So I realized that I need to improve my 400m speed to get faster at longer distances. That's something you may or may not agree with but I don't want to discuss that (I have never run a 400m officially, I guess my time would be cca. 56s so I am really rather slow). My question is: how to improve at 400m while still train mainly for the longer stuff (I mean 1500m-10km)?
My idea is the in the title mentioned 200's at 95-97% effort with complete recovery. I know it wouldn't be a completely alactic training so I'm not sure whether it won't interfere with mainly aerobic running during the base period. Also, I want to get my "kilometerage" (I am from Europe, I count in km's) high but if I ran these 5-6 200's I would run (with warm-up and cool-down, strides etc. included) just about 6km on that day. So I'm thinking I would add next 40-60 minutes at moderate pace after this training BUT won't the moderate running immediately after short intervals negatively affect the benefits of the speed endurance training? Maybe it is better to start with the moderate running and then do the 200's but I want to run the 200's as fresh as possible.
Thanks for your comments, suggestions.