<p>I’m a sprinter, but according to what I’ve seen from the distance runners, the best practice would be 5 - 6 400m sprints combined with a recovery 5 mile run the next day.</p>
<p>Intervals are fun.</p>
<p>I’m a sprinter, but according to what I’ve seen from the distance runners, the best practice would be 5 - 6 400m sprints combined with a recovery 5 mile run the next day.</p>
<p>Intervals are fun.</p>