The Lull is Over

Last week’s I was bemoaning being in a VO2 lull and expecting it to last for 10-13 days. On day 10, I had my best run and my legs were pretty much back in action. To give you some hard data to work with let’s go through the days.

Day 0 – Saturday 6th November

All-out parkrun, full of surges and efforts takes 25 seconds off my time of two weeks before and puts me into the VO2 lull.

Day 1 – Sunday 7th November

Sunday morning long run fasted at 6:35am. Distance run is 11.7 miles in 1hr38 – 8:22/mile.  Fastest two miles are #4-5 at 8:04 / 7:38 on a downhill stretch but nothing else came in quicker than 8:14 and the 11th mile was a glycogen-depleted 8:56.  Average heart-rate was 133bpm and I could barely find the effort to get it above the low 140s.

Day 2 – Monday 8th November

30-min recovery run, fasted at 7am. Distance of 3.9 miles in 31:48 at 8:09/mile.

This wasn’t a bad run in itself but then I did some run drills after and a 40-min core session which may have tipped me over the edge. Average heart-rate similar to yesterday at 134 and only just hitting low 140s.

Day 3 – Tuesday 9th November

A 9-mile Steady run at the beach taking 1hr14 and averaging 8:10/mile.

Conditions were great for running when I set off – nice and sunny. Legs felt ok to begin with and after a half mile warmup the first mile came in at 7:29 followed by 7:34, 39, 49. But when I turned round it was a little colder and my legs faded to the extent I was running at 8:40/mile.

Heart-rate reached high 140s on the outward leg but dropped as the run went on to end up averaging 142bpm.

When I arrived back at the car I found my feet were covered in spots and blemishes, I believe it was a sweat rash.

Day 4 – Wednesday 10th November

Recovering run of 4.4 miles taking 40:39.  Average pace 9:10/mile, fastest mile 8:47; HR-avg 124 and barely able to reach 130s.

The sweat rash was still present when feet got hot and woke me in the night 3-4 times. It’s probable I’d gone into anaerobic overtraining and was over revving the Central Nervous System.

Day 5 – Thursday 11th November

Improvement over yesterday. Same route with a little extra tacked on to make it 4.7 miles in 41:02. Average pace was 8:44/mile, heart-rate only 2 beats higher at 126 but still unable to find any power to push it up beyond 135bpm. Fastest mile came in at 8:22.

Day 6 – Friday 12th November

A repeat of Tuesday’s 9-mile run. A real lowpoint. The wind was 18-20mph and the run took 1h23 – an average pace of 9:11/mile for a heart-rate average of 129.

Even with a tailwind, the outward leg got no faster than 8:06 but on the way back, into the wind, I was over 10min/mile with a trudging 10:29 mile towards the end as I could barely lift my legs. The sweat rash had all but gone now and I had a night of nearly unbroken sleep.

Day 7 – Saturday 13th November

Back to parkrun. I ran 26mins for the parkrun with my fastest mile coming in at 8:15.

Day 8 – Sunday 14th November

Standard 11.7 miles long run, fasted at 7am. At last an indication of the legs beginning to feel better. The run was three minutes quicker than last Sunday at 1hr35 and averaging 8:07/mile for a HR-average of 138bpm. Note how I couldn’t even reach this heart-rate on some of the runs earlier in the week. Fastest mile was 7:35 (downhill) with three more sub-8s thrown in.

Day 9 – Monday 15th November

Early morning, fasted run with legs beginning to feel better. Distance was 3.8 miles in 30:44 – an average of 8:04/mile with a fastest mile of 7:36. On paper very similar to last week but legs were feeling more like running.

Day 10 – Tuesday 16th November

The game changer! Legs felt great and there was an early indication as I waited for GPS to lock in. My standing heart-rate dropped quickly from 50+ beats per minute to 37-38. That’s always a sign I’m ready to run.

Once again the 9-mile route at the beach and I found my legs were propelling me forwards with each stride. Where I’d run this route in 1hr14 and 1hr23 last week, today I ran it in 1hr05 – an average of 7:11/mile. More importantly that’s an improvement of 8-secs/mile from two weeks ago before the parkrun. My heart-rate ended up averaging 152bpm for the run and peaking at 161bpm. I pushed quite hard on the run back and managed to run the last two miles at 7:15/mile each – no dropoff.

Yet while I think my legs are back, I’m not sure there isn’t a little more to come. My fastest mile was only 6:53 and the next fastest was 7:01. Two weeks ago, I ran the first two miles in 6:47 and 6:46.


So there we go – a detailed look at how I recovered from an all-out parkrun, a VO2 lull and possible anaerobic overtraining by listening to my body and letting my legs run only as fast as they were willing. I’m sure had I wanted to I could have pushed harder on some days but I’m not sure it would have done me good. Most likely it would have delayed the recovery process and possibly trigged an injury – strain or otherwise.

If you go through again you’ll see the legs generally had noting extra to give in the early days and this reflects in the low heart-rates. Low heart-rates suggest I’m burning mostly fats and less glycogen. As the fast-twitch muscles (which use glycogen and will have taken longer to repair) became available again I was able to start going faster and the heart-rates rose. When they had really regained their oomph, I found my legs were much bouncier and I was popping off the pavement with each step.

Now I’m going to take a few more easy days as I look to improve on my parkrun time on Saturday.

The VO2 lull

I’m currently going through what I term a “VO2 lull”. It’s something I’ve encountered across my running years but taken a long time to understand, and even longer to recognise when it’s happening. Last Saturday I ran a good, hard parkrun at Upton House. Combining efforts up the hills with surges to try and catch runners ahead of me, as well as bursts to stay in front of those behind me, it was an all-out effort. With fresh legs going into it, from three days of easy running, I found an extra gear whenever I needed it. While I felt fairly good immediately afterwards, my legs have had nothing all week. I’ve lost a good minute off my easy run pace and this is what I’m calling the VO2 lull.

