ankle joint


Summary: The joint that is formed by the inferior articular and malleolar articular surfaces of the TIBIA; the malleolar articular surface of the FIBULA; and the medial malleolar, lateral malleolar, and superior surfaces of the TALUS.

Top Publications

  1. ncbi Anatomy of the tibiofibular syndesmosis and its clinical relevance
    Jan Bartonicek
    Orthopedic Department of 3rd Faculty of Medicine, Charles University, Prague, Czech Republic
    Surg Radiol Anat 25:379-86. 2003
  2. ncbi Predicting lower limb joint kinematics using wearable motion sensors
    A Findlow
    Centre for Rehabilitation and Human Performance Research, University of Salford, Salford, UK
    Gait Posture 28:120-6. 2008
  3. ncbi Control of a powered ankle-foot prosthesis based on a neuromuscular model
    Michael F Eilenberg
    Mechanical Engineering Department, Massachusetts Institute of Technology MIT, Cambridge, MA, USA
    IEEE Trans Neural Syst Rehabil Eng 18:164-73. 2010
  4. ncbi Powered ankle-foot prosthesis to assist level-ground and stair-descent gaits
    Samuel Au
    MIT Media Laboratory, 20 Ames Street, Cambridge, MA 02139, USA
    Neural Netw 21:654-66. 2008
  5. ncbi Dynamics of the ankle joint analyzed through moment-angle loops during human walking: gender and age effects
    Paolo Crenna
    Istituto di Fisiologia Umana I, LAMB P and L Mariani, Universita degli Studi, Milan, Italy
    Hum Mov Sci 30:1185-98. 2011
  6. ncbi Contributions of the individual ankle plantar flexors to support, forward progression and swing initiation during walking
    R R Neptune
    Rehabilitation R and D Center 153, VA Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304, USA
    J Biomech 34:1387-98. 2001
  7. pmc Human balancing of an inverted pendulum: position control by small, ballistic-like, throw and catch movements
    Ian D Loram
    School of Sport and Exercise Sciences, The University of Birmingham, Birmingham B15 2TT, UK
    J Physiol 540:1111-24. 2002
  8. ncbi Injury of the tibiofibular syndesmosis: value of MR imaging for diagnosis
    Kazunori Oae
    Department of Orthopaedics, Shimane Medical University, 89 1 Enya cho, Izumo, Shimane 693 8501, Japan
    Radiology 227:155-61. 2003
  9. ncbi Effects of breathing on multijoint control of center of mass position during upright stance
    Nikita A Kuznetsov
    Center for Cognition, Action, and Perception, Department of Psychology, University of Cincinnati, Ohio 45221, USA
    J Mot Behav 44:241-53. 2012
  10. ncbi Architecture of the medial gastrocnemius in children with spastic diplegia
    Adam P Shortland
    One Small Step Gait Laboratory, Guy s Hospital, London, UK
    Dev Med Child Neurol 44:158-63. 2002

Detail Information

Publications328 found, 100 shown here

  1. ncbi Anatomy of the tibiofibular syndesmosis and its clinical relevance
    Jan Bartonicek
    Orthopedic Department of 3rd Faculty of Medicine, Charles University, Prague, Czech Republic
    Surg Radiol Anat 25:379-86. 2003
  2. ncbi Predicting lower limb joint kinematics using wearable motion sensors
    A Findlow
    Centre for Rehabilitation and Human Performance Research, University of Salford, Salford, UK
    Gait Posture 28:120-6. 2008
    ..Whilst predictions were generally stable when sensor data was lost, it remains to be seen whether the generalised regression networks algorithm is robust for other activities such as stair climbing...
  3. ncbi Control of a powered ankle-foot prosthesis based on a neuromuscular model
    Michael F Eilenberg
    Mechanical Engineering Department, Massachusetts Institute of Technology MIT, Cambridge, MA, USA
    IEEE Trans Neural Syst Rehabil Eng 18:164-73. 2010
    ..This study highlights the importance of neuromuscular controllers for enhancing the adaptiveness of powered prosthetic devices across varied terrain surfaces...
  4. ncbi Powered ankle-foot prosthesis to assist level-ground and stair-descent gaits
    Samuel Au
    MIT Media Laboratory, 20 Ames Street, Cambridge, MA 02139, USA
    Neural Netw 21:654-66. 2008
    ..The results of this study highlight the potential of prosthetic leg controllers that exploit neural signals to trigger terrain-appropriate, local prosthetic leg behaviors...
  5. ncbi Dynamics of the ankle joint analyzed through moment-angle loops during human walking: gender and age effects
    Paolo Crenna
    Istituto di Fisiologia Umana I, LAMB P and L Mariani, Universita degli Studi, Milan, Italy
    Hum Mov Sci 30:1185-98. 2011
    Aim of this study was to provide a non-invasive assessment of the dynamic properties of the ankle joint during human locomotion, with specific focus on the effects of gender and age...
  6. ncbi Contributions of the individual ankle plantar flexors to support, forward progression and swing initiation during walking
    R R Neptune
    Rehabilitation R and D Center 153, VA Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304, USA
    J Biomech 34:1387-98. 2001
  7. pmc Human balancing of an inverted pendulum: position control by small, ballistic-like, throw and catch movements
    Ian D Loram
    School of Sport and Exercise Sciences, The University of Birmingham, Birmingham B15 2TT, UK
    J Physiol 540:1111-24. 2002
    ..Minimisation of sway size was caused by improvement in the accuracy of the anticipatory torque impulses. We hypothesise that examination of centre of mass and centre of pressure data for quiet standing will duplicate these results...
  8. ncbi Injury of the tibiofibular syndesmosis: value of MR imaging for diagnosis
    Kazunori Oae
    Department of Orthopaedics, Shimane Medical University, 89 1 Enya cho, Izumo, Shimane 693 8501, Japan
    Radiology 227:155-61. 2003
    ..To compare the use of magnetic resonance (MR) imaging with the use of arthroscopy for the diagnosis of tibiofibular syndesmotic injury...
  9. ncbi Effects of breathing on multijoint control of center of mass position during upright stance
    Nikita A Kuznetsov
    Center for Cognition, Action, and Perception, Department of Psychology, University of Cincinnati, Ohio 45221, USA
    J Mot Behav 44:241-53. 2012
    ..This result supports the hypothesis that motor abundance of the postural chain plays an important role in the flexible compensation for breathing during quiet stance...
  10. ncbi Architecture of the medial gastrocnemius in children with spastic diplegia
    Adam P Shortland
    One Small Step Gait Laboratory, Guy s Hospital, London, UK
    Dev Med Child Neurol 44:158-63. 2002
    Ultrasound images were obtained of the medial gastrocnemius at different ankle joint positions with the knee extended...
  11. ncbi Joint torques and dynamic joint stiffness in elderly and young men during stepping down
    Sally D Lark
    Active Life Span Research, Manchester Metropolitan University, Alsager ST7 2HL, UK
    Clin Biomech (Bristol, Avon) 18:848-55. 2003
    ..To compare the joint torque pattern and dynamic joint stiffness at the knee and ankle in elderly and young men during stepping down...
  12. ncbi Cardio-ankle vascular index measures arterial wall stiffness independent of blood pressure
    Junko Ibata
    The First Department of Medicine, Wakayama Medical University, Kimiidera 811 1, Wakayama, P O 641 8509, Japan
    Diabetes Res Clin Pract 80:265-70. 2008
    ..Our findings suggest that CAVI is independent of BP and useful as an indicator of early arteriosclerosis in diabetic subjects...
