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Functional ankle instability

Discussion in 'Biomechanics, Sports and Foot orthoses' started by NewsBot, Aug 18, 2008.

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  1. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Effect of a 2-Week Joint Mobilization Intervention on Single-Limb Balance and Ankle Arthrokinematics in Those With Chronic Ankle Instability
    Matthew C. Hoch, David R. Mullineaux, Richard D. Andreatta, Robert A. English, Jennifer M. Medina-McKeon, Carl G. Mattacola, and Patrick O. McKeon
    Journal of Sports Rehabilitation (in press)
     
  2. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Changes in balancing ability of athletes with chronic ankle instability after foot orthotics application and rehabilitation exercises.
    Lee HJ, Lim KB, Jung TH, Kim DY, Park KR.
    Ann Rehabil Med. 2013 Aug;37(4):523-33.
     
  3. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Effectiveness of Ankle Taping on Ankle Joint Kinematics During Walking on Level Ground
    Mohamed-Amine Choukou, Samia Hijazi
    Foot Ankle Spec October 2013 vol. 6 no. 5 352-355
     
  4. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    New method of diagnosis for chronic ankle instability: comparison of manual anterior drawer test, stress radiography and stress ultrasound.
    Lee KT, Park YU, Jegal H, Park JW, Choi JP, Kim JS.
    Knee Surg Sports Traumatol Arthrosc. 2013 Sep 26.
     
  5. blinda

    blinda MVP

  6. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    The Effectiveness of Foot Orthotics on Improving Postural Control in Individuals With Chronic Ankle Instability: A Critically Appraised Topic
    Michael L. Gabriner, Brittany A. Braun, Megan N. Houston, and Matthew C. Hoch
    Jnl Sports Rehab (in press)
     
  7. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Prevalence of Chronic Ankle Instability in High School and Division I Athletes
    Leah Tanen et al
    Foot Ankle Spec November 27, 2013
     
  8. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    In Vivo Kinematics of the Talocrural and Subtalar Joints During Weightbearing Ankle Rotation in Chronic Ankle Instability
    Takumi Kobayashi
    Foot Ankle Spec December 10, 2013
     
  9. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Effects of fatiguing treadmill running on sensorimotor control in athletes with and without functional ankle instability.
    Steib S, Hentschke C, Welsch G, Pfeifer K, Zech A.
    Clin Biomech (Bristol, Avon). 2013 Aug;28(7):790-5. doi: 10.1016/j.clinbiomech.2013.07.009.
     
  10. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    In Vivo Kinematics of the Talocrural and Subtalar Joints During Weightbearing Ankle Rotation in Chronic Ankle Instability.
    Kobayashi T, Saka M, Suzuki E, Yamazaki N, Suzukawa M, Akaike A, Shimizu K, Gamada K.
    Foot Ankle Spec. 2013 Dec 10.
     
  11. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Postural-Stability Tests That Identify Individuals with Chronic Ankle Instability.
    Linens SW, Ross SE, Arnold BL, Gayle R, Pidcoe P.
    J Athl Train. 2013 Dec 30
     
  12. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Impact of Fibular Torsion and Rotation on Chronic Ankle Instability
    Murat Bozkurt, Nihal Apaydin, Ergin Tonuk, Cetin Isik, Nurdan Cay, Gulbiz Kartal, Halil Ibrahim Acar, Shane R. Tubbs
    Foot and Ankle Surgery; Available online 30 January 2014
     
  13. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
  14. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Predictors of chronic ankle instability after an index lateral ankle sprain: A systematic review.
    Pourkazemi F, Hiller CE, Raymond J, Nightingale EJ, Refshauge KM.
    J Sci Med Sport. 2014 Feb 6.
     
  15. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    MULTI-SEGMENTED FOOT LANDING KINEMATICS IN SUBJECTS WITH CHRONIC ANKLE INSTABILITY
    R De Ridder, T Willems, J Vanrenterghem, M Robinson, T Palmans, P Roosen
    Br J Sports Med 2014;48:584 doi:10.1136/bjsports-2014-093494.66
    Abstracts from the IOC World Conference on Prevention of Injury & Illness in Sport, Monaco 2014
     
  16. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Systematic review of chronic ankle instability in children
    Melissa Mandarakas, Fereshteh Pourkazemi, Amy Sman, Joshua Burns and Claire E Hiller
    Journal of Foot and Ankle Research 2014, 7:21 doi:10.1186/1757-1146-7-21
     
