Showing posts with label getting faster. Show all posts
Showing posts with label getting faster. Show all posts

Thursday, 9 January 2014

Running with The Fear: Janathon day 9


The Fear. This is was you get when you set out to run an out-and-back 5 mile route and another group of friends sets out to run 6 miles at a much faster pace, and you don't want them to catch you on the return leg.

So at running club tonight me and my friends set off on our 5 mile run, at a nice pace of about 10 min/mile, and we were having a lovely chat. And then I mentioned the possibility that we might be overtaken on the way back. And suddenly we didn't want that to happen. So we sped up a bit, and then we sped up a lot, and finally we were pegging it up Brook Street at 8 min/mile pace. And it felt really good!

I'm very happy that I seem to be able to manage an 8 minute mile after 5 miles of running, and feel comfortable. It bodes well for marathon training. If I can start slow and get faster I'll be well happy.

Tonight was also good because I took two new club members on a 2 mile run/walk. They got on really well and didn't seem too knackered at the end, despite the fact I kept forgetting to stop running and do the walky bit. I'm rubbish at run/walk intervals. Sorry girls.



Wednesday, 16 October 2013

Training to heart rate: week one progress

Low and slow

Last Saturday I ran 11 miles as part of training for the Stevenage half marathon. The aim was to keep my heart rate low, under 140 bpm, throughout. This strategy helps to increase endurance because at this HR level your body burns fat (that we have plenty of) rather than glycogen (that runs out after a time). It's all about building new muscle fibres of the "correct" type. See my previous blog on this subject!

I had to take several walk breaks to keep HR low, mainly when I was halfway up a hill, but not as many as I thought I might. And my average pace wasn't as "slow" as I feared either, a respectable 10:30 min/mile. I hit a lovely flat section through Letchworth, and HR fell so much I was able to speed up.

I noticed some knee, ankle, and shin niggles while running, but these went as soon as I corrected my posture, cadence, and foot strike. Reading Born To Run has reinforced what I've been told previously about running style! I also read this week something Hal Higdon said about having to concentrate on running to do it properly, like you would at work (for example). One of the reasons I don't listen to music when I run, because I like to "hear" my feet and my breathing.

I finished the run in 1 hour and 55 minutes. I was very pleased with how I felt, apart from an aching right knee I didn't feel tired and could have carried on. I didn't take food with me, I'd prefer to avoid gels at the moment, now I'm training to burn fat. It would defeat the purpose to run slow but then take glycogen... I know I can tolerate gels so I'll save them for race day. 

This weekend I'm running between 12 and 14 (full Greenway route), nice and slow as before.

Fast peaks

Tonight I wanted to incorporate some speedwork into half marathon training. I ran 6 miles, but kept the first mile and a half and last mile and a half slow, with HR aimed at <140. These were my warm up and cool down periods, defined properly by HR. 

The mile after my warm up coincided with a Strava segment from Fairfield Park exit to Wilbury Hills roundabout. I wanted to see how fast I could run it, and where I would place in the leader board! Hit my max HR (175) during this mile, which was around 7:35 mile/min pace. And I was 3rd female overall on Strava :)

The mile return was kept slow and low again, then a final fast mile segment before my cool down. Hit 7:22 min/mile and placed 6th overall on Strava for that segment. OK, I'm a bit obsessed with those segments, but I don't like being down the bottom of the board!

Just over an hour run for the 10K, but I'm happy because I achieved everything I wanted to, high and low HR, in the correct training zones, and good pace. 

Bring on tomorrow's club run and my next long run! I'm (finally) enjoying running again :)

Wednesday, 9 October 2013

Training to heart rate: why bother?

A lot of people ask me "How can I run faster?", and my usual reply is "Interval training"! Short fast runs (speedwork), including interval training and hill training, will help your legs get used to running faster in the long term, whereas long slow runs will build up your endurance so you can run further.

There is a scientific reason though, and it's about types of muscle.

I blogged a few years ago about why we need to vary the types of run we do, and the post is pasted below. It also explains why we should bother to train to heart rate (see also my blog on heart rate zones).

