Heart Rate Training - It's got my blood pumping!

   Why does 5:05 excite me? It excites me because it points to progress. It excites me because it is very achievable and it excites me because I have something new to chase. For a little background keep reading, to get to what I’m excited about skip to the heart…

   My last couple of posts have been about my training and how I’m using me Heart Rate to guide my training and racing to maximise my effort at a maintainable level. A couple of years ago I tried a similar strategy and I think I gained some good growth in my running with it, but I never persisted with it. I did improve my pace from initially over 6:00 min/k pace to 4:55 pace. Then I stopped. I’m not sure why, ego?  

   Now I have started again and it excites me. My early training – since Feb this year was purely by HR, and I had no indication of the pace I was running at. I targeted 145 Bpm as I had trained to this before and my reading suggested that this number is the ideal number for nearly all runners, regardless of ability. 

   There are many formulas you can use, I struck on this one due to a blog that I read. As with anything new, you always question it and a little research lead me to breakingmuscle.com and robertsontrainingsystems.com/. Both blogs heavily support the 180 rule developed by Dr.Philip Maffetone  which is essentially 180Bpm – your age for your long run HR pace, or maximal aerobic capacity development. I've also posted on these pages and eagerly await some feedback on my training mix. 

   Since picking up the Suunto Ambit in early March I was only recording my HR. Now I can record my HR and then analyse the pace at the end of a run, and in more detail on the computer at home. My last three weekend long runs have been at the 145 Bpm average, but the varied terrain and incline made it difficult to gauge average pace. Close analyse of the data showed I was running at 5:45- 5:55 on the flats.

   Last Tuesday I did what I call a HR pyramid on a flat 700m section of the trail. This was to gauge my pace on the flat at set HR zone. Rep 1 was above 140 Bpm, rep 2 was above 150, rep 3 above 160, rep 4 was above 170 and rep 5 was to be a flat out HR max.  I could only hit 177 as the max and held it to make 2 x 350 intervals. What were the times I was doing?

•  140-145 Bpm = 4:36 km pace
•  155 – 160 = 4:32
•  165 – 170 = 3:56
•  170 – 175 = 3:37
•  175+ was 3:18 pace

   This has been fairly consistent with my other training runs and 160 – 170 Bpm seems to be the ‘comfort zone’ where I can now push for a couple of km to finish the last 300-400m at the 180 redline and roughly 3:30 pace for a strong 5km finish. My recent Parkrun was very similar –I started at 160 Bpm and a roughly 4:30 pace and the last 1.5km was run at 170+ for a 3:35  final km.

Heart rate training

   Now why did today's run excite me? I was feeling a little full of cold before heading off to run, so the planned tempo hill run became and EZ run. It took about 800m for the HR to settle (a little longer than usual), it maxed at 179 then instantly settled at 138 Bpm. Yes, it was an extra EZ run and I enjoyed the 2-3% downhill for 3.5 of the 6.25 kms on the 30 minute out trip.To give an indication, when running this trail the gradient change is subtle, but when riding you go from coasting along to a constant pedal to keep moving. The exciting part is that my average pace was 5:04 and even hit 4:16 on the slightly downhill sections. On the return trip I allowed my HR to push to 143 average up the hill and the pace hit 5:13kms, with a peak of 4:16 on the true flat of the last 300m.

   The question is, is my two high intensity, 165 + interval or tempo sessions where I aim to build endurance at the high end going to complement the strength I'm developing at the low end?

   I’m hoping this is the tip of the iceberg, the breakthrough run where it all falls into place. If I can maintain this pace for the effort level at the Great Ocean Road half marathon I will smash last years’ time out of the water.

  My 12km #citytrail run Sunday the 19th will be another experiment - can I mainitain that magic 160 Bpm for 8 km, and then finish strong at 170 Bpm for the last 4km? It will be a physiological and psychological challenge but one I am very much looking forward to!

   I'll let you know!