  17. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    The Influence of Ankle Dorsiflexion and Self-Reported Patient Outcomes on Dynamic Postural Control in Participants with Chronic Ankle Instability
    Masafumi Terada, Matthew S. Harkey, Ashley M. Wells, Brian G. Pietrosimone, Phillip A. Gribble
    Gait & Posture; Available online 3 April 2014
     
  18. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    The influence of ankle dorsiflexion and self-reported patient outcomes on dynamic postural control in participants with chronic ankle instability
    Masafumi Teradaemail address, Matthew S. Harkey, Ashley M. Wells, Brian G. Pietrosimone, Phillip A. Gribble
    Gait & Posture; Article in Press
     
  19. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    The effects of mobilization with movement on dorsiflexion range of motion, dynamic balance, and self-reported function in individuals with chronic ankle instability.
    Gilbreath JP, Gaven SL, Van Lunen L, Hoch MC.
    Man Ther. 2014 Apr;19(2):152-7.
     
  20. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Lateral ankle and hindfoot instability: A new clinical based classification
    F.G. Usuelli et al
    Foot and Ankle Surgery
     
  21. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Gait Kinematics After Taping in Participants with Chronic Ankle Instability.
    Chinn L, Dicharry J, Hart JM, Saliba S, Wilder R, Hertel J.
    J Athl Train. 2014 May 19.
     
  22. Chris Gracey

    Chris Gracey Active Member

    A compendium for a foundation. Thank you.
     
  23. Chris: "Horsepower is how fast you hit the wall, Torque is how far you move it."

    Please explain your motto above. I don't understand it. Is it a joke? Because from a physics standpoint, it doesn't make sense.
     
  24. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
  25. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Difference in Postural Control Between Patients With Functional and Mechanical Ankle Instability
    Henry Chen, Hong-Yun Li, Jian Zhang, Ying-Hui Hua, Shi-Yi Chen
    Foot & Ankle International June 18, 2014
     
  26. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    All-inside arthroscopic modified Broström operation for chronic ankle instability: a biomechanical study.
    Lee KT, Kim ES, Kim YH, Ryu JS, Rhyu IJ, Lee YK.
    Knee Surg Sports Traumatol Arthrosc. 2014 Jul 5
     
  27. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    The effect of kinesio tape on force sense in people with functional ankle instability.
    Simon J, Garcia W, Docherty CL.
    Clin J Sport Med. 2014 Jul;24(4):289-94
     
  28. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    The Postural Control Characteristics of Individuals with and without a History of Ankle Sprain during Single-leg Standing: Relationship between Center of Pressure and Acceleration of the Head and Foot Parameters.
    Abe Y, Sugaya T, Sakamoto M2.
    J Phys Ther Sci. 2014 Jun;26(6):885-8.
     
  29. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    The Effects of a Semi-Rigid Brace or Taping on Talocrural and Subtalar Kinematics in Chronic Ankle Instability
    Takumi Kobayashi, PhD, PT; Masayuki Saka, MSc, PT; Eiichi Suzuki, MD; Naohito Yamazaki, RT; Makoto Suzukawa, MSc, PT; Atsushi Akaike, MD; Kuniaki Shimizu, MD; Kazuyoshi Gamada, PhD, PT
    Foot Ankle Spec July 21, 2014
     
  30. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    A Large-scale Study on Epidemiology and Risk Factors for Chronic Ankle Instability in Young Adults
    Oded Hershkovich, MD, MHA, Shay Tenenbaum, MDemail, Barak Gordon, MD, MHA, Nathan Bruck, MD, Ran Thein, MD, Estela Derazne, MSc, Dorit Tzur, MBA, Ari Shamiss, MD, MPA, Arnon Afek, MD, MHA
    The Journal of Foot and Ankle Surgery; Articles in Press
     
  31. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Effects of joint mobilization on chronic ankle instability: a randomized controlled trial.
    Cruz-Díaz D1, Lomas Vega R, Osuna-Pérez MC, Hita-Contreras F, Martínez-Amat A.
    Disabil Rehabil. 2014 Jul 3:1-10.
     
  32. Chris Gracey

    Chris Gracey Active Member

    Kevin, I'm a gear-head for cars and a greasemonkey for feet so not much I do makes sense. Power is related to speed, torque (ft/lb) is the turning force about an axis. Singularly in the physical sense, they have nothing to do with each other but in the context of a machine that uses one to produce the other, such as the engine in a motor vehicle, they together relate to the action produced quite nicely. Tq=F x Radius; P(ower)=Tq x V(elocity); Horespower = (Tq * RPM)/5252... My '72 Chevelle SS454 pumps out 390ft/lbs at 6000rpm for 406HP and can reach speeds over 150mph. Funny how this engine, for all it's power, would fail miserably at moving a wall isn't it? :bash: Smack it awful fast tho because of it's top-end speed. It is equally interesting that a big tractor trailer rig can produce roughly 1000ft/lbs of torque at only 1500rpm and only have about the same horsepower as a Honda Ody minivan(260hp). Yet, the big rig can pull a 70,000lb payload! It might go slow, but the trailer would definitely move the wall because of it's high torque.