Energy sources
Our body contains two types of energy source: glycogen and fat. When you begin a run or workout, your body "fires up" and starts to burn glycogen without oxygen (anaerobic metabolism). This warm-up phase lasts a maximum of 2 minutes, after which your body begins to burn the glycogen with oxygen (aerobic metabolism). After 30 minutes of your run or workout you begin to burn fat aerobically; this process is the most efficient way to produce energy and is what will get you through an endurance race. You still need glycogen as a back-up (for dealing with hills and a sprint finish!), so training your body to burn fat rather than glycogen (and therefore saving this vital energy source for "emergencies") is important.

Muscle types
Muscles are formed of two types of cells (or fibres): slow-twitch and fast-twitch. Slow-twitch cells have a high oxygen content (for aerobic metabolism) and burn fat; they are therefore most important for endurance. Fast-twitch cells create energy from glycogen without oxygen (anaerobic metabolism); a by-product of this process is lactic acid, which creates that painful burning sensation when you train hard. Increasing the amount of fast-twitch muscle cells will help you deal with this burning pain (sprinters have a lot of this muscle-cell type).

How the science fits with training
"Easy" training days at 70% recovery heart rate increase the number of slow-twitch cells, thereby teaching your muscles to burn fat (and saving your glycogen for another day). By increasing your muscles' fat-burning potential you are not only getting fitter but also boosting aerobic capacity, the ability to burn energy with oxygen.

But you do need some capacity for anaerobic metabolism (without oxygen, glycogen-burning); anaerobic metabolism is going to get you started on a run or workout and will propel you up a hill quickly, but will make your muscles burn from the pain of lactic acid build-up. A "hard" training day or interval training---when you run for short distances at your 85% threshold ceiling heart rate---helps your body develop more fast-twitch cells to deal with the pain of lactic acid build up.

"Hitting the wall" (basically, when your legs stop working) happens when you've run out of glycogen. So easy training days---teaching your muscles to burn fat---are really important so you have glycogen available when you need it.

That's my very simple explanation of why it's important to run or workout at these two different heart rate zones. For more details I suggest you read Heart Monitor Training for the Compleat Idiot by John Parker or borrow a book from your library on sports biochemistry or muscle metabolism (there are lots out there).

Training to heart rate: resting, max, and zones

My aim for the rest of this year is to begin training to heart rate again. I last did this in May 2011, so quite a while ago. I keep an eye on my heart rate during most runs, but I've noticed "easy" runs, during which my heart rate shouldn't rise over 140, tend to average at 150 bpm. I need to start again.

I blogged about heart rate back in 2011 on my TWATS blog (I never realised it spelt that...). I've reposted it here, and another will follow.


As soon as I got my new Garmin watch for measuring and analysing my runs, I began to wonder why monitoring my heart rate while on a run would be useful. We all have unique resting and maximum heart rates, and knowing these values can assist with training for races and other activities. 

I googled heart rate monitoring and found this site, which introduced to me the idea of heart rate zones. It also provided a method to calculate your max heart rate based on your age (from which you can calculate these zones). I did the calculation, but I didn't really understand the part about zones or what I should be aiming to do. 

Thankfully, a friend offered to lend me an excellent book: Heart Monitor Training for the Compleat Idiot. This book contains another calculation for max heart rate (slightly different from that on the above website), but stressed the importance of doing a physical test to ascertain your max heart rate. 

Max heart rate 

The calculation in the book is 205 - {half your age} (+ 5 if you're a woman). Which gave me a rough max heart rate of 193 bpm. 

The max heart rate test suggested in the book consists of a short warm-up run, stretches, and a 100 m sprint to get your heart rate up, followed by a series of 5 short uphill sprints (200 m), with recovery jogs downhill in between, gradually increasing the intensity of each uphill run. 

My local running club does sprint sessions every so often, and it just so happened that a session similar to the above test was done a few days after I got my watch :) And my max heart rate peaked at 181 bpm, which I have now set as my max. (Goes to show how inaccurate the calculation can be.) 

Resting heart rate 

The test for this rate is nice and easy! The book suggests you strap your heart monitor on soon after waking in the morning and just lie there for a few minutes. (And you are allowed to go back to sleep!) My resting heart rate was 40 bpm (whoop, super athlete NOT). 

