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Publications

Refereed Publications (published or in press)

  • Kautz SA, Patten C, and Neptune, RR: "Does Unilateral Pedaling Activate a Rhythmic Locomotor Pattern in the Non-pedaling Leg in Post-stroke Hemiparesis?" in press, Journal of Neurophysiology.

  • Neptune, R.R. and Hull, M.L. (1992). A new electromechanical ski binding with release sensitivity to torsion and bending moments. International Journal of Sport Biomechanics 8(4): 331-349.

  • Kautz, S.A., Hull, M.L,. and Neptune, R.R. (1994). A comparison of muscular mechanical energy expenditure and internal work in cycling. Journal of Biomechanics 27(12): 1459-1467.

  • Neptune, R.R. and Hull, M.L. (1995). Accuracy assessment of methods for determining hip movement in seated cycling. Journal of Biomechanics 28(4): 423-437.

  • Neptune, R.R. and Hull, M.L. (1996). Methods for determining hip movement in seated cycling and their effect on kinematics and kinetics. Journal of Applied Biomechanics 12(4): 493-507.

  • Boyd, T.F., Neptune, R.R., and Hull, M.L. (1997). Pedal and knee loads using a multi-degree-of-freedom pedal platform in cycling. Journal of Biomechanics 30(5): 505-511.

  • Neptune, R.R., Kautz, S.A., and Hull, M.L. (1997). The effect of pedaling rate on coordination in cycling. Journal of Biomechanics 30(10): 1051-1058.

  • Neptune, R.R. and Bogert, A.J. van den (1998). Standard mechanical energy analyses do not correlate with muscle work in cycling. Journal of Biomechanics 31(3): 239-245.

  • Neptune, R.R. and Hull, M.L. (1998). Evaluation of performance criteria for simulation of submaximal steady-state cycling using a forward dynamic model. Journal of Biomechanical Engineering 120(3): 334-341.

  • Wright, I.C., Neptune, R.R, Bogert, A.J. van den, and Nigg, B.M. (1998). Passive regulation of impact forces in heel-toe running. Clinical Biomechanics 13(7): 521-531.

  • Neptune, R.R. and Hull, M.L. (1999). A theoretical analysis of preferred pedaling rate selection in endurance cycling. Journal of Biomechanics 32(4): 409-415.

  • Neptune, R.R., Wright, I.C., and Bogert, A.J. van den (1999). Muscle coordination and function during cutting movements. Medicine and Science in Sports and Exercise 31(2) 294-302.

  • Neptune, R.R. (1999). Optimization algorithm performance in determining optimal controls in human movement analyses. Journal of Biomechanical Engineering 121(2): 249-252.

  • Smak, W., Neptune, R.R., and Hull, M.L. (1999). The influence of pedaling rate on bilateral asymmetry in cycling. Journal of Biomechanics 32(9): 899-906.

  • Neptune, R.R. and Herzog, W. (1999). The association between negative muscle work and pedaling rates. Journal of Biomechanics 32(10): 1021-1026.

  • Neptune, R.R., Kautz, S.A. and Zajac, F.E. (2000). Muscle contributions to specific biomechanical functions do not change in forward versus backward pedaling. Journal of Biomechanics 33(2): 155-164.

  • Neptune, R.R. and Herzog, W. (2000). Adaptation of muscle coordination to altered task mechanics during steady-state cycling. Journal of Biomechanics 33(2): 165-172.

  • MacIntosh, B.R., Neptune, R.R., and Horton, J. (2000). Cadence, power and muscle activation in cycle ergometry. Medicine and Science in Sports and Exercise 32(7): 1281-1287.

  • Wright, I.C., Neptune, R.R., Bogert, A.J. van den and Nigg, B.M. (2000). The influence of foot positioning on ankle sprains. Journal of Biomechanics 33(5): 513-519.

  • Neptune, R.R. and Kautz, S.A. (2000). Knee joint loading in forward versus backward pedaling: implications for rehabilitation strategies. Clinical Biomechanics 15(7): 528-535.
    Abstract

  • Neptune, R.R., Wright, I.C., Bogert, A.J. van den (2000). A method for numerical simulation of single limb ground contact events: application to heel-toe running. Journal of Computer Methods in Biomechanics and Biomedical Engineering 3(4): 321-334.

  • Neptune, R.R, Wright, I.C., Bogert, A.J. van den (2000). The influence of orthotic devices and vastus medialis strength on patella-femoral loads during running. Clinical Biomechanics 15(8): 611-618.

