Jon Williamson

Summary

Affiliation: University of Texas Southwestern Medical Center
Country: USA

Publications

  1. pmc The relevance of central command for the neural cardiovascular control of exercise
    J W Williamson
    University of Texas Southwestern Medical Center, Department of Health Care Sciences, 5323 Harry Hines Boulevard, Dallas, TX 75390 9082, USA
    Exp Physiol 95:1043-8. 2010
  2. doi request reprint Are decreases in insular regional cerebral blood flow sustained during postexercise hypotension?
    Jon W Williamson
    Department of Health Care Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390 9082, USA
    Med Sci Sports Exerc 41:574-80. 2009
  3. ncbi request reprint Changes in regional cerebral blood flow distribution during postexercise hypotension in humans
    J W Williamson
    Department of Physical Therapy, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75235 8876, USA
    J Appl Physiol 96:719-24. 2004
  4. ncbi request reprint Brain activation by central command during actual and imagined handgrip under hypnosis
    J W Williamson
    Department of Physical Therapy, University of Texas Southwestern Medical Center, Dallas, Texas 75390 8876, USA
    J Appl Physiol 92:1317-24. 2002
  5. ncbi request reprint Hypnotic manipulation of effort sense during dynamic exercise: cardiovascular responses and brain activation
    J W Williamson
    Department of Physical Therapy, University of Texas Southwestern Medical Center, Dallas, Texas 75390 8876, USA
    J Appl Physiol 90:1392-9. 2001
  6. ncbi request reprint Evidence for central command activation of the human insular cortex during exercise
    J W Williamson
    Department of Health Care Sciences, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390 8876, USA
    J Appl Physiol 94:1726-34. 2003
  7. ncbi request reprint Activation of the insular cortex is affected by the intensity of exercise
    J W Williamson
    Department of Physical Therapy, University of Texas Southwestern Medical Center, Dallas, Texas 75235 8876, USA
    J Appl Physiol 87:1213-9. 1999
  8. ncbi request reprint Changes in supraspinal activation patterns following robotic locomotor therapy in motor-incomplete spinal cord injury
    Patricia Winchester
    University of Texas Southwestern Medical Center, Department of Physical Therapy, Dallas, TX 75390 8876, USA
    Neurorehabil Neural Repair 19:313-24. 2005
  9. ncbi request reprint A 30-year follow-up of the Dallas Bedrest and Training Study: I. Effect of age on the cardiovascular response to exercise
    D K McGuire
    Pauline and Adolph Weinberger Laboratory for Cardiopulmonary Research, University of Texas Southwestern Medical Center, Dallas, TX 75390 9047, USA
    Circulation 104:1350-7. 2001
  10. ncbi request reprint A 30-year follow-up of the Dallas Bedrest and Training Study: II. Effect of age on cardiovascular adaptation to exercise training
    D K McGuire
    Pauline and Adolph Weinberger Laboratory for Cardiopulmonary Research, University of Texas Southwestern Medical Center, Dallas, TX 75390 9047, USA
    Circulation 104:1358-66. 2001