Training zones 

Here comes the section I was most confused about. What are heart rate zones and why should I care? Apparently, two zones are most important: the recovery ceiling (70% level) and the threshold floor (85% level). You can calculate these based on your max and resting rates. 

For example: (Max - Resting) x 0.70 + resting = 70% level 

My 70% level is 139 bpm and my 85% level is 160 bpm. The book recommends you keep your heart rate below the 70% level on 'easy' run days and at the 85% level on 'hard' days. 

 More about training here.

Saturday, 31 August 2013

Saturday speedwork

Had a spare 30 minutes this morning while I waited for the family to sort themselves out, so I decided to go for a run. Set my Garmin 110 to 0.25 mile auto-lap and alternated slow/fast laps. It's a good way to do speedwork without having to map out distances or run up a hill.

Slow sections were run between 9:10 and 9:30 min/mile, fast sections were between 7:20 and 7:35 min/mile. Really pleased to achieve 6 reps of 400 m intervals and cover 5K in 26:40.

Felt really comfortable during the run, I was pleased I could maintain 7:30s and the recoveries helped keep tiredness at bay. Could probably have run a bit faster but I'd just had breakfast so didn't want to push too hard...

The fast 5K time has made me wonder whether to approach my next 10K race with a similar strategy, perhaps I'll try 0.5 mile intervals next week.

Monday, 26 August 2013

Summer holiday training

My last training post was written in the middle of July, at the beginning of the school summer holidays, and this one is written at the end of August, when they are almost over. I find training in the summer holidays quite tricky. My children are home with me, so I can't run in the morning anymore (unless I get up at silly o'clock!), and my evening routine goes out of the window when we are away on our camping trips.

I've managed to continue to attend my weekly Pilates class, which has been a great help with healing my leg injury. I also continued to attend circuits, cycle, and swim whenever I could.

I restarted running in August with a training day for the Duck N Dash organised by Freedom Tri. We had an hour of swim training at 7:30 am, then we ran the First Saturday of the Month 5K around Norton Common. It was a good opportunity to see how it feels to do a dual event. I found the swimming really difficult, but the running went well, possibly because I didn't strictly race the event, I took the first mile "easy" and then began to speed up towards the end (26:27).

Because I've been away a lot over the summer, when I do get chance to run I've been trying to make it count. I've maintained my long run distance by running at least 10K once a week. On the other run day (I usually only managed two runs a week) I was focusing on speedwork, either hill sprints or intervals. It's been good to attempt speedwork on my own because I usually leave run club to organise my fast runs! On my last run (5.5 miles) I concentrated on maintaining a faster pace than usual (I aimed at 9 min/mile vs settling into a 10.5 min/mile plod). I also aimed to run fast up all the hills. It was a good run, despite the faster pace I felt comfortable (and wondered to myself why I'd never pushed myself before this day!). It's definitely given me some confidence that I've not lost too much fitness and I can get back something from this year (aim is still to achieve 10K and half PBs).

This week I'm taking charge of run club. My plans aren't too complicated because I'm not very confident on my own! Tuesday will be about negative splits, taking the beginners to Arlesey and back to see if they can make the return journey faster, and intermediates will be attempting to run a progressive 5 miles. Thursday will be speedwork for the beginners at the Norton Rd underpass, and intermediates will be running 4-6 miles depending on who comes (we might race the distances).

I don't really want to risk injury on Thursday, because Sunday is the Duck N Dash. I can't believe it's less than a week away. I need to concentrate on my diet this week, I need to lose some weight but I also need to keep my energy levels up. I'll be blogging about my diet on soggous.blogspot.co.uk.

Thanks for reading!

Monday, 13 May 2013

Sunday 12th May: Standalone run

Needed to run, decided to run Standalone 10K route. Also decided to push myself for a couple of miles, I think I've got a bit lazy with my training. If I want to get faster I need to run fast!

Splits were 9:18, 8:47, 8:35, 9:11, 9:18, 9:29, and 9:28. 

Pleased with the 8:35 but I need to get nearer 7:35 to feel happy. That's my summer goal.