Attention Data Nerds!

General discussion on Training. How to get better on your erg, how to use your erg to get better at another sport, or anything else about improving your abilities.
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gregsmith01748
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Attention Data Nerds!

Post by gregsmith01748 » November 3rd, 2016, 2:08 pm

Are you a fan of big data? Do you obsessively analyze how well you did in your last rowing session? Do you foundly long for the days when you used ergmonitor?

No? Then move along, you won't care about what come next.

OK, so, if your still reading, then I have news for you. If you are using a PM5, go and get yourself a copy of PainSled from painsled.com/ and install it on your android or iphone. Figure out how to use it (which is not at all hard) and then use it to capture more data about your rowing than you ever imagined needing or wanting.

It captures data on drive length, peak force, average force, plus all the usual power, pace, SPM and HR. Now that you have all that data, how the heck can you analyze it?

I'm glad you asked. A friend of mine has created a website that let's you upload and analyze painsled files (it also can work with ergdata, ergstick, and a bunch of OTW rowing data, but that's a story for another post.) Once they are there, you can do some amazing things. You can look at it at a summary level.

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When you look at that and you want to understand how peak force changes with stroke rate, no problem...
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You can slice the data in many ways to try to understand what your strengths and weaknesses are on the rower.

It's all over at rowsandall.com

disclosures: I have no interest in painsled. I helped develop some of the plotting code for rowsandall.com, but have no financial interest.
Greg
Age: 55 H: 182cm W: 90Kg
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jackarabit
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Re: Attention Data Nerds!

Post by jackarabit » November 3rd, 2016, 2:30 pm

Playing about with ErgData.xlsm today. Never did get it to work like the Burpee predecessor for RP. Sounds like Sander has the stuff. Oh my way; many thanks.
There are two types of people in this world: Those who can extrapolate from incomplete data

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Tim K.
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Re: Attention Data Nerds!

Post by Tim K. » November 3rd, 2016, 2:56 pm

just tried the website and it is down. Does it have the resolution to be able to analyze each stroke? Ie will it generate a work graph for individual strokes (displacement vs force)?

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gregsmith01748
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Re: Attention Data Nerds!

Post by gregsmith01748 » November 3rd, 2016, 3:15 pm

Tim K. wrote:just tried the website and it is down. Does it have the resolution to be able to analyze each stroke? Ie will it generate a work graph for individual strokes (displacement vs force)?
I was just on the site and I had no trouble with it being down. What symptom are you seeing?

RIght now, painsled does not provide force curve data. Essentially, you get a single record of data per stroke. But you can tell a lot about a stroke by looking at peak force, average force, drive length, drive time and recovery time.
Greg
Age: 55 H: 182cm W: 90Kg
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gooseflight
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Re: Attention Data Nerds!

Post by gooseflight » November 3rd, 2016, 3:33 pm

Greg,

If you have an open line to the developers >please< get them to implement a drive:recovery 'meter' like ErgMonitor :idea: :idea:
Roy Walter
M55 | 185cm | 90kg | Journeyman Erger
PBs (2004): 6:38 (2K) | 5:22.9 (mile) | 17:39.6 (5K) | 8323 (30 mins) | 36:52 (10K) | 1:22:03 (HM '05)

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gregsmith01748
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Re: Attention Data Nerds!

Post by gregsmith01748 » November 3rd, 2016, 4:27 pm

gooseflight wrote:Greg,

If you have an open line to the developers >please< get them to implement a drive:recovery 'meter' like ErgMonitor :idea: :idea:
Hi Roy,

That would need to be an enhancement to the painsled software. The website is an "after the fact" analysis tool. As I understand it, the drive recovery meter is a live stroke by stroke thing, right? I think that's a great suggestion. I'll pass it along to Rick Terrell, the painsled dude.
Greg
Age: 55 H: 182cm W: 90Kg
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Tim K.
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Re: Attention Data Nerds!

Post by Tim K. » November 3rd, 2016, 11:02 pm

I still cant access it.
The rowsandall.com page isn’t working

rowsandall.com didn’t send any data.
ERR_EMPTY_RESPONSE
Yes I know the data it does provide is valuable, but it is general info. IMO the real nuts and bolts will respect to performance enhancement is found in analyzing the individual stroke, identifying and correcting deficiencies within the stroke and then maintaining the improved stroke over the entire piece. Thats the way I look at it anyway. B)

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Re: Attention Data Nerds!

Post by gooseflight » November 4th, 2016, 10:19 am

gregsmith01748 wrote:I'll pass it along to Rick Terrell, the painsled dude.
Thanks Greg,

Without visiting the IT salvage heap I don't have access to a working ErgMonitor install. The way it worked was you set targets for stroke rate and ratio. I guess the calculation was based on determining the recovery time available from time per stroke minus drive time (real time). Recovery, again real time, was then shown as a 'progress bar'.

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Roy Walter
M55 | 185cm | 90kg | Journeyman Erger
PBs (2004): 6:38 (2K) | 5:22.9 (mile) | 17:39.6 (5K) | 8323 (30 mins) | 36:52 (10K) | 1:22:03 (HM '05)

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jackarabit
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Re: Attention Data Nerds!

Post by jackarabit » November 4th, 2016, 10:19 am

No access to server (Sander's) for 20 hrs for me after it loaded briefly yesterday afternoon. Is the graphing capability only available from rowsandall?
There are two types of people in this world: Those who can extrapolate from incomplete data

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Slacker
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Re: Attention Data Nerds!

Post by Slacker » November 4th, 2016, 10:58 am

I cannot access the site from my phone on my home wifi, but if I turn off wifi and switch to cellular data it pulls right up.
Ben
5' 11" 153 lbs

sander
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Re: Attention Data Nerds!

Post by sander » November 4th, 2016, 11:10 am

I did some of the coding for the site. :?

For those of you who get the error reported above, please use the following link:
http://rowsandall-1072.rostiapp.cz/

I have looked into it many times but my hosting providers claims the error is at the user's end.
I have no way to check that that is true or how to remedy this.

There are a few videos on how to use the site: http://rowsandall.com/rowers/videos

Also, any feedback is welcome! If you find bugs or want to ask for additional features, feel free to post here, but if you want to be sure I read it, please use the Issue List: https://bitbucket.org/sanderroosendaal/ ... all/issues or contact me through the contact form on the site, or through Twitter @rowsandall -

And thanks Greg for plugging the site.
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Training Blog: http://blog.rowsandall.com/
Free Data and Analysis. For Rowers. By Rowers: http://rowsandall.com

Tim K.
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Re: Attention Data Nerds!

Post by Tim K. » November 4th, 2016, 12:21 pm

There it is! :D

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jackarabit
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Re: Attention Data Nerds!

Post by jackarabit » November 4th, 2016, 2:16 pm

The "enhanced" addy loads the site for me. Thanks.
There are two types of people in this world: Those who can extrapolate from incomplete data

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sander
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Re: Attention Data Nerds!

Post by sander » November 4th, 2016, 3:32 pm

Here is a blog post that shows a few of the things that can be done:

http://blog.rowsandall.com/2016/11/04/t ... onranking/
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Training Blog: http://blog.rowsandall.com/
Free Data and Analysis. For Rowers. By Rowers: http://rowsandall.com

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jackarabit
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Re: Attention Data Nerds!

Post by jackarabit » November 4th, 2016, 4:44 pm

Excellent support of the combo of full EF WP and pre-test run of the test distance as proper TT prep!
There are two types of people in this world: Those who can extrapolate from incomplete data

M_77_5'-7"_156lb
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