Research Grants

Detail Information

Publications13

  1. pmc The relevance of central command for the neural cardiovascular control of exercise
    J W Williamson
    University of Texas Southwestern Medical Center, Department of Health Care Sciences, 5323 Harry Hines Boulevard, Dallas, TX 75390 9082, USA
    Exp Physiol 95:1043-8. 2010
    ....
  2. doi request reprint Are decreases in insular regional cerebral blood flow sustained during postexercise hypotension?
    Jon W Williamson
    Department of Health Care Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390 9082, USA
    Med Sci Sports Exerc 41:574-80. 2009
    ..Regional cerebral blood flow (rCBF) in the insular cortex (IC), a well-recognized site for central blood pressure (BP) modulation, is decreased at minute 10 during postexercise hypotension (PEH)...
  3. ncbi request reprint Changes in regional cerebral blood flow distribution during postexercise hypotension in humans
    J W Williamson
    Department of Physical Therapy, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75235 8876, USA
    J Appl Physiol 96:719-24. 2004
    ..Findings suggest that these cerebral cortical regions, previously implicated in cardiovascular regulation during exercise, may also be involved in PEH...
  4. ncbi request reprint Brain activation by central command during actual and imagined handgrip under hypnosis
    J W Williamson
    Department of Physical Therapy, University of Texas Southwestern Medical Center, Dallas, Texas 75390 8876, USA
    J Appl Physiol 92:1317-24. 2002
    ....
  5. ncbi request reprint Hypnotic manipulation of effort sense during dynamic exercise: cardiovascular responses and brain activation
    J W Williamson
    Department of Physical Therapy, University of Texas Southwestern Medical Center, Dallas, Texas 75390 8876, USA
    J Appl Physiol 90:1392-9. 2001
    ....
  6. ncbi request reprint Evidence for central command activation of the human insular cortex during exercise
    J W Williamson
    Department of Health Care Sciences, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390 8876, USA
    J Appl Physiol 94:1726-34. 2003
    ....
  7. ncbi request reprint Activation of the insular cortex is affected by the intensity of exercise
    J W Williamson
    Department of Physical Therapy, University of Texas Southwestern Medical Center, Dallas, Texas 75235 8876, USA
    J Appl Physiol 87:1213-9. 1999
    ..79; P < 0.01) during exercise. These results suggest that the magnitude of insular activation varies with the intensity of exercise, which may be further related to the level of perceived effort or central command...
  8. ncbi request reprint Changes in supraspinal activation patterns following robotic locomotor therapy in motor-incomplete spinal cord injury
    Patricia Winchester
    University of Texas Southwestern Medical Center, Department of Physical Therapy, Dallas, TX 75390 8876, USA
    Neurorehabil Neural Repair 19:313-24. 2005
    ..The purpose of this study was to evaluate the potential for supraspinal reorganization associated with 12 weeks of robotic BWSTT using functional magnetic resonance imaging (fMRI)...
  9. ncbi request reprint A 30-year follow-up of the Dallas Bedrest and Training Study: I. Effect of age on the cardiovascular response to exercise
    D K McGuire
    Pauline and Adolph Weinberger Laboratory for Cardiopulmonary Research, University of Texas Southwestern Medical Center, Dallas, TX 75390 9047, USA
    Circulation 104:1350-7. 2001
    ..Our study objective was to assess the effect of a 30-year interval on body composition and cardiovascular response to acute exercise in 5 healthy subjects originally evaluated in 1966...
  10. ncbi request reprint A 30-year follow-up of the Dallas Bedrest and Training Study: II. Effect of age on cardiovascular adaptation to exercise training
    D K McGuire
    Pauline and Adolph Weinberger Laboratory for Cardiopulmonary Research, University of Texas Southwestern Medical Center, Dallas, TX 75390 9047, USA
    Circulation 104:1358-66. 2001
    ..4 versus 21.7 L/min); submaximal heart rates also declined to a similar degree. Maximal AVDO(2) increased by 10% (13.8 versus 15.2 vol%) and accounted for the entire improvement of aerobic power associated with training...
  11. pmc Activation of the insular cortex during dynamic exercise in humans
    J W Williamson
    University of Texas Southwestern Medical Center, Department of Physical Therapy, Dallas 75235, USA
    J Physiol 503:277-83. 1997
    ..Additionally, findings during passive cycling with electrical stimulation support the role of leg muscle afferent input towards the full activation of leg motor areas...
  12. pmc Cardiovascular responses to static exercise in patients with Brown-Séquard syndrome
    P K Winchester
    Department of Physical Therapy and The Harry S Moss Heart Center, The University of Texas Southwestern Medical Centre at Dallas, Dallas, TX 75235, USA
    J Physiol 527:193-202. 2000
    ....
  13. ncbi request reprint New insights into central cardiovascular control during exercise in humans: a central command update
    J W Williamson
    Department of Kinesiology, Health Promotion and Recreation Univeristy of North Texas, Denton, TX 76203 1337, USA
    Exp Physiol 91:51-8. 2006
    ..The purpose of this review is to provide an update of current concepts on central command in humans, with a particular emphasis on the regions of the brain identified to alter autonomic outflow and result in cardiovascular adjustments...

Research Grants4

  1. CEREBRAL CORTICAL SITES OF CARDIOVASCULAR REGULATION
    Jon Williamson; Fiscal Year: 2002
    ..These studies represent an initial step in furthering the understanding of the role played by the human cerebral cortex in health and disease. ..