Joel Pickar

Summary

Affiliation: Palmer Center for Chiropractic Research
Country: USA

Publications

  1. pmc Response of lumbar paraspinal muscles spindles is greater to spinal manipulative loading compared with slower loading under length control
    Joel G Pickar
    Palmer Center for Chiropractic Research, 741 Brady St, Davenport, IA 52803 5209, USA
    Spine J 7:583-95. 2007
  2. ncbi request reprint Neurophysiological effects of spinal manipulation
    Joel G Pickar
    Palmer Center for Chiropractic Research, 1000 Brady Street, Davenport, IA 52803, USA
    Spine J 2:357-71. 2002
  3. pmc Relationship between Biomechanical Characteristics of Spinal Manipulation and Neural Responses in an Animal Model: Effect of Linear Control of Thrust Displacement versus Force, Thrust Amplitude, Thrust Duration, and Thrust Rate
    William R Reed
    Palmer College of Chiropractic, Palmer Center for Chiropractic Research, Davenport, IA 52803, USA
    Evid Based Complement Alternat Med 2013:492039. 2013
  4. pmc Spinal manipulative therapy and somatosensory activation
    J G Pickar
    Palmer Center for Chiropractic Research, Palmer College of Chiropractic, Davenport, IA, USA
    J Electromyogr Kinesiol 22:785-94. 2012
  5. pmc Plane of vertebral movement eliciting muscle lengthening history in the low back influences the decrease in muscle spindle responsiveness of the cat
    Weiqing Ge
    Palmer Center for Chiropractic Research, Davenport, IA 52803, USA
    J Appl Physiol (1985) 111:1735-43. 2011
  6. ncbi request reprint Response of muscle proprioceptors to spinal manipulative-like loads in the anesthetized cat
    J G Pickar
    Kansas State University, Department of Anatomy and Physiology, Manhattan, KS, USA
    J Manipulative Physiol Ther 24:2-11. 2001
  7. ncbi request reprint An in vivo preparation for investigating neural responses to controlled loading of a lumbar vertebra in the anesthetized cat
    J G Pickar
    Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan 66506, USA
    J Neurosci Methods 89:87-96. 1999
  8. ncbi request reprint Paraspinal muscle spindle responses to the duration of a spinal manipulation under force control
    Joel G Pickar
    Palmer Center for Chiropractic Research, Palmer College of Chiropractic, Davenport, Iowa 52803, USA
    J Manipulative Physiol Ther 29:22-31. 2006
  9. ncbi request reprint Stimulation of chemosensitive afferents from multifidus muscle does not sensitize multifidus muscle spindles to vertebral loads in the lumbar spine of the cat
    Y M Kang
    Palmer Center for Chiropractic Research, Davenport
    Spine (Phila Pa 1976) 26:1528-36. 2001
  10. ncbi request reprint Change of paraspinal muscle spindle resting discharge evoked by mechanical vibration
    Weiqing Ge
    Palmer Center for Chiropractic Research, Davenport, IA 52803 USA phone 563 884 5145 fax 563 884 5227 e mail
    Conf Proc IEEE Eng Med Biol Soc 5:5002-5. 2005