  • Wright, I.C., Neptune, R.R., Bogert, A.J. van den and Nigg, B.M. (2000). Running on uneven surfaces: a comparison of theoretical and experimental results. Journal of Biomechanical Engineering (in press).
  • Wright, I.C., Neptune, R.R., Bogert, A.J. van den and Nigg, B.M. (2000). The influence of foot positioning on ankle sprains. Journal of Biomechanics 33(5): 513-519.
  • Neptune, R.R. and Kautz, S.A. (2000). Knee joint loading in forward versus backward pedaling: implications for rehabilitation strategies. Clinical Biomechanics 15(7): 528-535.
  • Kautz SA, Neptune RR. Biomechanical determinants of pedaling energetics: internal and external work are not independent. Exer Sports Sci Rev, 30: 159-165, 2002.
  • Zajac FE, Neptune RR, Kautz SA. Biomechanics and muscle coordination of human walking: Part I: Introduction to concepts, power transfer, dynamics and simulations. Gait Posture, 16: 215-232, 2002.


Editorial Invitations

  • Kautz, S.A., Neptune, R.R. and Zajac, F.E. (2000). General coordination principles elucidated by forward dynamics: minimum fatigue does not explain muscle excitation in dynamic tasks. Motor Control 4(1): 101-106.

  • Neptune, R.R. (2000). Computer modeling and simulation of human movement: applications in sport and rehabilitation. Physical Medicine and Rehabilitation Clinics of North America 11(2): 417-434.

  • Neptune, R.R. and Kautz, S.A. (2000). Muscle activation and deactivation dynamics: the governing properties in fast cyclical human movement performance? Exercise and Sport Science Reviews (in press).
  • Neptune, R.R. (2000). Computer modeling and simulation of human movement: applications in sport and rehabilitation. Physical Medicine and Rehabilitation Clinics of North America 11(2): 417-434.

  • Zajac FE, Neptune, R.R., Kautz SA. Biomechanics and muscle coordination of human walking: Part II: Lessons from dynamical simulations and clinical applications. Gait and Posture, 17: 1-17, 2003.


Book Chapters

  • Neptune, R.R and Hull, M.L. (1996). A new electromechanical ski binding with release sensitivity to torsion and bending moments transmitted by the leg. Skiing Trauma and Safety: Tenth Volume, ASTM STP 1266, C.D. Mote, Jr., R.J. Johnson, Wolfhart Hauser, and Peter S. Schaff, Eds., pp. 339-353.

  • MacIntosh, B.R., Neptune, R.R., and Bogert, A.J. van den (2000). Intensity and cycling ergometry: power output and energy cost.. Biomechanics and Biology of Movement. Nigg, B.M., MacIntosh, B.R. and Mester, J. (Eds.). Human Kinetics, Champaign, IL., pp. 129-148.


Abstracts and Conference Proceedings

  • Neptune, R.R. and Hull, M.L. (1993). A new electromechanical ski binding with release sensitivity to torsion and bending moments transmitted by the leg. Abstracts for 10th International Congress of Skiing Safety. Kaprun, Zell and See, Austria, pp. 14.

  • Neptune, R.R. and Hull, M.L. (1994). Accuracy assessment of methods for determining hip movement in seated cycling. Abstracts of the Second World Congress of Biomechanics. The Second World Congress of Biomechanics, July 10-15 1994, Amsterdam, The Netherlands, pp. 145.

  • Neptune, R.R. and Hull, M.L. (1997). Simulation of submaximal steady-state cycling using a forward dynamic model. Proceedings of the American Society of Mechanical Engineers Bioengineering Conference, June 11-15, Sun River, Oregon, pp. 561-562.

  • Neptune, R.R. and Bogert, A.J. van den (1997). Optimization algorithm performance: Application to optimal controls in cycling. Proceedings of the VIth International Symposium on Computer Simulation in Biomechanics, August 21-23, Tokyo, Japan, pp. 36-39.

  • Wright, I.C., Neptune, R.R., and Bogert, A.J. van den (1997). The regulation of impact forces in running. Proceedings of the Third International Symposium on Footwear Biomechanics, August 21 - 23, Tokyo, Japan.

  • Neptune, R.R., Hull, M.L. and Kautz, S.A. (1997). The effect of pedaling rate on coordination in cycling. Proceedings of the XVIth Congress of the International Society of Biomechanics, August 25 - 29, Tokyo, Japan, pp. 271.

