torque

Summary

Summary: About an axis, the product of a force and the distance of its line of action from the axis. (NASA Thesaurus, 1994)

Top Publications

  1. ncbi Magnetic torque tweezers: measuring torsional stiffness in DNA and RecA-DNA filaments
    Jan Lipfert
    Department of BioNanoScience, Kavli Institute of Nanoscience, Faculty of Applied Sciences, Delft University of Technology, Delft, The Netherlands
    Nat Methods 7:977-80. 2010
  2. ncbi Friction and torque govern the relaxation of DNA supercoils by eukaryotic topoisomerase IB
    Daniel A Koster
    Kavli Institute of Nanoscience, Faculty of Applied Sciences, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
    Nature 434:671-4. 2005
  3. ncbi Correlation between the knee adduction torque and medial contact force for a variety of gait patterns
    Dong Zhao
    Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL, USA
    J Orthop Res 25:789-97. 2007
  4. ncbi Torque generation and elastic power transmission in the rotary F(O)F(1)-ATPase
    Wolfgang Junge
    Department of Biophysics, University of Osnabruck, Barbarastrasse 11, 49076 Osnabruck, Germany
    Nature 459:364-70. 2009
  5. ncbi Structural transitions and elasticity from torque measurements on DNA
    Zev Bryant
    Department of Molecular and Cell Biology, Department of Physics, Howard Hughes Medical Institute, University of California, Berkeley, California 94720, USA
    Nature 424:338-41. 2003
  6. ncbi Effect of cortical bone thickness and implant placement torque on stability of orthodontic mini-implants
    Mitsuru Motoyoshi
    Department of Orthodontics, Nihon University School of Dentistry, Tokyo, Japan
    Int J Oral Maxillofac Implants 22:779-84. 2007
  7. ncbi Reliability and validity of the Biodex system 3 pro isokinetic dynamometer velocity, torque and position measurements
    Joshua M Drouin
    Department of Public Health, Georgia Southern University, PO Box 8076, Statesboro, GA 30460 8076, USA
    Eur J Appl Physiol 91:22-9. 2004
  8. ncbi Torque-EMG-velocity relationship in female workers with chronic neck muscle pain
    Lars L Andersen
    National Research Centre for the Working Environment, Lersø Parkallé 105, DK 2100 Copenhagen, Denmark
    J Biomech 41:2029-35. 2008
  9. ncbi Failed excitability of spinal motoneurons induced by prolonged running exercise
    S Racinais
    Faculté des Sciences du Sports, Laboratoire EA 2991, Efficience et Déficience Motrices, Universite de Montpellier 1, 700 Avenue du Pic Saint Loup, 34090 Montpellier, France
    J Neurophysiol 97:596-603. 2007
  10. pmc The maximum number of torque-generating units in the flagellar motor of Escherichia coli is at least 11
    Stuart W Reid
    Clarendon Laboratory, Department of Physics, University of Oxford, South Parks Road, Oxford OX1 3PU, United Kingdom
    Proc Natl Acad Sci U S A 103:8066-71. 2006

Research Grants

  1. EMG Biofeedback with AMES
    Paul Cordo; Fiscal Year: 2007
  2. Characterizing Ankle Function During Sloped Locomotion For Prosthesis Development
    Alena Grabowski; Fiscal Year: 2012
  3. Somatosensory feedback controlling a neuroprosthesis
    Douglas J Weber; Fiscal Year: 2010
  4. Mechanisms of Viral DNA Packaging
    CARLOS JOSE BUSTAMANTE; Fiscal Year: 2013
  5. Axial Flow Effects in Proximal Tubule
    TONG WANG WANG; Fiscal Year: 2012
  6. STIMULATION-AUGMENTED EXERCISE AND NEUROMOTOR THERAPY
    Eric C Hartman; Fiscal Year: 2010
  7. In Vivo Imaging-Based Multiscale Modeling of Normal and Atrophied Human Lower Leg
    Shantanu Sinha; Fiscal Year: 2013
  8. EMG Biofeedback with AMES
    Paul Cordo; Fiscal Year: 2010
  9. EFFECT OF NEURAL CONSTRAINTS ON MOVEMENT IN STROKE
    Julius P Dewald; Fiscal Year: 2013
  10. Fo Motor Mechanisms that Power FoF1 ATP Synthesis
    Wayne D Frasch; Fiscal Year: 2013

Detail Information

Publications336 found, 100 shown here

  1. ncbi Magnetic torque tweezers: measuring torsional stiffness in DNA and RecA-DNA filaments
    Jan Lipfert
    Department of BioNanoScience, Kavli Institute of Nanoscience, Faculty of Applied Sciences, Delft University of Technology, Delft, The Netherlands
    Nat Methods 7:977-80. 2010
    We introduce magnetic torque tweezers, which enable direct single-molecule measurements of torque...
  2. ncbi Friction and torque govern the relaxation of DNA supercoils by eukaryotic topoisomerase IB
    Daniel A Koster
    Kavli Institute of Nanoscience, Faculty of Applied Sciences, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
    Nature 434:671-4. 2005
    ..The number of supercoils removed per step follows an exponential distribution. The enzyme is found to be torque-sensitive, as the mean number of supercoils per step increases with the torque stored in the DNA...
  3. ncbi Correlation between the knee adduction torque and medial contact force for a variety of gait patterns
    Dong Zhao
    Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL, USA
    J Orthop Res 25:789-97. 2007
    The external knee adduction torque has been proposed as a surrogate measure for medial compartment load during gait...
  4. ncbi Torque generation and elastic power transmission in the rotary F(O)F(1)-ATPase
    Wolfgang Junge
    Department of Biophysics, University of Osnabruck, Barbarastrasse 11, 49076 Osnabruck, Germany
    Nature 459:364-70. 2009
    ..Attempts to understand in detail the mechanisms of torque generation in this simple and robust system have been both aided and complicated by a wealth of sometimes ..
  5. ncbi Structural transitions and elasticity from torque measurements on DNA
    Zev Bryant
    Department of Molecular and Cell Biology, Department of Physics, Howard Hughes Medical Institute, University of California, Berkeley, California 94720, USA
    Nature 424:338-41. 2003
    ..However, a complete description of DNA mechanics must also consider the effects of torque, a quantity that has hitherto not been directly measured in micromanipulation experiments...
  6. ncbi Effect of cortical bone thickness and implant placement torque on stability of orthodontic mini-implants
    Mitsuru Motoyoshi
    Department of Orthodontics, Nihon University School of Dentistry, Tokyo, Japan
    Int J Oral Maxillofac Implants 22:779-84. 2007
    ..distance (horizontal space), distance from alveolar crest to the bottom of maxillary sinus (vertical space) at the prepared site, and implant placement torque and the success rate of mini-implants placed for orthodontic anchorage.
  7. ncbi Reliability and validity of the Biodex system 3 pro isokinetic dynamometer velocity, torque and position measurements
    Joshua M Drouin
    Department of Public Health, Georgia Southern University, PO Box 8076, Statesboro, GA 30460 8076, USA
    Eur J Appl Physiol 91:22-9. 2004
    This study quantitatively assessed the mechanical reliability and validity of position, torque and velocity measurements of the Biodex System 3 isokinetic dynamometer...
  8. ncbi Torque-EMG-velocity relationship in female workers with chronic neck muscle pain
    Lars L Andersen
    National Research Centre for the Working Environment, Lersø Parkallé 105, DK 2100 Copenhagen, Denmark
    J Biomech 41:2029-35. 2008
    ..The main findings were that shoulder abduction torque (at -60 and 60 degrees s(-1)) and trapezius EMG amplitude (at -60, 0 and 60 degrees s(-1)) were significantly ..
  9. ncbi Failed excitability of spinal motoneurons induced by prolonged running exercise
    S Racinais
    Faculté des Sciences du Sports, Laboratoire EA 2991, Efficience et Déficience Motrices, Universite de Montpellier 1, 700 Avenue du Pic Saint Loup, 34090 Montpellier, France
    J Neurophysiol 97:596-603. 2007
    ..During MVC, the torque significantly decreased (P < 0...
