|
| Papers and Presentations -- Ambulation Studies | |||||||||||||||||||||||||||
| |||||||||||||||||||||||||||
| View All | View Papers Only | View Presentations Only 2005 Moosabhoy, M.A. and Gard, S.A. (2005). Development and Analysis of Methodology for Determining the Sensitivity of Swing Leg Toe Clearance and Effective Leg Length to Swing Leg Joint Angles During Gait. Human Movement Science. 2004 Hansen, A. & Childress, D. (2004) Effects of Shoe Heel Height on Biologic Roll-over Characteristics During Walking. Journal of Rehabilitation Research and Development, Vol. 41, No. 4, 547-554. Hansen, A., Childress, D., Knox, E. (2004) Roll-over Shapes of Human Locomotor Systems: Effects of Walking Speed. Clinical Biomechanics, Vol. 19, No. 4, 407-414. Hansen, A., Childress, D., Miff, S. (2004) Roll-over Characteristics of Human Walking on Inclined Surfaces. Human Movement Science, Vol. 23, No. 6, 807-821. Hansen, A.H., Childress, D.S., Miff, S.C., Gard, S.A. and Mesplay, K.P. (2004). The Human Ankle During Walking: Implications for Design of Biomimetic Ankle Prostheses and Orthoses. Journal of Biomechanics, 37(10), 1467-1474. Miff, S., Childress, D., Hansen, A., Gard, S. and Meier, M. (2004). The Behavior of the Knee-Ankle-Foot System During Gait Initiation, Steady-State Walking and Gait Termination. 9th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Lexington, KY, April 21-24. Miff, S., Childress, D., Hansen, A., Gard, S. and Meier, M. (2004). Temporal-spatial Symmetries During Gait Initiation and Termination. 9th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Lexington, KY, April 21-24. 2003 Childress, D.S., Miff, S.C. and Gard, S.A. (2003). When Some Gait Determinants Fail, Some Equations Can Eventuate. Annual Meeting of the American Society of Biomechanics (ASB), Toledo, OH, USA, September 25-27. Gard, S.A. and Fatone, S. (2003). Biomechanics of Lower Limb Function and Gait. Invited speaker for the ISPO Consensus Conference on "Orthotic Management of Stroke Patients", Ellecom, The Netherlands, September 21-26. Gard, S.A. and Fatone, S. (2003). Biomechanics of Lower Limb Function and Gait. Report of a Consensus Conference on the Orthotic Management of Stroke Patients, ISPO (International Society for Prosthetics and Orthotics), Copenhagen, Denmark. Hansen, A., Childress, D., Miff, S. (2003) Roll-over Characteristics of Human Walking on Ramped Surfaces. 8th Annual Gait and Clinical Movement Analysis Society Meeting, presented in Wilmington, DE, May 7-10. Hansen, A.H., Childress, D.S., Miff, S. and Gard, S.A. (2003). Quasi-stiffness of the Ankle During Walking At Different Speeds -Implications for Design of Prostheses and Orthoses. Pediatric and Adult Foot and Ankle Workshop: New Horizons in Clinical Treatment and Innovative Technology, Bethesda, MD, November 15. Miff, S.C., Childress, D.S., Gard, S.A., Meier, M. and Hansen, A. (2003). Initiation of Walking: Passive or Active? 8th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Wilmington, DE, May 7-10. 2002 2001 Gard, S.A. and Childress, D.S. (2001). What Determines the Vertical Displacement of the Body During Normal Walking? JPO: Journal of Prosthetics and Orthotics, 13(3), 64-67. Hansen, A., Childress, D. (2001) The Role of the Foot/Ankle System in Human Walking With Applications for Artificial Limbs. Invited Speaker Northwestern University Biomedical Engineering Department Seminar, presented in Evanston, Illinois, November 28. Hansen, A., Childress, D., Brunner, J. (2001) Effects of Shoe Heel Height on the Roll-over Shapes of Foot/Ankle Systems. Book of Abstracts for the 10th World Congress of the International Society for Prosthetics and Orthotics, p. T01.2, presented in Glasgow, Scotland, July 3. Miff, S.C., Childress, D.S. and Gard S.A. (2001). Vertical Excursion of the Trunk During Gait is Determined by Step Length. 