  13. ncbi Tissue engineered ceramic artificial joint--ex vivo osteogenic differentiation of patient mesenchymal cells on total ankle joints for treatment of osteoarthritis
    Hajime Ohgushi
    Research Institute for Cell Engineering RICE, National Institute of Advanced Industrial Science and Technology AIST, Amagasaki City, Hyogo 661 0974, Japan
    Biomaterials 26:4654-61. 2005
    ..These preliminary results indicate that the tissue engineering approach using autologous cultured marrow mesenchymal cells might prevent aseptic loosening of the total ankle arthroplasty...
  14. ncbi The effect of ankle rotation on cutting of the tibia in total knee arthroplasty
    Hideki Mizu-uchi
    Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3 1 1, Maidashi, Higashi ku, Fukuoka City, 812 8582, Japan
    J Bone Joint Surg Am 88:2632-6. 2006
    ..One disadvantage is that the guide is easily affected by the position of the ankle joint. The tibia may have a rotational mismatch between its proximal and distal ends...
  15. pmc Massive weight loss-induced mechanical plasticity in obese gait
    Tibor Hortobagyi
    Department of Exercise and Sport Science, East CarolinaUniversity, Greenville, North Carolina, USA
    J Appl Physiol (1985) 111:1391-9. 2011
    ..There may be a weight loss threshold of 30 kg limiting changes in gait kinematics. Implications for exercise prescription are also discussed...
  16. pmc Validity, reliability, and responsiveness of a self-reported foot and ankle score (SEFAS)
    Maria Cöster
    Department of Orthopedics, Kalmar Hospital, Sweden
    Acta Orthop 83:197-203. 2012
    ..We evaluated the reliability, validity, and responsiveness of the modified Swedish version of the questionnaire (SEFAS) in patients with osteoarthritis or inflammatory arthritis before and/or after their ankle was replaced or fused...
  17. ncbi Is the stabilization of quiet upright stance in humans driven by synchronized modulations of the activity of medial and lateral gastrocnemius muscles?
    Taian M M Vieira
    Laboratory for Engineering of the Neuromuscular System, Politecnico di Torino, Via Cavali 22 H 10138, Torino, Italy
    J Appl Physiol (1985) 108:85-97. 2010
    ..Hence, the stabilization of the quiet standing posture likely relies on flexible rather than stereotyped mechanisms of control...
  18. ncbi The role of muscles in joint adaptation and degeneration
    W Herzog
    University of Calgary, 2500 University Drive N W, Calgary, Alberta, T2N 1N4, Canada
    Langenbecks Arch Surg 388:305-15. 2003
    ..We attempt to emphasize the close dependence of muscle forces, joint loading and degeneration and, vice versa, try to point out how joint degeneration affects muscle forces and joint loading...
  19. ncbi Reliability of ankle isometric, isotonic, and isokinetic strength and power testing in older women
    Sandra C Webber
    Department of Physiology, Faculty of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
    Phys Ther 90:1165-75. 2010
    ..Although strength and power parameters frequently are measured with dynamometers, few studies have examined the reliability of measurements of different types of contractions...
  20. pmc Validity and inter-rater reliability of medio-lateral knee motion observed during a single-limb mini squat
    Eva Ageberg
    Department of Orthopedics, Clinical Sciences Lund, Lund University, Sweden
    BMC Musculoskelet Disord 11:265. 2010
    ..The aim was to validate an observational clinical test of assessing the medio-lateral knee motion, using a three-dimensional (3-D) motion analysis system. In addition, the inter-rater reliability was evaluated...
  21. ncbi Validation of the Turkish version of the foot and ankle outcome score
    Altinay Goksel Karatepe
    Department of Physical Medicine and Rehabilitation, Izmir Training and Research Hospital, Izmir, Turkey
    Rheumatol Int 30:169-73. 2009
    ..The Turkish FAOS correlated with the SF-36 and AIMS2 scales. The Turkish version of FAOS was valid and reliable instrument to assess the foot and ankle related problems. However, to assess its responsiveness further studies are needed...
  22. ncbi A comparison of foot kinematics in people with normal- and flat-arched feet using the Oxford Foot Model
    Pazit Levinger
    Musculoskeletal Research Centre, Faculty of Health Sciences, La Trobe University, Bundoora 3086, Vic, Australia
    Gait Posture 32:519-23. 2010
    ..8° ± 4.4° vs -2.5° ± 2.6°; p=0.06). These findings support the notion that flat-arched feet have altered motion associated with greater pronation during gait; factors that may increase the risk of overuse injury...
  23. ncbi Gait kinematics and kinetics of 7-year-old children: a comparison to adults using age-specific anthropometric data
    Kathleen J Ganley
    Harrington Department of Bioengineering, Arizona State University, Tempe, AZ 85287 9709, USA
    Gait Posture 21:141-5. 2005
    ..These results provide support for the hypothesis that children lack the neuromuscular maturity, especially at the ankle, to produce an adult-like gait pattern...
  24. ncbi Ankle muscle stiffness in the control of balance during quiet standing
    D A Winter
    Department of Kinesiology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
    J Neurophysiol 85:2630-3. 2001
    ..92, confirming how closely the model approached a perfect spring that would have an R(2) = 1. These results confirm our model of a simple muscle stiffness control and refutes the criticisms...
  25. ncbi Control and estimation of posture during quiet stance depends on multijoint coordination
    Wei Li Hsu
    Dept of Physical Therapy, Biomechanics and Movement Science Program, 307 McKinly Laboratory, University of Delaware, Newark, DE 19716, USA
    J Neurophysiol 97:3024-35. 2007
    ..The results reveal a control strategy involving coordinated variations of most major joints to stabilize variables important to postural control during quiet stance...
  26. pmc The subchondral bone in articular cartilage repair: current problems in the surgical management
    Andreas H Gomoll
    Department of Orthopaedic Surgery, Brigham and Women s Hospital, Harvard Medical School, Chestnut Hill, MA 02467, USA
    Knee Surg Sports Traumatol Arthrosc 18:434-47. 2010
    ..cell-based implants, as well as strategies after failed subchondral repair and problems specific to the ankle joint. Lastly, since this area remains in constant evolution, the requirements for prospective studies needed to ..
  27. ncbi The effect of foot and ankle prosthetic components on braking and propulsive impulses during transtibial amputee gait
    Robert J Zmitrewicz
    Department of Mechanical Engineering, University of Texas, Austin, TX 78712, USA
    Arch Phys Med Rehabil 87:1334-9. 2006
    ..To assess the influence of energy storage and return (ESAR) prosthetic feet and multi-axis ankles on ground reaction forces and loading asymmetry between lower limbs in transtibial amputees...
  28. ncbi Current concepts in the diagnosis and treatment of osteochondral lesions of the ankle
    Padhraig F O'Loughlin
    Hospital for Special Surgery, New York, New York 10021, USA
    Am J Sports Med 38:392-404. 2010
    ..The purpose of this article is to review the history, etiology, and classification systems for osteochondral lesions of the ankle, as well as to describe current approaches to diagnosis and management...
  29. ncbi Changes in cardio-ankle vascular index in smoking cessation
    Hirofumi Noike
    Department of Cardiovascular Center, Sakura Medical Center, School of Medicine, Toho University, 561 4 Shimoshizu, Sakura City, Chiba, Japan
    J Atheroscler Thromb 17:517-25. 2010
    ..To investigate the effect of smoking and smoking cessation on cardio-ankle vascular index (CAVI)...
