Sunday: The voyage to the wreck of the James Longstreet

The weather is beautiful.  70s, Sunny, brisk breeze from the Southwest, around 15 mph with gusts a bit stronger.

I am trying to do longer rows to get ready for the Blackburn Challenge and I have been trying to get experience rowing in bigger waves. Today’s breeze from the southwest provided a terrific opportunity to do that.

The mission for today was to row up to Wellfleet Harbor and then row all the way to the Red Bell Buoy marking the wreck of the James Longstreet.  This was a freighter that was used as a practice naval target during World War 2.  The wreck is now almost completely submerged, even at low tide, but the buoy provided a challenging target for today’s row.

Here’s the planned course.

Screen Shot 2017-06-11 at 2.54.40 PM.png

I started at WP0001, which is locally known as kayak beach.  I had printed out the chart along with course instructions.

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And then taped it in a ziplock bag to the deck beside the cockpit.  This worked out well, but I need to work on legibility.  I need to make the font bigger and come up with a way to identify waypoints, it was a bit hard to read when the spray was flying!

The actual track shows that I still have a lot to learn about steering in tidal currents.

Screen Shot 2017-06-11 at 1.30.30 PM.png

The first part of the row was slow and careful as I tried to pick my way between the shoals at low tide.  It wasn’t as bad as last time, but my oar blades were smooshing into the bottom on a lot of strokes.

I basically rowed straight to the green can, and then turned north to toward the inner harbor.  This was delightful downwind rowing.  There was a little bit of chop, and it was on my stern quarter.  There were some nice surfs along the way.

I got to the end of the breakwater, turned, had a quick drink and started to row against the tide and wind.  The first leg, down to a red buoy (WP0004), was good.  The waves weren’t that big and I wasn’t really taking on much water.  After the Buoy, when I turned to WP0005, I was heading straight into the wind and the building seas.  The section from about 7km to 11km was the toughest, slowest, wettest and most challenging rowing of the day.

Once I had the next buoy in sight (WP0005), I turned to the south, and then the wind was on my bow quarter.  This was a bit easier and my pace picked up a bit.  But as I came out from behind Billingsgate Island, I started to experience the long rolling waves that had built up across all of Cape Cod Bay.  These were long period waves, probably 2 feet high, with smaller chop breaking them up a bit.  There was a definite pattern of a few big waves, then a lull, then some more big ones.  It got a bit hairy as I approached WP0006, my farthest objective.  The waves seemed to get steeper over the shallower water here.  I was rowing to a compass course until I was able to see the buoy I was rowing for and then I turned straight to it.  Here’s a little narrative about my objective from the Embassy Cruise Guide to New England.

Screen Shot 2017-06-11 at 2.50.33 PM.png

I was quite glad to finally get around the buoy, and luckily I did not set off any unexploded bombs.  Then I had a long ride back with the waves on my beam and the wind behind me.

This was a different type of challenge, but quite fun.  My heading was not far enough downwind to surf the waves.  The thing that took some experimenting was figuring out how to deal with radically different water heights beneath each oar.  I found it easier with a slightly higher stroke rate.

Heading back, I navigated fine to WP0010, but after that, I maintained the right compass course, but I think the incoming tide pushed me quite a bit off course.  I rowed the specified distance from WP0010 to WP0009, but when I looked around, I could find the buoy at all.  I tried with and without sunglasses, and completely stopped the boat.  Well, that’s not good.

By now, it was a couple of hours after low tide, so I decided to deviate from the planned course and cut the corner to go home.  I was getting pretty tired and I had been out for over 2 hours.  But this was some of the most fun rowing of the day.  The wind and waves were on my port stern quarter, and the wave frequency was long enough that I could surf the front of a wave about every third stroke that I took.  When I caught the wave right, the last 3 feet of the stern would be buried and there would be a great swooshing noise from the bow.  It took some creative rowing to try to keep the waves from slewing the boat around through the process.

I navigated by eye around the north side of the island and pushed hard as I finished the last leg to Kayak beach.  I could barely stand up when I got out of the boat, but I was grinning from ear to ear.

