Research Findings

• Dr. Musa Audu
• Dr. Kath Bogie
• Dr. Edward Chadwick
• Dr. John Chae
• Dr. Patrick Crago
• Dr. Graham Creasey
• Dr. Janis Daly
• Dr. Ken Gustafson
• Dr. Elizabeth Hardin
• Dr. Chester Ho
• Dr. Harry Hoyen
• Dr. Michael Keith

• Dr. Kevin Kilgore
• Dr. Robert Kirsch
• Dr. Jayme Knutson
• Dr. Rudi Kobetic
• Dr. Cameron McIntyre
• Dr. Neal Peachey
• Dr. Hunter Peckham
• Dr. Robert Ruff
• Dr. Dawn Taylor
• Dr. Ronald Triolo
• Dr. Dustin Tyler

Dr. Musa Audu

• Audu ML, Kirsch RF, Triolo RJ. “A Computational Technique for Determining the Ground Reaction Forces in Human Bipedal Stance”. Journal of Applied Biomechanics, vol. 19, No. 4, pp. 361-371, November 2003.

Dr. Kath Bogie

• Bogie KM, Ho CH, Terris DD. Clinical evidence for new pressure ulcer treatment modalities. Long-Term Care Interface, 43-47, June 2005
• Bogie KM, Bader DL. Susceptibility of spinal cord injured individuals to pressure ulcers. Pressure Ulcer Research, Eds: Bader D, Bouten C, Colin D, Oomens C. Springer-Verlag, 73-88, 2005
• Creasey GH, Ho CH, Triolo RJ, Gater DR, DiMarco AF, Bogie KM, Keith MW. Clinical applications of electrical stimulation after spinal cord injury. J Spinal Cord Med. 2004;27(4):365-75
• Bogie KM, Triolo RJ. The effects of regular use of neuromuscular electrical stimulation on tissue health, J. Rehab. Research and Development, 40(6)469-475, 2003.

Dr. Edward Chadwick

• Praagman M, Chadwick EK, van der Helm FC, Veeger HE (2006) The relationship between two different mechanical cost functions and muscle oxygen consumption. J Biomech. 39(4):758-65.
• van Drongelen S, van der Woude LH, Janssen TW, Angenot EL, Chadwick EK, Veeger HE. (2006) Glenohumeral joint loading in tetraplegia during weight relief lifting: a simulation study. Clin Biomech 21(2):128-37.
• Veeger HE, Magermans DJ, Nagels J, Chadwick EK, van der Helm FC. (2006) A kinematical analysis of the shoulder after arthroplasty during a hair combing task. Clin Biomech 21 Suppl 1:S39-44.
• van Drongelen S, Van Der Woude LH, Janssen TW, Angenot EL, Chadwick EK, Veeger HE. (2005) Glenohumeral contact forces and muscle forces evaluated in wheelchair related ADL in able-bodied vs. persons with paraplegia and tetraplegia. Arch Phys Med Rehabil; 86(7):1434-40.
• Van Drongelen S, Van Der Woude LH, Janssen TW, Angenot EL, Chadwick EK, Veeger HE. (2005) Mechanical load on the upper extremity during wheelchair ADL. Arch Phys Med Rehabil 86(6):1214-20.
• Magermans DJ, Chadwick EK, Veeger HE, van der Helm FC. (2005) Requirements for upper extremity motions during activities of daily living. Clin Biomech 20(6):591-9.
• Chadwick EK, van Noort A and van der Helm FC (2004) Biomechanical analysis of scapular neck malunion - a simulation study. Clinical Biomechanics 19, 906-12.
• Magermans DJ, Chadwick EK, Veeger HE, Rozing PM and van der Helm FC (2004) Biomechanical analysis of tendon transfers for massive rotator cuff tears. Clinical Biomechanics 19, 350-7.
• Magermans DJ, Chadwick EK, Veeger HE, Rozing PM and van der Helm FC (2004) Effectiveness of tendon transfers for massive rotator cuff tears - a simulation study. Clinical Biomechanics 19, 116-22.

Dr. John Chae

• Chae J, Hart R. Intramuscular hand neuroprosthesis for chronic stroke survivors, Neurorehabilitation Neural Repair, 17:109-117, 2003.
• Chae J, Yang G, Labatia I. Upper limb motor function in chronic hemiparesis: Concurrent validity of the arm motor ability test, Am J Phys Med Rehabil, 82:1-8, 2003.
• Chae J. Neuromuscular electrical stimulation for motor relearning in hemiparesis, Physical Medicine and Rehabilitation Clinics of North America, 14:S93-S109, 2003.
• Park BK, Chae J, Lee YH, Yang G, Labatia I. Median nerve somatosensory evoked potentials and upper limb motor function in hemiparesis, Electromyogr Clin Neurophysiol, 43:169-179, 2003.

