Interesting power meter article

Discussion in 'Power Training' started by rek, Jun 22, 2003.

  1. rek

    rek New Member

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  2. ric_stern/RST

    ric_stern/RST New Member

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    i can't recall what Kraig's conclusion what on his threeway study of the meters. however, there's a recent study that's just appeared in a scientific peer reviewed journal -- i'll post the abstract when i can get hold of it!

    Ric
     
  3. WebTrainer

    WebTrainer New Member

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    Ric, is the article already there? I like to read it.
    Thanks a lot in advance.

    www.webtrainer.nl
     
  4. ric_stern/RST

    ric_stern/RST New Member

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  5. WebTrainer

    WebTrainer New Member

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  6. ric_stern/RST

    ric_stern/RST New Member

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    Lol! sorry! was there an article you thought i meant?

    cheers
    ric
     
  7. Foothills Rider

    Foothills Rider New Member

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    Thanks for the great links.

    I know that the HAC4 differs from the power meters as it (HAC4) calculates power rather than measure it. That being said, do you know of any objective studies such as those mentioned here, which show side-by-side comparison of the HAC4 with the power meters?

    Many thanks.

    Bill
     
  8. Smartt/RST

    Smartt/RST New Member

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    There is this:
    http://mywebpage.netscape.com/rechung/wattage/altimeter/pseudohac4.html
     
  9. kennf

    kennf New Member

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    Interesting how well the PT holds up against the SRM. As cool looking as the SRM Dura Ace crank is, I can't see spending that kind of money when the PT data quality appears to be just as good.

    I was also surprised that the Polar unit works at all (albeit with many anomalies), since the method of measuring seems so quirky.
     
  10. Steve McGregor

    Steve McGregor New Member

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    Or better. Data from the AIS indicate that PTs are more consistently accurate between devices than SRMs.

    Steve
     
  11. Foothills Rider

    Foothills Rider New Member

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    Thanks, Michael. That's great...and it shows that trying to measure absolute values with 20-s readings mutes both highs and lows, but that even with the caveats, the data are not un-usable.

    I appreciate the time and effort it took you to find the link...and accept my wishes for a safe and happy holiday season.

    Bill
     
  12. ric_stern/RST

    ric_stern/RST New Member

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    Not only does the PT hold up against the SRM (Pro) it's possibly slightly more accurate than the SRM. A recent paper examining the SRM and the PT in Med Sci Sport and Exercise, showed that SRM came from the factory in a range of accuracies of - 10% to +1% while PTs were -2 to 2.9%. (you would expect a PT to report less power than an SRM due to the fact the PT is measuring further down the system and power is lost in the drive train of ~ 2%).

    There are some benefits to the SRM (compared to the PT) e.g., user can alter the calibration of SRM and you can race with any wheels, but by and large i prefer the PT

    Ric (owns or has used all the commercially available power meters)
     
  13. ric_stern/RST

    ric_stern/RST New Member

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    Damn you Steve!!! :p -- you posted while i was writing my reply!
     
  14. Steve McGregor

    Steve McGregor New Member

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    Here is a link to the article. The statement I make though, is based on data included in the text of the article, that is not in the abstract.

    http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15235334

    They are both good power meters (SRM and PT), but for the money, and the lack of hassle, you can't beat the PT standard or pro.

    Steve
     
  15. ric_stern/RST

    ric_stern/RST New Member

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  16. ric_stern/RST

    ric_stern/RST New Member

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  17. Steve McGregor

    Steve McGregor New Member

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    I've been training with Lindsay from Wattage. He's a great speed posting training partner;)

    Happy Holidays Ric
     
  18. Steve McGregor

    Steve McGregor New Member

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    I guess you could say,"Great minds think alike,... sometimes";)
     
  19. ric_stern/RST

    ric_stern/RST New Member

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    all the best for the holidays
     
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