  30. ncbi Visual flow is interpreted relative to multisegment postural control
    Tim Kiemel
    Department of Kinesiology, University of Maryland, College Park, MD 20742 2611, USA
    J Mot Behav 43:237-46. 2011 to 3 types of visual-scene movement: translation in the anteroposterior direction, rotation about the ankle joint, and rotation about the hip joint...
  31. ncbi Clonus is explained from increased reflex gain and enlarged tissue viscoelasticity
    Erwin de Vlugt
    Department of Mechanical Engineering, Laboratory of Neuromuscular Control, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands
    J Biomech 45:148-55. 2012 patients with stroke (n = 3) and SCI (n = 4) using a nonlinear antagonistic muscle model of the human ankle joint. Ia reflex gain was varied by changing motor unit pool threshold and gain, and passive tissue viscosity and ..
  32. ncbi Inversion-eversion moment arms of gastrocnemius and tibialis anterior measured in vivo
    Sabrina S M Lee
    Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA
    J Biomech 41:3366-70. 2008
    ..This method for assessing muscle action in vivo used in this study may prove useful for subject-specific planning of surgical treatments for frontal plane foot and ankle deformities...
  33. ncbi Knee and ankle joint stiffness in sprint running
    Sami Kuitunen
    Neuromuscular Research Center, Department of Biology of Physical Activity, University of Jyvaskyla, Jyvaskyla, Finland
    Med Sci Sports Exerc 34:166-73. 2002
    ..Stiffness has often been considered as a regulated property of the neuromuscular system. The purpose of this study was to examine the ankle and knee joint stiffness regulation during sprint running...
  34. pmc Osteochondral defects in the ankle: why painful?
    C Niek van Dijk
    Department of Orthopaedic Surgery, Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands
    Knee Surg Sports Traumatol Arthrosc 18:570-80. 2010
    ..The ankle joint has a high congruency...
  35. ncbi An improved powered ankle-foot orthosis using proportional myoelectric control
    Daniel P Ferris
    Department of Movement Science, University of Michigan, Ann Arbor, MI 48109 2214, USA
    Gait Posture 23:425-8. 2006
    ..The orthosis may be helpful in studying human walking biomechanics and assisting patients during gait rehabilitation after neurological injury...
  36. pmc All joint moments significantly contribute to trunk angular acceleration
    Cameron R Nott
    Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL, USA
    J Biomech 43:2648-52. 2010
    ..Furthermore, it is shown that inter-planar coupling exists and a two-dimensional analysis of trunk balance neglects important out-of-plane joint moments that affect trunk angular acceleration...
  37. ncbi Three-dimensional analysis of ankle instability after tibiofibular syndesmosis injuries: a biomechanical experimental study
    Atsushi Teramoto
    Department of Orthopedic Surgery, Sapporo Medical University, Sapporo, Hokkaido 060 8543, Japan
    Am J Sports Med 36:348-52. 2008
    ..Most studies of syndesmosis injuries have concentrated only on external rotation instability of the ankle joint and have not examined other defects.
  38. ncbi Ankle proprioception is not targeted by exercises on an unstable surface
    Henri Kiers
    Research Group Lifestyle and Health, University of Applied Sciences Utrecht, Bolognalaan 101, 3584 CJ Utrecht, The Netherlands
    Eur J Appl Physiol 112:1577-85. 2012
    ..Exercises on an unstable surface may challenge the capacity of the central nervous system to shift the weighting of sources of proprioceptive signals on balance...
  39. ncbi Individual-specific muscle maximum force estimation using ultrasound for ankle joint torque prediction using an EMG-driven Hill-type model
    Liliam Fernandes de Oliveira
    School of Physical Education and Sports, Federal University of Rio de Janeiro, Av Pau Brasil 540, Ilha do Fundao, Cidade Universitaria, 21941 590 Rio de Janeiro RJ, Brazil
    J Biomech 43:2816-21. 2010
    ..and from data widely cited in the literature was used to comparatively test a Hill-type EMG-driven model of the ankle joint. The model uses 3 EMGs (Soleus, gastrocnemius medialis and gastrocnemius lateralis) as inputs with joint torque ..
  40. pmc Stretch reflex coupling between the hip and knee: implications for impaired gait following stroke
    James M Finley
    Department of Biomedical Engineering, Northwestern University, Evanston, IL 60201, USA
    Exp Brain Res 188:529-40. 2008
  41. ncbi Perioperative complications of total ankle arthroplasty
    Mark S Myerson
    Union Memorial Orthopaedics, The Johnston Professional Building, 400, 3333 North Calvert Street, Baltimore, MD 21218, USA
    Foot Ankle Int 24:17-21. 2003
    ..This information can be used as a teaching tool to decrease the incidence of complications for surgeons performing their initial arthroplasties with this potentially technically demanding procedure...
  42. pmc Ankle alignment on lateral radiographs. Part 1: sensitivity of measures to perturbations of ankle positioning
    Yuki Tochigi
    Orthopaedic Biomechanics Laboratory, University of Iowa, 2181 Westlawn, Iowa City, IA 52242 1100, USA
    Foot Ankle Int 27:82-7. 2006
    ..To identify a radiographic measure of anteroposterior tibial-talar alignment that meets those requirements, three methods were compared to determine their sensitivity to perturbations in ankle positioning...
  43. ncbi Heterogeneity of muscle activation in relation to force direction: a multi-channel surface electromyography study on the triceps surae muscle
    D Staudenmann
    Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Vander Boechorstraat 9, 1081 BT Amsterdam, The Netherlands
    J Electromyogr Kinesiol 19:882-95. 2009
    ..The correlations between cluster time series and forces at the foot in specific directions differed substantially between clusters, showing that the differentially activated parts of the TS had specific biomechanical functions...
  44. ncbi [Differences in metabolism of chondrocytes of the knee and ankle joint]
    Wolfgang Eger
    Orthopädische Klinik Wichernhaus am Krankenhaus Rummelsberg, Schwarzenbruck, Germany
    Z Orthop Ihre Grenzgeb 141:18-20. 2003
  45. ncbi The effects of a controlled energy storage and return prototype prosthetic foot on transtibial amputee ambulation
    Ava D Segal
    Department of Veterans Affairs, RR and D Center, Seattle, WA, USA
    Hum Mov Sci 31:918-31. 2012
    ..Controlled energy storage and return enhanced prosthetic push-off, but requires further design modifications to improve amputee walking economy...
  46. ncbi The effects of walking speed on forefoot, hindfoot and ankle joint motion
    R Dubbeldam
    Roessingh Research and Development, Roessinghsbleekweg 33b, 7522 AH Enschede, The Netherlands
    Clin Biomech (Bristol, Avon) 25:796-801. 2010
    Foot and ankle joint kinematic differences have been identified between healthy subjects and subjects with various pathologies suffering from foot and ankle impairments...
  47. pmc Therapeutic effects of TACI-Ig on rat with adjuvant arthritis
    D Wang
    Institute of Clinical Pharmacology, Anhui Medical University, Hefei RC Biotechnologies Ltd, Yantai, China
    Clin Exp Immunol 163:225-34. 2011
    ..Arthritis was evaluated by arthritis global assessment and swollen joint count (SJC). The ankle joint and spleen were harvested for histopathological examination. Spleen index and thymus index were calculated...
