Road Cycling · Public discussion

Pointless ITT analysis

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Road Cycling
Published
21 September 2007
Last activity
23 September 2007
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  1. Hi All,

    Here are 2 graphs showing speed and HR for two cyclists on a 10km TT
    on regular road bikes. The out and back course is more or less flat.
    The turn around is higher than the start/finish.

    http://arbitrary.org/tt_1.gif

    http://arbitrary.org/tt_2.jpg

    What can be deduced about the riders based on this info alone?

    Joseph

  2. Quoted message said:

    Hi All,

    Here are 2 graphs showing speed and HR for two cyclists on a 10km TT
    on regular road bikes. The out and back course is more or less flat.
    The turn around is higher than the start/finish.

    http://arbitrary.org/tt_1.gif

    http://arbitrary.org/tt_2.jpg

    What can be deduced about the riders based on this info alone?

    Joseph

    Rider 2 is heavier?

    Dan

  3. Dan Connelly said:
    Quoted message said:

    Hi All,

    Here are 2 graphs showing speed and HR for two cyclists on a 10km TT
    on regular road bikes. The out and back course is more or less flat.
    The turn around is higher than the start/finish.

    http://arbitrary.org/tt_1.gif

    http://arbitrary.org/tt_2.jpg

    What can be deduced about the riders based on this info alone?

    Joseph

    Rider 2 is heavier?

    Dan

    Heart rate at the end of a 10km max effort is sometimes cited as a good
    estimate of MHR. The two riders would therefore have close to the same
    MHR as each other.

  4. Quoted message said:

    Hi All,

    Here are 2 graphs showing speed and HR for two cyclists on a 10km TT
    on regular road bikes. The out and back course is more or less flat.
    The turn around is higher than the start/finish.

    http://arbitrary.org/tt_1.gif

    http://arbitrary.org/tt_2.jpg

    What can be deduced about the riders based on this info alone?

    Dumbass,
    The students here are all dumbasses and can only answer multiple
    choice questions. Please rephrase.

  5. On Sep 21, 11:39 am, Dan Connelly <d_j_c_o_n_n_e_l@y_a_h_o_o_._c_o_m>

    Quoted message said:
    Quoted message said:

    What can be deduced about the riders based on this info alone?

    Rider 2 is heavier?

    Taller, too.

  6. In article <[email hidden]>,

    Quoted post said:

    Hi All,

    Here are 2 graphs showing speed and HR for two cyclists on a 10km TT
    on regular road bikes. The out and back course is more or less flat.
    The turn around is higher than the start/finish.

    http://arbitrary.org/tt_1.gif

    http://arbitrary.org/tt_2.jpg

    What can be deduced about the riders based on this info alone?

    Joseph

    Rider 2 had to buy the post-race beers, but probably doesn't care
    because he didn't have to use frigging Windows to graph his Polar data.

    Rider 2 has eccentrically chosen to use HR gridlines spaced at 6.5 bpm
    intervals. What, is that a conversion from Imperial heartbeats?

    --
    Ryan Cousineau [email hidden] http://www.wiredcola.com/
    "I don't want kids who are thinking about going into mathematics
    to think that they have to take drugs to succeed." -Paul Erdos

  7. Quoted message said:

    On Sep 21, 11:39 am, Dan Connelly <d_j_c_o_n_n_e_l@y_a_h_o_o_._c_o_m>

    Quoted message said:
    Quoted message said:

    What can be deduced about the riders based on this info alone?

    Quoted message said:

    Rider 2 is heavier?

    Taller, too.

    What makes you say that?

    Joseph

  8. joseph.santaniello said:
    rechung said:

    Dan Connelly wrote:

    Quoted message said:
    Quoted message said:

    > What can be deduced about the riders based on this info alone?

    Quoted message said:
    Quoted message said:

    Rider 2 is heavier?

    Quoted message said:

    Taller, too.

    What makes you say that?

    As Dan pointed out, outbound-inbound difference suggests rider 2 is
    heavier. However, higher inbound speed also suggests better watts/
    meter^2, which scales less than linearly with height.

  9. Quoted message said:

    On Sep 21, 11:39 am, Dan Connelly <d_j_c_o_n_n_e_l@y_a_h_o_o_._c_o_m>

    Quoted message said:
    Quoted message said:

    What can be deduced about the riders based on this info alone?

    Quoted message said:

    Rider 2 is heavier?

    Taller, too.

    Rider 1 is faster.

    Ben
    RBR Data Mining Specialist

  10. Ryan Cousineau said:

    In article <[email hidden]>,

    Quoted message said:
    Quoted message said:

    http://arbitrary.org/tt_1.gif

    http://arbitrary.org/tt_2.jpg

    What can be deduced about the riders based on this info alone?

    Joseph

    Rider 2 had to buy the post-race beers, but probably doesn't care
    because he didn't have to use frigging Windows to graph his Polar data.

    Rider 2 has eccentrically chosen to use HR gridlines spaced at 6.5 bpm
    intervals. What, is that a conversion from Imperial heartbeats?

    Rider 2 also exhibits poor judgment in encoding plots using JPEG. I wouldn't trust him.

    Dan

  11. On Sep 23, 3:22 am, Dan Connelly <d_j_c_o_n_n_e_l@y_a_h_o_o_._c_o_m>

    Quoted message said:
    Ryan Cousineau said:

    In article <[email hidden]>,

    Quoted message said:

    http://arbitrary.org/tt_1.gif

    Quoted message said:
    Quoted message said:

    http://arbitrary.org/tt_2.jpg

    Quoted message said:
    Quoted message said:

    What can be deduced about the riders based on this info alone?

    Quoted message said:
    Quoted message said:

    Joseph

    Quoted message said:

    Rider 2 had to buy the post-race beers, but probably doesn't care
    because he didn't have to use frigging Windows to graph his Polar data.

    Quoted message said:

    Rider 2 has eccentrically chosen to use HR gridlines spaced at 6.5 bpm
    intervals. What, is that a conversion from Imperial heartbeats?

    Rider 2 also exhibits poor judgment in encoding plots using JPEG. I wouldn't trust him.

    Dan

    I think you guys are on to something here! ;-)

    Joseph

  12. "[email hidden]" <[email hidden]> wrote in
    news:[email hidden]:

    Quoted message said:
    Quoted message said:

    On Sep 21, 11:39 am, Dan Connelly <d_j_c_o_n_n_e_l@y_a_h_o_o_._c_o_m>

    Quoted message said:

    > What can be deduced about the riders based on this info alone?

    Quoted message said:

    Rider 2 is heavier?

    Taller, too.

    Rider 1 is faster.

    So then Rider 1 is the doper?

    --
    Bill Asher

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