6th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Sacramento, CA, April 25th-28th. Weir, R. F. ff., (2001). Development of a Portable, Real Time, 3-D Single Marker Gait Evaluation System. Research Project Update, Capabilities, Vol. 10, No. 4, p. 4, Autumn 2001. Weir, R. F. ff.,and Childress, D. S., (2001). A Three-Dimensional, Single Marker, Gait Analysis System for Real-Time Use in Small Clinical Facilities . Proceedings of the 10th World Congress of the International Society for Prosthetics and Orthotics (ISPO), Glasgow, UK, July 1st - July 6th, p. MO8.2. Weir, R. F. ff., (2001). Speaker for the Advanced Training Course: Overview of Gait Analysis for Prosthetists and Orthotists. American Academy of Orthotists and Prosthetists (AAOP). Northwestern Universisty September, 2001. 2000 Gard, S. A., Childress, D.S., "What Determines Vertical Motion of the Human body During Normal Gait?" Fifth Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Rochester, MN. April 12 - 15, 2000 Gard, S.A., Childress, D.S., Konz, R.J. and Grahn, E.C., "The VA Chicago Motion Analysis Research Laboratory: A Tool for Studying Human Movement and Evaluating Prosthetic and Orthotic Performance." Proceedings of the 2nd National VA Rehabilitation Research & Development Conference, Arlington, VA, Feb 20 - 22, 2000. Hansen, A.H., Childress, D.S., "Roll-over Shapes of Foot/Ankle Systems: Prosthetics and Orthotics Applications," Invited Speaker Midwest Chapter of the American Academy of Orthotists and Prosthetists Summer Scientific Seminar, Michigan City, Indiana, June 9, 2000 Hansen, A.H., Gard, S.A., Childress, D.S., "The Determination of Foot/Ankle Roll-over Shape: Clinical and Research Applications," IEEE/EMBS Workshop Pediatric Gait: A New Millennium in Clinical Care and Motion Analysis Technology. Chicago, Illinois. July 22, 2000. Hansen, A.H., Childress, D.S., "Roll-over Shapes of the Human Foot/Ankle Complex," Chicago 2000 World Congress on Medical Physics and Biomedical Engineering. Chicago, Illinois. July 23 - 28, 2000. Miff, S.C., Childress, D.S., and Gard S.A., "The Effect of Step Length and Cadence on the Instantaneous Forward Velocity of Walking," Fourth Annual Meeting of the American Society of Biomechanics, Chicago, Illinois, July 19 - 22, 2000 Miff, S.C., Gard, S.A. and Childress, D.S., "The Effect of Step Length, Cadence, and Walking Speed on the Trunk's Vertical Excursion," Chicago 2000 World Congress on Medical Physics and Biomedical Engineering. Chicago, Illinois. July 23 - 28, 2000. Miller, L.A. and Childress, D.S., "Propulsive Methods for Crutch Ambulation." Proceedings of the 2nd National VA Rehabilitation Research & Development Conference, Arlington, VA, Feb 20 - 22, 2000. Weir, R. F. ff., and Childress, D.S., "Portable Devices for the Clinical Measurement of Gait Performance and Outcomes" Accepted for Presentation at the Chicago 2000 World Congress on Medical Physics and Biomedical Engineering. Chicago, Illinois. July 23 - 28, 2000. Weir, R. F. ff., and Childress, D.S., "A Portable System for the Clinical Measurement of Gait Performance." Accepted for Presentation at the 12th Conference of the European Society of Biomechanics. Trinity College, Dublin, Ireland, August 27 -30, 2000. Weir, R. F. ff., Gaebler-Spira, D., and Patterson, K., "Analysis of Orthotic Effect on Functional Gait Utilizing Real-time Measurement of Instantaneous Gait Velocity as an Outcome Measure." Proceedings of the Association of Children's Prosthetic-Orthotic Clinics, Banff, Canada, April 23 - 26, 2000. 1999 Childress, D.S. and Gard, S.A., "Vertical Movement of the Trunk in Human Walking", published in the proceeding of (ISB) International Society of Biomechanics XVIIth Congress (book of abstracts), pp. 116, Aug. 8-13, 1999, Calgary, Canada. Gard, S.A. and Childress, D.S., "The Influence of the Stance-Phase Knee Flexion the Vertical Displacement of the Trunk During Normal Walking". Archives of Physical Medicine and Rehabilitation. 