Collaborators

Detail Information

Publications21

  1. pmc Response of lumbar paraspinal muscles spindles is greater to spinal manipulative loading compared with slower loading under length control
    Joel G Pickar
    Palmer Center for Chiropractic Research, 741 Brady St, Davenport, IA 52803 5209, USA
    Spine J 7:583-95. 2007
    ..Biomechanical changes evoked by an HVLA-SM are thought to have physiological consequences caused, at least in part, by changes in sensory signaling from paraspinal tissues...
  2. ncbi request reprint Neurophysiological effects of spinal manipulation
    Joel G Pickar
    Palmer Center for Chiropractic Research, 1000 Brady Street, Davenport, IA 52803, USA
    Spine J 2:357-71. 2002
    ..Although this does not negate the clinical effects of spinal manipulation, it hinders acceptance by the wider scientific and health-care communities and hinders rational strategies for improving the delivery of spinal manipulation...
  3. pmc Relationship between Biomechanical Characteristics of Spinal Manipulation and Neural Responses in an Animal Model: Effect of Linear Control of Thrust Displacement versus Force, Thrust Amplitude, Thrust Duration, and Thrust Rate
    William R Reed
    Palmer College of Chiropractic, Palmer Center for Chiropractic Research, Davenport, IA 52803, USA
    Evid Based Complement Alternat Med 2013:492039. 2013
    ..This study provides a basis for considering biomechanical characteristics of an HVLA-SM that should be measured and reported in clinical efficacy studies to help define effective clinical dosages...
  4. pmc Spinal manipulative therapy and somatosensory activation
    J G Pickar
    Palmer Center for Chiropractic Research, Palmer College of Chiropractic, Davenport, IA, USA
    J Electromyogr Kinesiol 22:785-94. 2012
    ....
  5. pmc Plane of vertebral movement eliciting muscle lengthening history in the low back influences the decrease in muscle spindle responsiveness of the cat
    Weiqing Ge
    Palmer Center for Chiropractic Research, Davenport, IA 52803, USA
    J Appl Physiol (1985) 111:1735-43. 2011
    ..Speculation is made that the interaction between normal spinal mechanics and the inherent thixotropic property of muscle spindles poses a challenge for feedback and feedforward motor control of the lumbar spine...
  6. ncbi request reprint Response of muscle proprioceptors to spinal manipulative-like loads in the anesthetized cat
    J G Pickar
    Kansas State University, Department of Anatomy and Physiology, Manhattan, KS, USA
    J Manipulative Physiol Ther 24:2-11. 2001
    ..The purpose of the present study was to determine whether muscle spindles and Golgi tendon organs in paraspinal muscles respond to a mechanical load whose force-time profile is similar to that of a spinal manipulation...
  7. ncbi request reprint An in vivo preparation for investigating neural responses to controlled loading of a lumbar vertebra in the anesthetized cat
    J G Pickar
    Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan 66506, USA
    J Neurosci Methods 89:87-96. 1999
    ....
  8. ncbi request reprint Paraspinal muscle spindle responses to the duration of a spinal manipulation under force control
    Joel G Pickar
    Palmer Center for Chiropractic Research, Palmer College of Chiropractic, Davenport, Iowa 52803, USA
    J Manipulative Physiol Ther 29:22-31. 2006
    ..The purpose of the current study was determine how the duration of a lumbar HVLA-SM given under force control affects the discharge of paraspinal muscle spindle afferents...
  9. ncbi request reprint Stimulation of chemosensitive afferents from multifidus muscle does not sensitize multifidus muscle spindles to vertebral loads in the lumbar spine of the cat
    Y M Kang
    Palmer Center for Chiropractic Research, Davenport
    Spine (Phila Pa 1976) 26:1528-36. 2001
    ..In addition, the present results do not provide evidence for the pain-spasm-pain cycle in the lumbar spine...
  10. ncbi request reprint Change of paraspinal muscle spindle resting discharge evoked by mechanical vibration
    Weiqing Ge
    Palmer Center for Chiropractic Research, Davenport, IA 52803 USA phone 563 884 5145 fax 563 884 5227 e mail
    Conf Proc IEEE Eng Med Biol Soc 5:5002-5. 2005
    ..01). The average normalized increase was 60.5%. The results shed light on changes in proprioceptive input from the low back that can be induced by mechanical vibration...
  11. ncbi request reprint Somatosympathetic reflexes from the low back in the anesthetized cat
    Y M Kang
    Palmer College of Chiropractic, Palmer Center for Chiropractic Research, Iowa, Davenport 52803, USA
    J Neurophysiol 90:2548-59. 2003
    ..A static mechanical load applied to the lumbar spine accompanying the inflammatory stimulus appears to sustain the inflammatory-induced reflex activity...
  12. ncbi request reprint Responses of mechanosensitive afferents to manipulation of the lumbar facet in the cat
    J G Pickar
    Department of Anatomy and Physiology, Kansas State University, Manhattan, USA
    Spine (Phila Pa 1976) 20:2379-85. 1995
    ..Mechanosensitive endings in the lumbar spine show graded sensitivity to the direction of facet manipulation. These Group III and IV afferents can reside some distance from the facet joint and remain sensitive to facet motion...
  13. pmc Lengthening but not shortening history of paraspinal muscle spindles in the low back alters their dynamic sensitivity
    Dong Yuan Cao
    Palmer Center for Chiropractic Research, Palmer College of Chiropractic, 741 Brady Street, Davenport, IA 52803, USA
    J Neurophysiol 105:434-41. 2011
    ..23, P = 0.87]. In conclusion, only movement histories that stretch but not shorten muscle spindles alter their velocity sensitivity. In the low back, forward flexion and lateral bending postures would likely be the most provocative...
  14. pmc Vertebral position alters paraspinal muscle spindle responsiveness in the feline spine: effect of positioning duration
    Weiqing Ge
    Palmer Center for Chiropractic Research, 741 Brady Street, Davenport, IA 52803, USA
    J Physiol 569:655-65. 2005
    ..0, P < 0.001). These effects of vertebral positioning history may be a mechanism whereby spinal biomechanics interacts with the spine's proprioceptive system to produce acute effects on neuromuscular control of the vertebral column...
  15. ncbi request reprint Electrophysiologic evidence for an intersegmental reflex pathway between lumbar paraspinal tissues
    Yu Ming Kang
    Department of Biomedical Engineering, University of Iowa and the Iowa Spine Research Center, Iowa City, USA
    Spine (Phila Pa 1976) 27:E56-63. 2002
    ..A variety of approaches were used to demonstrate the reflex nature of both the nerve and the muscle response...
  16. pmc Time course for the development of muscle history in lumbar paraspinal muscle spindles arising from changes in vertebral position
    Weiqing Ge
    Palmer Center Chiropractic Research, Neurophysiology, 741 Brady Street, Davenport, IA 52803 5209, USA
    Spine J 8:320-8. 2008
    ..The present study explores a mechanism that can affect the responsiveness of paraspinal muscle spindles in the lumbar spine...
  17. ncbi request reprint Discharge properties of group III and IV muscle afferents
    Marc P Kaufman
    Department of Internal Medicine and Human Physiology, University of California, Davis, USA
    Adv Exp Med Biol 508:25-32. 2002
    ..Particular attention will be paid to the responses of these afferents to dynamic exercise induced by electrical stimulation of the mesencephalic locomotor region...
  18. ncbi request reprint Development of an evidence-based application and rubric for evaluating applicants' qualifications for promotion to professor
    Glenda C Wiese
    David D Palmer Health Sciences Library, Palmer College of Chiropractic, Davenport Campus, Davenport, Iowa 52803, USA
    J Manipulative Physiol Ther 30:527-35. 2007
    ....
  19. ncbi request reprint Effect of spinal manipulation duration on low threshold mechanoreceptors in lumbar paraspinal muscles: a preliminary report
    Paul S Sung
    Palmer College of Chiropractic, Palmer Center for Chiropractic Research, Davenport, IA 52803, USA
    Spine (Phila Pa 1976) 30:115-22. 2005
    ..Electrophysiologic recordings were obtained from low threshold primary afferent neurons innervating lumbar multifidus and longissimus muscles in the anesthetized cat...
  20. ncbi request reprint Spinal manipulation alters electromyographic activity of paraspinal muscles: a descriptive study
    James W Devocht
    Palmer Center for Chiropractic Research, Davenport, Iowa 52803, USA
    J Manipulative Physiol Ther 28:465-71. 2005
    ..To examine the effect of spinal manipulation on electromyographic (EMG) activity in areas of localized tight muscle bundles of the low back...
  21. ncbi request reprint Skeletal muscle ouabain binding sites are reduced in rats with chronic heart failure
    Timothy I Musch
    Department of Anatomy, Kansas State University, Manhattan, Kansas 66506 5802, USA
    J Appl Physiol (1985) 92:2326-34. 2002
    ..01). These results suggest that downregulation of Na(+)-K(+) pumps that possess a high affinity for ouabain in oxidative skeletal muscle may play an important role in the exercise intolerance that attends severe LV dysfunction in CHF...

