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Training diary and random remarks around my rowing
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chart (3)

Apr 10 2015

1:39 into headwind OTW

chart (3)

RIM

A technique session in the single. It was 10km in total and I was running the Rowing in Motion app. Unfortunately, the first 30 minutes of recorded data were lost.

I was rowing 20spm alongside one of our juniors. In the first part of the session, the “stroke efficiency” showed numbers between 1.3 and 1.5. Pretty strange.

Even stranger was when I did a race start. I saw 1:00.0 as a pace … !!!

Then the clock hit 30:00.0 in the app and poof! The app crashed. So I stopped and restarted the app.

Suddenly I the pace numbers were much more stable, and the “stroke efficiency” numbers were 2.5 to 3.0. Weird.

When I tried to upload the data, the first half of the training was gone.

Anyway, see the images for the analysis of the part of the trainng that was recorded. The fast strokes was a race start. Apparently 5.02 m/s, which would correspond to a 1:39.6 pace … in headwind! Well, I did it for just 15 strokes.

The metrics are comparable to what I rowed at 18 to 22spm in November.

By sanderroosendaal • Uncategorized • 0 • Tags: lake, OTW, RIM, rowing, rowing data, rowinginmotion, single

11133642_868687999856140_1992779044006365144_n

Apr 9 2015

Pete Plan 3km/2.5km/2km in the double

Today I stickered the boat name to our new double. I will keep it secret until Saturday’s christening ceremony.

In next week’s races, I agreed to race the double with Michal, so today we took the double out for a row. It was relatively flat water on the lake, for the first time in ages. I gave Michal the choice between a 3km/2.5km/2km or a steady state row. He chose the first one.

He has only started to train again recently. It showed. He became tired relatively quickly.

michin

michinspm

Still a good workout. In the first interval, the 3000m, we had to do a hard stop about a minute into the row, because a single had decided to turn and didn’t see us coming. We also had wake of three motor boats. Two coach launches and one motor boat with guys from the sailing club taking their kids for a ride. These were the worst, because they didn’t slow down for us and were basically doing circles on the lake.


|Dist_|Time_|Pace__|_SPM___|avg HR|max HR|DPS|Remarks
|02226|13:47|03:05.8| 19.2 | 124 | 169 |08.4|Warming up
|02998|12:46|02:07.7| 25.5 | 170 | 180 |09.2|3km headwind, wake
|00677|04:59|03:41.0| 19.6 | 142 | 180 |06.9|rest
|02497|10:07|02:01.5| 25.6 | 176 | 181 |09.6|2.5km tailwind
|00642|04:58|03:52.2| 19.3 | 144 | 179 |06.7|rest
|01993|08:39|02:10.2| 25.4 | 175 | 181 |09.1|2km headwind
|01075|07:03|03:16.8| 17.5 | 134 | 181 |08.7|cooldown

The summary:

dist_____|time_____|_pace___|_HR__|_SPM__|_DPS|comment
2226_____|_13:47____|_3:05.8
|124|19.2|8.4|warmup
7489_____|_31:32____|_2:06.3
|173|25.5|9.3|Main set
1075_____|_07:03____|_3:16.8
|134|17.5|8.7|Cool down
1318_____|_09:57____|_3:46.4
|143|19.4|6.8|rest meters
12108____|_02:19____|_2:34.4
|155|21.2|9.2|_Total

And finally another nice picture from last weekend’s racing:

11133642_868687999856140_1992779044006365144_n

By sanderroosendaal • Uncategorized • 0 • Tags: double, lake, OTW, pete plan, rowing, training

Brno,_hrad_Veveří_a_lávka

Apr 8 2015

Pyramids to Castle (and back)

Heavy day at work. We had the “regional” (Europe, Middle East, Africa and India) president of Honeywell visiting us and I had to present Advanced Tech to him. I think it worked out well but I found myself in my office at 4:30pm not able to do anything productive any more. Energy draining.

It was windy again and the lake was full of waves, so I decided to do the workout on the river part. More people had that idea. I ended up chasing, then being chased by our 16 year old single sculler and two pairs.