First off I need to explain the V02 part. Exercise physiologists like putting runners on treadmills and measuring the effects of running at ever-increasing speeds. One of the key measurements they take is the amount of oxygen breathed in, as well as carbon dioxide breathed out and heart-rate. When they measure the oxygen (O2) intake and utilisation it is correctly termed V̇O2 with a little dot over the V indicating it’s a rate but most people refer to it as VO2 partly because how do you pronounce a dot? It’s partly because it’s too onerous for them to figure out how to get the dotted V̇ on a word processor!

In chapter 8 of Build Your Running Body, Pete Magill details the growth cycle of mitochondria which are fundamental to producing aerobic energy. Mitochondria are often described as the powerhouses of the cell as they convert oxygen to energy which then powers your exercise. The importance of mitochondria to any distance runner cannot be overstated enough – they are the source of your aerobic ability which itself is key to distance running success.

Magill explains that it takes 4-5 weeks for mitochondria to fully grow but there’s a problem. “When mitochondria first begin adapting, they can’t contribute to aerobic energy production … this phase lasts from ten to thirteen days and creates an “oxygen utilistation problem” … you can expect to feel sluggish doing workouts that were easy the previous week” (p.142)

That’s exactly where I’ve been this week. Last week I was running a 20:55 parkrun at 6:45/mile pace; the next day my legs could barely achieve eight minute miles on my long run. This might have been due to recovery factors but it’s continued on through the week. My Tuesday Steady run which I was running at an average of 7:20/mile last week came in at 8:10/mile this week. Wednesday’s recovery run averaged 9:10/mile; today’s, five days after parkrun, came in at 8:44/mile. My legs have got nothing – no bounce, oomph or power. I’m barely getting out of the fat-burning zone on these runs.

So I now just have to wait for the mitochondrial adaptation to take place and in the meantime, plod along. This isn’t the first time I’ve been here but this phenomena is so poorly known that, in the past, I would start to take action to try and get back ontrack. I might rest (not a bad option if it’s only a day or two), do some strides (poor option as legs are already tired), do less mileage (not great as you won’t necessarily reinforce the growth), or try to continue doing what I usually do at the usual paces (effectively overtraining which usually led to injury). When it happened to me after marathons, it usually led me to quit running for six months or more. It’s only now I realise you just have to jog until the legs splutter back into life as they eventually will. It’s quite a remarkable experience because one day running feels awful, the next it’s like you’re running on bedsprings as the adaptations finally kick in.

Update on my 800m training – Oct 2021

The time had come to run another 800m time trial and find out whether JackD’s plan was working. 

A quick recap – last December I ran 2:58 to set a baseline. In April, after following Jack’s plan for a cycle, it reduced by only five seconds to 2:55. I then did six weeks of endurance training and it reduced a little more to 2:53 in early June. This was where I started my second cycle of Jack’s training from. The summer was then spent following the plan as best possible allowing for hamstring strain in July and a fast parkrun in August. I did all but three of the scheduled sessions.

So here I was back at Poole Park and having gone through my usual pre-run routines, this time I ran 2:50, maybe 2:49. Still no significant improvement. This was highly disappointing given I thought I was capable of breaking 2:40. Back in early September I ran 1:58 for 600 in training – that’s 2:40 pace so I should have been faster on the time trial. But it wasn’t to be. Realistically when I got to the October time trial I’d already passed my peak and was on the way downwards hence the poor showing on the day.

There’s no doubt I’ve generally got faster and fitter from the training but it’s not resulting in faster times over 800. If anything all I’ve done is brought the average of training up. I’ve not got significantly faster in the top-end speed – I ran 37-38secs for the first 200m of this time trial, back in December it was 39-40 secs. That two second per 200m improvement simply reflects what’s happened in the time trials.

World class 800m runners are easily capable of running twenty-five seconds for 200m – even the women. I’m nowhere close to that, maybe thirty-five seconds at best. So I’ve got to find a way to improve top-end speed because if you start running 200 quicker then the subsequent sections all get quicker. Even with a drop-off 400 is covered in under a minute and so on.

Endurance rebuild

Following the time trial, I knew I needed to let my legs recover. I spent a week doing very easy jogging. And that’s all it was – jogging. I’ve come to realise that when I’m past my peak it’s because my body has begun switching Intermediate fast-twitch fibres over to anaerobic mechanism and these can only be rebuilt through endurance training – lots of easy running, no speedwork.

My first Sunday run of the rebuild saw my heart-rate barely going over 130bpm during the entire run. Yet it still felt effortful in its own way which always highlights a drop in endurance. In the following days the pace picked up but I was still only barely running 8-min/mile until my legs came back. Yet by end of month I was beginning to see some miles closer to seven minutes and even putting in a couple of 6:50s on Steady runs. My final Sunday long run of the month was close to where I’d been in late August. Theoretically I could have picked up the 800 training again but I want to spend the winter on endurance as all world-class runners have a large aerobic base.

Form drills

Recognising my top-end speed isn’t good enough, I started looking at how to improve my general sprint speed without resorting to hillwork which usually overpowers my endurance. As I detailed in Stride Length, I’ve been thinking about how to improve this and started doing more drillwork – marching, A-skips, B-skips and straight leg bounding – to try and improve my running form. And boy, did it improve.

From the first day of drills I could feel my left glute hasn’t been working, my knees haven’t been lifting enough and my lower legs (the calf) have been inhibited in extending the stride. That inhibition has come from previous attempts to improve form where I looked to get rid of heel striking. There is so much conflicting information out there, most of it by people who are interested in very, long distance running rather than speed.