The pace and HR plot below shows how it was tough to row hard when I was going into the wind and waves.  It was easier to push when I was surfing.

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It was quite a workout.  nearly 2 hours of UT1.  Total time on the water was 160 minutes.

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Workout Summary - media/20170611-171639-Greg Smith 20170611 0844amo.csv
--|Total|-Total-|--Avg--|-Avg-|Avg-|-Avg-|-Max-|-Avg
--|Dist-|-Time--|-Pace--|-Pwr-|SPM-|-HR--|-HR--|-DPS
--|25496|159:57.0|03:08.2|000.0|21.3|148.7|169.0|07.5
W-|25496|159:57.0|03:08.2|000.0|21.3|148.7|169.0|07.5

 

Below are pace and rate charts.  The one from on the left is from the speedcoach.  The one on the right from Crewnerd.  Speedcoach continues to have some trouble finding the stroke rate in rough seas.  But the pace information is a bit smoother.

Tomorrow:  Hopefully on the water in Newton.

M1 4 x 15′ / 4′ 7′ @ 5KP, 8′ @ MP 92.5% (172)

 

Thursday: 3 x 20’/2′ (mp, 10kp, hmp)

On Wednesday night I had a business dinner that went quite late, and I had an early meeting on Thursday, so no chance for an OTW session.

But, I managed to get stuff finished up by 5 and I had some time to do the session on the erg.

Plan:  Push it hard to see how I’m doing.

  • 3 x 20′ / 2′ rest
  • Target power
    • 1st:  mp (80 to 195).  Target 200W
    • 2nd: 10kp (210 to 225). Target 230W
    • 3rd: hmp (195 to 210). Target 215W
  • Nominal HR cap at 167.  But I planned to ignore that.

Well, I survived.  I went significantly over the cap.  The last 20 minutes were brutal.  The 20 minutes at 230W were pretty damn brutal too.

myimage (42).png

Workout Summary - media/20170608-2225210o.csv
--|Total|-Total-|--Avg--|-Avg-|Avg-|-Avg-|-Max-|-Avg
--|Dist-|-Time--|-Pace--|-Pwr-|SPM-|-HR--|-HR--|-DPS
--|16044|66:00.0|02:03.4|208.4|22.3|160.0|177.0|10.9
W-|15367|60:00.0|01:57.1|218.1|22.3|160.3|177.0|11.5
R-|00681|06:00.0|04:24.5|050.3|21.2|142.3|177.0|07.4
Workout Details
#-|SDist|-Split-|-SPace-|-Pwr-|SPM-|AvgHR|MaxHR|DPS-
00|05007|20:00.0|01:59.8|202.9|20.3|145.7|155.0|12.3
01|05238|20:00.0|01:54.6|233.2|23.5|165.1|173.0|11.1
02|05123|20:00.0|01:57.1|218.1|23.0|170.2|177.0|11.1

So, I actually pushed another 3 watts beyond the targets.  I sure paid for it though.

It was good to dig the deep hole and keep plugging.  Whenever I race, I worry about blowing up and embarrassing myself.  These sessions where you slow down, but don’t give up are a pretty good way to show some grit for that kind of situation.

I will probably do a 20 minute warmup only a little later today.

Race plan for Saturday.  The race is 2 laps of a 4km closed course.

  • Aim at a rate of about 22-24 depending on wind and wave conditions
  • Focus on steering and rowing clean
  • Try to keep HR below 170 in the first lap.  That’ll be an early sign that I’m pushing too hard.
  • I have very little idea what kind of pace I can sustain.  Probably about a 2:30 pace, but that’s a total guess.

Monday: 4 x 15′ / 4′ (6′ @ 5kp, 9′ @ mp) – cut short due to time

Weather:  Lousy.  Low 50sF.  Steady rain.

I decided that it would be best to do my session inside, so I drove to work and headed to the fitness center.

Plan:

  • 4×15′ / 4′ rest
  • 6′ at 5kp, 9′ at mp
    • 5kp target: 250W
    • mp target: 203W

I was very happy with how this workout went when I did it last weekend, and I was a little worried that it was a fluke.  Today would test the theory by trying to hold the same power.