The workout was the Pete Plan Pyramid. I have a 2km race in a week and a half, so I thought a bit of 2k speed work would be appropriate:


|Dist_|Time_|Pace__|_SPM___|avg HR|max HR|DPS|Remarks
|02613|15:13|02:54.7| 19.2 | 142 | 154 |09.0|Warming up
|00251|01:05|02:09.4| 28.5 | 166 | 175 |08.1|250m headwind
|00249|01:24|02:49.0| 20.1 | 166 | 176 |08.8|rest
|00499|02:09|02:09.2| 28.1 | 175 | 180 |08.3|500m headwind
|00500|02:46|02:46.1| 20.0 | 164 | 180 |09.0|rest
|00750|03:17|02:11.3| 28.4 | 177 | 181 |08.0|750m headwind
|00751|05:04|03:22.3| 19.3 | 147 | 180 |07.7|rest; turn
|00998|04:10|02:05.2| 27.8 | 173 | 181 |08.6|1000m tailwind
|01003|05:27|02:43.0| 19.0 | 150 | 181 |09.7|rest
|00749|03:05|02:03.5| 28.2 | 174 | 179 |08.6|750m tailwind; twisty
|00750|03:56|02:37.4| 19.4 | 158 | 179 |09.8|rest
|00501|01:59|01:58.7| 29.0 | 174 | 181 |08.7|500m tailwind
|00498|02:41|02:41.7| 19.5 | 161 | 181 |09.5|rest
|00245|00:58|01:58.5| 29.4 | 166 | 175 |08.6|250m tailwind
|00909|06:35|03:37.2| 17.8 | 137 | 175 |07.8|cooldown

Since I have my new wing rigger, I had the feeling my left scull has a slightly too large blade angle. Something was not feeling right and I felt that I ended up holding the left handle with a too tight grip. So on Monday I measured the oarlock angle and indeed found it to be at 5 degrees instead of 4. So I corrected.

During the first 750m I suddenly found myself wondering about my left oarlock again so I looked. To my horror I discovered something worse. The pin had come slightly lose and was wiggling slightly.

That made it hard to do the rest of the workout at full pressure.

On the other hand, I thought, I need to train not to dig too deep and too strong, so this would be good exercise. Still, one ends up a little insecure, so I was going at slightly slower stroke rates.

For real 2k speed work I need to get the rate up to 32spm.

pyramide

pyramide_spm


dist_____|time_____|_pace___|_HR__|_SPM__|_DPS|comment
2613_____|_15:13____|_2:54.7
|142|19.2|9.0|warmup
3994_____|_16:43____|_2:05.6
|174|28.3|8.4|Main set
0909_____|_06:35____|_3:37.2
|137|17.8|7.8|Cool down
3750_____|_21:18____|_2:50.4
|155|19.4|9.1|rest meters
11266____|_59:49____|_2:39.3
|155|21.2|8.9|_Total

Here is the castle at the turn around point:
Brno,_hrad_Veveří_a_lávka

So after the training I spent some time tightening the pin, measuring the outboard and setting (back to were I started) the oarlock angle. Apparently, when I got my new wing and mounted the oarlocks, I didn’t tighten this one enough, and it started to work with the first row, slowly getting more and more wiggly …

By sanderroosendaal • Uncategorized • 0 • Tags: OTW, pete plan, river, single, training

vrijdag

Apr 7 2015

Colorful graph tools – TCX to Excel

Just some notes on a training-free day. I had too much work backlog because I had Friday off and Monday was NOT a holiday in the USA.

There has been some discussion on the Free Spirits blog about the excel tools that are circulating. It all started with the “Danburpee” spreadsheet to read CSV data from RowPro into Excel and make colorful graphs. Such as this one:

vrijdag

From Gregory Smith (quantifiedrowing.wordpress.com), I received a similar spreadsheet to read in CSV files exported from CrewNerd.

I modified it to read in CSV files created from TCX exports from Garmin Connect (or Sporttracks), using TCX Converter (http://www.tcxconverter.com/TCX_Converter/TCX_Converter_ENG.html).

Recently I started using CrewNerd only, so I converted my Garmin tool to read CSV files created from TCX files exported from CrewNerd. I wanted it to work with the TCX export of “custom workout” CrewNerd recordings. The challenge was that the “distance” field reset to 0 each time a new interval was started. So I calculated total distance from the coordinates fields. Here I possibly create an error and indeed I see a 50m difference over a 15km workout, 0.5%.

The circle is almost round.

Now reworking that one to import TCX files directly and avoid a few steps. 🙂

Changed the macro to read TCX. The only minor flaw is that you have to OK some warning messages about incorrect XML. Now I just need to copy-paste the right columns into the source data fields of my spreadsheet.

Ah, the joys of messing about with data. Perhaps I should also start importing Crewnerd stuff into SciPy.

By sanderroosendaal • Uncategorized • 0 • Tags: crewnerd, rowing data

Horin 2015 023

Apr 6 2015

15k in the double

Back on our home lake. While river dwellers have water like this (photographed yesterday at the Elbe river in Pardubice):

Horin 2015 023

We have huge waves with the slightest wind.