  48. pmc Motor adaptation during dorsiflexion-assisted walking with a powered orthosis
    Pei Chun Kao
    Division of Kinesiology, 401 Washtenaw Avenue, University of Michigan, Ann Arbor, MI 48109 2214, USA
    Gait Posture 29:230-6. 2009
    ..These results provide baseline data of EMG controlled dorsiflexion assist in neurologically intact humans that can be used to guide future studies on neurologically impaired individuals...
  49. ncbi Effect of different ankle- and knee-joint positions on gastrocnemius medialis fascicle length and EMG activity during isometric plantar flexion
    Adamantios Arampatzis
    German Sport University of Cologne, Institute for Biomechanics and Orthopaedics, Carl Diem Weg 6, 50933 Cologne, Germany
    J Biomech 39:1891-902. 2006
    ..To examine the resultant ankle joint moments the kinematics of the left leg were recorded using a Vicon 624 system with 8 cameras operating at 120 ..
  50. ncbi Dorsal mobility and first ray stiffness in patients with diabetes mellitus
    Ward Mylo Glasoe
    School of Allied Health Professions, Wirtz Hall 209E, DeKalb, IL 60115, USA
    Foot Ankle Int 25:550-5. 2004
    ..We examined dorsal mobility and passive first ray stiffness in patients with diabetes and investigated the relationship between first ray mobility and ankle joint dorsiflexion.
  51. ncbi Results of an Internet survey determining the most frequently used ankle scores by AOFAS members
    Johnny T C Lau
    Orthopaedic Surgery, UHN Toronto Western Hospital, Toronto, Ontario, Canada
    Foot Ankle Int 26:479-82. 2005
    ..The literature recommends the use of valid, reliable, and responsive ankle scores, but the ankle scores commonly used in clinical practice remain undefined...
  52. ncbi Critical proinflammatory role of thymic stromal lymphopoietin and its receptor in experimental autoimmune arthritis
    S A Y Hartgring
    University Medical Center Utrecht, Utrecht, The Netherlands
    Arthritis Rheum 63:1878-87. 2011
    ..The purpose of this study was to investigate the effects of TSLP administration and TSLP receptor deficiency on immune activation, arthritis severity, and tissue destruction in T cell-driven arthritis models of RA...
  53. ncbi Autologous chondrocyte transplantation in osteochondral lesions of the ankle joint
    S Giannini
    Bologna University, Istituti Ortopedici Rizzoli, Italy
    Foot Ankle Int 22:513-7. 2001
    The aim of this study was to assess the repair of osteochondral defects of the ankle joint with hyaline cartilage...
  54. ncbi Aging does not affect voluntary activation of the ankle dorsiflexors during isometric, concentric, and eccentric contractions
    Malgorzata Klass
    Laboratory of Applied Biology, Universite Libre de Bruxelles, 28 Ave P Héger, CP 168, 1000 Brussels, Belgium
    J Appl Physiol 99:31-8. 2005
    ..Instead, this age-related adaptation and the mechanisms that preserve force in Ecc contractions appeared to be located at the muscular level...
  55. ncbi The effects of rotation on radiographic evaluation of the tibiofibular syndesmosis
    Spiros G Pneumaticos
    Department of Orthopaedic Surgery, Baylor College of Medicine, Houston, TX, USA
    Foot Ankle Int 23:107-11. 2002
    ..All other measurements changed dramatically with rotation. In our specimens, a true mortise view of the ankle joint was obtained by internally rotating the extremity an average of 13.6+/-0.7 degrees (range, 12.0 degrees to 17...
  56. ncbi Postural coordination in looking and tracking tasks
    Olivier Oullier
    Mouvement and Perception, Universite de la Mediterranee, Marseille, France
    Hum Mov Sci 21:147-67. 2002
    ..Overall, the dynamics of hip-ankle coordination were qualitatively similar during the looking and tracking tasks. This similarity has consequences for the development of a general theory of the visual regulation of stance...
  57. pmc Etiology of ankle osteoarthritis
    Victor Valderrabano
    Department of Orthopaedics, University of Basel, University Hospital of Basel, Spitalstrasse 21, 4031 Basel, Switzerland
    Clin Orthop Relat Res 467:1800-6. 2009
    ..Our study showed trauma is the main cause of ankle OA and primary OA is rare. In the majority of patients with ankle OA the average tibiotalar alignment is varus regardless of the underlying etiology...
  58. ncbi The morphology of the medial gastrocnemius in typically developing children and children with spastic hemiplegic cerebral palsy
    Ritu Malaiya
    One Small Step Gait Laboratory, Guy s Hospital, London SE1 9RT, UK
    J Electromyogr Kinesiol 17:657-63. 2007
    ..3 degrees +/-11.8). Scans were taken of both legs with the ankle joint at its resting angle (RA) and at maximum passive dorsiflexion (MD), with the knee extended...
  59. ncbi Correlating factors and clinical significance of flexible flatfoot in preschool children
    C J Lin
    Pediatric Orthopedic Section of Orthopedic Department, National Cheng Kung University Medical College, Tainan, Taiwan
    J Pediatr Orthop 21:378-82. 2001
    ..Better understanding of the correlating factors and the clinical relevance of FF may prove helpful in deciding on the most appropriate treatment for a particular patient...
  60. ncbi ISB recommendation on definition of joint coordinate systems for the reporting of human joint motion-part I: ankle, hip and spine
    Richard Baker
    J Biomech 36:300-2; author reply 303-4. 2003
  61. ncbi Effects of localization and intensity of experimental muscle pain on ankle joint proprioception
    Dagfinn Matre
    Department of Physiology, National Institute of Occupational Health, PO Box 8149 Dep N 0033, Oslo, Norway
    Eur J Pain 6:245-60. 2002
    ..The present findings indicate that human ankle proprioception is rather robust to muscle pain...
  62. ncbi Diagnosis of a tear of the tibiofibular syndesmosis. The role of arthroscopy of the ankle
    M Takao
    Department of Orthopaedics, Shimane Medical University, Inzumo, Japan
    J Bone Joint Surg Br 85:324-9. 2003
    ..MRI was useful although there were two-false positive cases. We suggest that arthroscopy of the ankle is indispensable for the accurate diagnosis of a tear of the tibiofibular syndesmosis...
  63. ncbi Effect of isokinetic training on strength, functionality and proprioception in athletes with functional ankle instability
    Ufuk Sekir
    Department of Sports Medicine, Medical School of Uludag University, 16059 Gorukle, Bursa, Turkey
    Knee Surg Sports Traumatol Arthrosc 15:654-64. 2007
    ..of 24 recreational athletes with unilateral FAI were evaluated by using isokinetic muscle strength measurement, ankle joint position sense and one leg standing test. The functional ability was evaluated using five different tests...
  64. ncbi The effect of prolonged static and cyclic stretching on ankle joint stiffness, torque relaxation, and gait in people with stroke
    Eadric Bressel
    Utah State University, Department of Health, Physical Education, and Recreation, 7000 Old Main Hill, Logan, UT 84322, USA
    Phys Ther 82:880-7. 2002
    ..The purpose of this study was to examine the short-term effects of prolonged static and cyclic calf stretching on passive ankle joint stiffness, torque relaxation, and gait in people with ischemic stroke.
  65. ncbi 257 ankle arthroplasties performed in Norway between 1994 and 2005
    Bjørg Tilde S Fevang
    Department of Rheumatology, Haukeland University Hospital, Bergen, Norway
    Acta Orthop 78:575-83. 2007
    ..Here we report data on the use of total ankle replacements and the revision rate in the Norwegian population over a 12-year period...