Given it’s ten minutes after an easy run twice per week, I’ve really enjoyed doing the drill work. I think it’s a new challenge and I can feel it’s going to help. The disappointment of the time trial has quickly gone.

Pistol squats

When I was researching exactly how to do sprint drills I came across heptathete Chari Hawkins doing a pistol squat.

Trying one I couldn’t get anywhere close even hanging onto my kitchen counter! It occurs to me that at the bottom of the pistol squat is very much the sort of position sprinters push out of from the start blocks. Developing it must be useful for getting faster especially as Chari Hawkins can run a 24.4sec 200m.

So I’ve begun doing daily squat work and discovered my left leg is weaker than my right. Much of that is related to muscles around the left hip which has impacted my running stride in the past. Doing the squat work has begun to strengthen this.

Combined with the drill work, my running form has changed massively in a couple of weeks. I’m feeling stronger and more balanced in my running. I’m sure my stride length is increasing simply because I have a stronger push off.

Coming up

The next block of dedicated 800m training is a long way off. I’m going to use this winter to build endurance. I feel that’s also holding me back. The best 800m runners in the world all have big aerobic systems which reflects in their easy runs being in the 6-7min/mile range – currently that’s top end aerobic running for me; not easy. I need to build mine up while maintaining contact with my speed.

I’m hoping to maintain speed through a fortnightly fast parkrun (as well as drills and strides). It’s a long time since I went to parkrun and ran fast regularly. I feel sometimes I’ve got so focused on training that I don’t get the reward of actually racing fast. My first fast parkrun on Oct 23rd came in at 21:20 at Upton House. While it was a four second PB over August, I know there’s much more to come as the legs were fatigued from a big week of running.

The other thing I’m looking forward to is Christchurch 10K in mid-December. While I’m not intending to do any specific 10K training for it, I am focusing on it and will taper for it. After that I will probably look to run a decent half-marathon next spring before resuming 800m training again. It’s all a long way off and yet it’ll fly by!

Bad loser

As a kid I was a bad loser. I know this because my parents would point it out when I went stomping off with my arms crossed, a big scowl on my face and tears streaming down my cheeks! Certainly there was much whingeing and while I don’t recall any particular moments, I know I didn’t enjoy losing.

I played all sorts of sports over the following years, some with more regular commitment than others. I played badminton for a year, squash for two, volleyball for many years as well as basketball and 5-a-side football with work colleagues and it didn’t really matter which I was playing, I never enjoyed losing.

That “hate-losing” temperament powered me to try and get better at any sport I tried. If it was a team sport, I would stew for hours about how we’d lost. I’d pick holes in my own play and that of my teammates. I could never understand how they took losing so lightly and would turn up to the next training session and put in low levels of effort. I guess some people are better at rationalising and making up excuses.

Watching televised sport, I’ve often wondered how I would come across if I had to face a post-match interview. Very badly I suspect. Somewhere along the way I at least managed to find the social grace to say and do the right things after matches. I could shake hands with the opposition and congratulate them if they’d won. But if you were actually to ask me to talk about my thoughts and feelings after a match it would be messy and miserable. Once in a while we could lose but if I saw everyone had given their utmost, I could accept losing with good grace.


This hate for losing died down over the past couple of decades. For one thing, I learned losing was an essential skill for getting along with others in life. You can’t win every argument without breaking relationships. Taking up golf helped because the competitive aspect isn’t immediate enough to trigger my competitive instincts. With running I knew I was never going to be good enough to win so my expectations were always low and I always knew I’d run the hardest I could.


Now all of this suggested that being a bad loser was mostly genetic and a state of mind, but as I got further into running I came across an interesting fact about speedwork. If you do too much of it, it turns your system more acidic. Now, we’re not talking like the Xenomorph in Alien whose blood dissolves the floors in spaceships just mildly acidic.

If you ever studied Chemistry at school, you’ll know of the pH scale which runs from 0 – 14 with 7.0 being neutral. Acids are 0 – 7, alkalis are 7 – 14 with the extremes being, as you would expect, very acidic or alkaline. Usually your body usually has a pH value that is the alkaline side of neutral which is something akin to chalk.

Typical pH values for fluids within the human body are 7.35 – 7.45 for blood; 7.4 – 7.6 for saliva and 4.6 – 8.0 for urine. Quite why the latter can be more significantly in the acidic range I’m not sure other than urine involves fluids which have passed through many other areas of the body including the stomach where there are high levels of hydrochloric acid involved in digestion.

If, however, you do high levels of speedwork you can push the body across to the acidic side. The pH value of blood can drop towards the low sixes (e.g. 6.3 – 6.4) and be part of a general imbalance within the body. This is one aspect of overtraining identified by Phil Maffetone. While I don’t like his age-based training formula, his book highlights these sorts of issues with the body and anaerobic training revving up the central nervous system and all the issues that can bring.

Now the whole point here is not to know exactly what pH value your body is at, only to understand that it usually runs in a mildly alkaline state but repeated high intensity training can push it into an undesirable mildly acidic state. This is one reason why recovery runs on the day before and after speedwork, or any other effort session are recommended.


When I ran my first 800m time trial last December it was tough. By the end, I was breathing very hard and I coughed for almost an hour afterwards due to acidosis. But I also found I was in a very bad mood for the rest of the day. When I did my next time trial in April, while I didn’t have the postrun after effects quite so badly, I did get into another black mood. For sure the results of the two time trials weren’t too my liking but they didn’t specifically bother me. The first was simply setting a benchmark, the second was so below expectations that I couldn’t get angry at it. Yet I was grumpy following each of these big runs.