We spent an hour rigging the singles and measuring the blade angles. Since I had my new wing rigger, I had the feeling that my left oar was slightly off. Indeed, it moved from 3 degrees to 4 degrees with the new wing.

Then we took the double out for a row. Romana wanted to do some L4 work but she wanted “structured”. First we thought we would do 4×10 minutes, but the south end of the lake was unrowable. So then we dialed up a 4x2km which we would do in 24spm. The first two we did on the relatively quiet part of the lake but as the wind kept turning we ended up rowing in huge waves anyway, so the last two intervals were done on the river.


|Dist_|Time_|Pace__|_SPM___|avg HR|max HR|DPS|Remarks
|02547|16:50|03:18.3| 19.5 | 122 | 160 |07.8|Warming up
|02002|08:23|02:05.6| 23.8 | 161 | 169 |10.1|tailwind, on lake
|00818|05:01|03:04.0| 19.3 | 130 | 167 |08.4|rest
|02003|09:38|02:24.3| 24.2 | 167 | 172 |08.6|headwind, on lake
|00728|04:59|03:25.4| 19.5 | 132 | 166 |07.5|rest
|02002|09:33|02:23.1| 24.0 | 165 | 168 |08.7|headwind, on river
|00619|05:00|04:02.3| 19.0 | 123 | 156 |06.5|rest
|01999|09:07|02:16.8| 22.6 | 156 | 162 |09.7|varying wind, on river
|02741|16:22|02:59.1| 18.9 | 129 | 143 |08.9|cooling down

4x2km_spm 4x2km


dist_____|time_____|_pace___|_HR__|_SPM__|_DPS|comment
2547_____|_16:50____|_3:18.3
|122|19.5|7.8|warmup
8006_____|_36:41____|_2:17.5
|162|23.6|9.2|Main set
2741_____|_16:22____|_2:59.1
|129|18.9|8.9|Cool down
2165_____|_15:00____|_3:27.9
|128|19.3|7.5|rest meters
15459____|_24:53____|_2:44.7
|142|20.9|8.7|_Total

By sanderroosendaal • Uncategorized • 0 • Tags: double, lake, OTW, training, wind

Apr 5 2015

My rowing data toys. All good.

Here is Friday’s training, data captured with the XGPS160 and the Wahoo Kickr:

vrijdagspm vrijdag

All works fine. The XGPS160 makes the pace data in the CrewNerd app super fast and precise. There is no need for data smoothing any more. The Wahoo Kickr gives accurate HR response data, so with these two toys I can leave the Garmin at home.

The anti-slip pad on the XGPS160 works perfectly. It holds when I carry the boat upside down. The only thing I am afraid of is losing the device if I would flip.

Here are the data of yesterday’s race. No HR data because I don’t like to wear a HR band during races.

Horin Race 2015

horin

By sanderroosendaal • Uncategorized • 0 • Tags: crewnerd, rowing data, rowing mechanics, rowing physics

Horin 2015 024

Apr 5 2015

More Puddles (Race Report)

Race

Where did I leave you, dear reader?

Ah, I remember.

I, bow nr 351, had just overtaken a second single sculler, I was making progress on taking over bow nr 352, and I had bow nr 350 on my heels. I was doing 29spm into the headwind, and I was starting to get tired.

I started noticing the occasional 28spm. Remembering how I slowed down in the middle 2km of last year’s edition, I tried to keep the rate up and tried to keep #352 behind me as long as possible.

But he was gaining on me. I wasn’t wearing my HR belt, because in races I don’t want to wear anything that restricts my breathing, but I was clearly in the red.

I knew our head coach would be waiting at the half way point and I had told him to tell me to not dip the blades too deep and keep sending the boat. That forced me to focus on technique, even though the head coach never appeared at the 3km point.

So I passed the 3km, 3 more to go. Nr 352 was rowing in my puddles, and I was rowing in nr 350’s puddles.

Not much changed between 3km and 3.5km, except that I crept a little closer to #350, and #352 kept a little closer to me.

The situation now started to be precarious, because the last 1000m is a slow turn, so in my mind I had to chose between letting him pass and be able to row the shortest course in the turn, or risk being passed in the turn and having to row the wider curve.

To make matters worse, #350 was right in front of me on the right-hand side of the canal. This canal is too narrow for three singles, and both #352 and I were gaining on #350.

What to do?

The mind does strange things when you’re at 29spm and your heart is beating at 185bpm, and you still have more than 2km to row.

