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51. Kao PC, Lewis CL and Ferris DP (2009) Invariant ankle moment patterns when walking with and without a robotic ankle exoskeleton. Journal of Biomechanics, in press. PDF
50. Huang HJ and Ferris DP (2009) Upper limb effort does not increase maximal voluntary muscle activation in individuals with incomplete spinal cord injury. Clinical Neurophysiology, 120:1741-1749. PDF
49. Cherry MS, Kota S and Ferris DP (2009) An elastic exoskeleton for assisting human running. Proceedings of the International Design Engineering Technical Conferences & Computers and Information in Engineering Conference (IDETC/CIE), August 30-September 2, San Diego, CA, USA, DETC2009-87355. PDF
48. Simon AM, Kelly BM and Ferris DP (2009) Preliminary trial of symmetry-based resistance in individuals with post-stroke hemiparesis. Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Minneapolis, MN, 5294-5299. PDF
47. Reinkensmeyer DJ, Akoner OM, Ferris DP and Gordon KE (2009) Slacking by the human motor system: computational models and implications for robotic orthoses. Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Minneapolis, MN, 2129-2132. PDF
46. Ferris DP and Lewis CL (2009) Robotic lower limb exoskeletons using proportional myoelectric control. Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Minneapolis, MN, 2119-2124. PDF
45. Domingo A and Ferris DP (2009) Effects of physical assistance on learning balance during narrow beam walking. Gait and Posture, 30:464-468. PDF
44. Klimstra MD, Thomas E, Stoloff RH, Ferris DP and Zehr EP (2009) Neuromechanical considerations for incorporating rhythmic arm movement in the rehabilitation of walking. Chaos, 19:026102. PDF
43. Ferris DP (2009) The exoskeletons are here. Journal of Neuroengineering and Rehabilitation, 6:17. PDF
42. Sawicki GS and Ferris DP (2009) A pneumatically powered knee-ankle-foot orthosis (KAFO) with myoelectric activation and inhibition. Journal of Neuroengineering and Rehabilitation, 6:23. PDF
41. Huang HJ and Ferris DP (2009) Excitatory neural coupling between upper and lower limbs is bidirectional and ipsilateral. Medicine and Science in Sports and Exercise, 41:1778-1789. PDF
40. Sawicki GS, Lewis CL and Ferris DP (2009) It pays to have a spring in your step. Exercise and Sport Sciences Reviews, 37:130-138. PDF
39. Simon AM, Kelly BM and Ferris DP (2009) Sense of effort determines lower limb force production during dynamic movement in individuals with post-stroke hemiparesis. Neurorehabilitation and Neural Repair, 23:811-818. PDF
38. Gordon KE, Ferris DP and Kuo AD (2009) Metabolic and mechanical energy costs of reducing vertical center of mass movement during gait. Archives of Physical Medicine and Rehabilitation, 90:136-144. PDF
37. Kinnaird CR and Ferris DP (2009) Medial gastrocnemius myoelectric control of a robotic ankle exoskeleton for human walking. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 17:31-37. PDF
36. Kao P-C and Ferris DP (2009) Motor adaptation during dorsiflexion-assisted walking with a powered orthosis. Gait and Posture, 29:230-236. PDF
35. Collins SH, Adamczyk PG, Ferris DP and Kuo AD (2009) A simple method for calibrating force plates and treadmills using an instrumented pole. Gait and Posture, 29:59-64. PDF
34. Sawicki GS and Ferris DP (2009) Mechanics and energetics of incline walking with robotic ankle exoskeletons. Journal of Experimental Biology, 212:32-41. PDF
33. Sawicki GS and Ferris DP (2009) Powered ankle exoskeletons reveal the metabolic cost of plantar flexor mechanical work during walking with longer steps at constant step frequency. Journal of Experimental Biology, 212:21-31. PDF
32. Lewis CL and Ferris DP (2008) Walking with increased ankle pushoff decreases hip moments. Journal of Biomechanics, 41:2082-9. PDF
31. Pelc E, Daley MA, and Ferris DP (2008) Resonant hopping of a robot controlled by an artificial neural oscillator. Bioinspiration and Biomimetics, 3(2):26001. PDF
30. Sawicki GS and Ferris DP (2008) Mechanics and energetics of level walking with powered ankle exoskeletons. Journal of Experimental Biology, 211:1402-13. PDF
29. Simon AM and Ferris DP (2008) Lower limb force production and bilateral force asymmetries are based on sense of effort. Experimental Brain Research, 187:129-38. PDF
28. Cain S, Gordon KE and Ferris DP (2007) Human motor adaptation during walking with a powered ankle-foot orthosis depends on control method. Journal of Neuroengineering and Rehabilitation, 4:48. PDF
27. Ferris DP, Sawicki GS and Daley MA (2007) A physiologist's perspective on robotic exoskeletons for human locomotion. International Journal of Humanoid Robotics, 4:507–528. PDF