Dr. Patrick Crago

• Memberg WD, Crago PE, Keith MW. Restoration of elbow extension via FES in individuals with tetraplegia, J. Rehab. Research and Development, 40(6):477-486, 2003.
• Lin CC, Crago PE. A structural model of the muscle spindle, Ann Biomed Eng, 30:68-83, 2002.
• Lin CC, Crago PE. Neural and mechanical contributions to the stretch reflex: A model synthesis, Ann Biomed Eng, 30:54-67, 2002.
• Neustadter DM, Drushel RF, Crago PE, Adams BW, Chiel HJ. A kinematic model of swallowing in Aplysia californica based on radula/odontophore kinematics and in vivo MRI, J. Exp. Biol. 205:3177-3205, 2002.
• Perreault EJ, Kirsch RF, Crago PE. Voluntary control of static endpoint stiffness during force regulation tasks, J. Neurophysiology, 87:2808-16, 2002.

Dr. Graham Creasey

• Fajardo NR, Pasiliao RV, Modeste-Duncan R, Creasey GH, Bauman WA, Korsten MA. Decreased colonic motility in persons with chronic spinal cord injury, Am J Gastroenterol, 98(1):128-34, 2003.
• Gustafson KJ, Creasey GH, Grill WM. A catheter based method to activate urethral sensory nerve fibers, Journal of Urology, 170(1):126-129, 2003.
• Lee YH, Creasey GH, Lim H, Song J, Song K, Kim J. Detrusor and blood pressure responses to dorsal penile nerve stimulation during hyperreflexic contraction of the bladder in patients with cervical cord injury, Arch Phys Med Rehabil, 84(1):136-40, 2003.

Dr. Janis Daly

• Daly JJ. "The FNS project", Rehabilitation Management, 16(2):33-35, 2003.

Dr. Ken Gustafson

• Gustafson KJ, Creasey GH, Grill WM. A catheter based method to activate urethral sensory nerve fibers, Journal of Urology, 170(1):126-129, 2003.
• Gustafson KJ, Guilbeau EJ, Sweeney JD. Linear performance characteristics of latissimus dorsi muscle: Potential for cardiac assistance, American Society for Artificial Internal Organs Journal, 49(5):572-577, 2003.
• Gustafson KJ, Sweeney JD, Gibney J, Fiebig-Mathine LA. Skeletal muscle ventricle pressure-volume properties conform to dynamic and static conditioning, Annals of Thoracic Surgery, 76(3):828-835, 2003.

Dr. Elizabeth Hardin

• Hardin, E.C., Su, A. and van den Bogert, A.J. (In press). Pre-impact lower extremity posture and brake pedal force predict foot and ankle forces during an automobile collision. Journal of Biomechanical Engineering.
• Hardin, E.C., Su, A. and van den Bogert, A.J. (2004). Foot and ankle forces during an automobile collision: The influence of muscles. Journal of Biomechanics 37(5):637-644.
• Hardin, E.C. , van den Bogert, A.J. and Hamill, J. (2004). Kinematic adaptations during running: effects of footwear, surface and duration. Medicine and Science in Sports and Exercise 36(5):838-844.
• Hardin, E.C. and Hamill, J. (2002). The influence of midsole cushioning on mechanical and hematological responses during a prolonged run. Research Quarterly, 73(2):125-133.
• Hardin, E.C., Su, A. and van den Bogert, A.J. (2004). Foot flexibility contributes to stability of unsupported open-loop controlled walking. 14th European Society of Biomechanics.

Dr. Chester Ho

• Ho C, Burke DT. Burn and wound therapy, Comprehensive Aquatic Therapy, Cole A Becker B, Butterworth Heinemann, Philadelphia, 2003.

Dr. Harry Hoyen

• Keith MW, Hoyen H. Indications and future directions for upper limb neuroprostheses in tetraplegic patients: a review, Hand Clinics, 18:519-528, 2002.
• Hoyen HA, Williams P, Gonzalez E, Keith MW: Management of paralyzed elbow in tetraplegia. Hand Clinics, 18:113-133,2002.

