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PostPosted: Mon Jul 02, 2012 7:48 pm 
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Joined: Mon Oct 31, 2005 4:22 pm
Posts: 47
Location: TR
I did a 6 hour training on a stationary bike in a test lab today but really wondering how many kilometers does my effort equal to.

Here are my infos;

Duration Avg Power Avg Cadence
1.5h - 180 watt - 120 rpm
10min break
1.5h - 220 watt - 110 rpm
15min break
1.5h - 180 - 100 watt - 110 rpm
30min break
1.5h - 100 - 120 - 200 watt - 105 rpm


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Posted: Mon Jul 02, 2012 7:48 pm 


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PostPosted: Mon Jul 02, 2012 8:36 pm 
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173 km.


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PostPosted: Mon Jul 02, 2012 8:45 pm 
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Rick wrote:
173 km.


Thanks Rick, and will you please share me how you calculated it?
I mean the formula or the website, then I'll be able to get the answers by myself next time.


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PostPosted: Mon Jul 02, 2012 8:54 pm 
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Not enough info

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Do you suffer more when you train, or cannot train?


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PostPosted: Mon Jul 02, 2012 9:05 pm 
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Try this:

http://bikecalculator.com/

There is also some interesting stuff that you can do with the different calculators on cycling power models.

http://www.cyclingpowermodels.com/Power ... arios.aspx" onclick="window.open(this.href);return false;

I love this site; it has so many cool features that you can play with and some well written articles :thumbup:

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PostPosted: Mon Jul 02, 2012 9:43 pm 
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athletic wrote:
Rick wrote:
173 km.


Thanks Rick, and will you please share me how you calculated it?
I mean the formula or the website, then I'll be able to get the answers by myself next time.

It was just an estimate. I assumed no wind.


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PostPosted: Mon Jul 02, 2012 11:06 pm 
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More importantly, why does it matter?

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PostPosted: Mon Jul 02, 2012 11:18 pm 
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It's impossible without your power at every second. The reason is that if you put out 2000w in the first second and 1w in the next, you won't be going 2000x slower due to air-resistance.

So if your variance is low (you rode at constant wattage) then it is possible to calculate. However if your power variance is high (loads of sprints followed by warmdowns) then any distance calculations won't be very accurate.

But as Tapeworm asks... what's the point?


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PostPosted: Tue Jul 03, 2012 12:25 am 
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you deserve a medal for going 6 hours on a stationary bike. you must be mental


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PostPosted: Tue Jul 03, 2012 7:50 pm 
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Location: TR
I'll have a day/distance record attempt by road bike here ( 500k in one day, from Istanbul city to Izmir city, under 40C degree and humid weather) on 14th of July and to be able to monitor myself + plan things during my attempt before (like a rehearsal) I rode on a stationary bike in a test lab.

Knowing also the distance would be nice because I dont work/train by power output.

My progression on stationary bike was like this;

In the first 1.5 hour incl. warm up;
75-80-85-90-95-100-110-120-130-140-150-160-170-180 watt

2nd 1.5 hour;
in the first 5-10min, 180-190-200-210 watt, then constantly 220 watt

3rd 1.5 hour;
1st 10 min 180 watt - cramp - 130 watt - cramp - 100 watt

4th 1.5 hour;
100 - 120 watt - then in the last 10 minute 220 watt

No slowing wind, only in some periods I used the ventilator machine to keep myself cool and dry.


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PostPosted: Wed Jul 04, 2012 8:01 am 
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Rick, I can't tell if you're serious or just trolling

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PostPosted: Wed Jul 04, 2012 8:36 am 
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Thanks Rick.

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PostPosted: Mon Jul 09, 2012 2:28 pm 
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I have been away from the computer for a few days, so I couldn't respond.
Most of my estimate was taken from estimating an average value for all the parameters in these equations:
Image






...and it is not called "trolling"; it is called "having a sense of humor"


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PostPosted: Tue Jul 10, 2012 6:18 pm 
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Subtle. Although I don't think the OP picked up on the humour either.

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Do you suffer more when you train, or cannot train?


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Posted: Tue Jul 10, 2012 6:18 pm 


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PostPosted: Tue Aug 21, 2012 10:37 am 
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Location: Near Horgen, Switzerland
Surely the right answer is to get a power meter or borrow one and see how fast you go at 150w etc. Then calc accordingly.


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