Research Grants8

  1. Does spinal manipulation speed determine neural response
    Joel Pickar; Fiscal Year: 2002
    ..Teaching the manual skill of spinal manipulation could be approached from the perspective of quantifying the velocity with which the clinician applies a spinal manipulation. ..
  2. NEUROPHYSIOLOGICAL CONSEQUENCES OF LUMBAR FACET MOVEMENT
    Joel Pickar; Fiscal Year: 1999
    ....
  3. NEUROPHYSIOLOGICAL CONSEQUENCES OF LUMBAR FACET MOVEMENT
    Joel Pickar; Fiscal Year: 2001
    ....
  4. VERTEBRAL POSITION ALTERS MUSCLE SPINDLE SENSITIVITY
    Joel Pickar; Fiscal Year: 2003
    ..Spinal manipulation is inherently a biomechanical intervention and the therapeutic successes of spinal manipulation for idiopathic low back pain may relate, in part, to the mechanical component of idiopathic low back. ..
  5. VERTEBRAL POSITION ALTERS MUSCLE SPINDLE SENSITIVITY
    Joel Pickar; Fiscal Year: 2004
    ..Spinal manipulation is inherently a biomechanical intervention and the therapeutic successes of spinal manipulation for idiopathic low back pain may relate, in part, to the mechanical component of idiopathic low back. ..
  6. VERTEBRAL POSITION ALTERS MUSCLE SPINDLE SENSITIVITY
    Joel Pickar; Fiscal Year: 2005
    ..Spinal manipulation is inherently a biomechanical intervention and the therapeutic successes of spinal manipulation for idiopathic low back pain may relate, in part, to the mechanical component of idiopathic low back. ..
  7. VERTEBRAL POSITION ALTERS MUSCLE SPINDLE SENSITIVITY
    Joel Pickar; Fiscal Year: 2006
    ..Spinal manipulation is inherently a biomechanical intervention and the therapeutic successes of spinal manipulation for idiopathic low back pain may relate, in part, to the mechanical component of idiopathic low back. ..
  8. Developmental Center to Study Mechanisms & Effects of Chiropractic Manipulation
    Joel Pickar; Fiscal Year: 2007
    ..The study is significant because it contributes to accomplishing NCCAM's strategic plan by characterizing the biomechanics of manipulative procedures in an effort to clarify the mechanisms of action operative in manipulation practices. ..