You are reporting the following post to the moderators for review and possible removal from the forum

Lower 400 speed while maintaining base
Is 20 x 100m with walk back (approx 1 min rest) a good anaerobic capacity building workout?
Assuming all reps were at 95% effort (100m PR + 1-1.5s) and you were doing some other form of intervals (say 400s or hill sprints with long rest) on another day of the week, would this sort of work out be a good choice to add into a 10 day cycle for a middle distance person trying to get lower times across the spectrum? I want to drop a couple of seconds from my 400 without exclusively training for that event (which would be a waste of time because I’m a MD runner - not a sprinter).

Hit the submit button below if you want us to review the post.

If you feel this is urgent or want a reply, email us at [email protected] about the post and please include a link to the thread the post is on and what page number/post on that page it is.