  • Wright, I.C., Neptune, R.R., and Bogert, A.J. van den (1997). Three dimensional simulation of running. Proceedings of the XVIth Congress of the International Society of Biomechanics, August 25 - 29, Tokyo, Japan, pp. 407.

  • Neptune, R.R. and Hull, M.L. (1998). Analysis of preferred pedaling rate selection in endurance cycling using a forward dynamic simulation. Abstracts of the Third World Congress of Biomechanics, August 2-8 1998, Sapporo, Japan, pp. 417.

  • Neptune, R.R., Wright, I.C., and Bogert, A.J. van den (1998). Analysis of muscle coordination and function during cutting movements. Proceedings of the XIIth Congress of the International Society for Electrophysiology and Kinesiology, (Editors: A.B. Arsenault, P. McKinley, B. McFadyen), June 27-30, Montreal, Quebec, pp. 38-39.

  • Neptune, R.R., Wright, I.C., and Bogert, A.J. van den (1998). The influence of orthotics and vastus medialis strength on patella-femoral loads in running. Proceedings of NACOB ’98. The Third North American Congress on Biomechanics, August 14-18, Waterloo, Ontario, pp. 341-342.

  • Wright, I.C., Neptune, R.R., and Bogert, A.J. van den (1998). The effects of ankle stiffness and flexibility on ankle sprains. Proceedings of NACOB ’98. The Third North American Congress on Biomechanics , August 14-18, Waterloo, Ontario, pp. 477-478.

  • Neptune, R.R., and Herzog, W. (1999). Adaptation of muscle coordination to environmental changes during steady-state cycling. Book of abstracts of the International Society of Biomechanics XVIIth Congress, August 8 - 13, Calgary, Canada, pp. 925.

  • Neptune, R.R., and Herzog, W. (1999). The association between negative muscle work and preferred pedaling rates. Book of abstracts of the International Society of Biomechanics XVIIth Congress, August 8 - 13, Calgary, Canada, pp. 312.

  • Neptune, R.R, Kautz, S.A., and Zajac, F.E. (1999). Muscle contributions to specific biomechanical functions do not change in forward versus backward pedaling. Proceedings of the VIIth International Symposium on Computer Simulation in Biomechanics, August 5 - 7, Calgary, Canada, pp. 104-107.

  • Neptune, R.R., Wright, I.C., and Bogert, A.J. van den (1999). Simulation of lower extremity injuries in sport. Proceedings of the VIIth International Symposium on Computer Simulation in Biomechanics, August 5 - 7, Calgary, Canada, pp. 96-99.

  • Ting, L.H., Kautz, S.A., Neptune, R.R., and Zajac, F.E. (1999). Functional muscle groups as a basis for neural control of pedaling. 14th Symposium of the International Society for Posture and Gait Research, July 10 - 15, 1999, Waterloo, Canada. Gait and Posture, 9(S1): S61.

  • R.R. Neptune and S.A. Kautz (2000). Patellofemoral joint loading in forward versus backward pedaling: implications for rehabilitation strategies. Proceedings of the 11th ICMMB International Conference on Mechanics in Medicine and Biology, April 2 - 5, Maui, Hawaii, pp. 15-18.

  • Kautz SA, Neptune RR, Zajac FE, Worthen L, Dairaghi CA. Muscle function during forward and backward walking. 4th World Congr Biomechanics, Calgary, Canada, Aug, 2002.

  • Kautz SA, Neptune RR. Biomechanical determinants of pedaling energetics: internal and external work are not independent 4th World Congr Biomechanics, Calgary, Canada, Aug, 2002.

  • Neptune RR, Kautz SA, Zajac FE. Muscle force not work defines muscle contributions to forward progression. 4th World Congr Biomechanics, Calgary, Canada, Aug, 2002.

  • Zajac FE, Neptune RR, Kautz SA. Muscle contributions to trunk forward progression and support in walking. Proc 3rd VA Natl Rehab Res Dev Conf, pp 119-120, 2002.

  • Higginson JS, Zajac FE, Kautz SA, Neptune RR, Delp SL, Burgar CG. Can intrinsic mechanisms of equinus result in knee extension? Proc 8th Ann Mtg Gait and Clinical Movement Analysis Soc, 63-64, 2003.

Last updated 04/05/2006