To make a long story short.  It was fine.  Roughly the same HR response, Basically the same RPE.  I ran out of time after the last 6 minute segment, so I dug deep and pushed hard through the end of that segment.  I paddled for a couple minutes into the last interval to cool down.

I have to say that I like being able to stop a workout without finishing it.  In the rowpro days, I would have lost all my precious data if I had done that.

One other side note.  I have done about 5 or 6 sessions with the polar H7 and the PM5 on 3 different ergs and I haven’t had any issues with hangups or crashes.  I might give painsled another try with the H7.  I think my problems were related to the Tickr.

Otherwise, not much to report.

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Here is the workout compared to the one two weekends ago.

I’m heading to the airport in the afternoon for a quick trip to San Jose.  I will be coming back on the Tuesday night red eye.

Tomorrow:  rest day.

Sunday: 2 x 30′ / 2′

I hate the dynamic erg.  I never have a good workout on it.  It is unpleasant to row and very noisy.  I think it’s time to sell it and buy a model D.

You might guess that todays workout was not so good.  You’d be right.

The plan was

  • 2 x 30′ at mp or slower
  • 2 minutes rest
  • HR cap at 150

Just and easy session.  On a static erg, I would probably crank the first interval out at 180W and the second at 175W and it would be nice and easy.  On the dynamic, it was awful.  It felt like I was rowing through weeds the whole time.  I cranked the drag down to 1 (DF = 82 for the purists) and it still felt heavy.  I’m done with it.

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Workout Summary - media/Import_29874956.csv
--|Total|-Total-|--Avg--|-Avg-|Avg-|-Avg-|-Max-|-Avg
--|Dist-|-Time--|-Pace--|-Pwr-|SPM-|-HR--|-HR--|-DPS
--|14297|62:45.0|02:11.7|151.4|20.8|149.2|160.0|11.0
W-|13870|60:00.0|02:09.8|158.6|20.5|149.9|160.0|11.3
R-|00429|02:45.0|03:12.2|047.8|23.6|134.6|160.0|05.8
Workout Details
#-|SDist|-Split-|-SPace-|-Pwr-|SPM-|AvgHR|MaxHR|DPS-
00|07092|30:00.0|02:06.9|168.7|19.3|145.9|154.0|12.2
01|06777|30:00.0|02:12.8|148.6|21.7|154.0|160.0|10.4

Tomorrow:

M1 4 x 15′ / 4′ 6′ @ 5KP, 9′ @ MP 92.5% (172)

I’ll do the usual shortening of the 9′ segments.

power targets

  • 5kp: 197-210
  • mp: 158-171

Today I registered for my first coastal race.  The Provincetown Regatta, next Saturday.  It’s a little race.  8k long, two laps of an M shaped 4k long course.

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I am training through this race.  I am doing it mainly to get an event under my belt before the Blackburn and to meet some Cape Cod based rowers.

You can check out the race on regatta central

Provincetown Regatta

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Thursday: 4 x 15′ / 4′ (6′ @ 5kp, ~9′ @ mp)

Wednesday: Rest Day

Thursday:

Weather:  Beautiful.  We had a line of thunderstorms blow through last night and this morning was cool and dry.  There was a little bit of a breeze, which was generally a headwind heading up stream.

Plan:

M1 4 x 15′ / 4′ 6′ @ 5KP, 9′ @ MP 92.5% (172)

Power Targets:

  • 5kp: 197 – 210
  • mp: 158 – 171

This session needed to be modified slightly.  From end to end, the river takes 13 to 14 minutes to row.  I had two alternatives.  One was to turn and finish.  The other was to cut the mp section short when I ran out of river.  I decided to just cut them short.