Back in August when I ran my first all-out parkrun for two years, I once again noticed I wasn’t happy afterwards. I’d offered to write the Run Report and fortunately, having pre-prepared it, needed only to fill in a few details before sending it off for publishing within a short time of arriving home. It was strange though because I’d been so enthusiastic earlier in the week with it and then simply submitted it with the minimum of remaining effort.

It would be tempting to put all this down to disappointment at the runs but the depth of moods hinted at something more. When younger me got moody, I assumed it was down to hating to lose and not understanding how to handle it. With a more mature outlook and the rarity of these recent moods, it was clear they were more physiological than psychological.

This came home to me over the past weekend. Once again I ran a fast parkrun. Again I wasn’t overly happy with the time but my mood was ok. I chatted to a couple of friends then nipped into the supermarket to pick up some items on the way home. There was no mood until much later in the day. When I think about it, I did some strength and conditioning when I got home which seems to have tipped me over the edge. I slept badly for the next two nights – another sign of possible overtraining.


When I think back to my black moods in the nineties, I always thought it was down to immaturity and poor psychology. I’m sure to some extent this is correct. But I cannot escape the fact I used to train and play sport a lot harder than I ever do these days. It wasn’t uncommon for me to be playing sport on a lunchtime and again in the evening. Sprinting up and down a basketball court, jumping up and down at a volleyball net, lunging around a squash court or simply doing thirty minutes worth of high intensity effort at circuit training. I was constantly revving the engine playing sport, working a 9-5 job and socialising at clubs and bars on evenings or weekends. No wonder I would sleep for ten hours or more on a weekend. I could be moody, depressive and unable to snap out of it.

I’m sure I was guilty of pushing my pH values into the acidic side of the scale regularly. I was probably young enough to cope with it to some extent. given the younger body recovers quicker. And by training so hard, so frequently, I expect my body had learned to cope better with it. At least able to cope with it until it couldn’t and then my mind would go off down the rabbit hole and see things through the worst possible lens.

Update on my 800m training – Sept 2021

The second cycle of 800m training is coming to a close. Next week I’ll go do an 800 time trial and see how successful it’s been. The last block of training through July-August was mixed in its success. I felt stronger by the end of it but quite often missed the target times due to overly tired legs. Missing target was a little demoralising yet seeing other things going well helped offset that.

This month’s training has been about sharpening up for the 800TT. Its focus has been miles at Threshold pace to help build Lactate Clearance, along with short intervals at 800m and mile pace for building Lactate Tolerance. The hardest efforts, which need some psyching up for, are the long 600m efforts at 800m pace. On their own it wouldn’t be awful but often they’re thrown in as one part of a bigger session. For example, the first week was simply three 600m efforts with a 1km jog recovery – each effort takes a full-on effort.

Threshold running (T-pace)

The early efforts for these came in around 6:50-55/mile pace. This was a good twenty seconds faster than the same workouts six months ago. But as my fitness sharpened up I began to run them faster and by the past week I was running at 6:40.

The dilemma has been whether to stick to pace or trying to go based on how the body is reacting. As I’m not one for staring at the GPS anymore I’ve opted for the latter hence why my fastest effort came in at 6:34! Considering during July-August I was struggling to run my kilometre intervals at this pace, it all suggests training has been going in the right direction.

Mile-pace running (R-pace)

The plan has been packed with 200s at mile pace but, they’re often at the end of a Threshold session when the legs are tired and heavy with lactate. Sometimes they’ve been hard to get on-target, needing lots of effort to scrape in; other times it’s seemed easy to hit target with lots to spare.

Given the aim was to hit 44sec there’s only been one over 44½sec which was into a headwind; I judge them as having been a success.

800m-pace running (FR-pace)

These have been the rewarding part of training. Last time I was aiming to complete 600s in 2:06 and I only managed it once. This time, I was aiming for 2:00 and managed to get under it three times along with two more at sub-2:02 – not too far off.

There have also been some slower 600s and last Thursday finished on a low note with them coming in at 2:07 and 2:09. I can throw out excuses about high winds but, in the end, I still like to hit target. Yet when I think back to the start of the year I was running my initial 600s in around 2:23 there is something good happening overall.

There were a couple of 400s mid-month which came in on target at 1:18-19 compared to 1:27-29 in the equivalent session six months ago. And again at the beginning of training I remember one misjudged effort came in at 1:41!

The shorter intervals of 200, 300 have been interesting. Generally I’ve struggled to run them much faster than last time around. Fastest 200 in March was 37.45s, this time it’s 36.73sec; so there is a little more quickness but it’s not been a massive leap.  I got a couple of sub-37s on a wind-assisted day and sub-59 300s on another.

So it really seems like I’ve improved my speed endurance this go-around but haven’t done much for my actual top end speed. The 200s are averaging sub-5 pace now which is pleasing given I couldn’t even hit that pace at the start of the year. Doing strides has been a factor on the speed side and I managed to get the pace down to 4:07/mile momentarily on one so hopefully there is more to come.

Stats

I’m not going to go overboard on the stats as they’ve been so variable. But to give an indication of my fastest efforts in time and pace; plus what that multiplies up to over 800m. It’s noticeable that the longer efforts of 400-600 are about the same pace.

FastestPace800m pro-rata
200m36.73s(4:55/mile)2:26.9
300m58.23s(5:12/mile)2:35.3
400m1:18.9(5:17/mile)2:37.7
600m1:58.22(5:17/mile)2:37.6

Running form

Since starting the second time around with the plan, I’ve been working on my running form. I’ve specifically been trying to figure out how to sprint faster and somewhere over the past month or so it all began to come together. I found my legs were beginning to spring off the pavement and each stride would cover more distance. This has caused muscles in my right hip and glutes to get more active to fire produce thee springing action but also involved protecting muscles around the calves and quads that absorb the landing forces. These actions are beginning to become second nature now and with the initial stimulus over, I expect them to build in coming weeks.

