I’ve been sick with a cold for the past week… even though I was sick I continued to train until Sunday when I did a 10km easy concept2 session. Despite feeling pretty good during the session Monday Morning told me that it wasn’t a good idea. I couldn’t speak for about five minutes after waking up – my throat was totally bunged up. With that I decided to take a couple of days off and last night hit the treadmill again.
My old test set of 30 min @ 30 minutes seemed too boring so I made up a new one:
8min @ 13,5km/h
2min @ 16km/h
8min @ 13,5km/h
2min @ 16km/h
10min @ 13,5km/h
Note HR at start of 16km/h set, directly after and two minutes after. And finally HR after 30 minutes.

8min @ 13,5km/h – HR 154
2min @ 16km/h – HR 168, 159
8min @ 13,5km/h – HR 162
2min @ 16km/h – HR 176, 167
10min @ 13,5km/h – HR 169

This shows how I recover from a hard interval and how stacking interval effects me.
A lot is tonight’s conclusion; which is not surprising at all.

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