My Summer Training strategies - Heart rate training

   A while ago I posted about my experiences with Heat Rate training (initial post and the follow up post). With my increasing training load for the Roller Coaster run (a write up to come) and the Great Ocean Road in May, for my training during the Australian Summer I needed to find a baseline and manageable limit to my training.

   With a change in family lifestyle in February this year, my weekday training had to make the switch to afternoons. At the time I was super excited to not have to get out of bed, hit the road early and train before school. Most of the time I really enjoyed it, but in trying to establish better sleeping habits I liked the idea of an extra 20-25 minutes in bed each day.

   Fast-forward 6 weeks and it’s tougher than I thought. A long day, the drive home and then a regular 27 – 30 degree C heat I’m needing to find motivation and regularity. For me the regularity has become my heart rate.

I’ve continued to love my easy long runs, and have had no issue with running them at a heart rate of 140 – 145 on the flatter runs, while on the hillier runs I aim to keep it at 145 and up to 150 on the incline. Yes speed drops, but effort has to remain consistent. This also means I need to push a little harder on the decline – no slacking off. I’ve again built up to happily running 2 hours over varying terrain and gradients.

   As I mentioned, after work has been the challenge. So in the last 4 weeks and after some experimentation and realisation, I’ve been targeting 160 BPM as my happy place. I calculated it as about 90% of my working heart rate – 185 recorded max this year – 10%. Using a formula from Brian Mac, Sports coach, my 85% zone is 163 so when I push it that little more or allow it to fluctuate due to the many variables in a run and life I’ve been hitting the sweet spot. There are many different formulas out there. 160 seemed to be where I could manage a stupid steep 2km hill climb or push 3km on a constant 3-6% uphill course at about 4 – 4:15 minute km pace.

You can check out some of the data @ http://www.brianmac.co.uk/hrm1.htm

   So how am I utilising this? My weekday runs are a mix of a 5.5km rather steep hill run (Roughly 50% mix of ascent and descent as its out and back) where I limit 165 on the up and push to stay at 160 on the down (that stupid 2km incline inc), 7km over 3.5km out at a 3-6% gradient hill at 160 before pushing the speed to hit and maintain the 165 on the descent, 1km trails repeats on a favourite track at 160 bpm, dropping to 145 bpm during static recovery before the next repeat, diminishing ks where I start at a pace and increase the speed every k over 5km and finally varying high speed intervals (100m on an incline on a bush trail or up to 500m on the Warby Trail) where I try to max and sustain 165 – 170 and recover with a 50m walk. I think I get a great mix of training on my two nights a week and as I lost my foot pod, I’ve only had HR to go on.  And, this gives me a constant when the temperature has been hot. With the new Ambit 3 I bought I’ll be able to monitor HR and speed. The speed component I’ll only look at at the end of each run as I want to train my heart, not the head.   

   How do I know where I’m working? At 145 bpm or less I rarely have to think about my breathing, and if I do I can easily breathe nasally during the intake and exhale through the mouth. 150 bpm and higher I start to focus on my cadence and breathing in for three strides and out for two, on a 3-2 inhale-exhale cycle. At 160 BPM I drop to a 2-1 inhale exhale cycle and really have to focus hard to breathe nasally although I do revert to all breathing through the mouth when pushed.

   So, the big question is, has it worked? I’ve only really just found 160 BPM to be that happy place in the last few weeks and as luck would have it, my evening run nights have been those hot and humid nights that we all don’t love to train in. I’ve pushed the 1.1km repeats to 170 but by the third my time over the 1.1km dropped by 35 – 35 seconds.  Perhaps 160 has been an inflated target that’s not pushed me enough. I'll also monitor my resting HR by lying down for a minute (just enough to relax) and work from there. If it's a lower HR I'll be able to push harder, if it starts higher I may just take things a fraction easier. And, theres always just going by how you feel. 
   You’ll have to come back for my Maroondah Dam 8km race report to find out just how it all worked, as this was a race of pure forget the rest strategy. It was all about me and learning what makes my keeping ticking.

   Cheers and happy training, the Fish!