Cycle-Run Brick Session

I had back to back conf calls at 17:00 and 17:30. Therefore time was tight before it got dark and I was secretly hoping the second call would run long and I could avoid any training today. Unfortunately it went to plan and I had to remind myself of how hard Sunday was to encourage myself, I therefore went out to do a double training session.

Training plan was 20k Bike Time Trial round the normal Time trial route including Hedgehog hill then a repeat of yesterdays 14.26k run.

The bike leg produced a new personal best and beat the seemingly impossible 40 minute barrier with a rather pleasing 39:14 for the 20K. My new Blackburn Neuro computer says total climb over the 20K was 799ft(243m) which isn't a flat route but it only about 80% of the main climb in Switzerland. I have to do it twice though :O).

I had a 4 minute 27 second transition and then set out on the run. I made this reasonably realistic with a run through the garden/house and getting changed in the garage. I took on 250ml of fluid(not enough), I kept my cycling shorts on and just swapped my top,shoes and then I set out.

The first 5K was really tight on my thighs and it took that long before my legs felt as if they could actually run. Once that was over it got a little easier. The hills were tough especially running the cobbled section up towards Butte Du Lion. My pace was roughly around the 5min per km mark for the first 10K then dropped off to around 5:20/5:30 per km.

I ran the same 14.28km as yesterday in a somewhat slower time of 1:15:37 with an interim 10K time of 53:31. So slower but thats due to the fact I did the cycling time trial before plus I'm running on my own which is less competitive so I can't drive myself as hard. Running time still not bad as I think it would extrapolate out to around 1:40 for a half marathon, my target for Switzerland is 2hrs and my previous PB on a real half marathon race is 1:47. It was an 8 out of 10 difficulty with respect to how I felt at the end. I could have ran onto do a full half marathon in a competitive situation.

On the bike leg my average heart rate was 154 with a peak of 174. Average heart rate on the run was 150 and peak of 162.

I'm not sure if this is a problem but it is something i have noticed in my training over the last 5 months. Essentially as I go longer it gets progressively more difficult for me to keep my heart rate in the higher zone. I think my lactate level is about 166-168 and so I normally run around the 159-165 level anything above this kills my breathing in about 5 minutes. Anything below 155 feels like I'm not exercising at all.

I'm not sure if its normal but I usually find in the first hour I can easily cope with 165/166 BPM without real discomfort but after that my sustainable limit drops to 160 for the next hour/45 minutes and then down to 156 the following hour.

As this happens I obviously slow down and I see the effect on my overall speed and reduced effort. I've seen it in action in my two half marathons when I'm a fast starter but then get caught by people in the last third of the race.

Overall a nice 2 hours reasonably high intensity training session, not at the same pace as yesterday but it was obviously longer.