  66. pmc Fibroma of tendon sheath located within the ankle joint capsule
    Riccardo Ciatti
    Casa di Cura Villa Stuart, Rome, Italy
    J Orthop Traumatol 10:147-50. 2009
    We report a very rare case of fibroma of the tendon sheath arising from the anteromedial ankle joint capsule, with no apparent connection to any tendon in the area, found in a 58-year-old patient complaining of progressive local swelling...
  67. ncbi The Swedish Ankle Arthroplasty Register: An analysis of 531 arthroplasties between 1993 and 2005
    Anders Henricson
    Department of Orthopaedics, Falu Hospital, Falun, Sweden
    Acta Orthop 78:569-74. 2007
    ..Whether or not ankles can be replaced with reasonable safety has been the subject of debate. We present the results of a nationwide series of total ankle arthroplasties...
  68. pmc Functional electrical stimulation of ankle plantarflexor and dorsiflexor muscles: effects on poststroke gait
    Trisha M Kesar
    Department of Physical Therapy, University of Delaware, Newark, DE 19702, USA
    Stroke 40:3821-7. 2009
    ..Ankle plantarflexor muscles play an important role during gait. The aim of the current study was to test the immediate effects of delivering FES to both ankle plantarflexors and dorsiflexors on poststroke gait...
  69. pmc Recycling energy to restore impaired ankle function during human walking
    Steven H Collins
    Department of Biomechanical Engineering, Delft University of Technology, Delft, The Netherlands
    PLoS ONE 5:e9307. 2010
    ..However, dissipation and replacement by muscles might not be necessary if energy were instead captured and reused by an assistive device...
  70. ncbi A review of the biomechanics of the diabetic foot
    C H M van Schie
    Department of Rehabilitation, University of Amsterdam, The Netherlands
    Int J Low Extrem Wounds 4:160-70. 2005
    ..Pressure relief can be achieved using various off-loading modalities including accommodative dressing, walking splints, ankle-foot orthosis, total contact cast, and removable and irremovable cast walkers...
  71. ncbi Recovery of locomotor function after treadmill training of incomplete spinal cord injured rats
    A Thota
    Center for Biomedical Engineering, University of Kentucky, Lexington, KY 40506-0070, USA
    Biomed Sci Instrum 37:63-7. 2001
    ..The results suggest that functional recovery of locomotion could be an activity dependent process...
  72. pmc Systematic review of postural control and lateral ankle instability, part II: is balance training clinically effective?
    Patrick O McKeon
    Division of Athletic Training, University of Kentucky, Lexington, KY 40536 0200, USA
    J Athl Train 43:305-15. 2008
    ..ankle sprain? (2) Can balance and coordination training improve treatment outcomes associated with acute ankle sprains? (3) Can balance and coordination training improve treatment outcomes in patients with chronic ankle instability?..
  73. ncbi Three-dimensional kinetic analysis of running: significance of secondary planes of motion
    I McClay
    Motion Analysis Laboratory, University of Delaware, Newark 19716, USA
    Med Sci Sports Exerc 31:1629-37. 1999
    ..These injuries are often due to deviations in the secondary planes of motion. However, little is known about the angular kinetics in these planes leaving no reference for comparison...
  74. ncbi Total ankle arthroplasty in inflammatory joint disease with use of two mobile-bearing designs
    H Cornelis Doets
    Department of Orthopaedic Surgery, Slotervaart Hospital, Louwesweg 6, 1066 EC Amsterdam, The Netherlands
    J Bone Joint Surg Am 88:1272-84. 2006
    ..However, to our knowledge, no study has focused exclusively on patients with the diagnosis of inflammatory joint disease or has provided a detailed analysis of the risk factors for failure...
  75. ncbi A reliability study of biomechanical foot function in psoriatic arthritis based on a novel multi-segmented foot model
    Elaine Hyslop
    School of Health, Glasgow Caledonian University, Cowcaddens Road, Glasgow G4 0BA, UK
    Gait Posture 32:619-26. 2010
    ..Some discrete kinematic variables have poor reliability and should not be used in prospective cohort and intervention studies...
  76. ncbi Gait analysis using gravitational acceleration measured by wearable sensors
    Ryo Takeda
    Division of Human Mechanical Systems and Design, Graduate School of Engineering, Hokkaido University, N13 W8, Kita ku, Sapporo, Hokkaido 060 8628, Japan
    J Biomech 42:223-33. 2009
    ..In addition, the trajectories of the knee joint in the horizontal plane could be checked by visual imaging on a PC. Therefore, this method provides important quantitive information for gait diagnosis...
  77. ncbi The effect of trunk-flexed postures on balance and metabolic energy expenditure during standing
    Devjani Saha
    Northwestern University Prosthetics Research Laboratory and Rehabilitation Engineering Research Program, Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
    Spine (Phila Pa 1976) 32:1605-11. 2007
    ..This study analyzed force plate, kinematic, and metabolic energy data of 14 able-bodied subjects standing statically with upright and trunk-flexed postures...
  78. ncbi Muscle-tendon interaction and elastic energy usage in human walking
    Masaki Ishikawa
    Neuromuscular Research Center, Department of Biology of Physical Activity, University of Jyvaskyla, PO Box 35 LL2, 40014 Jyvaskyla, Finland
    J Appl Physiol (1985) 99:603-8. 2005
  79. ncbi A comparison of gait with solid and hinged ankle-foot orthoses in children with spastic diplegic cerebral palsy
    Sandra A Radtka
    Graduate Program in Physical Therapy, University of California at San Francisco San Francisco State University, 1600 Holloway Avenue, San Francisco, CA 94132, USA
    Gait Posture 21:303-10. 2005
    ..Lower extremity muscle timing, knee and ankle joint motions, moments and powers, and temporal-distance characteristics were measured during ambulation for an ..
  80. ncbi Clinical assessment of ankle joint dorsiflexion: a review of measurement techniques
    Alfred Gatt
    Podiatry Department, Faculty of Health Sciences, University of Malta, Msida, Malta
    J Am Podiatr Med Assoc 101:59-69. 2011
    ..In 755 studies that used some form of ankle joint dorsiflexion measurement, ten different techniques were identified that included various apparatuses designed ..
  81. ncbi Functional evaluation of the Scandinavian Total Ankle Replacement
    Chris Dyrby
    Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA
    Foot Ankle Int 25:377-81. 2004
    The purpose of this study was to evaluate the function of the ankle joint during walking before and after Scandinavian Total Ankle Replacement (STAR)...
  82. ncbi Differences between measured and resultant joint moments during isometric contractions at the ankle joint
    Adamantios Arampatzis
    Institute for Biomechanics, German Sport University of Cologne, Carl Diem Weg 6 Cologne 50933, Germany
    J Biomech 38:885-92. 2005
    ..the moments measured at the dynamometer are different from the resultant moments in the same plane around the ankle joint and (b) at a given resultant moment during electrically induced isometric contractions the ankle angle while ..
  83. pmc Numerical simulation of strain-adaptive bone remodelling in the ankle joint
    Anas Bouguecha
    Institute of Metal Forming and Metal Forming Machines, Leibniz Universitat Hannover, An der Universität 2, 30823 Garbsen, Germany
    Biomed Eng Online 10:58. 2011
    ..studies, to our knowledge there are no investigations that have considered remodelling processes of the ankle joint. In order to evaluate and optimise new generation implants of the ankle joint, as well as to gain additional ..