  10. pmc The maximum number of torque-generating units in the flagellar motor of Escherichia coli is at least 11
    Stuart W Reid
    Clarendon Laboratory, Department of Physics, University of Oxford, South Parks Road, Oxford OX1 3PU, United Kingdom
    Proc Natl Acad Sci U S A 103:8066-71. 2006
    b>Torque is generated in the rotary motor at the base of the bacterial flagellum by ion translocating stator units anchored to the peptidoglycan cell wall...
  11. ncbi Measurement of the torque on a single stretched and twisted DNA using magnetic tweezers
    Francesco Mosconi
    LPS ENS, UMR 8550 CNRS, 24, rue Lhomond, 75231 Paris Cedex 05, France
    Phys Rev Lett 102:078301. 2009
    We deduced the torque applied on a single stretched and twisted DNA by integrating the change in the molecule's extension with respect to force as it is coiled...
  12. pmc Position-dependent torque coupling and associated muscle activation in the hemiparetic upper extremity
    Michael D Ellis
    Department of Physical Therapy and Human Movement Sciences, Northwestern University, Chicago, IL 60611, USA
    Exp Brain Res 176:594-602. 2007
    Previous studies have demonstrated abnormal joint torque coupling and associated muscle coactivations of the upper extremity in individuals with unilateral stroke...
  13. ncbi Proprioception and muscle torque deficits in children with hypermobility syndrome
    F Fatoye
    Professional Registration Department, School of Health, Psychology and Social Care, Manchester Metropolitan University, Elizabeth Gaskell Campus, Hathersage Road, Manchester M130JA, UK
    Rheumatology (Oxford) 48:152-7. 2009
    ..It is therefore uncertain as to what sensorimotor deficits are present in children with HMS. This study investigated knee joint proprioception and muscle torque in healthy children and those with HMS.
  14. pmc Direct measurement of human ankle stiffness during quiet standing: the intrinsic mechanical stiffness is insufficient for stability
    Ian D Loram
    Applied Physiology Research Group, School of Sport and Exercise Sciences, University of Birmingham, Birmingham B15 2TT, UK
    J Physiol 545:1041-53. 2002
    ..The stiffness was substantially constant, increasing only slightly with ankle torque. This stiffness cannot be neurally regulated in quiet standing...
  15. pmc Underwound DNA under tension: structure, elasticity, and sequence-dependent behaviors
    Maxim Y Sheinin
    Department of Physics, Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853, USA
    Phys Rev Lett 107:108102. 2011
    ..By directly measuring force, extension, torque, and angle of DNA, we determined the structural and elastic parameters of torsionally melted DNA...
  16. 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...
  17. pmc Biomechanics and strength of manual wheelchair users
    Fabrisia Ambrosio
    Department of Rehabilitation Science and Technology, University of Pittsburgh, Pennsylvania, USA
    J Spinal Cord Med 28:407-14. 2005
    ....
  18. ncbi EMG activity of trunk muscles and torque output during isometric axial rotation exertion: a comparison between back pain patients and matched controls
    Joseph K F Ng
    Department of Physiotherapy, The University of Queensland, Australia
    J Orthop Res 20:112-21. 2002
    ..present study aimed to examine electromyographic (EMG) activity of abdominal and back muscles as well as triaxial torque output during isometric axial rotation at different exertion levels in back pain patients and matched controls...
  19. ncbi Activation impairment alters muscle torque-velocity in the knee extensors of persons with post-stroke hemiparesis
    David J Clark
    Department of Rehabilitation Sciences, Boston University, Boston, MA, USA
    Clin Neurophysiol 117:2328-37. 2006
    ..To elucidate mechanisms of impaired force production in post-stroke hemiparesis...
  20. pmc Viscoelastic dynamics of actin filaments coupled to rotary F-ATPase: angular torque profile of the enzyme
    O Panke
    Division of Biophysics, University of Osnabruck, D 49069 Osnabruck, Germany
    Biophys J 81:1220-33. 2001
    ..10(-26) Nm(2)) to gauge the angular profile of the output torque at F(O) during ATP hydrolysis by F(1) (see theoretical companion article (. Biophys. J. 81:1234-1244.))...
  21. ncbi Effect of age on muscle functions investigated with surface electromyography
    Roberto Merletti
    Laboratorio di Ingegneria del Sistema Neuromuscolare, Dipartimento di Elettronica, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino 10129, Italy
    Muscle Nerve 25:65-76. 2002
    ..The maximal torque developed and the rate of decrease (slope) of spectral variables and conduction velocity (CV) were statistically ..
  22. ncbi Nanofabricated quartz cylinders for angular trapping: DNA supercoiling torque detection
    Christopher Deufel
    Department of Physics, Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853, USA
    Nat Methods 4:223-5. 2007
    We designed and created nanofabricated quartz cylinders well suited for torque application and detection in an angular optical trap...
  23. ncbi Accuracy of a manual torque application device for morse-taper implants: a technical note
    Murat C Cehreli
    Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
    Int J Oral Maxillofac Implants 19:743-8. 2004
    The objective of this study was to compare torques applied by new and used manual torque devices for Morse-taper implants.
  24. ncbi Isometric muscle torque in children 5 to 15 years of age: normative data
    Meta Nyström Eek
    Department of Paediatrics, Queen Silvia Children s Hospital, Goteborg University, Sweden
    Arch Phys Med Rehabil 87:1091-9. 2006
    To establish reference values of arm and leg muscle strength as measured by isometric torque production in healthy children.
  25. ncbi Differences in size, strength, and power of upper and lower body muscle groups in young and older men
    Darren G Candow
    87 Campus Drive, College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada S7N 5B2
    J Gerontol A Biol Sci Med Sci 60:148-56. 2005
    We compared muscle thickness, torque, normalized torque (torque/muscle thickness), and power at 1.05 rad/s and 3...
  26. pmc A quantitative assessment of torque-transducer models for magnetoreception
    Michael Winklhofer
    Department of Earth and Environmental Sciences, Ludwig Maximilians University, 80333 Munich, Germany
    J R Soc Interface 7:S273-89. 2010
    ..magnetic particles have remanence or anisotropic magnetic susceptibility, an external magnetic field will exert a torque and may physically twist them...
  27. ncbi Early endosseous integration enhanced by dual acid etching of titanium: a torque removal study in the rabbit
    P R Klokkevold
    Division of Associated Specialties, Section of Periodontics, UCLA School of Dentistry, Los Angeles, CA 90095, USA
    Clin Oral Implants Res 12:350-7. 2001
    Textured implant surfaces are thought to enhance endosseous integration. Torque removal forces have been used as a biomechanical measure of anchorage, or endosseous integration, in which the greater forces required to remove implants may ..
  28. ncbi Osseointegration enhanced by chemical etching of the titanium surface. A torque removal study in the rabbit
    P R Klokkevold
    Section of Periodontics, UCLA School of Dentistry 90095 1668, USA
    Clin Oral Implants Res 8:442-7. 1997
    Roughened implant surfaces are thought to enhance osseointegration. Torque removal forces have been used as a biomechanical measure of anchorage or osseointegration in which the greater forces required to remove implants may be ..
  29. ncbi The influence of predicted arm biomechanics on decision making
    Ignasi Cos
    Departement de Physiologie, Universite de Montreal, Montreal, QC, Canada
    J Neurophysiol 105:3022-33. 2011
    ..This reveals that the nervous system can predict biomechanical properties of potential actions before movement onset and that these predictions, in addition to purely abstract criteria, may influence the decision-making process...
  30. ncbi Deficits in eccentric versus concentric torque in children with spastic cerebral palsy
    D L Damiano
    Department of Orthopaedics, University of Virginia, Charlottesville, USA
    Med Sci Sports Exerc 33:117-22. 2001
    ..to determine whether ambulatory children with spastic cerebral palsy (CP) had abnormal isokinetic eccentric peak torque values at the knee and ankle, and to gain further insights on the influence of spasticity on voluntary force ..