Dr. Michael Keith

• Memberg WD, Crago PE, Keith MW. Restoration of elbow extension via FES in individuals with tetraplegia, J. Rehab. Research and Development, 40(6):477-486, 2003.
• Kilgore KL, Peckham PH, Keith MW, Montague FW, Hart RL, Gazdik MM, Bryden AM, Snyder SA, Stage TG. The durability of implanted electrodes and leads in an upper extremity neuroprostheses, J. Rehab. Research and Development, 40(6):457-468, 2003.
• Bhadra N, Peckham PH, Keith MW, Kilgore KL, Montague FW, Gazdik MM, Stage TG. Implementation of an implantable joint angle transducer, J. Rehab. Research and Development, 39(3):411-422, 2002.
• Knutson JS, Naples GG, Peckham PH, Keith MW. Electrode fracture rates and occurrences of infection and granuloma associated with percutaneous intramuscular electrodes in upper extremity functional electrical stimulation applications, J. Rehab. Research and Development, 39(6):671-684, 2002.
• Keith MW, Hoyen H. Indications and future directions for upper limb neuroprostheses in tetraplegic patients: a review, Hand Clinics, 18:519-528, 2002.
• Murray WM, Bryden AM, Kilgore KL, Keith MW. The influence of elbow position on the range of motion of the wrist following transfer of the brachioradialis to the extensor carpi radialis brevis tendon, J. Bone Joint Surgery, 84A(12):2203-2210, 2002.
• Peckham PH, Kilgore KL, Keith MW, Bryden AM, Bhadra N, Montague FW. An advanced neuroprosthesis for restoration of hand and upper arm control using an implantable controller, J. Hand Surgery, 27A:265-276, March 2002.

Dr. Kevin Kilgore

• Bhadra N, Kilgore KL, High-frequency electrical conduction block of mammalian peripheral motor nerve, Muscle and Nerve, 32, 782-790, 2005.
• Bryden AM, Kilgore KL, Kirsch RF, Memberg WD, Peckham PH, Keith MW, An implanted neuroprosthesis for high tetraplegia, Top Spinal Cord Inj Rehabil, 10(3):38-52, 2005.
• Kilgore KL, Bhadra N, Nerve conduction block utilizing high-frequency alternating current, Medical and Biological Engineering and Computing, 42, 394-406, 2004.
• Bhadra N, Kilgore KL, Direct current electrical conduction block of peripheral nerve, IEEE Transactions on Neural Systems and Rehabilitation Engineering, 12, 313-324, 2004.
• Bryden AM, Kilgore KL, Yu D, Lind BB. Triceps denervation as a predictor of elbow flexion contractures in C5 and C6 tetraplegia, Arch Phys Med Rehabil, 85:1880-1885, 2004.
• Knutson JS, Hoyen HA, Kilgore KL, Peckham PH: Simulated neuroprosthesis state activation and hand position control using myoelectric signals from wrist muscles. J. Rehab Research and Development, 41(3B):461-472, 2004.
• Kilgore KL, Peckham PH, Keith MW, Montague FW, Hart RL, Gazdik MM, Bryden AM, Snyder SA, Stage TG. The durability of implanted electrodes and leads in upper extremity neuroprostheses. J. Rehab Research and Development 40(6):457-468, 2003.

Dr. Robert Kirsch

• Perreault EJ, Kirsch RF, Crago PE. Voluntary control of static endpoint stiffness during force regulation tasks, J. Neurophysiology, 87:2808-16, 2002.

Dr. Jayme Knutson

• Peckham, P.H., Knutson, J.S. (2005) Functional electrical stimulation for neuromuscular applications. Ann. Rev. Biomed. Eng. , 7 : 327-60.
• Knutson, J.S., Hoyen, H.A., Kilgore, K.L., Peckham, P.H. (2004) Simulated neuroprosthesis state activation and hand position control using myoelectric signals from wrist muscles. J. Rehabil. Res. Dev., 41 :461-472.
• Knutson JS, Naples GG, Peckham PH, Keith MW. Electrode fracture rates and occurrences of infection and granuloma associated with percutaneous intramuscular electrodes in upper extremity functional electrical stimulation applications, J. Rehab. Research and Development, 39(6):671-684, 2002.
• Chae, J., Fang, Z-P., Walker, M., Pourmehdi, S., Knutson, J. (2001) Intramuscular electromyographically controlled neuromuscular electrical stimulation for ankle dorsiflexion recovery in chronic hemiplegia. Am. J. Phys. Med. Rehabil., 80 :842-847.
• Knutson, J.S., Kilgore, K.L., Mansour, J.M., Crago, P.E. (2000) Intrinsic and extrinsic contributions to the passive moment at the metacarpophalangeal joint. J. Biomech. , 33 :1675-1681.

