TSS calclation

Discussion in 'Power Training' started by jetnjeff, Jun 1, 2006.

  1. jetnjeff

    jetnjeff New Member

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    I was putting number to the TSS formula from the Training and Racing with a Power Meter book. But I get a 1.xx number I seem to be off a factor of 100.

    Formula
    TSS=(s * W * IF)/(FTP * 3600)

    s=duration in seconds
    W=Normlized power
    IF=Itensity factor
    3600 seconds = 1 hour

    The numbers I used were one hour at 221(this atheletes FTP) at a TT IF of 1.0. I was expecting 100, but notice that number would cancel out to 1.00

    (3600*221*1.00)/(221*3600) = 1.00

    I tried to find an expaination in the TSS section of the book. I briefly had time and did not find anything. Is the Factor of 100 just suposed to be understood or am I missing something?

    Jeff
     
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  2. RapDaddyo

    RapDaddyo Active Member

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  3. jetnjeff

    jetnjeff New Member

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  4. Alex Simmons

    Alex Simmons Member

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    IIRC, Andy has previously acknowledged this as an error in the book to be corrected in any future edition.

    In summary: TSS = IF x #hrs x 100
     
  5. sugaken

    sugaken New Member

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    No, no, it's actually TSS = IF^2 * t(hrs) * 100.
     
  6. Alex Simmons

    Alex Simmons Member

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    Oops, yep sorry I missed the square.:eek:
     
  7. dkxkvtr

    dkxkvtr New Member

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    Your mothers off by 100 :)...guess who?



     
  8. jetnjeff

    jetnjeff New Member

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    I tried searcing the forum for TSS, but the search engine did not like the string and said:
    "Sorry - no matches. Please try some different terms.
    The following words are either very common, too long, or too short and were not included in your search : TSS"

    So I thought I would ask Thanks again.
    Not in the book either.

    The link Rapdaddyo suplied dose not mention Squaring the IF either?

    High Barry.
     
  9. Alex Simmons

    Alex Simmons Member

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