Summary

The most pleasing part of training is that my fitness has remained throughout. There have been one or two sessions where I couldn’t get it done but that’s to be expected. There are always ups and downs.

When I did this same training block six months ago, I struggled to get any of the 600s on target and they even slipped backwards by the last couple of weeks. I think this is part of why my time trial barely improved last time around (2:58-55). This time I’ve been hanging in there and am now hoping my 800TT will see a significant improvement – at least scraping down into the 2:30s.

My easy runs have begun to get quicker over the last week or so and I’m beginning to feel like I’m getting back to the form I had back in 2012. Not quite there yet but I am intending to do a fast parkrun in October as well. So that’s all to look forward to in the next update!

Starting intervals

A recent Thursday workout was a combination of fast intervals – 600, 400s, 200s. The first came in at 2min05. The 400s both pleasingly scraped under 1min20 while the 200s were a final gasping all-out effort to get on target. Arriving home the 400s and 600 were what stuck out in my mind because they were close to the times I used to clock when running round Poole Park cricket pitch. In fact, when I looked them up I discovered the workouts I did were exactly a decade ago. How times move on.

In September 2011, I wasn’t the committed runner I am now. My first six months of the year had only seen me bank less than two hundred miles but I could run a 21:30 parkrun. In July I started doing a proper warm-up which knocked over thirty seconds off taking me sub-21. I then entered New Forest half marathon for late September and this triggered my “train harder” instinct.

My belief about getting faster at running then was based around the same idea as most people – run faster in training. But, as a sports and exercise science graduate, I’d also read up on the ideas of increasing VO2max through hard interval training and Lactate Threshold through tempo runs and through Stephen Seiler’s MAPP website thought this was the way to train. It was unsophisticated stuff but to the untrained runner it has initial benefits.


I decided hard intervals, aiming for a 19-min parkrun pace, were the way forward. After all, if I wanted to run nineteen minutes I needed to train at the pace. It didn’t seem insurmountable as I’d run a 5:55 mile in the summer which is a similar pace.

I didn’t own a GPS watch but had a sportswatch to time my runs and used a heart-rate monitor. The watch could store some basic info with the lap button but I’d often simply commit numbers to memory and write them down when I got back to the office! I have many spreadsheets filled with this sort of data.

I found a website (Gmap-pedometer) which allowed me to measure distances and found a lap of the cricket pitch to be a third of a mile. Starting from a particular blue bin and running to the pavilion is 400m. I still use these measurements to this day.What I did next is some maths. I calculated with the cricket being about 530m, I’d need to run nine or ten laps to cover the 5,000m distance of a parkrun. Nine laps would fall short at 4,770m; ten would come in at 5,300m and ensure I had a little extra in the tank. With a 19-min parkrun being about six minutes per mile, each of these lap would need to be covered in two minutes, 400m in 1min30. I’d give myself one minute’s recovery between laps and push hard on the efforts. After all, if I could run them faster it must be better and lead to improvement?

This was my plan for improving and it had worked for me on the rowing machine many years before.  But there were two immediate flaws with what I did.

  1. With my then-parkrun pace at around 6:40/mile, I was asking a lot to jump down to running 6min/mile with nothing to bridge the gap. Certainly I was capable of the pace but to do ten intervals with only sixty seconds’ recovery was asking too much of myself. When I succeeded on the rower I’d been aiming a few seconds faster than my existing times. It’s why when I became a successful parkrunner six months later, and got my time down to nineteen minutes, it was because I only ran intervals at a few seconds faster than my existing parkrun pace.
  2. I tried to cover the distance rather than do enough work to stimulate improvement. These days I’d wouldn’t do more than 3,200m worth of work at mile pace and around 1,600 – 2,400m is more usual. A full 5,000m is simply too much stress on the body to recover from. Think about it, when you train for a marathon, you only do a long run of 20-22 miles maximum. If you’re doing 10K training then the elites will only do 6-8K at race pace. It’s a mistake to believe just because the race distance is relatively short, you need to cover it in training.

The biggest flaw though is that, when I began doing these intervals ten years ago, I didn’t lack speed. As I wrote in filling in the gaps, you have to figure out what’s missing. My issue was endurance and lack of aerobic capacity. My parkruns improved three months later after I’d logged many easy miles with just the occasional fast parkrun thrown in. I already had the top end speed, it was the endurance base that was missing.

Update on my 800m training – Aug 2021

I’d say the past six weeks have been the most difficult block of training since I started in December. I knew this was going to be tough because the same block in January-February was tough. But it was tough for different reasons. Last time, it was tough because I got aches, pains and tightness as the training hit ‘new’ muscles and pushed me to my limits. This time, I just found myself struggling to hit target times and paces in many sessions. When I ran well, I ran really well but when it was poor, it was really poor!

There’s a few possible explanations for this. Firstly I came into it recovering from a strained hamstring, so fitness in the first week was below par, but the injury never recurred, and I’ve been strong since. I took the first week carefully and deliberately didn’t do some of the faster work.

Secondly I pushed the paces up to the level I felt I was achieving rather than following Jack’s guidelines. Maybe I expected too much? I don’t think so as when I’ve been on form, I’ve been smashing target times and numbers by a decent margin.

The most likely explanation is simply that I’m under-recovering. As I say, last time around I got tight with aches and pains; this time the body is used to using those muscles but they were still recovering from previous sessions.

The other reason for being under-recovered may be the return of parkrun. I’ve attended each week since it returned on July 24th and while I’ve been careful not to race them, I have been running close to my steady pace. This may just have been taking more out of my legs than I realised especially as it’s an undulating course on uneven paths.