  31. ncbi Accuracy of friction-style and spring-style mechanical torque limiting devices for dental implants
    Mark C Vallee
    Division of Prosthodontics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN 55455, USA
    J Prosthet Dent 100:86-92. 2008
    Accurate delivery of torque to implant prosthetic screws is critical to generate ideal preload in the screw joint and offer protection against screw loosening...
  32. ncbi Muscle contributions to support and progression over a range of walking speeds
    May Q Liu
    Department of Mechanical Engineering, Clark Center, Room S 321, Stanford University, Mail Code 5450, 318 Campus Drive, Stanford CA 94305 5450, USA
    J Biomech 41:3243-52. 2008
    ..This study provides reference data for muscle contributions to support and progression over a wide range of walking speeds and highlights the importance of walking speed when evaluating muscle function...
  33. ncbi Contractile muscle volume and agonist-antagonist coactivation account for differences in torque between young and older women
    Andrea Macaluso
    Applied Physiology Group, Strathclyde Institute for Biomedical Science, University of Strathclyde, 76 Southbrae Drive, Glasgow G13 1PP, United Kingdom
    Muscle Nerve 25:858-63. 2002
    ..separately from the intramuscular noncontractile tissue by magnetic resonance imaging, and maximum isometric torque was measured in the knee extensors and flexors of 10 young (22.8 +/- 5.7 years) and 10 older (69.5 +/- 2...
  34. ncbi Deficits in the coordination of multijoint arm movements in patients with hemiparesis: evidence for disturbed control of limb dynamics
    R F Beer
    Sensory Motor Performance Program, Rehabilitation Institute of Chicago, IL 60611, USA
    Exp Brain Res 131:305-19. 2000
    ..An inverse dynamics analysis revealed an abnormal spatial tuning of the muscle torque at the elbow used to initiate movements of the paretic limb...
  35. pmc Anticipatory planning and control of grasp positions and forces for dexterous two-digit manipulation
    Qiushi Fu
    Department of Kinesiology, Arizona State University, Tempe, Arizona 85287 0404, USA
    J Neurosci 30:9117-26. 2010
    ..These results are discussed in the context of motor equivalence and sensorimotor integration of grasp kinematics and kinetics...
  36. pmc Structure of the torque ring of the flagellar motor and the molecular basis for rotational switching
    Lawrence K Lee
    Structural and Computational Biology Division, The Victor Chang Cardiac Research Institute, Lowy Packer Building, 405 Liverpool Street, Darlinghurst, New South Wales 2010, Australia
    Nature 466:996-1000. 2010
    ..uses the potential energy from an electrochemical gradient of cations across the cytoplasmic membrane to generate torque. A rapid switch from anticlockwise to clockwise rotation determines whether a bacterium runs smoothly forward or ..
  37. ncbi Optical torque wrench: angular trapping, rotation, and torque detection of quartz microparticles
    Arthur La Porta
    Department of Physics, Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853, USA
    Phys Rev Lett 92:190801. 2004
    We describe an apparatus that can measure the instantaneous angular displacement and torque applied to a quartz particle which is angularly trapped...
  38. ncbi Bacterial flagellar motor
    Yoshiyuki Sowa
    Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, UK
    Q Rev Biophys 41:103-32. 2008
    ..size and complexity of the motor, much remains to be discovered, in particular, the structural details of the torque-generating mechanism...
  39. ncbi Endpoint stiffness of the arm is directionally tuned to instability in the environment
    David W Franklin
    National Institute of Information and Communications Technology, Keihanna Science City, Kyoto 619 0288, Japan
    J Neurosci 27:7705-16. 2007
    ..Furthermore, it supports the idea that the CNS incorporates an impedance controller that acts to ensure stability, reduce movement variability, and reduce metabolic cost...
  40. ncbi Calf muscle-tendon properties and postural balance in old age
    Gladys L Onambele
    Institute for Biophysical and Clinical Research into Human Movement, Manchester Metropolitan University, Hassall Rd, Stoke on Trent, ST7 2HL UK
    J Appl Physiol (1985) 100:2048-56. 2006
    ..69<r2<0.90) postures only, indicating that the age-related changes in muscle-tendon characteristics may explain the majority of the variance in balance performance during tasks more difficult than habitual bipedal stance...
  41. ncbi Large index-fingertip forces are produced by subject-independent patterns of muscle excitation
    F J Valero-Cuevas
    Rehabilitation Research and Development Center, Veterans Affairs Palo Alto Health Care System, CA 94304 1200, USA
    J Biomech 31:693-703. 1998
    ....
  42. ncbi Quantification of pronator quadratus contribution to isometric pronation torque of the forearm
    Mark O McConkey
    Department of Orthopaedics, Mechanical Engineering, and Physical Medicine and Rehabilitation, University of British Columbia, Vancouver, British Columbia, Canada
    J Hand Surg Am 34:1612-7. 2009
    The contribution of the pronator quadratus (PQ) muscle in generation of pronation torque has not been determined...
  43. ncbi Corticospinal-evoked responses in lower limb muscles during voluntary contractions at varying strengths
    T Oya
    School of Human Movement Studies, University of Queensland, Brisbane, QLD 4072, Australia
    J Appl Physiol (1985) 105:1527-32. 2008
    ..stimulation over the motor cortex and cervicomedullary junction during voluntary plantar flexions with the torque ranging from 0 to 100% of a maximal voluntary contraction...
  44. ncbi Effects of ageing on motor unit activation patterns and reflex sensitivity in dynamic movements
    J Kallio
    Neuromuscular Research Center, Department of Biology of Physical Activity, University of Jyvaskyla, Finland
    J Electromyogr Kinesiol 20:590-8. 2010
    ....
  45. ncbi The rotary motor of bacterial flagella
    Howard C Berg
    Department of Molecular and Cellular Biology, Harvard University, 16 Divinity Avenue, Cambridge, Massachusetts 02138, USA
    Annu Rev Biochem 72:19-54. 2003
    ..A motor is about 45 nm in diameter and is assembled from about 20 different kinds of parts. It develops maximum torque at stall but can spin several hundred Hz...
  46. ncbi Reduced plantarflexor specific torque in the elderly is associated with a lower activation capacity
    Christopher I Morse
    Centre for Biophysical and Clinical Research into Human Movement CRM, Manchester Metropolitan University, Hassall Road, Alsager, Cheshire, ST7 2HL, UK
    Eur J Appl Physiol 92:219-26. 2004
    Previous studies have reported a decrease in muscle torque per cross-sectional area in old age...
  47. ncbi The internal model and the leading joint hypothesis: implications for control of multi-joint movements
    Natalia Dounskaia
    Department of Kinesiology, Arizona State University, P O Box 870404, Tempe, AZ 85287 0404, USA
    Exp Brain Res 166:1-16. 2005
    ....
  48. ncbi An EMG-driven musculoskeletal model to estimate muscle forces and knee joint moments in vivo
    David G Lloyd
    School of Human Movement and Exercise Science, University of Western Australia, Perth, 35 Stirling Highway, Crawley, WA 6009, Australia
    J Biomech 36:765-76. 2003
    ..Changing the muscle model to one that is more physiologically correct produced better predictions. The modelling method presented represents a good way to estimate in vivo muscle forces during movement tasks...
  49. ncbi Measurement and reproducibility of strength and voluntary activation of lower-limb muscles
    Gabrielle Todd
    Prince of Wales Medical Research Institute, Barker St, Randwick, New South Wales 2031, Australia
    Muscle Nerve 29:834-42. 2004
    ..We designed a multipurpose system to assess the variability and reproducibility of isometric torque measurements obtained during maximal voluntary efforts of the knee flexor, knee extensor, ankle dorsiflexor, and ..