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Workout Summary - media/20170601-134451-Greg Smith 20170601 0644amo.csv
--|Total|-Total-|--Avg--|-Avg-|Avg-|-Avg-|-Max-|-Avg
--|Dist-|-Time--|-Pace--|-Pwr-|SPM-|-HR--|-HR--|-DPS
--|14243|82:31.0|02:53.8|161.4|22.2|148.5|175.0|07.8
W-|11306|54:07.0|02:23.6|191.4|22.1|162.2|175.0|09.6
R-|02945|28:24.0|04:49.4|068.0|20.3|118.2|175.0|07.0
Workout Details
#-|SDist|-Split-|-SPace-|-Pwr-|SPM-|AvgHR|MaxHR|DPS-
01|01407|06:00.0|02:07.9|239.5|26.8|160.4|168.0|08.7 - w/ curr & wind
02|01386|06:43.2|02:25.4|171.9|18.6|153.9|168.0|11.1 - w/ curr & wind
03|01317|06:00.0|02:16.7|223.5|25.8|166.7|173.0|08.5 - against
04|01509|07:52.8|02:36.7|160.8|19.0|159.6|172.0|10.1 - against
05|01345|06:00.0|02:13.8|226.9|25.7|166.7|172.0|08.7 - with
06|01467|07:13.2|02:27.7|154.6|18.9|159.9|172.0|10.7 - with
07|01277|06:00.0|02:21.0|211.8|25.7|167.2|175.0|08.3 - against
08|01598|08:18.0|02:35.8|169.7|19.5|164.3|175.0|09.9 - against

So, the average power for the 5kp sections was 225W vs the 197-210 range, so a bit on the high side.  And the mp sections average was 164.25W vs the 158 to 171W, right in the band.  You can see at the end of the last interval where I started trying to chase the split going into the head wind and the narrowest part of the river with the most current.

Ideally, the power pie would be 24 minutes in 5kp, 36 minutes in mp.  You can see that basically all the 5kp target was rowed in a higher band.  The mp rowing was all over the map.

The stroke metrics were somewhat illuminating (to me).

Tomorrow:  steady state, technique focused, HR cap at 150.

Tuesday: 3 x 20′ (MP,10KP,HMP)

Weather: Overcast, cool, humid.  Light wind, headwind going upstream.

Felt very low energy in the morning.  Got up anyway.

Plan:

M2 3 x 20′ / 2′ MP, 10KP, HMP 90.0% (167)

Power targets:

  • MP: 158-171
  • HMP: 171-184
  • 10KP: 184-197

So, I had two different thoughts in my head.  One was the memory of the awesome workout I did on Saturday where I pegged the watts above the top end of the band.  The other was the empty legs feeling from the aborted workout Monday night.

For the first interval, aggressive Greg was dominant.  I rowed it at an average power of 176W (including the s-turn, but not the spin).  Or 6 watts above the top end of the power band.

Same thing in the second interval.  I rowed the first five and a half minutes at 196W watts avg, spun the boat, rowed another 3 minutes at about the same power, hit the HR cap, tried to slow down, and then bailed on the interval. I rowed the rest of it out at sub marathon power.

Chastened, I rowed the final interval smack in the middle of the power band, but it was massively hard to do.

I annotated the summary plot with the turns, rests and failures.

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The pie charts show elevated HR, and overly ambitious power.

There should be no 2kp and very little 5kp, basically just from starboard turning strokes.  There should be around 20 minutes of 10kp, 20 minutes of hmp, and 20 minutes of MP.  And then the balance sub-MP, about 15 minutes.  Lousy pace discipline.

I’m finding it hard to row to a target power.  It seems to bounce around a lot from stroke to stroke.  Perhaps that is an indication that my rowing is inconsistent. Perhaps, it is a characteristic of the measurement method.  I wonder if there is a way to have the speed coach show a running avg of the power over a few strokes?

Alternatively, I could try to row to a specific work per stroke and stroke rate.  That seems to be a bit let noisy on the display.

