The non - answermikvan52 wrote:
A study in proportionality
Answering the question:
Is the spi directly proportional to pace? ( Note : This concept includes watt production!)
Given:
200 watts/20 strokes per minute effort = 10 spi
Will the same percentage changes: faster pace and higher spi give you the same spi?
For instance: If you drop the pace of (200watts) 2:00.51 /500m ten precent what do you get?
2:00.51 is 120.51 seconds
90 % of 120.51 is 108.01 sec or 1:48.01
To get direct proportionality, RAISE the rate ten percent too.. from 20 to 22.
What is the spi? If these magnitudes are directly proportional the spi should remain the same AND REMAIN AT 10…
BUT (!) (1:48 PACE) 278 WATTS / 22 SPM IS A SPI OF 12.6.. (not 10)
This makes spi a useless measure unless you are only referring to one pace (wattage).
Newcomers to this thread often do not realize this.
Why are you afraid to answer the question?ranger wrote:
Give or take a bit, my SPI/technique is a constant.
Rate, pace, and HR are measures of effort, not SPI.
By and large, SPI/technique is a measure of how good/fast you are, given your age and weight.
Give or take a bit, everyone the same age and weight rows a 2K at the same rate.
The rower with the more powerful (i.e., effective and efficient) stroke wins.
You say rate is a measure of effort? Since when?
For you power is defined as what is effective and efficient but at the same time power/rate = spi
Very confusing to anyone! What do efficiency and effectiveness have to do with watts?
Watt output is power, plain and simple
Now on to rate: rate does not measure effort as you say!
Look at the rate at which kids can go up and down an erg slide w/o much effort at all.
Anyone can shorten his stroke and not do much work at all... IOW less effort.
And
Don't drag technique in to this discussion. It's not quantifiable. SPI is clearly quantifiable by definition. You say rowing well is a SPI figure. And you consider it numeric value.
it is not "rhythmic" or "Poetic"... it has no inherent beauty. It's a blend of magnitudes w/o reason.
Once again:
In the second line of your reply you say that pace is no part of spi. One cannot have spi without watt production. Watt production defines pace. You are just being obstinate and illogical in your responses>
Races are won by have the highest average power (wattage) output this is "how good/fast you are". Stroke rate does not affect the outcome.
With in reason of course. Look at the example where one person ergs at 39spm and the other ergs at 30 spm. Now, what if the first has the higher wattage, the first one wins... That is all. He is better; he is faster plain and simple.
Your Statement: "Give or take a bit, everyone the same age and weight rows a 2K at the same rate." is simply not true.
You are either seeking attention by lying or being an imbecile.... oops, probably both.
look at this video for example: there is substantial variation among cohorts
Your own spi is not a constant (as you just claimed). BIRC showed that.. you erged below an 11 maybe even below a 9.
'Running out of gas' does not explain the discrepancy between 13 and 9.
You know, Rich, it's of little consequence to point out that you are truly a fake and just mess around with your responses to get attention (I suppose). I should let it go. I once thought you might catch me OTW but now I know you will never do so. Over the last 5 years you could have made improvements in rowing. Instead, you have done no such thing. Seems to me that you are afraid to step up to the plate. You erg well infrequently but you cannot row worth a lick.
In the end:
It might be necessary for someone to point out the mendacity of your feeble attempts at fabricating some sort of logical explanation for all things rowing... That is all this thread is good for. ... to point out ranger errors and pitfalls.
I am tired of it for now.