running quickly for 3 hours.

    If I am wrong on this explain it to me.
    Metabolically, high-volume training makes sense. There are two main sources of fuel for exercise: carbohydrates and fats. The energy supply from carbohydrate and fat is inversely related. High rates of carbohydrate use reduce combustion of fat. Carbohydrates are used preferentially at very high efforts, such as a 5K race, or at low fitness levels when fat metabolism is underdeveloped.

    Conversely, when you teach your body to rely on fat for fuel, your combustion of carbohydrates goes down, thus "sparing" carbohydrates. This benefits performance in endurance events.
    Follow the principle of specificity. If you want to teach your body to use more fat for fuel, then create training conditions that generate high fat metabolism. Your body will eventually learn to prefer fat.
    After the base phase and basic fat metabolism have been established, training time should be shifted into very prolonged runs of three or more hours, depending on your event. Very long runs are important in preparation for the marathon and longer events. After two to three hours of running, the leg muscles run low on glycogen. Hormonal adjustments to the low glycogen levels shift fat metabolism into an even higher gear.

    From an excellent article here
    The body is always using some mix of fat and glycogen/glucose for energy when running. Glycogen/glucose are the primary short term stores in the body. The body is always using some mix of fat and glycogen/glucose. When running, the ratio of glycogen/glucose to fat is proportional to running speed. Run faster, and you will use up the glycogen/glucose faster because the ratio of its use is higher. Likewise, if you run more slowly you will use more fat. Fat metabolism is much less efficient than glycogen metabolism

    from here

    This link should also allow you to read what Galloway has to say about it.

    ~~~

    Going back to the OP and MREGANs point... You can do marathons without running long, but it's not recommended.


  • Closed Accounts Posts: 5,095 ✭✭✭--amadeus--


    ^^ I'm going to stop at that in case I end up like this:

    Someone_Is_Wrong_On_The_Internet.jpg

    :D


  • Registered Users, Registered Users 2 Posts: 12,584 ✭✭✭✭tunney


    cfitz wrote: »
    It's not controversial. I haven't given an opinion on how long someone should run for, I don't think I've even given an opinion on how quickly someone should run. I merely said that 'in general it is better to run quickly than slowly'. And it was you who decided to base a whole post on something that was in parentheses in one of my posts.

    I don't believe that I will burn more fat by running slowly for 3 hours than running quickly for 3 hours.

    If I am wrong on this explain it to me.

    No you will burn more fat as a total but not as a percentage. I'm not sure that CHO:Fat usage is as important in a straight marathon but it would be something to consider, but it may be.


  • Registered Users, Registered Users 2 Posts: 1,691 ✭✭✭cfitz


    From an excellent article here



    from here

    This link should also allow you to read what Galloway has to say about it.

    Well I'm no scientist but that seems to contradict this:
    Research has shown that training in the fat-burning zone does improve fat-burning capacity. However, it only improves fat-burning capacity within the fat-burning zone itself—that is, at lower exercise intensities.
    Only slower marathon runners (3:30-plus) and ultramarathon runners are likely to benefit from emphasizing training in their fat-burning zone.

    From here: http://home.trainingpeaks.com/articles/nutrition/can-you-become-a-fat-burning-machine.aspx


  • Registered Users, Registered Users 2 Posts: 6,339 ✭✭✭How Strange


    Based on the advice on this other new thread about DCM, should I start cutting back on my weekly speed sessions and focus on a longer run (8m) instead?

    http://boards.ie/vbulletin/showthread.php?t=2055670655


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  • Registered Users, Registered Users 2 Posts: 3,545 ✭✭✭tunguska


    cfitz wrote: »
    Well I'm no scientist but that seems to contradict this:





    From here: http://home.trainingpeaks.com/articles/nutrition/can-you-become-a-fat-burning-machine.aspx

    C'mon cfitz just let it go man, you could go on forever with this argument. Amadeus has gracefully let it go so why not follow suit?


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