I saw three options:

  1. Go to other side of canal, right in front of my pursuer, losing distance on him, and risk being disqualified for hindering an opponent, in order to pass #350.
  2. Keep rowing straight into #350 and force him to the other side, thus forcing him to hinder #352 and risk being disqualified. Or, he would keep rowing in front of me so I would be in his puddles, be forced to slow down, and then pass him on the other side.
  3. Slow down ever so slightly, let #352 pass, then sneak up behind #352 and pass #350.

Option 3 seemed the smartest at the moment. Also, my head liked the idea of slowing a little and then going full speed ahead.

Option 3 it would be. What I didn’t realize is that my option 3 had a hidden assumption, that is that when you pass someone, you pass him fast and make sure you gain on him even after you passed him.

I slowed down a little, which Crewnerd immediately noticed. I started seeing the 2:10s on the pace window.

What the heck? Nothing happened. Our relative positions remained the same. I didn’t want to slow down more …

It took about 500m for #352 to come beside me and he kept rowing there.

“GO!” I shouted to him.

“I am trying,” he replied.

What to do now that my perfect plan was showing some imperfections? I could still see #350 right in front of me in my mirror, and I could feel his puddles.

“GO!” I shouted. I wished I had the breath to add some explicit language. I didn’t.

He finally passed me just before the bridge marking the start of that final turn.

The worst place to be for me, because now I was in double puddles under a bridge. So while I was trying to get back my speed I had to row in puddles and wake reflected by the concrete bank in the bridge. I could really feel my single going up and down and left and right. Still, I managed to increase the rate. It helped that at this point Romana shouted at me.

What did she shout?

“Come on, you can take over both of them!”

Good motivation.

I also noticed daughter Lenka on the bank. She didn’t shout anything, too embarrassed to be caught cheering for her father. I didn’t mind. I was going to rate up anyhow.

Mister 350 took the inner side of the turn as well, so it took Mister 352 a lot of time before he could pass Mister 350. All the time I was rowing in both gentlemen’s puddles. On the last straight 300m to the finish, Mr 352 managed to pass Mr 350, with me on his tails and pushing.

Now we were rowing in front of the public.

No light between 352 and myself. My bow ball must have been right next to his stern. I started to pass 350.

Beep. Beep Beep.

Something in me wished there was another 1000m to race.

I paddled a few strokes. There isn’t much to paddle there, because the lock is only 100m after the finish line. Here’s my post finish dialogue with #352, the guy who took more than 1000m to pass me.

  • Man, you should have passed me quicker.

  • I know but I had a crisis. The finish was still so far.

I managed to sneak in front of 350 on the little dock space available and I took endless time to take out my sculls, put on a warm layer of clothing, remove the GPS and iphone, and then lift the boat out of the water.

Post Race

There you are, carrying a single but not knowing where your club’s trailer is. With very very very tired legs. In a very busy finish area. Everybody is rushing somewhere. Nobody to help.

I managed to drag myself 100m further and find our trailer without dropping my single. I had to ask someone to put up some slings for me to put my single in. I am afraid I was a little grumpy by then.

When I finally could put down my boat and start to prepare it for transport, I could get a little rest.

When all was ready, I went to buy myself a nice grilled sausage and some warm tea, which at that moment seemed the ideal combination to me. Hot grilled sausage with mustard. Hot tea. Heaven.

Here’s my final ranking. Looking at the scores, I must have passed another boat, the #344 who DNF.

Horin 2015 020

Horin 2015 021

So I came 14th of 20, not bad for a 42 year old in a field where the second oldest is 12 years younger. I am not worried about being 3 minutes behind Olympians. I am quite happy to have finished in front 2 rowers of LSBR, Lodni Sporty Brno, the rowing club on the other side of the lake. 🙂

If I had finished 15 seconds earlier, I would have been on a 12th place which earns points for our club. A year ago I finished 12th but 12th out of 15.

I did the course in 20 seconds slower than a year ago. But a year ago, there was no wind and they were feeding the canal with river water, causing a slight flow. So I consider this year a stronger effort.

Some pictures taken after the finish. I love this 19th century lock and the view on the town of Melnik:

Horin 2015 017

Horin 2015 018

Horin 2015 024

What followed?

An hour and a half of driving to Pardubice. A stop at a gas station where I saw my reflection in the window, a very tired man in sweaty rowing clothes. A tired but happy man. I paid for the gas and added two bottles of Pilsner Urquell and a bottle of wine.

In Pardubice, at my mother-in-law’s place, I quickly wrote up the first part of this blog and then spent the evening talking rowing with Romana and my brother-in-law.

In the end I think the drama of #350, 351 and 352 gave me enough adrenalin to compensate for the time lost in the slowing down to let 352 pass maneuvers.

By sanderroosendaal • Uncategorized • 0 • Tags: head race, OTW, single

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