  84. ncbi Effect on spasticity after performance of dynamic-repeated-passive ankle joint motion exercise in chronic stroke patients
    Chin Li Wu
    Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
    Kaohsiung J Med Sci 22:610-7. 2006
    ..In conclusion, 15 minutes of dynamic-repeated-passive ankle joint motion exercise with weight loading in the standing position by this simple constant-speed machine is effective ..
  85. ncbi Anteromedial impingement in the ankle joint: outcomes following arthroscopy
    Christopher D Murawski
    Hospital for Special Surgery, New York, New York, USA
    Am J Sports Med 38:2017-24. 2010
    Arthroscopic debridement is a well-accepted method of removing osseous and/or soft tissue impingement from the ankle joint. To the best of the authors' knowledge, this is the first case series reporting the outcomes following ..
  86. ncbi Subtalar joint arthrodesis, ankle arthrodiastasis, and talar dome resurfacing with the use of a collagen-glycosaminoglycan monolayer
    Crystal L Ramanujam
    Division of Podiatric Medicine and Surgery, Department of Orthopaedic Surgery, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive MSC 7776, San Antonio, TX, 78229, USA
    Clin Podiatr Med Surg 27:327-33. 2010
    ..The authors describe a method of a delayed subtalar joint arthrodesis, ankle joint arthrodiastasis, and talar resurfacing with positive results for the management of painful posttraumatic ..
  87. ncbi Joint stiffness of the ankle and the knee in running
    Michael Gunther
    Biomechanics Group, Institute of Sports Science, Friedrich Schiller University, Seidelstrasse 20, D 07749 Jena, Germany
    J Biomech 35:1459-74. 2002
    ..clearly support the theoretical predictions: the knee joint is always stiffer and more extended than the ankle joint. Moreover, the knee torque characteristic on the average shows the higher nonlinearity...
  88. ncbi Radiological study of joint destruction patterns in rheumatoid flatfoot
    Takako Hattori
    Department of Orthopedic Surgery, Osaka University Medical School, 2 2, Yamadaoka, Suita, Osaka 565 0871, Japan
    Clin Rheumatol 27:733-7. 2008
    ..Groups II and III were thought to be a different pattern of flattening. The present results suggest that there are at least two patterns of flattening in rheumatoid hindfoot...
  89. pmc Contractile and elastic ankle joint muscular properties in young and older adults
    Christopher J Hasson
    Biomechanics Laboratory, Department of Kinesiology, University of Massachusetts Amherst, Amherst, Massachusetts, United States of America
    PLoS ONE 6:e15953. 2011 contractile and elastic properties of both dorsi- (DF) and plantarflexor (PF) muscles controlling the ankle joint in young and older adults...
  90. ncbi Autologous osteochondral transplantation of the talus partially restores contact mechanics of the ankle joint
    Ashraf M Fansa
    Hospital for Special Surgery, 523 E 72nd Street, New York, NY 10021, USA
    Am J Sports Med 39:2457-65. 2011
    Autologous osteochondral transplantation procedures provide hyaline cartilage to the site of cartilage repair. It remains unknown whether these procedures restore native contact mechanics of the ankle joint.
  91. ncbi History and evolution in total ankle arthroplasty
    Nikolaos E Gougoulias
    Keele University School of Medicine, Thornburrow Drive, Hartshill, Stoke on Trent, Staffordshire, UK
    Br Med Bull 89:111-51. 2009
    ..The current study provides an overview of history and evolution in total ankle arthroplasty...
  92. ncbi Effects of fatigue due to contraction of evertor muscles on the ankle joint position sense in male soccer players
    Farshid Mohammadi
    Physiotherapy Department, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
    Am J Sports Med 38:824-8. 2010
    ..Moreover, deficits in ankle joint position sense (JPS) were seen in patients with a history of recurrent ankle sprains...
  93. ncbi Sagittal plane range of motion of the pediatric ankle joint: a reliability study
    Angela M Evans
    School of Health Science, Division of Health Sciences, University of South Australia, Adelaide, South Australia, Australia
    J Am Podiatr Med Assoc 96:418-22. 2006
    ..The results show that measures of ankle dorsiflexion in children are highly variable among examiners, and, in general, gastrocnemius range of motion is more reliable than soleal range of motion...
  94. ncbi Effect of foot orthotics on single- and double-limb dynamic balance tasks in patients with chronic ankle instability
    Amelia R Sesma
    Division of Athletic Training, Departement of Rehabilitation Sciences, University of Kentucky, Lexington, Kentucky 40536 0200, USA
    Foot Ankle Spec 1:330-7. 2008
    ..Orthotic intervention may prove beneficial for improving dynamic balance as measured by the SEBT in individuals with chronic ankle instability and may be a useful adjunct to clinical and sport interventions...
  95. ncbi Range of motion measurements: reference values and a database for comparison studies
    J M Soucie
    National Center on Birth Defects and Developmental Disabilities, Division of Blood Disorders, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
    Haemophilia 17:500-7. 2011
    ..Our study of ROM measurements taken by trained physical therapists on a large sample of healthy individuals revealed significant gender- and age-related variation that may be an important consideration in patient assessment...
  96. ncbi [Effect of limited joint mobility on plantar pressure in patients with type 1 diabetes mellitus]
    S Sauseng
    Ludwig Boltzmann Institut für Stoffwechselerkrankungen und Ernährung des Krankenhauses Wien Lainz, Wolkersbergenstrasse 1, A 1130 Wien
    Acta Med Austriaca 26:178-81. 1999
    ..The range of motion in diabetic patients was smaller at the talocrural and metatarsophalangealjoint 1 than in controls. Increase of plantar pressure can be caused by LJM because it impares the shock absorbing capability of the forefoot...
  97. pmc Modelling human musculoskeletal functional movements using ultrasound imaging
    Michael Peolsson
    School of Technology and Health, Royal Institute of Technology, Stockholm, Sweden
    BMC Med Imaging 10:9. 2010
    ..It is now possible to study skeletal muscles in real-time during activity...
  98. ncbi Effect of increased excursion of the ankle on the severity of acute eccentric contraction-induced strain injury in the gastrocnemius: an in vivo rat study
    Hongsun Song
    Nippon Sport Science University, Fukasawa, Tokyo, Japan
    Am J Sports Med 32:1263-9. 2004
    ..In this study, a minimally invasive model of acute strain injury was produced with a single eccentric contraction...
  99. ncbi Validation and precision of model-based radiostereometric analysis (MBRSA) for total ankle arthroplasty
    Jason Wai Yip Fong
    QEII Health Sciences Center, Halifax NS B3H 3A7, Canada
    Foot Ankle Int 32:1155-63. 2011
  100. ncbi [Injury of the ankle joint ligaments]
    M J Breitenseher
    Institut fur Radiologie, Landesklinikum Waldviertel Horn, Spitalgasse 10, 3580 Horn
    Radiologe 47:216-23. 2007
    ..Generally, for the evaluation of acute ankle injuries, MRI has developed to be the most important second-step procedure when projection radiology is non-diagnostic...
  101. ncbi Dynamic postural control but not mechanical stability differs among those with and without chronic ankle instability
    E A Wikstrom
    Biodynamics Research Laboratory, Department of Kinesiology, University of North Carolina at Charlotte, Charlotte, North Carolina 28223, USA
    Scand J Med Sci Sports 20:e137-44. 2010
    ..b>Ankle joint stiffness (N/m) was measured with an instrumented arthrometer during the anterior drawer test, and fibula ..