Workout Summary - media/20170530-172024-Greg Smith 20170530 0643amo.csv
--|Total|-Total-|--Avg--|-Avg-|Avg-|-Avg-|-Max-|-Avg
--|Dist-|-Time--|-Pace--|-Pwr-|SPM-|-HR--|-HR--|-DPS
--|13813|74:21.0|02:41.5|163.9|21.4|152.8|172.0|08.7
W-|11824|57:49.0|02:26.7|175.8|21.6|155.9|171.0|09.5
R-|01997|16:31.0|04:08.4|104.8|19.4|135.3|171.0|04.4
Workout Details
#-|SDist|-Split-|-SPace-|-Pwr-|SPM-|AvgHR|MaxHR|DPS-
01|02771|13:13.8|02:23.2|179.0|20.5|149.4|156.0|10.2 -1st mp
02|01431|07:04.8|02:28.4|172.5|20.3|155.2|159.0|10.0 -1st mp
03|01162|05:31.8|02:22.8|194.5|23.6|160.2|168.0|08.9 -2nd 10kp
04|00607|02:52.2|02:21.9|192.2|24.3|161.6|167.0|08.7 -2nd 10kp
05|00262|01:15.0|02:23.1|174.3|23.3|154.5|157.0|09.0 -2nd ease up
06|01664|08:13.2|02:28.2|154.9|19.2|147.5|160.0|10.6 -2nd post bail
07|03927|19:39.0|02:30.1|176.1|22.8|162.0|171.0|08.8 -3rd

I was wondering what the heck was wrong.  Why was I so tired.  I decided to do an experiment.  My HR monitor didn’t work on my long row on Sunday.  But, my guess was that I averaged about 150 for the 2 active hours of the row.  I manually doctors the CSV file for the row to insert 150 for the active part of the row and reimported it to Stravistix.  Turns out that a 2 hour workout at 150bpm is a TRIMP of 256.  It pushed me into overload.

Screen Shot 2017-05-31 at 11.51.09 AM

Then my aborted session and the Tuesday session kept me right on that line.  I’m not sure that this is exactly right, but I do think that rest will do me more good than working out right now, so I decided to sleep instead of rowing on Wednesday morning.

In the Eddie Fletcher Marathon Plan, he says that you may need extra rest days and you should not hesitate to take them.  Despite the fact that it I still have trouble believing that I can make more progress by doing nothing than by doing something, I should let the evidence and data guide my actions.  The important thing to me right now is to be able to do quality sessions, and especially to be ready and eager for the open water long rows that I do about once a week.  Those are the pinnacle sessions.

Wednesday: Rest Day

Thursday:

On the water

M1 4 x 15′ / 4′ 6′ @ 5KP, 9′ @ MP 92.5% (172)

Power Targets:

  • 5KP: 184-197
  • MP: 158-171

Saturday: 4 x 15 / 4′ (6’@5kp, 9’@mp)

We got to bed late on Friday night, and I was feeling lazy on Saturday morning, so I postponed my maiden voyage of Kanangra to Sunday.  The weather was going to be better as well.  Instead, I went out to the lumber yard to get wood to build a proper boat rack, and then I built a proper boat rack.

2017-05-27 13.50.26

Space for two coastal boats.  The old broken Alden Star on top and the New Maas Aero on the bottom.  I think I might swap that next weekend.  Getting the boat off the bottom rack is a bit of a tricky maneuver.

Anyway, by about 6pm, I was ready for an erg session.  Another session from the Marathon Plan.

M1 4 x 15′ / 4′ 6′ @ 5KP, 9′ @ MP 92.5% (172)

So, for target powers, I wanted to kick it up a notch.  Last week I did this with 9′ at 5kp and  6′ at mp, and this would obviously be easier at the same pace.  That session was 235W and 201W.  So today, I decided to aim at 250W and 203W.

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So, I did it and it was hard!

