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Recent Publications - Dr. Susan Harkema

2011

Harkema SJ, Gerasimenko Y, Hodes J, Burdick J, Angeli C, Chen Y, Ferreira C, Wilhite A, Reic E, Grossman RG, Edgerton VE. (2011) Effect of epidural stimulation of the lumbosacral spinal cord on voluntary movement, standing, and assisted stepping after motor complete paraplegia: a case study.  Lancet 377:1938-1947.

McKay WB, Ovechkin AV, Vitas TW, Terson De Paleville D, Harkema SJ.  Neurophysiological Characterization of Motor Recovery in Acute Spinal Cord Injury.  Spinal Cord.

Galvez JA, Budovitch A, Harkema SJ, Reinkensmeyer DJ. (2011) Trainer variability during step training after spinal cord injury: Implications for robotic gait training device design. J Rehabil Res Dev. 48(2):147-60.

 Book

 Harkema SJ, Behrman AL, Barbeau H. Locomotor Training: Principles and Practice, Oxford Press, May 2011.

2010

Dy CJ, Gerasimenko YP, Edgerton VR, Dyhre-Poulsen P, Courtine G, and Harkema SJ. (2010) Phase dependent modulation of percutaneously elicited multisegmental muscle responses after spinal cord injury. J Neurophysiol. May; 103(5):2808-20.

McKay WB, Ovechkin AV, Vitaz TW, Terson De Paleville D, Harkema SJ.  (2010) Long-lasting Involuntary Motor Activity in Acute Spinal Cord Injury.  Spinal Cord 49(1):87-93.

2009

Datta S, Lorenz DJ, Morrison S, Ardolino E, Harkema SJ. A multivariate examination of temporal changes in Berg Balance Scale items for patients with ASIA Impairment Scale C and D spinal cord injuries. Arch Phys Med Rehabil. 2009 Jul;90(7):1208-17. PubMed PMID: 19577035.

Knikou M, Angeli CA, Ferreira CK, Harkema SJ. Flexion reflex modulation during stepping in human spinal cord injury. Exp Brain Res. 2009 Jul;196(3):341-51. Epub 2009 May 26. PubMed PMID: 19468720.

Knikou M, Angeli CA, Ferreira CK, Harkema SJ. Soleus H-reflex modulation during body weight support treadmill walking in spinal cord intact and injured subjects. Exp Brain Res. 2009 Mar;193(3):397-407. Epub 2008 Nov 15. PubMed PMID:19011843.

Knikou M, Angeli CA, Ferreira CK, Harkema SJ. Soleus H-reflex gain, threshold, and amplitude as function of body posture and load in spinal cord intact and injured subjects. Int J Neurosci. 2009;119(11):2056-73. PubMed PMID: 19863261.

2008

Harkema SJ, Ferreira CK, van den Brand RJ, Krassioukov AV. Improvements in orthostatic instability with stand locomotor training in individuals with spinal cord injury. J Neurotrauma. 2008 Dec;25(12):1467-75. PubMed PMID: 19118454;PubMed Central PMCID: PMC2729458.


Harkema SJ. Plasticity of interneuronal networks of the functionally isolated human spinal cord. Brain Res Rev. 2008 Jan;57(1):255-64. Epub 2007 Aug 14. Review. PubMed PMID: 18042493; PubMed Central PMCID: PMC2729454.

Emken JL, Harkema SJ, Beres-Jones JA, Ferreira CK, Reinkensmeyer DJ. Feasibility of manual teach-and-replay and continuous impedance shaping for robotic locomotor training following spinal cord injury. IEEE Trans Biomed Eng. 2008 Jan;55(1):322-34. PubMed PMID: 18232376.

Forrest GF, Sisto SA, Barbeau H, Kirshblum SC, Wilen J, Bond Q, Bentson S, Asselin P, Cirnigliaro CM, Harkema S. Neuromotor and musculoskeletal responses to locomotor training for an individual with chronic motor complete AIS-B spinal cord injury. J Spinal Cord Med. 2008;31(5):509-21. PubMed PMID: 19086708; PubMed Central PMCID: PMC2607123.

Harkema, SJ. Plasticity of interneural networks of the functionally isolated human spinal cord. Brain Res Rev. 2008 Jan;57(1):255-64.


2007

Dobkins B, Barbeau H, Deforge D, Ditunno J, Elashoff R, Apple D, Basso M, Behrman A, Harkema S, Saulino M, Scott M; Spinal Cord Injury Locomotor Trial Group. The evolution of walking-related outcomes over the first 12 weeks of rehabilitation for incomplete traumatic spinal cord injury: the multicenter randomized Spinal Cord Injury Locomotor Trial. Neurorehabil Neural Repair. 2007 Jan-Feb; 21(1):25-35.