Research Grants62

    Jayaram Udupa; Fiscal Year: 2002
    ..The focus of this proposal is on the ankle joint and its ligament injuries...
  2. Characterizing Ankle Function During Sloped Locomotion For Prosthesis Development
    Alena Grabowski; Fiscal Year: 2012
    ..The proposed Career Development Award aims to characterize biological ankle joint function during walking and running on slopes in order to further develop advanced powered ankle-foot ..
  3. Rocker Shoes for Natural Immobilization of the Ankle during Single Limb Support
    Andrew H Hansen; Fiscal Year: 2012
    ..When walking with a walking cast or boot, the ankle joint still bears compressive load, but is limited in its ability to move...
  4. Foot Bone Motion in End Stage Ankle Arthritis Patients
    William R Ledoux; Fiscal Year: 2012
    ..systematically vary the alignment and quantify the effect on foot joint kinematics for ankle fusion and total ankle joint replacement in 30 cadavers each (60 total)...
    Janis J Weis; Fiscal Year: 2013 infection in the rear ankle joint. An early spike in Type I IFN, localized to joint tissue at 1 wk...
  6. Effect of Prosthetic Foot-Ankle Stiffness on Amputee Function
    GLENN KLUTE; Fiscal Year: 2011
    ..ESAR) feet are to provide mechanical energy for propulsion that was once provided by the muscles crossing the ankle joint. Clinicians are well aware that foot stiffness strongly influences the mechanics of amputee gait and prescribe ..
  7. In Vivo Imaging-Based Multiscale Modeling of Normal and Atrophied Human Lower Leg
    Shantanu Sinha; Fiscal Year: 2013
    ..Level, and (B) Multi- scale, multi-component Systems Level models will be used to predict strain distribution, ankle joint displacement and total joint force...
  8. The In Vivo Biomechanics of Lateral Ankle Ligament Injury and Reconstruction
    Louis E DeFrate; Fiscal Year: 2010
    ..measure the change in in vivo joint kinematics after lateral ankle ligament injuries, using the contralateral ankle joint as a control...
  9. Sensory-Targeted Ankle Rehabilitation Strategies (STARS)
    Erik A Wikstrom; Fiscal Year: 2012
    ..with CAI place a greater emphasis on cutaneous and musculotendinous receptors due to damage of the lateral ankle joint receptors...
  10. Neuropathic Gait, Irregular Surfaces and Fall Risk
    James K Richardson; Fiscal Year: 2012
    ..We hypothesize that feedback loop delay in ankle joint force output in response to a perturbation, related primarily to a DPN-associated impairment in rate of ..
  11. Neuromuscular and positional changes after ankle joint mobilizations
    Jay N Hertel; Fiscal Year: 2010
    ..This information will improve the understanding of the effects of joint mobilizations for both researchers and clinicians and potentially lead to advances in patient care for those suffering from musculoskeletal injuries. ..
  12. To reveal an etiological factor of functional ankle instability
    Wen Liu; Fiscal Year: 2013
    ..Surgical procedure is effective in restraining the ankle joint to reduce mechanical instability...
  13. NRI: Novel platform for rapid exploration of robotic ankle exoskeleton control st
    GREGORY STEPHEN SAWICKI; Fiscal Year: 2013
    ..these, however, have not yet been applied to powered orthoses or exoskeletons, and few have been applied at the ankle joint, despite its importance in locomotion...
    Sorin Siegler; Fiscal Year: 1990
    Traumatic injury of the ankle joint involving injury to the collateral ligaments is one of the most frequently occurring injuries at the lower limb. These injuries most frequently occur during a variety of athletic activities...
  15. Neural Mechanisms Underlying Acupuncture Analgesia
    Jin Chung; Fiscal Year: 2007
    ..This model gives a repeatable and quantifiable index of persistent pain in the ankle joint and the preliminary data show that acupuncture at a remote site produces long-lasting analgesia in this model...
  16. Robotic Prosthesis for Biomimetic Locomotion in Transfemoral Amputees
    Michael Goldfarb; Fiscal Year: 2010
    ..and up slopes, running, and jumping, all of which require significant net positive power at the knee joint, ankle joint, or both...
    Jack Engsberg; Fiscal Year: 1999
    ..the mechanics of the angle are modeled it becomes apparent that the surgeries may not have the same effect on ankle joint function. Thus, it is possible that one surgery may be more beneficial to a specific patient than another...
  18. Proteoglycan degradation and functional recovery after peripheral nerve injury
    ARTHUR ENGLISH; Fiscal Year: 2007
    ..of restitution of motor and sensory reinnervation of muscles and the recovery of normal muscle activity and ankle joint movements will be studied in rats after transection and surgical repair of the sciatic nerve...
  19. Computerized Orthotic Prescription System - COPS
    Toshiki Kobayashi; Fiscal Year: 2011
    ..The instrumented insole is designed to calculate the external moments acting on the ankle joint while wearing the AFO...
  20. Age-Related Differences in Cartilage OP-1
    Susan Chubinskaya; Fiscal Year: 2005
    ..and pathologically progressive (degenerative) aging by documenting changes in a joint that rarely develops OA (ankle joint) compared to changes in a joint with the higher prevalence of OA (knee joint)...
  21. Artificial Neural Network modelling for studying posture
    Ge Wu; Fiscal Year: 2001
    ..eye-target distance (distance from eye center to a visual target), head acceleration (both linear and angular), ankle joint rotation, ankle joint rotation speed, and ground reaction forces (both normal and shear) under feet...
  22. Muscular Properties and Balance Control in Older Adults
    GRAHAM CALDWELL; Fiscal Year: 2007
    ..This project will relate the properties of muscles controlling the ankle joint to balance performance in healthy young (21-35 yrs) and older (65-80 yrs) humans...
  23. Innate immunity and experimental Lyme arthritis
    Charles Brown; Fiscal Year: 2007
    ..This application focuses specifically on the KC-mediated recruitment and activation of neutrophils in the ankle joint during Bb infection...
    Diane Damiano; Fiscal Year: 2001
    ..evaluation to examine voluntary and involuntary muscle responses in children with CP at the knee and ankle joint throughout the range of motion and at different movement speeds...
  25. Developing an intelligent & portable stretching device
    Li Qun Zhang; Fiscal Year: 2002
    ..of this study are to develop a new portable rehabilitation device with intelligent control to stretch a ankle joint with spasticity and/or contracture repeatedly to reduce spasticity/contracture in neurologically impaired ..
    Theodore Oegema; Fiscal Year: 2007
    ..distinct differences in composition and metabolism that may predispose the knee joint to and/or protect the ankle joint from progressive degeneration...
    ROSS HAYS; Fiscal Year: 2001
    ..Change in impairment will be represented by electromechanical measurement of joint torque across the ankle joint using the Spasticity Measurement System...
  28. ABLE Kids II - Advanced Biofidelic Lower Extremity Kids Prosthesis II
    Michael Orendurff; Fiscal Year: 2013
    ..Specifically, ABLE Kids will result in a modular, microprocessor controlled, mesofluidic ankle joint that dynamically makes ankle control adjustments needed to optimize the dynamic function and safety of a child&..
