Posts tagged St Louis
The Role of Intervals in Marathon Training and Yasso 800’s

Every sound training plan has building blocks whereby each activity in succession should build on the one before with specific purpose. Anaerobic development, achieved through higher intensity, shorter duration interval sessions is an important part of your preparation for a half or full marathon, at the right time.

Phase 3 of the Lydiard pyramid, the Anaerobic Development phase, comes after a strong aerobic base has been built and preparation completed via the strength building hill training phase. Keep in mind that the half and full marathon distances are 98% aerobically based. Meaning if one hasn’t built a strong aerobic engine the benefits of which are ability to deliver oxygen to muscles, increased heart stroke volume, lowered resting pulse and higher working heart rate maintenance, through several weeks of slower, longer running, then you need to spend more time achieving this rather than moving into anaerobic development.

In the context of endurance training intervals are not “speed” training but are used for anaerobic development. They are bouts of work with a recovery generally equal to or shorter than the work bout. Lydiard said “there is a time for repetitions to develop anaerobically and depending on target race distance, sprint drills to develop fine speed. You have to organize repetitions and sprint drills at the right time so you can peak on your target day”.

For most marathoners/half marathoners doing intervals at above anaerobic threshold with enough recovery to repeat allowing the body to get used to high levels of acidosis is recommended. They should be prolonged harder work, not shorter durations. Distances of ¾ mile, mile, 1.5 miles and 2 miles are desirable. Under Lydiard these durations are done at ¼, ½ or ¾ effort, depending upon if the runner is early in the anaerobic phase or later in the phase. As an example, we have an athlete with capability of running a 3-hour marathon, about 7-minute pace per mile. During the interval phase these distances would be 7000 meters combined made up of several ¾ mile to mile intervals working from 6:15 pace down to 5:30 pace for each, with just enough rest to lower heart rate and get prepared for the next bout of work. Lydiard described these sessions as “tiring, exacting work”, but it gets the body used to being uncomfortable at faster sustained paces.

The picture below is a good example from my old training log as I was in the anaerobic phase preparing for a full marathon:

Bob Dyer Example Lydiard Training Log.JPG

In this example after a good warmup, I did 4x 1-mile intervals at about ½ to ¾ effort as I was later on in this phase, also rested a bit between with slower pace. Needless to say the next day was a recovery aerobic run.

Its key to remember that for longer distances, interval sessions should be done at distances longer than ¾ mile and stretch to up to 2 miles at ¼, ½ or ¾ effort depending on where one is during the training program. A final thought about the commonly implemented “Yasso 800”. First the idea that doing 10 repeat 800 meter runs at specific paces is reflective of your marathon target ie 3:00 minute 800 = 3:00 hour marathon, with equal rest, is not predictive of future race times, it is not scientifically validated.

Secondly it is found in the exercise physiology literature that for runners training for longer distances like the marathon that interval work is important but has to be done in proper sequence and distances building on a strong aerobic base and hill strength training. Doing them any earlier in the cycle can cause injuries and illness. If you feel you must do track or other high intensity workouts save them for a phase of training where you are ready for it, not early on. If you want to achieve your long race goals in the half or full marathon you need to work on your endurance, after all these long distances are 98%+ aerobic!

If you would like to learn more about the science and performance-based Lydiard Method, stop by the store. We are always happy to talk about your running!

Bob Dyer (Co-owner, Running Niche)
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The Training Effect

Every sound training plan should be like building blocks. Each activity in succession should build on the one before and have specific purpose. This week I thought some explanation of what the “training effect” is would be interesting to everyone. 
Currently we at Running Niche have about 20 athletes on the Lydiard Method training getting ready for target races in April and May. They have concluded their Aerobic Base Building phase which started last November and early December and most have just finished their strength building phase by integrating hill training for several week. This phase prepares the gluts, legs etc to handle more intense efforts which comes in the next phase. Now they are moving into Phase 3, which is the Anaerobic Development phase. More on what this phase is about next week.
First its important to understand the “training effect” or the principle of training adaptation. A training effect is realized once an appropriate workload is applied and appropriate recovery allowed. When you tax your body with a hard effort if you don’t allow it to recover, the next hard workout you do will only break you down and eventually lead to sickness and injury. If you allow your body to recover properly then you start you next hard effort workout at a higher level of fitness and will be able to stress your body at a higher level. Each one builds on the prior to increase your fitness. 
This above diagram depicts this concept of continuous improvement due to the training effect. Catabolism refers to the training stress applied such as endurance work or lactic acid tolerance workload. Anabolism refers to workouts which allow recovery such as easy aerobic runs. The single most common mistake runners make is running another hard workout before they have recovered from their prior one. If you follow this principle regardless of the training phase you are in, you will get more out of your time and effort put into training. This concept becomes particularly important during the Anaerobic phase of the Lydiard Method where you begin to train your body to get used to the very uncomfortable state of oxygen deficit.
Remember, all workouts on the Lydiard Method have a specific purpose and are sequenced accordingly to maximize the “training effect”. If you would like to learn more about the science and performance-based Lydiard Method, stop by the store. We are always happy to talk about your running!

Bob Dyer (Co-owner, Running Niche)
LinkedIn | Facebook | Instagram