Workout Summary - media/Import_29819180.csv
--|Total|-Total-|--Avg--|-Avg-|Avg-|-Avg-|-Max-|-Avg
--|Dist-|-Time--|-Pace--|-Pwr-|SPM-|-HR--|-HR--|-DPS
--|17810|73:29.0|02:03.8|197.8|23.5|156.8|176.0|10.3
W-|15528|60:00.0|01:55.9|223.2|23.5|162.4|176.0|11.0
R-|02289|13:30.0|02:56.9|062.2|22.6|129.5|176.0|07.0
Workout Details
#-|SDist|-Split-|-SPace-|-Pwr-|SPM-|AvgHR|MaxHR|DPS-
00|01634|06:00.0|01:50.2|256.7|24.8|145.6|161.0|11.0
01|02263|09:00.0|01:59.3|204.1|21.4|155.3|161.0|11.8
02|01625|06:00.0|01:50.8|253.5|25.0|158.3|170.0|10.8
03|02259|09:00.0|01:59.5|203.0|22.0|164.1|170.0|11.4
04|01621|06:00.0|01:51.1|252.8|26.1|164.5|174.0|10.3
05|02253|09:00.0|01:59.8|202.3|22.7|168.7|174.0|11.0
06|01622|06:00.0|01:51.0|251.9|25.8|166.6|176.0|10.5
07|02251|09:00.0|01:59.9|202.1|22.8|171.0|176.0|11.0

Pleased with the steadiness of this effort, even when it got hard.

 

2 x 45’/4’30” (sub-mp)

Weather:  55F, light rain, wind started about 2-5mph from the south and building to 5-10mph from the east by the time I finished.

Plan:

M3 2 x 45′ / 4’30” MP or slower 80.0% (149)

Target power was ~160W, more important was the HR cap at 149.

I felt very tired this morning.  The long and hard sessions on Tuesday and Wednesday have taken their toll.  The marathon plan calls for 2 rest days a week, and I think you really need them.  It’s a ton of volume in the heavy weeks.

So, I had limited aspirations in terms of how well or fast I would row.  It was a good thing.  My rowing was sloppy and slow.  There was a bit of chop, but that did not entirely explain why my effective length was a good 5 degrees shorter today than yesterday.

In the end, between my inability to generate power, and the depressingly slow splits on the screen, I pushed a little bit beyond the HR limit.  Not enough to ruin the training effect of the session, but I wish I could be more mature about it.

Doing 45 minute intervals involved a lot of turns.  2 in the first one and 3 in the second one.  There was also a lot of twisty turny stuff at the beginning of the first and the end of the last interval.  I tried to make the turns as quick as possible.  I managed to keep all of them below a minute, except for the first one.  I need to spend a little extra time to do some “masculine rearrangement”.  Which turned out to be a bit of a challenge to do with one hand, in a sitting position.  (Sorry, TMI, I know)

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Workout Summary - media/20170525-152322-SpdCoach 2182533 20170525 0634amo.csv
--|Total|-Total-|--Avg--|-Avg-|Avg-|-Avg-|-Max-|-Avg
--|Dist-|-Time--|-Pace--|-Pwr-|SPM-|-HR--|-HR--|-DPS
--|18107|98:10.0|02:42.7|144.7|18.3|146.0|162.0|10.1
W-|17013|87:56.0|02:35.1|153.9|18.3|147.0|162.0|10.6
R-|01101|10:14.0|04:39.0|063.4|18.7|135.1|162.0|00.0
Workout Details
#-|SDist|-Split-|-SPace-|-Pwr-|SPM-|AvgHR|MaxHR|DPS-
01|03906|19:55.2|02:33.0|163.7|18.2|139.0|148.0|10.8 - #1
02|02833|14:27.0|02:33.0|157.2|18.2|145.9|156.0|10.8 - #1
03|01829|09:30.0|02:35.8|154.9|18.2|148.8|155.0|10.6 - #1
04|00427|02:13.8|02:36.7|167.6|18.2|137.4|149.0|10.5 - #2
05|02871|14:48.0|02:34.6|149.4|18.0|149.5|154.0|10.7 - #2
06|02009|10:31.8|02:37.3|152.0|18.7|150.7|156.0|10.2 - #2
07|03137|16:31.1|02:38.0|141.7|18.3|153.3|162.0|10.4 - #2

The summary here include all the weaker turning strokes.  When I prune strokes with a WPS below 400J, the session avg was 161W, right on target.

The usual collection of metrics.

You can see me lightening up in terms of power and WPS in the second interval as I tried to stick to the cap.  Finish and wash were much worse today than at 22 and 22 yesterday.  I think part of that was rowing at 18 spm.  Part of it was being really tired.

