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Moment arms about the ankle joint

Discussion in 'Biomechanics, Sports and Foot orthoses' started by NewsBot, Apr 12, 2011.

  1. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1

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    Moment Arms of the Ankle Throughout the Range of Motion in Three Planes
    McCullough MB, Ringleb SI, Arai K, Kitaoka HB, Kaufman KR
    Foot Ankle Int. 2011 Mar;32(3):300-306
     
  2. efuller

    efuller MVP

    Anyone have a copy of the paper? It would support my contention, in the anterior tibial thread, that the posterior tibial tendon has very very little moment arm at the ankle joint.

    Eric
     
  3. davsur08

    davsur08 Active Member

    Dr.Fuller

    as you requested

    Regards

    David
     

    Attached Files:

  4. Petcu Daniel

    Petcu Daniel Active Member

    Hello,
    Which are the relevance of this study from the perspective of subtalar joint rotational equilibrium as in the rotation axis considered were medial-lateral, anterior-posterior and inferior-superior ?
    Thanks,
    Daniel
     
  5. efuller

    efuller MVP

    The subtalar joint has the least amount of motion in the sagittal plane. The average inclination of the axis will have approximately equal amounts of motion in the transverse and frontal planes. If you look at the graphs of moment arm for the Achilles tendon, you can see that it had a very small moment arm in the coronal (transverse) and the frontal planes and a very large moment arm in the sagittal plane. This is consistent with what we thought before that the Achilles is primarily and ankle plantar flexor and can have a variable effect at the STJ.

    The graphs also show that the post tib also has the smallest lever arm of any muscle in the sagittal plane, so it would be a very poor plantar flexor of the ankle. That fact was relevant in a different thread that I wish I could remember the name of.

    Eric
     
  6. I think it is this one - How significant is the Peroneus longus as a Plantarflexor of the 1st Ray?
     
  7. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Achilles tendon moment arms: The importance of measuring at constant tendon load when using the tendon excursion method
    Katarzyna Olszewski, Taylor J.M. Dick, James M. Wakeling
    Jnl Biomech; Article in Press
     
  8. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Comparison of the Achilles tendon moment arms determined using the tendon excursion and three‐dimensional methods
    Satoru Hashizume, Atsuki Fukutani, Kazuki Kusumoto, Toshiyuki Kurihara, Toshio Yanagiya
    Physiological Reports Published 5 October 2016 Vol. 4 no. e12967 DOI: 10.14814/phy2.12967
     
  9. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Reliability of Achilles Tendon Moment Arm Measured In Vivo Using Freehand Three-Dimensional Ultrasound
    Steven J. Obst et al
    Journal of Applied Biomechanics; Ahead of Print
     
  10. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Variation in the human Achilles tendon moment arm during walking.
    Rasske K, Thelen DG, Franz JR.
    Comput Methods Biomech Biomed Engin. 2017 Feb;20(2):201-205
     
  11. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    A simple but reliable method for measuring 3D Achilles tendon moment arm geometry from a single, static magnetic resonance scan
    C.F. Alexander et al
    Journal of Biomechanics; February 16, 2017
     
  12. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Achilles tendon moment arm length is smaller in children with cerebral palsy than in typically developing children.
    Kalkman BM et al
    J Biomech. 2017 Mar 3. pii: S0021-9290(17)30128-8. doi: 10.1016/j.jbiomech.2017.02.027
     
  13. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Musculoskeletal modelling of human ankle complex: Estimation of ankle joint moments
    Prashant K. Jamwal et al
    Clinical Biomechanics; Article in Press
     
  14. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Relationship between Achilles tendon length and running performance in well-trained male endurance runners
    Hiromasa Ueno, et al
    Scandinavian Journal of Medicine & Science in Sports; 28 June 2017
     
  15. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Estimates of Achilles Tendon Moment Arm Length at Different Ankle Joint Angles: Effect of Passive Moment
    Jared R. Fletcher, Brian R. MacIntosh
    Journal of Applied Biomechanics; Ahead of print
     
  16. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    The geometrical axis of the talocrural joint suggestions for a new measurement of the talocrural joint axis
    Leif Claassen et al
    FAS; Article in Press
     
  17. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Aging effects on the Achilles tendon moment arm during walking.
    Rasske K, Franz JR
    J Biomech. 2018 Jun 18.
     
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