80(1), 26-32, January 1999. Weir, R.F., and Gaebler-Spira, D., "Pilot Study Using Instantaneous Gait Velocity Analysis as an Outcome Measure in the Clinical Management of Children with Cerebral Palsy Receiving Botulinum Toxin A and Adults with Intrathecal Baclofen," submitted as a poster to the European Academy of Childhood Disability 11th Annual Meeting, Oct. 21-23, 1999 held at the Chancellor’s hall at Senate House in London. 1998 Chan, Richmond B., Jhoun, Janet H. and Dudley S. Childress, "Comparing Standing Characteristics of Prosthesis Users and Normal Subjects Using a Tracking Model", submitted to the 1998 ASME International Mechanical Engineering Congress and Exposition, Nov. 15-20, 1998, Anaheim, CA. (NIDRR) Jhoun, Ph.D. Janet H. and Dudley S. Childress, Ph.D., "Describing Pelvic Obliquity During Gait Initiation" Technical Note, submitted to the Journal of Biomechanics, Jan. 26, 1998.(NIDRR) Miller, L.A., Sánchez-Urrutia,V., and Childress, D.S., "Assumptions in Calculations and Interpretation of Inverse Dynamics", Proceedings of the 9th World Congress of the International Society for Prosthetics and Orthotics (ISPO), pp.547-549. Amsterdam, The Netherlands, June 28 – July 5, 1998. Weir, R. F. ff, and Childress, D.S., "A Portable, Real-Time, Ultrasound Ranging Device for the Clinical Evaluation of Gait". Proceedings of the 9th World Congress of the International Society for Prosthetics and Orthotics (ISPO), pp. 385-387. Amsterdam, The Netherlands, June 28 - July 3, 1998. Weir, R. F. ff., Childress, D.S., and Licameli, J.N., Portable Ranging System for Analyzing Gait. United States Patent Number: 5,831,937. Date of Patent: November 3, 1998. Weir, R. F. ff ., "3-Dimensional, Single Marker, Gait Analysis System". Proceedings of the 1998 ASME Mechanical Engineering Congress and Exposition, Anaheim, California, BED-Vol. 39, Advances in Bioengineering , pp. 403-404, November 15 - 20, 1998. 1997 Chan, R. B., Jhoun, J.H. and Childress, D.S., "An Investigation of Tracking Behavior Exhibited During Balancing and Standing", Final Program & Abstract Book, 19th Annual International Conference of the IEEE-EMB Society, pg. 134, Oct. 30-Nov. 2, 1997 Childress, D.S. and Gard, S.A., "Investigation of Vertical Motion of the Human Body During Normal Walking". Gait & Posture, 5(2), 161, May 1997. Childress, D. S. and Gard, S.A., "Investigation of Vertical Motion of the Human Body During Normal Walking", Journal of Gait and Posture, Vol. 5, No. 2, pp 161, April 1997. Childress, D. S. and Weir, R.F. ff., "The Gait Velocigram (GVC): A Graphical Representation of Walking." Proceedings of the 19th Annual International Conference of the IEEE, Engineering in Medicine and Biology Society (EMBS), pp2905-2908. Chicago, IL, October 30 to November 2, 1997. Gard, S. A. and Childress, D.S., "How Two-Dimensional Representations of Three-Dimensional Human Movement Can Be Misleading", Journal of Gait and Posture, Vol. 5, No. 2, pp 185, April 1997. Gard. S.A., "The Effect of Pelvic List on the Vertical Displacement of the Trunk During Normal Walking", Gait & Posture, 5 (2), pp. 233-238, April 1997. Gard, S.A. and Childress, D.S., " The Effect of Stance-Phase Knee Flexion on the Vertical Displacement of the Trunk During Normal Walking". The 21st Annual Meeting of the American Society of Biomechanics, Clemson University, Clemson, SC, September 24-27, 1997. Jhoun, J. H., and Childress, D.S., "Pelvic Obliquity During Gait Initiation", Journal of Gait and Posture, Vol. 5, No. 2, pp 181, April 1997. Michaud, Stephanie B. and Dudley S. Childress, "Preliminary Investigation of Pelvic Obliquity Patterns in Amputee Gait" accepted as an abstract to the 8th World Congress of the International Rehabilitation Medicine Association (IRMA), pg. 270, Aug. 31-Sept. 4, 1997, Kyoto, Japan. (NIDRR) Miller, L.A., "In Search of Better Crutches". In Motion, 7(3), 30-32. July 