  50. ncbi Scaling of plantarflexor muscle activity and postural time-to-contact in response to upper-body perturbations in young and older adults
    Christopher J Hasson
    Department of Kinesiology, University of Massachusetts Amherst, Amherst, MA, USA
    Exp Brain Res 196:413-27. 2009
    ..There were no differences in the maximum plantarflexor torque responses, suggesting that the maximum torque capabilities of the older subjects were not limiting factors...
  51. ncbi Task differences with the same load torque alter the endurance time of submaximal fatiguing contractions in humans
    Sandra K Hunter
    Department of Kinesiology and Applied Physiology, University of Colorado, Boulder, Colorado 80309 0354, USA
    J Neurophysiol 88:3087-96. 2002
    ..during two types of submaximal fatiguing contractions that required each subject to exert the same net muscle torque in the two tasks...
  52. ncbi Effect of postactivation potentiation on the maximal voluntary isokinetic concentric torque in humans
    Naokazu Miyamoto
    Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
    J Strength Cond Res 25:186-92. 2011
    The purpose of this study was to examine whether postactivation potentiation (PAP) influences dynamic torque development in humans...
  53. ncbi Multisensory control of human upright stance
    C Maurer
    Neurological University Clinic, Neurozentrum Breisacher Str 64, 79106, Freiburg, Germany
    Exp Brain Res 171:231-50. 2006
    ..The perturbing stimuli consisted of either platform tilts or external torque produced by force-controlled pull of the subjects' body on a stationary platform...
  54. ncbi The association between negative muscle work and pedaling rate
    R R Neptune
    Human Performance Laboratory, University of Calgary, Canada
    J Biomech 32:1021-6. 1999
    ..of this research was to use a pedal force decomposition approach to quantify the amount of negative muscular crank torque generated by a group of competitive cyclists across a range of pedaling rates...
  55. pmc High domain wall velocities via spin transfer torque using vertical current injection
    Peter J Metaxas
    Unité Mixte de Physique CNRS Thales and Université Paris Sud 11, 1 ave A Fresnel, 91767 Palaiseau, France
    Sci Rep 3:1829. 2013
    ..These processes are traditionally driven by spin transfer torque due to lateral injection of spin polarized current through a ferromagnetic nanostrip...
  56. ncbi Time to failure of a sustained contraction is predicted by target torque and initial electromyographic bursts in elbow flexor muscles
    Thorsten Rudroff
    Department of Integrative Physiology, University of Colorado, Carlson 202G, 354 UCB, Boulder, Colorado 80309 0354, USA
    Muscle Nerve 35:657-66. 2007
    ..the amplitude of bursts in the brachioradialis during the first 20% of the contraction, and the target torque. Subjects who could sustain the task longer exhibited greater initial (first 20% of contraction) electromyographic ..
  57. 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...
  58. ncbi A comparison between insertion torque and resonance frequency in the assessment of torque capacity and primary stability of Brånemark system implants
    I Turkyilmaz
    Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
    J Oral Rehabil 33:754-9. 2006
    The aim of this study was to determine primary stability and insertion torque of Brånemark System implants placed in the anterior mandible, and to evaluate a possible correlation between primary stability and insertion torque...
  59. ncbi Relationships between bone density values from cone beam computed tomography, maximum insertion torque, and resonance frequency analysis at implant placement: a pilot study
    Maria Ángeles Fuster-Torres
    Master of Oral Surgery and Implantology, Valencia University Medical and Dental School, Valencia, Spain
    Int J Oral Maxillofac Implants 26:1051-6. 2011
    ..was to determine bone density in designated implant sites using cone beam computed tomography (CBCT) and to evaluate possible correlations between age, gender, insertion torque measurements, and resonance frequency analysis (RFA) values.
  60. ncbi Adaptations in the activation of human skeletal muscle induced by short-term isometric resistance training
    Christopher Del Balso
    Kinesiology and Health Science, Faculty of Science and Engineering, York University, Toronto, Ontario, Canada
    J Appl Physiol 103:402-11. 2007
    ..After 4 weeks, MVC torque increased 20.0 +/- 13.9% (mean +/- SD) in the trained group...
  61. ncbi A comparison of torque expression between stainless steel, titanium molybdenum alloy, and copper nickel titanium wires in metallic self-ligating brackets
    Amy Archambault
    Orthodontic Graduate Program, School of Dentistry, University of Alberta, Edmonton, AB, Canada
    Angle Orthod 80:884-9. 2010
    The force moment providing rotation of the tooth around the x-axis (buccal-lingual) is referred to as torque expression in orthodontic literature. Many factors affect torque expression, including the wire material characteristics...
  62. ncbi Chemomechanical coupling mechanism of F(1)-ATPase: catalysis and torque generation
    Rikiya Watanabe
    Department of Applied Chemistry, School of Engineering, The University of Tokyo, Tokyo 113 8656, Japan
    FEBS Lett 587:1030-5. 2013
    ..The energy conversion mechanism of F1 elucidated from single-molecule studies provides us with important insights into the operating principles underlying molecular motors...
  63. ncbi Accuracy of mechanical torque-limiting devices for implants
    Jon P Standlee
    Division of Restorative Dentistry, University of California Los Angeles School of Dentistry, Center for the Health Sciences, 90095, USA
    Int J Oral Maxillofac Implants 17:220-4. 2002
    To examine the accuracy of 3 mechanical torque wrenches.
  64. ncbi Assessment of the reliability of central and peripheral fatigue after sustained maximal voluntary contraction of the quadriceps muscle
    Nicolas Place
    INSERM ERM 207 Motricité Plasticité, Faculte des Sciences du Sport, Universite de Bourgogne, BP 27877, 21078 Dijon, France
    Muscle Nerve 35:486-95. 2007
    ..were used before and immediately after the fatiguing contraction to investigate the reliability of MVC torque, central activation, and peripheral variables (M-wave properties, peak twitch, peak doublet) within and between ..
  65. ncbi The sway-density curve and the underlying postural stabilization process
    Marco Jacono
    Center of Bioengineering, Hospital La Colletta, Arenzano, Italy
    Motor Control 8:292-311. 2004
    ..the relationship between SDC and the underlying postural stabilization process by decomposing the total ankle torque into three components: a tonic component (over 69 & of the total torque), an elastic torque caused by ankle ..
  66. ncbi Torque-induced slip of the rotary motor F1-ATPase
    Akilan Palanisami
    Department of Physics, Faculty of Science and Engineering, Waseda University, Okubo 3 4 1, Shinjuku ku, Tokyo 169 8555, Japan
    Nano Lett 10:4146-9. 2010
    ..We measure the torque profile of F(1) in both ATP hydrolysis and synthesis directions using a novel magnetic nanorod assay...
  67. ncbi Bone tissue responses to surface-modified zirconia implants: A histomorphometric and removal torque study in the rabbit
    Lars Sennerby
    Department of Biomaterials, Institute for Surgical Sciences, Sahlgrenska Academy, Goteborg University, Goteborg, Sweden
    Clin Implant Dent Relat Res 7:S13-20. 2005
    ..Little is known about how surface modification influences the stability and bone tissue response to zirconia implants...
  68. ncbi Effect of exercise-induced muscle damage on neuromuscular function of the quadriceps muscle
    M Behrens
    Sport Science, University of Rostock, Germany
    Int J Sports Med 33:600-6. 2012
    ..of agonist muscle activation and contractile properties (CP) to changes in isometric maximum voluntary torque (iMVT)...
  69. ncbi Residues of the cytoplasmic domain of MotA essential for torque generation in the bacterial flagellar motor
    J Zhou
    Department of Biology, University of Utah, Salt Lake City, UT 84112, USA
    J Mol Biol 273:428-39. 1997
    ..work suggests that cytoplasmically located parts of MotA and/or MotB might be present at the active site for torque generation in the motor...