The training itself has been a mix of three sessions – long intervals, short intervals and threshold runs.

Long Intervals

Long intervals have been the centrepiece of the work, starting at three minutes in the early weeks and lengthening out to five minutes by the last. I’ve been aiming to run these at 6:30/mile pace and when I’ve been on form, they’ve been fine.

In February I was on target, for 6:50/mile pace, 33 out of 34 times – just one effort too slow. This time it’s been about half. Weeks one, five, six have been complete misses while weeks two, three, four have all been on-target. This all-or-nothing phenomena supports why I believe the legs were under-recovered. At my best in week four I ran 5x1K all at sub 4-min pace (6:17-24/mile) but when I struggled I’ve barely been able to reach 6:35/mile pace.

Short Intervals

As ever these have ranged from 200 – 600m aiming for either 6min/mile or 5min30/mile pace. I’ve usually felt confident about achieving the slower of these efforts even when the interval length is longer but the reality is that often I’ve just been a touch slow – closer to 6:10/mile. The faster efforts have generally been daunting, because they usually crop up at the end and you wonder how you’ll ever complete them, yet quite often I’ve found something extra to give to them.

I’ve noted that while Jack gives you three mins jog recovery between these efforts, I’m usually recovering my pace and heart-rate within a minute to ninety seconds. Many years ago, when I was on the way to my first sub-40 10K, I was successfully running these sort of intervals with a 200m jog recovery that equated to 1min10.

Tempo / Marathon pace

The plan had three of the standard Sunday long runs replaced by these sessions. As it happened I only did the two Tempo efforts because I ran an all-out parkrun during the block. The Tempo runs seemed to come in comfortably around 7-min/mile which was what I was aiming for.

As I say, parkrun returned. I’ve been consistently hitting 7:20-25/mile paces without undue effort which seems to fit with my marathon pace prediction.  At the end of week five, I ran my all-out parkrun which came in at 21:24. I was expecting quicker – something in the 20:30-45 range – but the time reflected that my legs seem to have been missing something. The first kilometre was slower than my best interval efforts and the last two miles were slower than the pace of my Tempo runs.

To accommodate the Saturday morning effort, I ditched the plan’s 400m intervals on the Thursday and ran for 30-mins at Poole Park. I intended it to be an easy run but it turned out to be around marathon pace. On reflection it was probably too close to the parkrun for my legs to fully recover but it did effectively replace the planned 40-mins at marathon pace scheduled for the Sunday.

Strength and Conditioning

I’m going to write a separate post detailing the strength and conditioning I’ve been doing over the last couple of months. It’s not a massive amount – some corework, press-ups and bicep curls. They seem to have been beneficial in burning off a layer of body fat, which I didn’t know I had. No-one would ever have called me fat. On the heavy weights days I’ve found myself getting tired in the afternoons and I wonder if the energy used for recovering from these sessions has affected my recovery from running.

Running Form

As I’ve written in previous updates, I’ve been working on sprint drills and techniques during my short interval efforts and strides. I felt like it’s been heading in the right direction and in recent weeks I’ve noticed its effects coming through. I’m beginning to get up on my toes more, my core stabilising my running and best of all, finding myself trampolining down the road with each step. On a couple of occasions I felt the back of my shoulders get very painful towards the end of runs, which I see as a good sign – I’m engaging previously unused muscles that needed to develop the strength and endurance to hold the new running form together.

Summing Up

Writing all that up has given me some good insight as to what’s been going on. Week one, I struggled but was coming off the hamstring problem so accepted my fitness was slightly down. The next three weeks I began to really motor and feel confident about how I was progressing. It felt like I’d filled in a missing link that had stopped me from achieving my best in the time trials. But the combination of sessions, pushing them too hard, extra effort and parkrun may have been too much to run well in the final two weeks.

My mileage remains about the same as previously and the six weeks resulted in 43 / 43 / 44 / 46 / 41 / 48 miles. These have usually required about 6 hours training, but week five was 5hr30 as I tried to freshen my legs up and then week six came in at nearly seven hours!

Target timeOn targetMissedEffortsFastest
200m45s7310(2km)38.06s(5:06/mile)
41s88(1.6km)
300m1min01639(2.7km)58.99s(5:16/mile)
400m1min30516(2.4km)1:19.7(5:18/mile)
1min2211(0.4km)
500m1min5311(0.5km)1:53.9(6:07/mile)
600m2min156410(6km)2:07.4(5:42/mile)
I-Pace6min30211334(27.7km)
T-Pace7min0277(11.2km)
Total612586(54.5km)
Stats for those who love them!

Despite all the missed I-paced targets I feel positive. I’ve run my fastest 300s and 400s and not necessarily in perfect conditions. My very last session of the block was a repeat of one I did at the beginning. It began with three 600m efforts. In January, I ran these at around 2:20-24, in February it was 2:17-18, in July they were 2:15-16 and then this past week they came in at 2:07-08. My fastest in the last block, as I came to my peak, was only 2:05. It’s very gratifying to see some tangible progress and this wasn’t my hardest effort possible. There is more to come!

Return to parkrun

Even overnight rain and thunderstorms couldn’t dampen the enthusiasm for the return of parkrun. I was up at 6:15am for breakfast and headed out to Upton House parkrun a couple of hours later. As I parked the car, just a warm-up jog away, I saw familiar faces who I’d parked by so long ago.

Since I was last at the country park it’s undergone some renovations with bushes around the tea rooms being cleared and the children’s play area refurbished. Consequently the parkrunners have been shoved out through the gate to a new start line and the course revised. I quite like the new route as it’s more open although the uphill finish is going to be taxing when I get up to speed.