1997. Weir, Richard F. ff., "A Portable, Clinical Gait Analysis System for the Real-Time Evaluation of Gait Pathologies" Proceedings of the 21st Annual Mtg. of the American Society of Biomechanics Meeting, p. 198, Clemson, SC, Sept. 24-27, 1997. Weir, R. F. ff. and Childress, D.S., "A New Method of Characterizing Gait Using a Portable, Real-Time, Ultrasound Ranging Device", The Final Program & Abstract Book, 19th Annual International Conference of the IEEE-EMB Society, p. 126, Chicago, IL, Oct. 30-Nov. 2, 1997 Weir, R.F. ff., and Childress, D.S., "A Portable, Low cost, Real-Time, Clinical Gait Analysis System ". IEEE Transactions on Rehabilitation Engineering, Vol. 5, No. 4, pp. 310-321, December 1997 Weir, Richard F. ff., "Precise Timing via the PC’s RS-232 Port. Circuit Ideas.", Electronic World, Vol 103, No 1729, p. 46, January 1997. "Big Steps Forward for Amputees", FDA Consumer, Vol. 31. No. 2, pp. 6-11, March 1997. Weir, R.F. ff., Childress, D.S., and Licameli, J.N., "Portable Ranging System for Analyzing Gait". Patent Application filed with U. S. Patent Office, April 9, 1997. Weir, R. F.ff., and Childress, D.S., "Low Cost Direct Ultrasound Ranging System for the Analysis of Gait", published in the Journal of Gait and Posture, Vol. 5, No. 2, pp 180, April 1997. 1996 Gard, S., and Childress, D., "The Effect of Pelvic List on the Vertical Displacement of the Trunk During Normal Walking Gait and Posture," Abstracts of the First Annual North American Society of Gait and Clinical Movement Analysis Conference, Birmingham, AL, 20 April - 23 April 1996. (Gait and Posture, 4 (2), pp. Gard, S., and Childress, D., "The Effect of Pelvic List on the Vertical Displacement of the Trunk During Normal Walking," Gait and Posture, Vol. 4, No. 2, pp. 193 - 194, April 1996. Presented at the First Annual North American Society of Gait and Clinical Movement Analysis Conference, Birmingham, A.L., 20 April - 23 April 1996. Gard, S.A., Knox, E.H., and Childress, D.S., "Two - Dimensional Representation of Three - Dimensional Pelvic Motion During Human Walking: An Example of How Projections Can Be Misleading", Journal of Biomechanics, Vol. 29, No. 10, pp 1387 - 1391,1996 Miller, L.A., "Inverse Dynamics Procedures and Application to Human Gait Analysis," Internal Technical Report Number 027, Northwestern University Rehabilitation Engineering Research Program and Prosthetics Research Laboratory, March 1996. Visser, S., "Observations of Human Ambulation from Near Zero to Rapid Walking Velocity," Abstract, 12 January 1996 1995 Gard, S., and Childress, D., Sensitivity Analyses of Swing - Leg Length and Toe Clearance / Sensitivity Analysis of the Swing - Leg During Gait Presented at the Second North American Clinical Gait Laboratory Conference, Waterloo, Ontario, Canada, 1 June - 3 June 1995. Gard, S.A., Knox, E.H., and Childress, D.S., Two - Dimensional Representation of Three - Dimensional Pelvic Motion During Human Walking: An Example of How Projections Can Be Misleading Journal of Biomechanics, Vol. 29, No. 10, pp 1387 - 1391, Internal Technical Report Number 007, Northwestern University Rehabilitation Engineering Research Program, 5 January 1996. 1991 1990 Van Vorhis, R.L., Rovick, J.S., Chan, R.B., Childress, D.S., Statistical Improvements in Accuracy of 3-D Triangulation for Human Motion Studies: Maximum Likelihood Position Estimates From Over-Determinant Light Plane Observations Proceedings of the First World Congress of Biomechanics (Abstracts), Vol. 2, p. 152, 1990. Van Vorhis, R.L., Rovick, J.S., Childress, D.S., Anatomically-Based Axis Definition to Facilitate Inter/Intra-Subject Data Set Comparisons Gait Analysis, State of the Art of Measuring Systems and their Importance in Prosthetic and Orthotic Technology, Eds. U. Boenick, M. Nader and C. Mainke, pp. 308-313, Merke Druck and Verlag, Duderstadt, Berlin, Germany, 1990. | ||||||||||||||||||||||||||
| ||||||||