Dr. Rudi Kobetic

• Kobetic R, Marsolais EB, Triolo JT, Davy D, Gaudio R, Tashman S: Development of a Hybrid Gait Orthosis: A Case Report. The Journal Of Spinal Cord Medicine, 26(3):254-258, Fall 2003.
• Agarwal S, Kobetic R, Nandurkar S, Marsolais EB: Functional Electrical Stimulation for Walking in Paraplegia: 17-Year Follow-Up of 2 Cases, 26(1):86-91, Spring 2003.

Dr. Cameron McIntyre

• McIntyre CC, Savasta M, Kerkerian-LeGoff L, Vitek JL. (2004) Uncovering the mechanism(s) of action of deep brain stimulation: activation, inhibition, or both. Clin. Neurophysiol. 115:1239-1248.
• McIntyre CC, Savasta M, Walter BL, Vitek JL. (2004) How does deep brain stimulation work? Present understanding and future questions. J. Clin. Neurophysiol. 21:40-50.
• McIntyre CC, Grill WM, Sherman DL, Thakor NV. (2004) Cellular effects of deep brain stimulation: model-based analysis of activation and inhibition. J. Neurophysiol. 91:1457-1469.
• McIntyre CC, Mori S, Sherman DL, Thakor NV, Vitek JL. (2004) Electric field and stimulating influence generated by deep brain stimulation of the subthalamic nucleus. Clin. Neurophysiol. 115:589-595.
• Moffitt MA, McIntyre CC, Grill WM. (2004) Prediction of nerve stimulation thresholds: limitations of linear models. IEEE Trans. Biomed. Eng. 51:229-236.
• Lee DC, McIntyre CC, Grill WM. (2003) Extracellular electrical stimulation of central neurons: quantitative studies. In: Handbook of Neuroprosthetic Reseach Methods. WE Finn and PG Lopresti(eds) CRC Press, pp. 95-125.
• McIntyre CC, Thakor NV. (2002) Uncovering the mechanisms of deep brain stimulation for Parkinson’s disease through functional imaging, neural recording and neural modeling. Crit. Rev. Biomed. Eng. 30:249-281.
• McIntyre CC, Grill WM. (2002) Microstimulation of central nervous system neurons: influence of stimulus waveform and frequency on neuronal output. J. Neurophysiol. 88:1592-1604.
• McIntyre CC, Richardson AG, Grill WM. (2002) Modeling the excitability of mammalian nerve fibers: influence of afterpotentials on the recovery cycle. J. Neurophysiol. 87:995-1006.

Dr. Neal Peachey

• Sharma S, Ball SL, Peachey NS. Pharmacological studies of the mouse cone electroretinogram. Visual Neuroscience 2005;22:631-636.
• Wu J, Peachey NS, Marmorstein AD. Light-evoked responses of the mouse retinal pigment epithelium. Journal of Neurophysiology 2004;91:1134-1142.

Dr. P. Hunter Peckham

• Kilgore KL, Peckham PH, Keith MW, Montague FW, Hart RL, Gazdik MM, Bryden AM, Snyder SA, Stage TG. The durability of implanted electrodes and leads in an upper extremity neuroprostheses, J. Rehab. Research and Development, 40(6):457-468, 2003.
• Bhadra N, Peckham PH, Keith MW, Kilgore KL, Montague FW, Gazdik MM, Stage TG. Implementation of an implantable joint angle transducer, J. Rehab. Research and Development, 39(3):411-422, 2002.
• Knutson JS, Naples GG, Peckham PH, Keith MW. Electrode fracture rates and occurrences of infection and granuloma associated with percutaneous intramuscular electrodes in upper extremity functional electrical stimulation applications, J. Rehab. Research and Development, 39(6):671-684, 2002.
• Peckham PH, Kilgore KL, Keith MW, Bryden AM, Bhadra N, Montague FW. An advanced neuroprosthesis for restoration of hand and upper arm control using an implantable controller, J. Hand Surgery, 27A:265-276, March 2002.