  70. ncbi Accuracy of mechanical torque devices for implants used in Brazilian dental offices
    Gildo Coelho Santos
    Department of Restorative Dentistry, University of Western Ontario, Ontario, Canada
    Int J Prosthodont 24:38-9. 2011
    The purpose of this study was to determine the accuracy of mechanical torque devices in delivering target torque values in dental offices in Salvador, Brazil...
  71. pmc Manipulation after object rotation reveals independent sensorimotor memory representations of digit positions and forces
    Wei Zhang
    Department of Kinesiology, Arizona State University, Tempe, AZ 85287 0404, USA
    J Neurophysiol 103:2953-64. 2010
    ..The differential improvement in modulating these two variables supports the notion of independent memory representations of kinematics and kinetics and is discussed in relation to neural mechanisms underlying visuomotor transformations...
  72. 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
    ..The torque produced by the dorsiflexors and the surface electromyogram (EMG) from the tibialis anterior and the soleus were ..
  73. ncbi Recommended placement torque when tightening an orthodontic mini-implant
    Mitsuru Motoyoshi
    Department of Orthodontics, Division of Clinical Research, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
    Clin Oral Implants Res 17:109-14. 2006
    To determine an adequate placement torque for obtaining a better success rate of mini-implants that are screwed into the buccal alveolar bone of the posterior region as an anchor for orthodontic treatment, implant placement torque (IPT) ..
  74. ncbi The effects of electrode placement and innervation zone location on the electromyographic amplitude and mean power frequency versus isometric torque relationships for the vastus lateralis muscle
    Travis W Beck
    Department of Nutrition and Health Sciences, Human Performance Laboratory, 104K Ruth Leverton Hall, University of Nebraska Lincoln, Lincoln, NE 68583, USA
    J Electromyogr Kinesiol 18:317-28. 2008
    ..investigation were to examine the effects of electrode placement and innervation zone (IZ) location on: (a) the torque-related patterns of responses for absolute and normalized electromyographic (EMG) amplitude and mean power ..
  75. ncbi Calibration of the optical torque wrench
    Francesco Pedaci
    Department of BioNanoScience, Kavli Institute of Nanoscience, Faculty of Applied Sciences, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
    Opt Express 20:3787-802. 2012
    The optical torque wrench is a laser trapping technique that expands the capability of standard optical tweezers to torque manipulation and measurement, using the laser linear polarization to orient tailored microscopic birefringent ..
  76. ncbi Lever-arm and mini-implant system for anterior torque control during retraction in lingual orthodontic treatment
    Ryoon Ki Hong
    Chairman, Department of Orthodontics, Chong A Dental Hospital, Seoul, South Korea
    Angle Orthod 75:129-41. 2005
    Anterior torque control during retraction is difficult to achieve with lingual orthodontic treatment...
  77. ncbi Decrease of knee flexion torque in patients with ACL reconstruction: combined analysis of the architecture and function of the knee flexor muscles
    Yukiko Makihara
    Department of Life Sciences, Graduate School of Arts and Science, University of Tokyo, Meguro ku, Tokyo 153 8902, Japan
    Knee Surg Sports Traumatol Arthrosc 14:310-7. 2006
    A decrease of deep knee flexion torque after anterior cruciate ligament (ACL) reconstruction, using a semitendinosus (and gracilis) tendon, has been reported. However, the cause of this weakness remains controversial...
  78. ncbi Influence of manual preflaring and torque on the failure rate of ProTaper rotary instruments
    Elio Berutti
    Department of Endodontics, School of Dentistry, Turin University, Turin, Italy
    J Endod 30:228-30. 2004
    We evaluated the influence of manual preflaring and torque on the failure rate of rotary nickel-titanium ProTaper instruments Shaping 1 (S1), Shaping 2 (S2), Finishing 1 (F1), and Finishing 2 (F2)...
  79. ncbi Accuracy of electronic implant torque controllers following time in clinical service
    R Mitrani
    University of Washington, Seattle 98195, USA
    Int J Oral Maxillofac Implants 16:394-9. 2001
    ..of the screws in implant-supported restorations has been reported to be problematic, in that if the applied torque is too low, screw loosening occurs. If the torque is too high, then screw fracture can take place...
  80. pmc Specific modulation of corticospinal and spinal excitabilities during maximal voluntary isometric, shortening and lengthening contractions in synergist muscles
    Julien Duclay
    Universite de Toulouse, UPS, PRISSMH, 118 route de Narbonne, Toulouse 31062, France
    J Physiol 589:2901-16. 2011
    ..The comparison of SOL and MG responses further suggests that the specific modulation of the corticospinal excitability during lengthening MVCs depends mainly on pre- and postsynaptic inhibitory mechanisms acting at the spinal level...
  81. ncbi Muscle force and muscle torque in humans require different methods when adjusting for differences in body size
    Slobodan Jaric
    Centre for Musculo Skeletal Research, National Institute for Working Life and Umea University, Box 7654, 907 13 Umea, Sweden
    Eur J Appl Physiol 87:304-7. 2002
    ..However, the fact that the relationship between S and body size may differ when muscle torque (measured using a standard isokinetic apparatus) and muscle force (measured using a dynamometer) are recorded has ..
  82. ncbi Implant abutment screw torque generated by general dentists using a hand driver in a limited access space simulating the mouth
    Edward E Hill
    Department of Care Planning and Restorative Sciences, School of Dentistry, University of Mississippi, 2500 North State Street, Jackson, MS 39116, USA
    J Oral Implantol 33:277-9. 2007
    ..Results indicated that mechanical torque wrenches must be used in posterior areas of the mouth to establish sufficient preload, and dental experience is ..
  83. ncbi Force-time history effects in voluntary contractions of human tibialis anterior
    Markus Tilp
    Human Performance Laboratory, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
    Eur J Appl Physiol 106:159-66. 2009
    ..During the stretch, muscular activity decreased after peak torque had been reached for the high speed stretch experiments...
  84. ncbi Angle- and gender-specific quadriceps femoris muscle recruitment and knee extensor torque
    Danny M Pincivero
    Human Performance and Fatigue Laboratory, Department of Kinesiology, The University of Toledo, Mail Stop 201, Toledo, OH 43606, USA
    J Biomech 37:1689-97. 2004
    The objectives were to examine knee angle-, and gender-specific knee extensor torque output and quadriceps femoris (QF) muscle recruitment during maximal effort, voluntary contractions...
  85. ncbi High and low torque handpieces: cutting dynamics, enamel cracking and tooth temperature
    T F Watson
    Division of Conservative Dentistry, Guy s, King s and St Thomas Dental Institute, KCL, Guy s Hospital, London Bridge
    Br Dent J 188:680-6. 2000
    The aim of these experiments was to compare the cutting dynamics of high-speed high-torque (speed-increasing) and high-speed low-torque (air-turbine) handpieces and evaluate the effect of handpiece torque and bur type on sub-surface ..
  86. ncbi Effects of upper trunk rotation on shoulder joint torque among baseball pitchers of various levels
    Arnel L Aguinaldo
    Center for Human Performance and Motion Analysis Laboratory, Children s Hospital San Diego, CA 92123, USA
    J Appl Biomech 23:42-51. 2007
    ..Professional pitchers demonstrated the least amount of rotational torque (p = ...
  87. ncbi Failure of ProFile instruments used with high and low torque motors
    G M Yared
    Discipline of Endodontics, Faculty of Dentistry, University of Toronto, Canada
    Int Endod J 34:471-5. 2001
    ..The purpose of this study was to evaluate the failure incidence of ProFile nickel-titanium rotary instruments when used in conjunction with different motors and a specific instrumentation technique...
  88. ncbi Analysis of viscoelastic properties of wrist joint for quantification of parkinsonian rigidity
    Byung Kyu Park
    Department of Physical Medicine and Rehabilitation, Korea University College of Medicine, Seoul, Korea
    IEEE Trans Neural Syst Rehabil Eng 19:167-76. 2011
    ..Severity of rigidity at the wrist was rated by a neurologist just before the experiment. Wrist joint torque resistive to the imposed movement was measured...