  29. Computerized Orthotic Prescription System - COPS
    Toshiki Kobayashi; Fiscal Year: 2013
    ..The diagnostic AFO allows fine- tuning of stiffness and alignment and monitors ankle joint moment and motion...
  30. Pathogenesis-Prevention of Post-Traumatic OA
    Joseph Buckwalter; Fiscal Year: 2006
    ..The human ankle joint provides a unique opportunity for the study of post-traumatic OA because of the low risk of primary OA and the ..
  31. Reflexes during cat locomotion across speed and gait
    Young Hui Chang; Fiscal Year: 2004
    ..objective of the proposed research is to quantify the neuromechanical influence of sensory feedback from the ankle joint over a range of speeds and gaits during cat locomotion...
    Charles Saltzman; Fiscal Year: 2003
    ..Three-dimensional rate of ulcer healing will be measured with stereophotography and computerized image analysis techniques. ..
  33. Responses of the Ankle to Changes in Shoe Rocker Radius
    Andrew Hansen; Fiscal Year: 2008
    ..mechanisms could be developed to provide a more stable base to users during standing activities (locked ankle joint) and allowing the ankle-foot system to conform to an appropriate roll-over shape during walking (unlocked ankle ..
  34. Motor adaptation during human locomotion
    DANIEL FERRIS; Fiscal Year: 2005
    ..The powered orthoses will exert a torque about the ankle joint, altering normal lower limb kinematics if muscle activity patterns are not modified...
  35. Neurophysiological mechanisms underlying spasms in SCI
    Maria Knikou; Fiscal Year: 2004
    ..A future study can be concentrated on the potential reflex pathways underlying spasms and their relation to hip extension (end of stance phase) during assisted locomotion in incomplete SCI patients. ..
  36. Natural History of Muscular & Reflex Changes in Stroke
    MEHDI MIRBAGHERI; Fiscal Year: 2004
    ..The changes in passive and intrinsic stiffness are likely to be highly correlated with severity of spasticity and inversely correlated with recovery of function. ..
  37. Neuromechanical changes caused by stroke & stretching
    Li Qun Zhang; Fiscal Year: 2006
    ..The long-term goals are to provide effective, convenient, and low-cost treatments of spastic limbs in neurologically impaired patients with quantitative outcome evaluation in multiple aspects. ..
  38. Developing an intelligent & portable stretching device
    Li Qun Zhang; Fiscal Year: 2006
    ..of this study are to develop a new portable rehabilitation device with intelligent control to stretch an ankle joint with spasticity and/or contracture repeatedly to reduce spasticity/contracture in neurologically impaired ..
  39. ACL injury mechanisms & offaxis neuromuscular diagnosis & training
    Li Qun Zhang; Fiscal Year: 2010
  40. Brain Tumor Therapy: Radio Surgery vs. MR-Guided Ablat;
    Shantanu Sinha; Fiscal Year: 2005
    ..abstract_text> ..
  41. CCD detector
    Carol Muehleman; Fiscal Year: 2005
    ..Additionally, the optimized facility will greatly enhance the productivity of each user group as a consequence of detector efficiency. ..
    Bruce Beynnon; Fiscal Year: 2002
    ..on potential risk factors suggested by preliminary and other studies, demographic information, morphometry, ankle joint laxity, anatomic alignment of the foot and ankle, isokinetic ankle strength, postural stability, and muscle ..
  43. Influence of Ankle Motion on Bilateral Amputee Gait
    Steven Gard; Fiscal Year: 2004
    ..The results from this study will aid in identifying limitations in current prosthetic technology that inhibit normal patterns of walking in amputees. ..
    Bruce Beynnon; Fiscal Year: 2007
    ..Thus, one of our primary goals in developing this grant application is to do our part in improving, if not correcting, this problem. ..
  45. Individual muscle function in human walking
    CRAIG MCGOWAN; Fiscal Year: 2008
    ..Individual muscle function will be determined through electromyographic (EMG) analysis of experimental data and predictions from the simulations. [unreadable] [unreadable] [unreadable]..
  46. Sensory-enhanced motor training for hemiparetic arm/hand
    Wen Liu; Fiscal Year: 2004
    ..The effect of enhanced sensory inputs will be determined through the comparison of outcomes of the two training programs. ..
    Carol Muehleman; Fiscal Year: 2006
    ..Our long-term goal is to identify and localize initial phases of cartilage degeneration and follow their progression with the ultimate aim of monitoring disease progression and therapeutic interventions. ..
  48. Biomarkers of Cartilage Metabolism and OA
    Bruce Beynnon; Fiscal Year: 2008
    ..unreadable] [unreadable] [unreadable]..
  49. Tracking Fatigue-Related Changes in Motor Coordination
    JONATHAN DINGWELL; Fiscal Year: 2006
    ..We hope these efforts will one day help reduce the tremendous monetary and personal costs associated with these injuries [unreadable] [unreadable]..
    Li Qun Zhang; Fiscal Year: 2002
    ..Changes in the above properties induced by patellar malalignment and correction induced by patellar taping will be quantified using the above designs. ..
    Kathleen Sluka; Fiscal Year: 2003
    ..These proposed studies will help in the understanding and thus potential treatment of chronic muscle pain, including such conditions as fibromyalgia, myofascial pain and low back pain. ..
    RICHARD SHIELDS; Fiscal Year: 2003
    ..The benefits of this newly developed adaptive feedback controlled exercise may provide a standard that individuals with paralysis may use in an effort to maintain their musculoskeletal properties following paralysis. ..
  53. Functional Arterial Changes in Atherogenesis
    Iftikhar Kullo; Fiscal Year: 2007
    ..abstract_text> ..
    Harris Perlman; Fiscal Year: 2004
    ..This approach could lead to the development of a new therapeutic strategy for gene therapy in patients with rheumatoid arthritis. ..
  55. A Rodent Model for Locomotor Training with FNS
    Ranu Jung; Fiscal Year: 2004
    ..This locomotor training could also be combined with pharmacological intervention, tissue transplant, and neural repair therapies to determine if locomotor training can enhance the effectiveness of these therapies. ..
  56. Prenatal Exposure to Alcohol and Motor Timing Behavior
    Roger Simmons; Fiscal Year: 2005
    ..abstract_text> ..
  57. Seniors Health and Activity Research Program Pilot (SHARP-P)
    Mark Espeland; Fiscal Year: 2008
    ..unreadable] [unreadable] [unreadable]..
  58. Multi-Joint Sensorimotor Dysfunction of the Stroke Arm
    BRIAN SCHMIT; Fiscal Year: 2008
    ..In addition, conventional therapies may be applied more efficiently or effectively using the principles that will be demonstrated by this study. ..
  59. Mechanical Plasticity in Locomotion with Age
    PAUL DE VITA; Fiscal Year: 2008
    ..This framework provides a basis for designing exercise and rehabilitation programs for aged individuals with mobility impairments. [unreadable] [unreadable]..
  60. Locomotor Dynamics of Muscle Function
    Andrew Biewener; Fiscal Year: 2007
    ..Consequently, the proposed studies will have value for developing more effective physical, occupational and rehabilitative therapies, as well as for sports and exercise training, and prosthetics design. ..
  61. Predicting Recurrence of Low Back Pain - Study #2
    James Thomas; Fiscal Year: 2007
    ..Our long-term goal is to use this information to develop an assessment protocol that can be easily adopted into clinical practice. [unreadable] [unreadable]..
    Harold Kitaoka; Fiscal Year: 2001
    ..abstract_text> ..