Giesser B, Beres-Jones J, Budovitch A, Herlihy E, Harkema S. Locomotor training using body weight support on a treadmill improves mobility in persons with multiple sclerosis: a pilot study. Multiple Sclerosis 2007 Mar;13(2):224-31.

Courtine G, Harkema SJ, Dy CJ, Gerasimenko YP, Dyhre-Poulsen P. Modulation of multisegmental monosynaptic responses in a variety of leg muscles during walking and running in humans. J Physiol. 2007 Aug 1; 582(Pt): 1125-39. Epub 2007 April 19.

Ditunno J, Barbeau H, Dobkin B, Elashoff R, Harkema S, Marino R, Hauck WW, Apple D, Basso M, Behrman A, Deforge D, Fugate L, Saulino M, Scott M, Chung J. Validity of the walking scale for spinal cord injury and other domains of function in a multicenter clinical trial. Neurorehabil Neural Repair. 2007 May 16.

Behrman AL and Harkema SJ. Physical rehabilitation as an agent for recovery after spinal cord injury. Phys Med Rehabil Clin N Am. 2007 May;18(2):183-202. v.Review.

2006

Krassioukov AV, Harkema SJ. Effect of harness application and postural changes on cardiovascular parameters of individuals with spinal cord injury. Spinal Cord 2006 Dec; 44(12):780-6. Epub 2006 Jun 27.

Dobkin B, Apple D, Barbeau H, Basso M, Behrman A, Deforge D, Ditunno J, Dudley G, Elashoff R, Fugate L, Harkema S, Saulino M, Scott M; Spinal Cord Injury Locomotor Trial Group. Weight-supported treadmill vs over-ground training for walking after acute incomplete SCI. Neurology. 2006 Feb 28; 66(4):484-93.

Reinkensmeyer DJ, Aoyagi D, Emken JL, Galvez JA, Ichinose W, Kerdanyan G, Maneekobkunwong S, Minakata K, Nessler JA, Weber R, Roy RR, de Leon R, Bobrow JE, Harkema SJ, Edgerton VR. Tools for understanding and optimizing robotic gait training. J Rehabil Res Dev. 2006 Aug-Sep; 43(5):657-70. Review.

Barbeau H, Basso M, Behrman A, Harkema S. Treadmill training after spinal cord injury: good but not better. Neurology. 2006 Nov 28; 67(10): 1900-1.

2005

Behrman AL, Lawless-Dixon AR, Davis SB, Bowden MG, Nair P, Phadke C, Hannold EM, Plummer P, Harkema SJ. Locomotor training progression and outcomes after incomplete spinal cord injury. Phys Ther. 2005 Dec;85 (12):1356-71.

2004

Beres-Jones JA, Harkema SJ. (2004) Human lumbosacral spinal cord interprets velocity dependent afferent input during stepping. Brain Oct;127(Pt 10):2232-46.

Dietz V, Harkema SJ. (2004) Locomotor activity in spinal cord injured persons. J Appl Physiol. 96:1954-1960.

Ferris DP, Gordon KE, Beres-Jones HA, Harkema SJ. (2004) Muscle activation during unilateral stepping occurs in the nonstepping limb of humans with clinically complete spinal cord injury. Spinal Cord 42:14-23 *

2003

Beres-Jones JA, Johnson TD, Harkema SJ (2003) Clonus after human spinal cord injury cannot be attributed soley to recurrent muscle-tendon stretch. Exp Brain Res 149:222-236 *

Dobkin BH, Apple DA, Barbeau H, Basso M, Behrman A, Deforge D, Ditunno J, Dudley G, Elashoff R, Fugate L, Harkema S, Saulino M and Scott M. (2003) Methods for a randomized trail of weight supported treadmill training versus conventional training for walking during inpatient rehabilitation after incomplete traumatic spinal cord injury. Neurorehab Neural Rep;17(3):153-167.

Johnson TD, Elashoff RM, Harkema SJ. (2003) A Bayesian change-point analysis of electromyographic data: Detecting muscle activation patterns and associated applications. Biostatistics Jan;4(1):143-164

2002

Harkema SJ, Behrman AL. (2002) Locomotor training principles and practice. G. Dejong (ed.), Robomedica, Inc., Los Angeles.

Maegele M, Mueller S, Wernig A, Edgerton VR, Harkema SJ. (2002) Recruitment of spinal motor pools J Neurotrauma;19(10):1217-29

Edgerton, VR, Harkema SJ, Dobkin BH. (2002) Retraining the human spinal cord to walk. In: Spinal Cord Medcine, edited by V. Lin, Demos Publishing, 843-852, 2002

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