Welcome to the Podiatry Arena forums

You are currently viewing our podiatry forum as a guest which gives you limited access to view all podiatry discussions and access our other features. By joining our free global community of Podiatrists and other interested foot health care professionals you will have access to post podiatry topics (answer and ask questions), communicate privately with other members, upload content, view attachments, receive a weekly email update of new discussions, access other special features. Registered users do not get displayed the advertisements in posted messages. Registration is fast, simple and absolutely free so please, join our global Podiatry community today!

  1. Have you considered the Clinical Biomechanics Boot Camp Online, for taking it to the next level? See here for more.
    Dismiss Notice
Dismiss Notice
Have you considered the Clinical Biomechanics Boot Camp Online, for taking it to the next level? See here for more.
Dismiss Notice
Have you liked us on Facebook to get our updates? Please do. Click here for our Facebook page.
Dismiss Notice
Do you get the weekly newsletter that Podiatry Arena sends out to update everybody? If not, click here to organise this.

Does medially deviated STJ axis mean significant supination resistance

Discussion in 'Biomechanics, Sports and Foot orthoses' started by markjohconley, Jun 11, 2007.

  1. markjohconley

    markjohconley Well-Known Member


    Members do not see these Ads. Sign Up.
    I thought that the more a STJ axis (transverse plane reflection) is laterally deviated the less the supination resistance perceived at the navicular. If so in what pathologies/anomalies would manifest with a laterally deviated STJ axis and a significant supination resistance? Or is it i need a lot more practice before i trust my judgement, any advice appreciated, mark c
     
  2. Craig Payne

    Craig Payne Moderator

    Articles:
    8
  3. markjohconley

    markjohconley Well-Known Member

    thanks craig , $1.46 all-blacks for the wc, i've invested
     
  4. Craig Payne

    Craig Payne Moderator

    Articles:
    8
    I'll take that, after thrashing France at the weekend:
    [​IMG]
     
  5. Mark:

    The more laterally deviated the subtalar joint (STJ) axis, the less will be the supination resistance force using the supination resistance test (Kirby KA, Green DR: Evaluation and Nonoperative Management of Pes Valgus, pp. 295-327, in DeValentine, S.(ed), Foot and Ankle Disorders in Children. Churchill-Livingstone, New York, 1992). Since feet with laterally deviated STJ axes will have more STJ supination moment from ground reaction force (GRF), then they will tend to have symptoms caused by these abnormal STJ moments, such as chronic inversion ankle sprains and peroneal tendinopathy. In addition, many individuals with more significant laterally deviated STJ axis feet use the peroneal muscles tonically during simple relaxed bipedal stance to increase the STJ pronation moment just so these individuals can keep the forefoot plantigrade (i.e. keep the forefoot on the ground so that the foot is not supinating onto the lateral forefoot only). Because of this relatively common peroneal activation in these individuals, it may be more to difficult supinate their feet using the supination resistance test due to the concomitant peroneal contractile activity. Sometimes, by having the patient first supinate and pronate the foot fully before the test and then watching for peroneal tendon tension from posterior during the test, a more reliable supination resistance test can be achieved in these individuals.
     
  6. DaVinci

    DaVinci Well-Known Member

    Paynie - big difference to the last time they supported the All Blacks:

    [​IMG]

    Go Wallabies! They thrashed Fiji. Bring on the World Cup.
     
  7. markjohconley

    markjohconley Well-Known Member

    Thankyou Kevin, excellent

    (and gorgeous little AUSSIE you've got there Mr Payne)
     
Loading...

Share This Page