The Run Director struggled through the opening speeches because the PA system’s battery wouldn’t recharge after not being used in eighteen months but unusually all the runners stayed quiet so that was good. New parkrun protocols instruct the pre-start speeches to be over quickly and a prompt start at 9am to avoid runners gathering together too long. I was pleased we still had time to clap the one new First Timer who’d turned up, as well as the four runners who were about to complete their 250th run. Imagine being stuck on two hundred and forty-nine all that time.  For me, it was number three hundred and twenty-five – but no t-shirts for that!

It’s like Where’s Wally – I’m somewhere in there with the red headband!

With runners expected to seed themselves according to time, I positioned myself just level with the 25-min marker and it didn’t seem like there were too many ahead of me. I ran with Rob for the first 2K and it was nice to run unhindered, able to pass others easily whenever we needed to. At the start of the mini-loop, I left Rob as I took the brakes off and went with the downhill. Despite a light rain, it was all rather enjoyable and I gradually eased past some of the fast starters; always keeping my breathing easy. First mile 7:56, second 7:40, third in 7:26 to finish 49th in a time of 23:57.

Collecting my finish token there was lots of space past the funnel to go and get my token scanned. I then returned to the finish line, chatted to a friend and cheered runners in. The tailwalker came round in just over an hour to complete the field of 295. Elsewhere Poole had 565 and Bournemouth 529 which were the 3rd and 5th biggest attendances in the country, then add in Blandford 133 for a total of over 1,500 local runners out at 9am on a Saturday morning. A successful return for parkrun and I even had my result before midday. Admittedly it was 11:58am but it’s still impressive.

Update on my 800m training – June-July 2021

I’m now six weeks into the second time round with my 800m training. My first go-round, following a Jack Daniel’s plan, lasted from December to May and didn’t provide great results as my 800 time only improved from 2min58 to 2min53. But I knew I was running faster, felt fitter and hoped a second go-around would show better results.

This training block is full of intervals ranging from 200-600m in length. As you’ll see in the stats the vast majority are short with just four 600s planned. Last time I was aiming to run at 48sec/200m but later realised I should have been using 48½ which I could only just scrape on the 400s and 600s.

I’ve been working to 47sec/200m which is the training for a 2:52 800m. Trouble is, I’ve been averaging 43s for 200m, 1:31 for 400m and 2:15 for 600m. It seems like this reflects the discrepancy between my time trials and how I actually felt my fitness had been progressing.

More speed

Last time I tried to be accurate with my interval efforts – not going fast than necessary but always hitting target. This time I’ve thrown caution to the wind and allowed myself to run without holding back. That’s not to say I’ve gone all-out, I haven’t; just not held back.

Target timeOn targetMissedEffortsFastest
200m47s66470(14.0km)37.9s(5:05/mile)
400m1min342424(9.6km)1:26.83(5:49/mile)
600m2min21-2233(1.8km)2:13.78(5:59/mile)
Total93497(25.4km)
Some interval stats for those who love them!

I’ve also introduced 8 strides of 10secs after my Friday morning recovery run. Ideally Jack would have me doing these on two of my recovery days but I didn’t want to undermine my aerobic base too much. Last time around, I didn’t do any; this time I’m doing one set. Next time around, if everything is going well, I’ll introduce the other day.

I suspect it’s (a lack of) this faster running that was holding my 800m time back in the past. I’m beginning to see my fastest pace come down from 5min/miling to 4:30/mile during strides and this may partly be down to the limitations of how quickly my GPS watch can produce an accurate pace.

Injury risk

The bigger danger is pushing too hard may lead to injury and it happened. I suffered a minor hamstring issue in week 5. It was the final 200 of a session that had already totalled 2,800m, and when I’m feeling good as I was, I tend to like to finish strongly; so  I pumped my legs as hard as I could but felt a tightening in the right hamstring and it began to knot. I eased off, finished out the effort and jogged home.

I was fortunate to have this happen on the Thursday as it gave me five days to recover before my next set of intervals. I still ran on the days in between and by the Tuesday my legs were feeling great during the warm-up. I eased into the efforts but by the 4th 200 I was getting a sense I might not last. The next 400m I felt some tightening and on the next it was even more notable so I backed out and jogged home. That was last week and I missed the final day of intervals opting to keep runs easy and never push them along. I did a couple of strides on my Sunday long run and that seem to confirm the hammy is ok so I’ll resume training to the plan.

Long runs and mileage

The switch from a block of pure endurance work to repicking up speed work left the legs struggling on the general runs but it didn’t last past the first couple of weeks. But the introduction of the strides also sapped the legs going into the Sunday and so I haven’t seen much progress on their pace, they’re still around the same pace as last time around.

The six weeks of training I’ve done so far have resulted in 41.3, 45.1, 44.7, 45.7, 42.0, 43.8 miles.

Running form

Since April, I’ve been looking at how sprinters run and trying to apply some of their techniques and drills to my own running. The strides have been useful for this and I’ve particularly been focused on minimising hip rotation through better knee lift. I seem to be getting higher cadences on many runs and that’s going to be an important part of getting faster. The higher cadence corresponds with a concomitant rise in my glutes doing the work.


Once again I’ve really enjoyed this block of training. Getting out and running fast is fun especially as I’ve been finding it so easy to hit target. The hamstring injury is frustrating but I’m hoping that with the next phase of training being longer intervals at a slower pace that it’ll survive. I can run on it as long as I don’t overdo the forces going through it.

In the next phase, I’m meant to up my paces for fast efforts by a 1-sec/200m but, given I’ve been finding it so easy, I’m going to compromise by adding 2-secs so that I’ll actually be aiming for 45s per 200 which is what I’ve usually been running them at. This isn’t recommended as you should train at paces that relate to proven times and I haven’t actually run a 2:48 800 that would justify it.