You can get a better idea of how bad my form was today by comparing it to other sessions.

  • stroke rate, lower than recent sessions.
  • Drive length a little bit shorter
  • Eff Drive Length shorter
  • Work per stroke, shockingly consistent
  • Finish.  Terrible
  • Wash: a smidge worse
  • Catch:  consistent
  • Slip: slightly worse (I suspect both slip and wash are strongly related to stroke rate)

Tomorrow:  rest day (I need it)  And I go pick up my new Maas Aero so I can try it out over the long weekend!

Side Note:  Stravistix seems to agree that it’s time for a rest day!  But on the plus, my fitness is definitely going in the right direction.

Screen Shot 2017-05-25 at 3.48.10 PM.png

 

Tuesday: 4×15’/4′ (7′ @ 5KP, 8′ @ MP) Marathon Training OTW

Weather:  Lovely.  Sunny.  Temperature was around 60F.  There was a moderate 5-10mph breeze from the WNW.  This was a cross/tail wind heading down river and the cross/head wind going upriver.  (But since I was going to row to power, that didn’t matter!)

Plan:  This was the first time I would be doing one of the Fletcher Marathon Plan sessions on water.  I figured I would need to be a little flexible to make it work.

  • 4 x 15′ / 4′ rest
  • In each 15′ interval
    • 7′ @ 5KP (which is 220 to 235W on the erg)
    • 8′ @ MP (which is 180 to 195W)

As for adaptations.

  • I have about 3000m of river that I can row at high pressure.  This takes me a little bit less than 15 minutes.  I decided to keep the 7′ at 5KP and then just stop short of 8′ if I ran out of river.  This would be more of problem downstream than upstream, both because of current and also the headwind.
  • Power:  I decided to try to row to my erg power specs.  I suspected that this would be really hard, and it was.  After I rowed, I listened to a great podcast about rowing with power meters which said the average difference between erg and OTW powers was in the range of 13% to 16%.  Interesting tidbit.  If I had know that, the targets would have been substantially reduced.

Screen Shot 2017-05-17 at 8.26.07 AM

  • Rate:  I have somewhat arbitrarily decided to match rate to these powers as follows
    • 5KP: 24-26
    • 10KP: 22-24
    • HMP: 20-22
    • MP: 19-21

So, how’d did it go?  It was a really tough, but awesome workout.  I dug very deep to get it done and I definitely faded in the later reps, but I stayed focused and got it done.  From a TRIMP perspective, it was the hardest workout I’ve done since the end of January (HR based TRIMP of 195)

5-16p

Here’s the interval summary from rowsandall

Workout Summary - media/20170516-135626-SpdCoach 2182533 20170516 0639amo.csv
--|Total|-Total-|--Avg--|-Avg-|Avg-|-Avg-|-Max-|-Avg
--|Dist-|-Time--|-Pace--|-Pwr-|SPM-|-HR--|-HR--|-DPS
--|14847|77:09.0|02:35.9|169.6|21.9|159.7|177.0|08.8
W-|11373|53:49.0|02:22.0|194.5|22.6|167.7|177.0|09.4
R-|03482|23:20.0|03:21.1|093.3|19.1|137.4|177.0|07.9
Workout Details
#-|SDist|-Split-|-SPace-|-Pwr-|SPM-|AvgHR|MaxHR|DPS-
00|00005|00:00.0|00:00.0|087.0|17.0|085.0|85.0|00.0
01|01613|07:00.0|02:10.2|224.6|24.3|164.0|170.0|09.5 - 255-240W
02|01258|05:51.0|02:19.5|190.8|20.1|165.0|170.0|10.7 - 180-195W
03|01454|06:48.0|02:20.3|215.7|24.8|168.0|176.0|08.6
04|01371|07:00.0|02:33.2|170.4|20.4|169.4|176.0|09.6
05|01508|06:52.2|02:16.7|204.3|25.5|167.9|176.0|08.6
06|01356|06:22.2|02:21.0|178.5|20.1|169.4|176.0|10.6
07|01445|06:55.2|02:23.7|202.0|25.1|167.9|177.0|08.3
08|01364|07:01.2|02:34.3|168.3|20.2|169.7|177.0|09.6

So, I tried hard, but I couldn’t hit the erg based targets.  But I was ahead of the 15% derated targets.  For now, I will aim at the top end of the OTW target range.