  89. ncbi Variability of mechanical torque-limiting devices in clinical service at a US dental school
    Michael S McCracken
    Department of Prosthodontics, University of Alabama at Birmingham School of Dentistry, Birmingham, AL 35294, USA
    J Prosthodont 19:20-4. 2010
    The purpose of this study was to measure the variability of torque produced by a population of mechanical torque-limiting devices in clinical service in a US dental school...
  90. ncbi Uncertainty of knee joint muscle activity during knee joint torque exertion: the significance of controlling adjacent joint torque
    Daichi Nozaki
    Dept of Rehabilitation for Movement Functions, Research Institute NRCD, 4 1 Namiki, Tokorozawa, Saitama 359 8555, Japan
    J Appl Physiol (1985) 99:1093-103. 2005
    In the single-joint torque exertion task, which has been widely used to control muscle activity, only the relevant joint torque is specified...
  91. pmc Hamstrings to quadriceps peak torque ratios diverge between sexes with increasing isokinetic angular velocity
    Timothy E Hewett
    Cincinnati Children s Hospital Research Foundation, Sports Medicine Biodynamics Center, United States
    J Sci Med Sport 11:452-9. 2008
    Our purpose was to determine if females demonstrate decreased hamstrings to quadriceps peak torque (H/Q) ratios compared to males and if H/Q ratios increase with increased isokinetic velocity in both sexes...
  92. ncbi Marginal fit and microgaps of implant-abutment interface with internal anti-rotation configuration
    Takuma Tsuge
    Nihon University Graduate School of Dentistry, 1 8 13 Kandasurugadai, Chiyoda ku, Tokyo 101 8310, Japan
    Dent Mater J 27:29-34. 2008
    ..3 to 5.6 microm. In conclusion, SEM images of I-A interface suggested no relationship between the geometrical factors and the type of anti-rotation configuration...
  93. ncbi Preliminary evaluation of a controlled-brake orthosis for FES-aided gait
    Michael Goldfarb
    Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37235, USA
    IEEE Trans Neural Syst Rehabil Eng 11:241-8. 2003
    ..Results for distance and speed improvements varied across subjects. Considerable work remains in the design of the hardware before the system is feasible for use outside the laboratory...
  94. ncbi Directional biases reveal utilization of arm's biomechanical properties for optimization of motor behavior
    Jacob A Goble
    Harrington Department of Bioengineering, Arizona State University, Tempe, Arizona 85287 0404, USA
    J Neurophysiol 98:1240-52. 2007
    ..one joint and largely passive motion at the other joint, revealing a tendency to minimize intervention of muscle torque for regulation of the effect of interaction torque...
  95. ncbi Clinical study on the insertion torque and wireless resonance frequency analysis in the assessment of torque capacity and stability of self-tapping dental implants
    S Kahraman
    Department of Oral and Maxillofacial Surgery, Gazi University, Ankara, Turkey
    J Oral Rehabil 36:755-61. 2009
    ..The maximal insertion torque values were recorded prior to RF analysis during surgery...
  96. ncbi Impact of varying pulse frequency and duration on muscle torque production and fatigue
    Chris M Gregory
    Brain Rehabilitation Research Center, North Florida South Georgia Veterans Health System Department of Physical Therapy, University of Florida, Gainesville, Florida 32610, USA
    Muscle Nerve 35:504-9. 2007
    ..The purpose of this study was to determine the extent to which varying pulse duration and frequency altered torque production and fatigability of human skeletal muscle in vivo...
  97. ncbi Comparison in eccentric exercise-induced muscle damage among four limb muscles
    Trevor C Chen
    Department of Physical Education, National Chiayi University, 85 Wenlong Village, Minsyong Township, Chiayi County, 62103, Taiwan
    Eur J Appl Physiol 111:211-23. 2011
    ..The difference in the susceptibility to muscle damage seems to be associated with the use of muscles in daily activities...
  98. ncbi Knee-flexion torque and morphology of the semitendinosus after ACL reconstruction
    Akie Nishino
    Department of Life Sciences, Graduate School of Arts and Sciences, University of Tokyo, Tokyo, Japan
    Med Sci Sports Exerc 38:1895-900. 2006
    The present study aimed to clarify the relationship between deficits in knee-flexion torque and morphological changes in the semitendinosus muscle-tendon complex after harvesting the semitendinosus tendon for anterior cruciate ligament (..
  99. ncbi Comparison of muscle torque, balance, and confidence in older tai chi and healthy adults
    William W N Tsang
    Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Med Sci Sports Exerc 37:280-9. 2005
    ..The objectives of this cross-sectional study were to examine whether older Tai Chi practitioners had better knee muscle strength, less body sway in perturbed single-leg stance, and greater balance confidence than healthy older adults...
  100. ncbi Accuracy of an electric torque-limiting device for implants
    J P Standlee
    Section of Restorative Dentistry, University of California at Los Angeles School of Dentistry 90095
    Int J Oral Maxillofac Implants 14:278-81. 1999
    The torque output of the Nobelpharma electric torque controller was determined using a special setup on an Instron test machine. The devices were held in a vice and oriented so that activation of the drivers caused a pure torsion effect...
  101. 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.

Research Grants67

  1. EMG Biofeedback with AMES
    Paul Cordo; Fiscal Year: 2007
    ..In AMES, the patient assists the motion of the robotic device using biofeedback of voluntary joint torque, while the sensation of motion is enhanced by tendon vibration...
  2. Characterizing Ankle Function During Sloped Locomotion For Prosthesis Development
    Alena Grabowski; Fiscal Year: 2012
    ..Ankle joint torque and angle data will be collected from 20 non-amputees while walking and running at multiple velocities (1.0, 1...
  3. Somatosensory feedback controlling a neuroprosthesis
    Douglas J Weber; Fiscal Year: 2010
    ..g. ground reaction force during stance), and stance phase joint-torque. Neural recordings will be made during limb movements imposed by a robot arm attached to the foot...
  4. Mechanisms of Viral DNA Packaging
    CARLOS JOSE BUSTAMANTE; Fiscal Year: 2013
    ..We will also establish the ability of the motor to generate torque, its magnitude and its generation mechanism relative to the production of linear force...
  5. Axial Flow Effects in Proximal Tubule
    TONG WANG WANG; Fiscal Year: 2012
    ..forces and torques on the microvilli, and demonstrated that flow-induced changes of proximal tubule absorption are torque dependent, and that an intact actin cytoskeleton is required to transduce the signal to the cell...
  6. STIMULATION-AUGMENTED EXERCISE AND NEUROMOTOR THERAPY
    Eric C Hartman; Fiscal Year: 2010
    ..a dynamometer test to assess improvements in volitional control independent of exercise-related improvements in torque generating capability...
  7. In Vivo Imaging-Based Multiscale Modeling of Normal and Atrophied Human Lower Leg
    Shantanu Sinha; Fiscal Year: 2013
    ..SA-2 will define the relative contribution to losses of torque due to atrophy-induced changes from: (A) Muscle deformation, (B) Muscle fiber strain, (C) Aponeurosis strain and ..
  8. EMG Biofeedback with AMES
    Paul Cordo; Fiscal Year: 2010
    ..The patient simultaneously assists with the imposed movement using biofeedback of voluntary joint torque. In a Phase I clinical trial (Cordo 2008), AMES was determined to be effective at restoring functional movement in ..
  9. EFFECT OF NEURAL CONSTRAINTS ON MOVEMENT IN STROKE
    Julius P Dewald; Fiscal Year: 2013
    ..As part of the first cycle of this R01 (years 1-5), we quantified torque-coupling patterns, and associated muscle activations, isometrically by using a 6 Degree-of-Freedom load cell...
  10. Fo Motor Mechanisms that Power FoF1 ATP Synthesis
    Wayne D Frasch; Fiscal Year: 2013
    ..The specific aims of the project will: (1) determine rotational velocity and torque generated by the Fo motor during ATP synthesis as a function of PMF;(2) determine tether formation and duration ..
