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Dr Rothbart and JAPMA

Discussion in 'Biomechanics, Sports and Foot orthoses' started by davidh, Oct 27, 2006.

  1. davidh

    davidh Podiatry Arena Veteran


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    Hi everyone,

    Has anyone seen this yet?

    Rothbart BA 2006. Relationship of Functional Leg-Length Discrepancy to Abnormal Pronation. Journal American Podiatric Medical Association;96(6):499-507

    Comments?

    Regards,
    david
     
  2. Craig Payne

    Craig Payne Moderator

    Articles:
    8
    It has not actually been published yet - should be soon, but here's the abstract:
    Based on that limited information from the abstract, my big question is did the same person assess the foot posture and the functional LLD - if they did, then thats too much potential bias for the results to be taken too seriously.
     
    Last edited: Oct 27, 2006
  3. Admin2

    Admin2 Administrator Staff Member

  4. If it's not been published yet, how do you have access to the abstract?

    McNemar test doesn't measure correlation.
     
  5. Craig Payne

    Craig Payne Moderator

    Articles:
    8
    ;)
    I was going to give that point the benefit of the doubt until I actually seen how it was used.
     
  6. Brian A Rothbart

    Brian A Rothbart Active Member

    Func LLD

    Craig,

    Regarding the McNemar test not measuring correlation, you will have to argue that with the statistician at the Istituto Superiore di Sanita (the main research facility in Italy and associated with the NIH in the US), Dr C Giacomozzi, Dept of Biomedical Engineering. Dr Giacomozzi crunched all the numbers (deciding which test to run).

    Brian R
     
  7. Scorpio622

    Scorpio622 Active Member

    I have a pdf of this if anyone is interested. Send me your email address.

    Nick
     
  8. Brian A Rothbart

    Brian A Rothbart Active Member

    Craig,

    Excellent Point! In order to eliminate this possibility the following protocol was followed:
    (1) Three different measurements were taken on each subject: Foot pronation (using the FPI), length leg pattern, and hip position; however,
    only one measurement was taken per session, each measurement, one week apart. This meant that each subject was seen over a three week span to collect the three measurements.
    (2) During this time over 500 subjects were seen and measurements taken. This was done for several reasons: (1) Other research projects were simultaneously being done and (2) It eliminated the possiblity of researcher bias (impossible to remember which patient had which measurements).

    One researcher collected all the raw data; however, the above protocol almost completely eliminated the possibility of inadvertent bias in the collection of data.

    All the data collected was evaluated by an independent statistical team at the Istituto Superiore di Sanita in Rome Italy. Again, this was done to eliminate any possibility of bias in running the statistical tests.

    Brian R
     
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