Shin splints - these seem to be easing off a little though
I found calf supports really helped with this.
Good training. The thing is when you run a high volume of easy runs you can often feel like your legs are a little dead and get the perception that you are slowing down but this is mostly just from accumulating fatigue, as well as normalization of a faster pace or lower HR. To really see the benefits you have do a taper and enter a race. You really just have to trust the training.
I always struggle with the first few mornings when i try it. Once I am up, it is fine and after a few days I seem to be able to get up easily enough.
I have been doing the Garmin Coach fro 10k these last few nights and it has been interesting. Last night ended up at 9.4km in 1:05. When i last did 10k (Sat?) it took 1:03.
The difference is that on Sat, it was all at around 6:30 - 7:00 / Km.
Last night there were a bunch of fast bits interspersed with walks. There was an 800M Walk, 4 x 3 min walks and 2 x 5 min warm up/downs. So i am thinking that 10k in < 1hr is at least doable for me soon (Best was something like 1:01:40 i think)
Looks like me tweaking my calf was the best thing to happen as it forced me to try a flat 5k today.
Ended up doing 3 miles exactly at a pace of 9:27 per mile which trumps any other run this year. From cardiovascular point of view felt basically the same and ended up with exact average heart BPM as on the other run with downhills and uphills.
Except lack of downhills felt much better on the shin splints and no uphills felt much better on the calves. While I'm still very much in Fatty McFatty stage of my weight loss, probably best stick to flats.
I always found the downhills brutal on my quads when i was heavier as i ended up loading them up loads to try and tackle gravity and hold myself back.