  11. Massage Therapy In Eccentric Exercise Induced Muscle Weakness And Inflammation
    THOMAS MICHAEL BEST; Fiscal Year: 2012
    ..to determine an optimal magnitude, duration, and frequency of massage to restore muscle function (peak isometric torque) while investigating the effects of this combination on the host inflammatory and regenerative and reparative ..
  12. Hemispheric Dominance for Ipsilesional Movement
    Kathleen Y Haaland; Fiscal Year: 2012
    ..g., joint torque interactions) and steady state positional control...
  13. Neuromechanical Substrates for Post Stroke Asymmetric Gait
    YASIN YOUSEF DHAHER; Fiscal Year: 2013
    ..of abnormal muscle synergies, the surprisingly few quantitative studies of these synergies (in terms of joint torque patterns) have yielded conflicting results...
  14. Investigation of an Advanced Hand-Cycle Drive System for People with Disabilities
    THOMAS P O apos DONNELL; Fiscal Year: 2010
    ..To achieve variability in torque and speed relationships between the input (pedals) and output (drive wheel), multiple size chain rings and ..
  15. AMES+Brain Stimulation: Treatment for Profound Plegia in Stroke
    Paul Cordo; Fiscal Year: 2010
    ..or plegic joint while the patient assists the motion and observes visual biofeedback - in the form of joint torque for paretic individuals, or muscle activity (EMG) for plegic individuals - about their level of assistance...
  16. Mechanisms Impairing Finger Extension Following Stroke
    DEREK KAMPER; Fiscal Year: 2012
    ..2. Compare Mechanical Tissue Changes in Periphery Following Stroke. Observed weakness in finger torque production may be attributable to changes in muscle and soft tissue...
  17. SMART Mounts: independent positioning of mounted devices by people with severe di
    DIANNE GOODWIN; Fiscal Year: 2011
    ..The SMART joint includes a worm gear set in order to provide the torque required to move a sizable load, up to 15 pounds, and to hold it place when a person tilts in their wheelchair...
  18. Neuromuscular Intervention Targeted to Mechanisms of ACL Load in Female Athletes
    Timothy E Hewett; Fiscal Year: 2012
    ..LOAD via lateral positioning and increased magnitude of the GRF vector ( GRFv) or by altered reactive hip adductor torque (HAdT)...
  19. Structure-Function Relationships in the Spirochetal Flagellar Motor
    Jun Liu; Fiscal Year: 2013
    ..Winkler, we propose to focus on two specific aims: Specific Aim 1 - Determine the detailed structure of the torque-generating unit by analyzing the 3-D structures of the complete flagellar motor and the purified flagellar rotor ..
  20. Conservation of allosteric mechanisms within an enzyme family
    ADAM STEEVES; Fiscal Year: 2012
    ..and allosterically compromised mutants will assess changes in flexibility of key residues and the reorientation of torque-transmitting helices in the presence or absence of the allosteric activator...
  21. F1-ATPase Chemical-Mechanical Coupling Mechanisms
    Wayne D Frasch; Fiscal Year: 2010
    ..bonds and salt bridges between the (a(3)3 ring and the y subunit contribute to the generation of y subunit torque. We will test this hypothesis by accomplishing the following aims...
  22. Soft Tissue Biomechanical Behavior During Acupuncture in Low Back Pain
    Helene M Langevin; Fiscal Year: 2010
    ..Needle torque, force and tissue displacement patterns will be compared in LBP vs. No-LBP at Meridians vs...
  23. Effect of 3-D Compound Impulsive Loading on Relative ACL Strain
    Edward M Wojtys; Fiscal Year: 2012
    ..compound 3-D loading that causes the largest peak ACL strain: compression + flexion moment + internal tibial axial torque. We now seek funds to use this cadaver testing construct, complete with non-linear quadriceps tensile stiffness, ..
  24. Learning to use a brain-controlled Functional Electrical Stimulation system
    Emily R Oby; Fiscal Year: 2012
    ..that M1 includes a heterogeneous representation of the kinematics (position, velocity, etc) and dynamics (force, torque, etc) of limb movements...
  25. SMART Mounts: Accessible robotic mounts for independent positioning of devices by
    DIANNE GOODWIN; Fiscal Year: 2013
    ..The SMART joint includes a worm gear set in order to provide the torque required to move a sizable load, up to 15 pounds, and to hold it place when a person tilts in their wheelchair...
  26. NRI-Small: Chemo-Fludic Sleeve Muscle-Actuated Robotic Below-Knee Prostheses
    Xiangrong Shen; Fiscal Year: 2013
    ..the desired locomotive pattern based on the user's inferred motion intent, and generates the desired joint torque command though ah impedance-based motion controller that enables physical interaction between the user and the ..
  27. Catalytic mechanism of F1Fo-ATP synthase
    Joachim Weber; Fiscal Year: 2010
    ..This hypothesis will be tested by reducing the size of the loop and measurement of the rotational torque produced by ATP hydrolysis. (5) Investigation of the contribution of the Alpha subunit in driving subunit rotation...
  28. Actin filament elasticity and actin-binding protein function
    Enrique M De La Cruz; Fiscal Year: 2013
    ..Model filaments will be strained with external mechanical (buckling or torque) loads and the emergence of twist-bend coupling be assessed from out of plane deformations...
  29. Airway Smooth Muscle Cell Orientation Control by Contractile Torque
    Dimitrije Stamenovic; Fiscal Year: 2010
    ..contractile stress dictates orientation of the cell via a simple physical mechanism - namely the contractile torque - that steers the cell towards a new orientation...
  30. Transcranial Direct Current Stimulation and Motor Training in Chronic Stroke
    DYLAN JAMES EDWARDS; Fiscal Year: 2010
    ..We plan to use accepted TMS measures of cortical excitability, together with a novel twitch torque measure and motor control measures, to test the effects of tDCS delivered at different times in relation to an ..
  31. Biomechanical Evaluation of Adaptable Ankle-Foot Prostheses
    Andrew H Hansen; Fiscal Year: 2011
    ..Measurements will focus on the effective torque experienced at the end of the residual limb socket, which should relate to pressures felt within the socket and ..
  32. Development of a Bidirectional Brain Machine Interface
    Lee E Miller; Fiscal Year: 2013
    ..We previously demonstrated both joint torque and EMG predictions with accuracy comparable to that of kinematic predictions...
  33. Automated Connective Tissue Torque Sensor
    Robert T Davis; Fiscal Year: 2011
    DESCRIPTION (provided by applicant): The long term goal of this project is to develop a biomarker - the Needle Torque Test (NTT) - capable of detecting connective tissue abnormalities associated with musculoskeletal disorders...
  34. MICROSENSOR FOR INTRAMUSCULAR PRESSURE MEASUREMENT
    Kenton R Kaufman; Fiscal Year: 2013
    ..Manual muscle tests do not give an accurate estimate of muscle strength. Measurements of joint torque are inadequate because several muscles often contribute to torque development...
  35. Colonoscope Force Monitor
    Armen Sarvazyan; Fiscal Year: 2013
    ..handle attached to the colonoscope shaft to provide a physician with a real-time feedback on the force and torque applied during colonoscopy...
  36. QUADRICEPS POWER, MOVEMENT PATTERNS AND FUNCTION AFTER TOTAL KNEE ARTHROPLASTY
    Adam Rubin Marmon; Fiscal Year: 2012
    ..Therefore, examination of quadriceps muscle power, the product of joint torque and movement velocity, may provide additional insight into the functional impairments those patients who undergo ..
  37. Exercise-Facilitated NeuroRehabilitation in Diabetic Neuropathy
    EVAN STUBBS; Fiscal Year: 2009
    ..and quantitative secondary outcome measures that include an incremental symptom-limited treadmill test, peak torque, Total Neuropathy Score, visual analogue pain scale, and quality of life SF-36V Health Survey...