26. Zehr EP, Balter JE, Ferris DP, Hundza SR, Loadman P and Stoloff RH (2007) Neural control of rhythmic arm and leg movement is conserved across human locomotor tasks. Journal of Physiology, 582:209-227. PDF
25. Domingo A, Sawicki GS, and Ferris DP (2007) Kinematics and muscle activity of individuals with incomplete spinal cord injury during treadmill stepping with and without manual assistance. Journal of Neuroengineering and Rehabilitation, 4:32. PDF
24. Gordon KE and Ferris DP (2007) Learning to walk with a robotic ankle exoskeleton. Journal of Biomechanics, 40:2636-2644. PDF
23. Stoloff RH, Zehr EP and Ferris DP (2007) Recumbent stepping has similar but simpler neural control compared to walking. Experimental Brain Resesarch, 178:427-438. PDF
22. Simon AM, Gillespie RB and Ferris DP (2007) Symmetry-based resistance as a novel means of lower limb rehabilitation. Journal of Biomechanics, 40:1286-1292. PDF
21. Cherry MS, Choi DJ, Deng KJ, Kota S and Ferris DP (2006) Design and fabrication of an elastic knee orthosis - preliminary results. Proceedings of the International Design Engineering Technical Conference & Computers and Information in Engineering Conference, September 10-13, Philadelphia, USA, DETC2006-99622. PDF
20. Ferris DP, Huang HJ and Kao P-C (2006) Moving the arms to activate the legs. Exercise and Sport Sciences Reviews, 34:113-120. PDF
19. Gordon KE, Sawicki GS and Ferris DP (2006) Mechanical performance of artificial pneumatic muscles to power an ankle-foot orthosis. Journal of Biomechanics, 39:1832-1841. PDF
18. Ferris DP, Gordon KE, Sawicki GS and Peethambaran A (2006) An improved powered ankle-foot orthosis using proportional myoelectric control. Gait and Posture, 23:425-428. PDF
17. Sawicki GS, Domingo A and Ferris DP (2006) The effects of powered ankle foot orthoses on muscle activation and joint kinematics during walking by individuals with incomplete spinal cord injury. Journal of Neuroengineering and Rehabilitation, 3(1):3. PDF
16. Ferris DP, Bohra ZA, Lukos JR and Kinnaird CR (2006) Neuromechanical adaptation to hopping with an elastic ankle-foot orthosis. Journal of Applied Physiology, 100:163-170. PDF
15. Ferris DP, Sawicki GS and Domingo AR (2005) Powered lower limb orthoses for gait rehabilitation. Topics in Spinal Cord Injury Rehabilitation, 11:34-49. PDF
14. Sawicki GS, Gordon KE and Ferris DP (2005) Powered lower limb orthoses: applications in motor adaptation and rehabilitation. IEEE Proceedings of the International Conference on Rehabilitation Robotics, 206-211. PDF
13. Danek KA, Gillespie RB, Aldridge JW, Ferris DP and Grizzle JW (2005) A dual input device for self-assisted control of a virtual pendulum. IEEE Proceedings of the International Conference on Rehabilitation Robotics, 313-318. PDF
12. Ferris DP, Czerniecki JM and Hannaford B (2005) An ankle-foot orthosis powered by artificial pneumatic muscles. Journal of Applied Biomechanics, 21:189-197. PDF
11. Kao P-C and Ferris DP (2005) The effect of movement frequency on interlimb coupling during recumbent stepping. Motor Control, 9:144-163. PDF
10. Gordon KE and Ferris DP (2004) Proportional myoelectric control of a virtual object to investigate human efferent control. Experimental Brain Research, 159:478-486. PDF
9. Huang HJ and Ferris DP (2004) Neural coupling between upper and lower limbs during recumbent stepping. Journal of Applied Physiology, 97:1299-1308. PDF
8. Ferris DP, Gordon KE, Beres JA and Harkema SH (2004) Muscle activation during unilateral stepping occurs in the nonstepping limb of humans with clinically complete spinal cord injury. Spinal Cord, 42:14-23. PDF
7. Ferris DP, Aagaard P, Simonsen EB, Farley CT, and Dyhre-Poulsen P (2001) Soleus H-reflex gain in humans walking and running under simulated reduced gravity. Journal of Physiology, 530:167-180. PDF
6. Ferris DP, Liang K and Farley CT (1999) Runners adjust leg stiffness for their first step on a new running surface. Journal of Biomechanics, 32:787-794. PDF
5. Ferris DP, Louie M and Farley CT (1998) Running in the real world: adjusting leg stiffness for different surfaces. Proceedings of the Royal Society of London: Biological Sciences, 265:989-994 (cover). PDF
4. Farley CT and Ferris DP (1998) Biomechanics of walking and running: from center of mass movement to muscle action. Exercise and Sport Sciences Reviews, 26:253-285. PDF
3. Ferris DP and Farley CT (1997) Interaction of leg stiffness and surface stiffness during human hopping. Journal of Applied Physiology, 82:15-22 (cover). PDF
2. Kram R, Domingo A and Ferris DP (1997) Effect of reduced gravity on the preferred walk-run transition speed. Journal of Experimental Biology, 200:821-826. PDF
1. Ferris DP, Signorile JF and Caruso JF (1995) The relationship between physical and physiological variables and volleyball spiking velocity. Journal of Strength and Conditioning Research, 9:32-36. PDF