M. Koch's Training

Hi!
just a specific question about her training; the following is a quote from the forum from Charlie
“I know she had at least two tempo phases of training. I believe they were separate periods, though I don’t know how long they lasted. During this phase, she would do runs like 10x400m in 65-70sec with a short break (though I don’t know how long). Interestingly, her tempo fell within the same rate as ours did -75% of best time of slower. … …”

I was just wondering if there is any more info on this! Why separate tempo phases and what training was done during the rest of the time? What were the recovery means running-wise between high intensity sessions? Were these used as part of an overall GPP, therefore, two phases?

Have you got any new info on this Charlie?
Or perpaps PJ, as he’s well into women’s 400m?
Or KitKat, of course…

Thanks!