I’m using the impeller on the speedcoach to try to avoid stream effects on the live pace display.  I’ve tried to calibrate the impeller input, but based on a comparison of the speedcoach and GPS data today, I think my cal factor might be a bit slow.

Workout Summary - media/20170517-123357-87478o.csv
--|Total|-Total-|--Avg--|-Avg-|Avg-|-Avg-|-Max-|-Avg
--|Dist-|-Time--|-Pace--|-Pwr-|SPM-|-HR--|-HR--|-DPS
--|15674|81:34.0|02:36.1|000.0|21.4|0.0|000.0|09.0
W-|11886|54:28.0|02:17.5|000.0|22.7|000.0|000.0|09.7
R-|03793|27:06.0|03:34.4|000.0|18.5|000.0|000.0|08.2
Workout Details
#-|SDist|-Split-|-SPace-|-Pwr-|SPM-|AvgHR|MaxHR|DPS-
01|01645|07:00.0|02:07.7|000.0|24.4|000.0|0.0|09.6
02|01325|06:00.0|02:15.8|000.0|20.2|000.0|0.0|11.0
03|01594|07:00.0|02:11.7|000.0|25.0|000.0|0.0|09.1
04|01478|07:18.0|02:28.2|000.0|20.5|000.0|0.0|09.9
05|01570|07:00.0|02:13.7|000.0|25.5|000.0|0.0|08.8
06|01314|06:10.2|02:20.9|000.0|20.2|000.0|0.0|10.5
07|01529|07:00.0|02:17.3|000.0|25.2|000.0|0.0|08.7
08|01431|07:00.0|02:26.7|000.0|20.2|000.0|0.0|10.1

I compared the paces.

5-16a.png

So, based on this data, I think my impeller is reading about 4.5 seconds slow.

This row gave me a treasure trove of data to look at the state of my rowing technique.  Here is a gallery of the plots that I did.

  • Power and pace vs stroke rate:  pace is bimodal due to headwind.  Power is not.  Pretty wide spread because of the way I started faster and faded
  • Effective length vs stroke rate:  Slightly longer at r24 than at r20.  This is pretty consistent with what I’ve read in Kleshnev and other places
  • Wash:  Wash got a little bit worse as I got more tired, but I think it is pretty good.  I guess my finishes are in OK shape.
  • Slip:  Lower slip values at r24.  This is where the better length is coming from.  I am attacking the catch with more enthusiasm at the higher stroke rate.  Not sure if that is a good thing or a bad thing.  I need to figure out if it is resulting in a more fficient generation of boat speed relative to the effort (power).  That will be a longer term project.
  • Catch:  consistent.  A little degradation in the last interval.  Certainly more variation from stroke to stroke.
  • Finish:  Better and more consistent at r24.  You can see how I was really struggling at the beginning of each of the r20 sections.  I dug a deep hole with the higher power segments, and when I gear shifted I struggled to take full strokes.
  • Effective length vs time:  You can see the effect of me gasping for breath at the beginning of the MP sections, especially in the later intervals
  • Work per stroke vs time:   I filtered the data to do two plots.  One for r24 and the other for r20. Very clear reduction in r24 WPS over the workout.  I was rowing to lower power and slightly higher rate.   This is physiological, not technique.  In the r20 sections, you can see me digging out of the lactate hole through each of them and finishing stronger.

5-16h

Now I am flying out to LAX.  I will take today as a rest day.  Tomorrow morning, I have two possible plans.  If I stay over I’m planning to visit Crossfit Anaerobic in Irvine and do this session…

M2 4 x 20′ / 2′ MP, 10KP, HMP, MP 90.0% (167)

I might take the red eye home.  If I do that, I have my rowing gear in my car and my plan would be to stop and row on my way home from the airport.  The plan would then be to do a version of this OTW.  Each section would probably be closer to 15 minutes.