Parkrun is also due to restart at the end of July and I’d like to attend. I’m not going to run hard every week but I’d like to see where I’m after all this training. I feel like I’m close to sub-20 form. It’ll mean dropping a workout, which isn’t ideal when you’re following a plan, but a fast parkrun will still have benefits.

But the priority is keeping the hamstring healthy.

Perception is reality

I never thought of myself as a decent runner. I may have mentioned this previously. I certainly never felt I had any natural talent for running. This wasn’t simply a case of low self-esteem or high personal expectations, life fed this back to me in clear, unambiguous terms. When I was at school I was at the back of cross-country. When we did sprints, I was at the back. When I ran around in the playground with friends they were always faster than me. When I went orienteering I was always one of the slowest in my age-category races.

The only time I ever got a hint I might have some ability was when I inter-railed to Greece with my friend, Steve, and we had a sprint race in the original Athens Olympic stadium.

Steve backdropped by the unusually shaped 1896 Olympics stadium

Admittedly I false-started to get a couple of steps lead on him but as the race went on he wasn’t overtaking me and I was holding him off. It might not sound like much except he’d broken our school record for 400m on sports day when we were in Sixth Form, I believe a time of 56 seconds. Our race took place a few years after leaving school and a couple of months before my first ever 10K race.

A young sun-bronzed traveller poses pretending to awaits the gun

October 1992 and if I could remember anything about my first 10K, I’d lovingly regale you with its story. I know it was in Totton, near Southampton, but I’m not even sure where it started or where the course went, only that I took 48-minutes. The race was full of club runners with a few outsiders like myself testing our mettle.

I know these bits because in those simpler, pre-digital times, races used to send out results booklets about a month after the race (as long as you gave them a self-addressed envelope). It contained a list of everyone’s times – often split into male and female races along with team races, course records, past results and it was all very nice laid out. I poured over it to find my name and time, and somewhere past the middle page staples I found, from clear unambiguous feedback, that I wasn’t that good. The fastest people in the field were close to thirty minutes, the slowest just over an hour, so my forty-eight minutes was closer to the back than the front reinforcing the idea I was below average.

It was no different when I ran my first half marathons four years later. I did three in a couple of months and they all came in around 1hr51 – give or take thirty seconds. Wading through the results, I was somewhere down around the 60th percentile. The fastest runners were closing in on 1hr05, the slowest taking 2hr15. Once again I was closer to the back of the field than the front.

My first marathon followed on soon after the halfs and at 4hr23 it was the same back-of-the-pack story. Among my small group of running friends, the talk was always of being good if you could break four hours so clearly I wasn’t. Obviously the sub-3 was vaunted and only for seriously good runners, I remember looking at the London Marathon results of the time printed, over the next five days, in one of the broadsheet newspapers and seeing that only a thousand of the 40,000 strong field had broken three hours. It seemed like a benchmark which only the talented could achieve. It was a pipe dream for a below-average runner like me. I was a long way off the decent times.


Even ten years ago races were still generally organised by clubs. There were more charity runners and non-club runners than before but it was all relatively niche and those latter categories tended to be bucket listers rather than regulars. The majority still belonged to clubs.

By then I’d improved to have run a 1hr38 half and a 3hr41 marathon, both of which began to give me the idea I was better than I realised but I still wasn’t sure of myself. Unfortunately I was mixing with friends who could run sub-3 marathons and break 1hr20 in a half. Nonetheless I began to find myself running paces I’d never thought myself capable of while training with runners who I saw as much better.

My early parkruns were usually placing somewhere in the top 30-40 in a field of 150-200. That’s not bad but it’s not outstanding. But when I got my training together and started going sub-20 each week, I found myself up towards the front and enjoying the open space of few runners around me. There was no longer a need to navigate through the runner traffic and it felt good to be ahead of the pack.

I also discovered RunBritain with its custom handicap system and ranking of your times against the rest of the running population. I began to see my times over 5K, 10K, half marathon were all good enough to rank in the top 10% that year. While I was miles off the times of the elites, it’s obvious top 10% is decent and it gave me a measure of satisfaction, or rather an accurate measure of where I ranked within the running community.


The growth of running during the 2010s took me by surprise. Professional events companies began to organise more of the mass participation races while an influx of Couch25K and parkrunners gve them a market to sell medals to. The composition of modern results looks very different now when compared to what I saw in the nineties.

Half marathons that once had a 2hr30 cut-off now happily extend those numbers out to three hours and beyond. The consequence of this became clear when one of my friends ran the Liverpool Rock ‘n’ Roll half marathon a few years ago. In a field of 7,000 runners she finished in the top half. In fact closer to the 40th percentile. Now, remembering that I used to be down at the 60th percentile with my 1hr51 times, you’d expect she must have been significantly faster than me, wouldn’t you? Except she wasn’t – her time was 2hr07. When I looked deeper into the results of that race, my 1hr51 times of twenty years ago would have put me in the top 15%.

There’s no doubt I improved over the years. But my move up the field was as much about the other people in the field as it was about me. Where my 20-min parkrun in 2011 gave me a RunBritain ranking of 11.4%, when I ran 19:39 six years later it now put me at 4.2%.  My time hadn’t improved but the attendance at parkrun had.


Your perception is shaped by reality.

What reality looks like depends on, how much of it ,and how clearly, you can see it.

When only committed runners took part in races, I perceived myself as a poor runner.

When races opened up to the general population, I began to perceive myself as a decent runner.

When parkrun began in Poole the majority were committed runners and my stock dropped again.

When parkrun grew, I once again began to see how far I’d come. Sometimes the evidence of your eyes and senses can fool or mislead you.