  38. PHYSICAL CHEMISTRY OF NUCLEIC ACIDS
    CARLOS JOSE BUSTAMANTE; Fiscal Year: 2012
    ..cycle in which a nucleotide condensation reaction is coupled to the mechanical tasks of movement, force, and torque generation...
  39. Outcomes After ACL Reconstruction: Femoral Nerve Block
    Brian Williams; Fiscal Year: 2005
    ..to determine whether the quadriceps femoris torque output is impaired...
  40. Haptic/visual perception of virtual viscoelastic tissue
    Bing Wu; Fiscal Year: 2010
    ..Experiments will be conducted to (1) determine how force/torque cues arise from exploratory interactions and give rise to the perception of viscoelasticity;(2) to test the ..
  41. Differentiation of Central versus Peripheral Fatigue in Parkinson's Disease
    A Joseph Threlkeld; Fiscal Year: 2012
    ..objective is to examine the neuromuscular mechanisms underlying fatigability by analyzing muscle activation and torque production obtained from people who have PD who report activity-related fatigability...
  42. BASAL GANGLIA CONTROL OF POSTURE AND MOVEMENT
    Jonathan Mink; Fiscal Year: 1999
    ..Second, torque pulse and torque step perturbations will be applied during maintained wrist position and prompt wrist movement...
  43. Adaptive High Intensity Electrical Stimulation for Post-Surgical Rehabilitation
    Eric Hartman; Fiscal Year: 2009
    ..of stabilizing the knee during near maximal isometric contractions and obtaining measurements of the resulting torque;2) to implement a rapid training version of our adaptive stimulation controller that is suited for use in this low ..
  44. Automated Connective Tissue Torque Sensor
    Robert Davis; Fiscal Year: 2007
    ..DESCRIPTION (provided by applicant): The long term goal of this project is to establish the usefulness of needle torque measurements for the diagnosis and monitoring of connective tissue pathology associated with chronic ..
  45. Neural representation of reward in frontal cortex
    Jonathan D Wallis; Fiscal Year: 2013
    ..the magnitude of a juice reward) with the effort required to obtain the outcome (which we manipulate using a torque adjustable lever that the subject must press to earn the reward)...
  46. The Role of the Cortex in Discoordination After Stroke
    Julius Dewald; Fiscal Year: 2009
    ..has produced evidence for a loss of certain muscle coactivation patterns and associated abnormal shoulder/elbow torque coupling in the paretic arm of individuals with hemiparetic stroke...
  47. Neuromechanical changes caused by stroke & stretching
    Li Qun Zhang; Fiscal Year: 2006
    ..joints in stroke patients safely and repeatedly to joint extreme positions until a pre-specified peak resistance torque is reached with the stretching velocity adjusted constantly and inversely proportional to the resistance torque...
  48. Determination of dynamic ankle impedance while walking
    Elliott J Rouse; Fiscal Year: 2011
    ..Specifically, impedance relates a dynamic positional displacement to the corresponding torque about the joint...
  49. Muscle Morphology, Strength and Compensatory Strategies Following Stroke
    Jill S Higginson; Fiscal Year: 2012
    ..and differences with healthy age- matched subjects, (2) Determine whether reductions in muscle force and net joint torque following stroke are due to altered morphology or impaired activation, (3) Identify factors that limit gait speed ..
  50. PRESERVING MOBILITY OF JRA CHILDREN USING NOCTURNAL TES
    MICHELLE URBAN; Fiscal Year: 1999
    ..The quantitative muscle strength will be assessed by monthly isometric knee extensor torque measurements...
  51. PRESERVING MOBILITY OF JRA CHILDREN USING NOCTURNAL TES
    John McGuire; Fiscal Year: 2001
    ..The quantitative muscle strength will be assessed by monthly isometric knee extensor torque measurements...
  52. Dynamics and mechanism of mechanical regulation of bacterial flagellar motor swit
    Jianhua Xing; Fiscal Year: 2013
    ..There are extensive but separate experimental and modeling efforts on BFM torque generation and CW-CCW switching...
  53. Robotic Prosthesis for Biomimetic Locomotion in Transfemoral Amputees
    Michael Goldfarb; Fiscal Year: 2010
    ..exhibit asymmetric gait kinematics, expend significantly more energy, and require a significant increase in hip torque relative to healthy subjects, which results in significantly increased socket interface forces...
  54. Biomechanical Effects of Industrial Eccentric Exertions
    Robert Radwin; Fiscal Year: 2004
    ..Peak torque levels and build-up time will be experimentally controlled...
  55. Natural History of Muscular & Reflex Changes in Stroke
    MEHDI MIRBAGHERI; Fiscal Year: 2004
    ..due largely to a lack of accurate and sensitive tools for separating the various mechanical contributions to net torque at the spastic joint...
  56. CARDIOPULMONARY GEOMETRY AND BLOOD FLOW
    Carol Lucas; Fiscal Year: 1991
    ..Algorithms will be developed for quantifying curvature and torque of the main trunk, flow divider offset, bifurcation angles, taper, and segment dimensions...
  57. An Improved Lever Drive Wheelchair Transmission
    Steve Green; Fiscal Year: 2003
    ..conducted at HERL has shown that only about half of the force being applied to the pushrim produces useful torque. In addition, researchers have associated several common injuries with pushrim propulsion...
  58. COMPUTER-WORKSTATION/NETWORK-SERVER TO LINK NIH INVESTIG
    WILLIAM RYMER; Fiscal Year: 1992
    ..Developing computer models will complement their experimental work by quantifying the torque-generating characteristics of the muscles responsible for stabilization of the head. Dr...
  59. Linkages between the safety of the hospital bed, patient falls and immobility
    JANICE MARGARET MORSE; Fiscal Year: 2013
    ..The biomechanical data will include joint torque during bed entry, exiting, and in-bed repositioning, as well as physical interactions between the patient, floor ..
  60. Cortical Activity Related to Isometric Joint Torques
    Julius Dewald; Fiscal Year: 2002
    ..differences in macroscopic electrical activity of human sensorimotor cortices during voluntary isometric torque generation in the upper limb...
  61. Robotic Orthoses for Gait Rehabilitation
    DANIEL FERRIS; Fiscal Year: 2009
    ..The ankle-foot orthosis has an artificial pneumatic muscle providing plantar flexor torque in response to soleus muscle activation (i.e. proportional myoelectric control)...
  62. Intervention to Enhance Lateral Balance Function and Prevent Falls in Aging
    Mark W Rogers; Fiscal Year: 2013
    ..precipitates falls, result from neuromechanical (NM) limitations in hip abductor-adductor (AB-AD) muscle strength (torque and power)...
  63. EVALUATOR TRAINING MANIKIN FOR SPASTICITY AND STRENGTH
    DAVID ENGSBERG; Fiscal Year: 2003
    ..evaluators could practice against a 'bench mark' standard providing accurate and consistent predefined resistive torque profiles...
  64. NEURAL MECHANISMS FOR THE TACTUAL PERCEPTION OF SOFTNESS
    ROBERT LA MOTTE; Fiscal Year: 2002
    ..the stylus will be played back and faithfully reproduced on the stylus via a piexoelectric actuatoor coupled to a torque motor...
  65. Muscular Properties and Balance Control in Older Adults
    GRAHAM CALDWELL; Fiscal Year: 2007
    ..In Specific Aim (SA) 1, ankle joint torque and muscle EMG activity will be measured during isometric and dynamic MVC contractions on a Biodex dynamometer...
  66. Physiological and biomechanical analyses of Parkinsonian rigidity
    Ruiping Xia; Fiscal Year: 2009
    ..the constant resistance of rigidity during imposed wrist flexion and extension movements by quantifying measured torque of the wrist joint...
  67. TORQUE GENERATION FOLLOWING SURGICAL TENDON TRANSFERS
    Richard Lieber; Fiscal Year: 1993
    ..The thesis of this proposal is that muscle fiber length dramatically affects what we term the "torque profile" (ie. peak torque, range of motion, and the angle at which peak torque occurs)...