Dr. Robert Ruff

• Ruff RL. Neurophysiology of the neuromuscular junction: Overview, Annals New York Academy of Sciences, 998:1-10, 2003.
• Shapiro BE, Ruff RL. Disorders of skeletal muscle membrane excitability: Myotonia Congenita, Paramyotonia Congenita, Periodic Paralysis and Related Disorders. Neuromuscular Disorders in Clinical Practice, Katirji B Kaminski HJ Preston DC Ruff RL Shapiro BH, Boston:Butterworth Heinemann, pp 987-1021, 2002.

Dr. Dawn Taylor

• T.M. Cowan, & D.M. Taylor. "Predicting reach goal in a continous workspace for command of a brain- controlled upper limp neuroprosthesis." Proceedings of the 2nd international IEEE EMBS Conference on Neural Engineering, 2005. Arlington VA, March 16-19, 2005: 74-77.
• S.I. Helms Tillery, D.M. Taylor, "Signal Acquisition and Analysis for Cortical Control of Neuroprosthetics." Current Opinions in Neurobiology. 2004 14: 758- 762.
• D.M. Taylor, S.I. HelmsTillery, A.B. Schwartz. "Information Conveyed Through Brain Control: Cursor versus Robot." IEEE Trans. Neural Systems Rehab Eng., June 2003 11(2): 195- 199.
• D.M. Taylor, S.I. Helms Tillery, A.B. Schwartz. "Direct 3D Control of Neuroprosthetic Devices." Science, 7 June 2002. 296:1829-1832.

Dr. Ronald Triolo

• To CS, Kirsch RF, Kobetic R, Triolo RJ. The feasibility of a functional neuromuscular stimulation powered mechanical gait orthosis with coordinated joint locking. IEEE Trans on Neural Systems and Rehab Engineering 13(2):227-235, 2005.
• Creasey GH, Ho CH, Triolo RJ, Gater DR, DiMarco AF, Bogie KM, Keith MW.Clinical applications of electrical stimulation after spinal cord injury. Journal of Spinal Cord Medicine 27(4): 365-375, 2004.
• Bieri C, Rohde L, Danford GS, Steinfeld E, Snyder S,. Triolo RJ. Development of a new assessment of effort and assistance in standing pivot transfers with FES. Journal of Spinal Cord Medicine 27:226-235, 2004
• Kukke S, Triolo RJ. The effects of trunk stimulation on bimanual seated workspace. IEEE Trans Neural Systems and Rehab Engineering 12(2): 117-185, 2004.
• Uhlir J, Triolo RJ, Kukke S, Bieri C, Davis JA. Performance of epimysial stimulating electrodes in the lower extremities of individuals with spinal cord injury. IEEE Trans on Neural Systems and Rehab Engineering 12(2):279-287, 2004.
• Amankwah K, Triolo RJ, Kirsch R. The effects of spinal cord injury on lower limb passive joint moments revealed through a non-linear viscoelastic model. Journal of Rehabilitation Research & Development 41(1): 15-32, 2004
• Bogie K, Triolo RJ. The effects of regular use of neuromuscular electrical stimulation on tissue health. Journal of Rehabilitation Research & Development 40(6): 469-476, 2003.
• Audu ML, Kirsch RF, Triolo RJ. A computational technique for determining the ground reaction forces in human bipedal stance. Journal of Applied Biomechanics 19:361-371, 2003.
• R. Kobetic, E.B. Marsolais, D. Davy, R. Gaudio, R. Triolo. Development of a hybrid gait orthosis: a case report. Journal of Spinal Cord Medicine 26(3): 254-258, 2003.
• S. Agarwal, R.J. Triolo, R. Kobetic, M. Miller, C. Bieri, S. Kukke, L. Rohde, J.A. Davis. Long term user perceptions of an implanted neuroprosthesis for exercise, standing and transfers after spinal cord injury. Journal of Rehabilitation Research & Development 40(3): 214-234, 2003.
• Agarwal S, Triolo RJ, Kobetic R, Miller M, Bieri C, Kukke S, Rohde L, Davis JA. Long term user perceptions of an implanted neuroprosthesis for exercise, standing and transfers after spinal cord injury, J. Rehab. Research and Development, 40(3):241-252, 2003.
• Bogie KM, Triolo RJ. The effects of regular use of neuromuscular electrical stimulation on tissue health, J. Rehab. Research and Development, 40(6)469-475, 2003.

Dr. Dustin Tyler

• Tyler DJ, Durand DM. "Chronic response of the rat sciatic nerve to the flat interface nerve electrode," Ann Biomed Eng, 31(6):633-42, 2003.