    How would you predict the torque about the STJAxis for a given ht/wt of a client? Would it matter?
     
  33. Chris Gracey

    Chris Gracey Active Member

    I mean to say: Would it matter in the presence of ankle instability? Speed, torque, mass...could there be a measurable way to predict injury with this approach?
     
  34. So, Chris, the truck or Honda or motorcycle, no matter what it's mass is, would move a wall, no matter what it's mass is, a certain distance that is only dependent on it's torque? I don't think so, Chris.

    How much do you think your big rig hauling a 70,000 lb payload would move a wall that has a mass equivalent to, let's say, the Hoover Dam when it smashes into it at....let's say....100 MPH, Chris? I actually think my bicycle, with very little torque from my legs, moving at 20 MPH would move a wall made of cardboard much more than your 70,000 pound payload big rig smashing into the Hoover Dam at 100 MPH.

    Time to rethink you motto, Chris, since it neither accurate nor makes sense from a physics standpoint. You may want to review your high school physics book or, instead, read this link:

    http://en.wikipedia.org/wiki/Momentum
     
  35. efuller

    efuller MVP

    Or at least put your motto in a smaller font. Then it would only say I have a confused motto, rather than yelling it.
    Eric
     
  36. Or, if you are going to yelling it, as Chris is currently doing, at least be accurate so that people actually can see you know what you are yelling about:

    Horsepower is the rate at which work is done by a vehicle engine, Torque is the turning force, or moment of force, of the vehicle engine. Neither horsepower nor torque, by themselves, determines either how fast you hit the wall, nor how far you move it.
     
  37. Chris Gracey

    Chris Gracey Active Member

    A lovely metaphor for life indeed, Kevin. It was wrong of me to assume that the type of vehicle could imply it's mass or trust that the material construction of a wall could be inferred for the sake of argument. Perhaps it was wrong to assume that quantum theory might regard my false statement as true. Or that you actually thought of it as the metaphor for life it really is. Either way, I did assume correctly that you were baiting me into an argument I did not start nor care to continue. You weren't trying to teach and simply add to or redirect the discussion, you were trying to hurt because you made it personal. Perhaps you are bored. Or a bully. Or both. I believe I agreed with you that, by themselves, torque and horsepower are not alone responsible for moving walls. It was one of the first things mentioned. But I see the philosophical paradigm of a proactive life imitating crashing vehicles escapes you. So watch the speed at which I return to my glorious anonymity and know you were the power that took me there. But it will take a great deal more torque to pry me away from your special approach to foot and ankle biomechanics. That you have positively helped shape me as a clinician is no secret. I endeavor to learn and apply all I can from you and will continue to do so many many many many many years after you are dead.
     
  38. Chris:

    My initial question was this:

    To which you replied:

    If you had, instead of the reply above, which made no mention of the physics concepts which determines how much an object is moved or not by a colliding object, that this was a joke or was a metaphor for life then I wouldn't have ever taken the time to comment.

    For nearly 10 years here on Podiatry Arena I have tried to teach physics and biomechanics concepts for the education of the international podiatry and foot-health community. Sometimes, teaching on this forum means disagreeing with others and sometimes this means offending others. So be it.

    In the end, when I am dead, as you say, I will have cared more about spending my life educating podiatrists and other foot-health professionals than I care about being their friends. Since your slogan did not follow the known laws of physics, since it was being "yelled" on every post you made in very large letters, and since I felt that your slogan may have actually been thought to be true by some following along here on Podiatry Arena, that is why I asked if it was a joke or something else. Call me a bully, call me bored, maybe that is what I am. I really could care less.

    The sole point of my question and comments was to teach more physics and biomechanics to those following along. Nothing more, nothing less.

    Sorry if I offended.
     
  39. Chris Gracey

    Chris Gracey Active Member

    You have my respect
     
  40. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    No correlation between joint position sense and force sense for measuring ankle proprioception in subjects with healthy and functional ankle instability
    Chang-Yong Kim, Jong-Duk Choi, Hyeong-Dong Kim
    Clinical Biomechanics; Articles in Press
     
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