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    Has anybody tried RUN-WALK-RUN with Stryd? While I fully understand and agree from a mechanical point of view that constant (average) power should give the best race results, I am wondering if there are any physiological reasons for achieving better race results with a little faster running and short walk breaks, so that average power is identical in both cases.

    If the latter is true I would have managed a sub 4h virtual marathon recently 😉

    Matt Fitzgerald

    Quite the opposite is true, actually:

    I suppose it’s possible that if you train with walk-runs, you’ll walk-run a slightly faster marathon than you would run a marathon, but that’s only because you’re not accustomed to continuous running. The vast majority of runners will achieve a better marathon performance if they avoid walking both in training and on race day.


    Hi Matt,

    Thanks for confirming what I thought should be the case. The abstract of your reference makes a very clear statement.

    Strange though that Jeff Galloway makes his very counterintuitive statement for many years.

    Best regards,


    Oliver – I did this for a while and used the Galloway method for my first marathon. When I started training for my second marathon, I decided to work my way into straight running. Or at least as close as I could get. By the time the actual race came, I was just taking a 30 second walk break each mile in order to hydrate and fuel. Then, I ran the last 5-6 miles without walking.

    I really didn’t find straight running to be more aerobically difficult. I hadn’t thought much about the energy used for starting and stopping, but it makes sense.
    Especially if you’re taking more frequent walk breaks.


    Thank you Matt, for posting this fascinating article. It makes sense that the constant starting up for a run interval then braking for a walk interval would use more energy. A loose analogy could be driving an automobile on the interstate versus driving in the city.

    I have spent the last two years doing run/walk intervals. Everything from the couch to 5k, to a 10k, to HMs. When I finished the HM after a run-walk, I still felt exhausted. This year, since May, I’ve been training with the 80/20 plans. I did the 5k plan first, and am now about half way through the HM level 2, pace plan. I did the 1:50 ER run two weeks ago, and came through it ok. I have the 2:00 ER this Saturday and that will be another good test. But these runs are by far the furthest I’ve run straight through, and they are survivable. 🙂

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