Filing # 165920593 E-Filed 02/01/2023 02:09:13 PM
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`Plaintiff,
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`ANTHONY BAXTER-ARMENTROUT,
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`v.
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`BETTY JEAN ROBERTS,
`LYFT, INC., and LYFT FLORIDA, INC.
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`Defendants.
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`________________________________/
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`IN THE CIRCUIT COURT OF THE
`15th JUDICIAL CIRCUIT IN AND FOR
`PALM BEACH COUNTY, FLORIDA
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`CASE NO.: 502021CA013917XXXXMB
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`NOT A CERTIFIED COPY
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`DEFENDANT’S AMENDED EXPERT WITNESS LIST
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`Defendant, BETTY JEAN ROBERTS, by and through her undersigned counsel,
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`and pursuant to the Order Setting Jury Trial dated December 20, 2022, hereby files her
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`Amended Expert Witness List as follows:
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`1.
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`Expert Witnesses
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`Jordan C. Grabel, M.D., FACS
`Grabel Spine
`1411 N. Flagler Drive
`Suite 5900
`West Palm Beach, FL 33401
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`Dr. Grabel is a board-certified neurosurgeon by the American Board of
`Neurological Surgeons. Dr. Grabel is expected to testify on the extent, cause
`and relationship of Plaintiff’s neurological and neurosurgical condition, prognosis,
`causation of injuries, need and extent of any future medical care, permanency of
`claimed injuries, and the reasonableness and necessity of Plaintiff’s medical
`treatment. All opinions will be based upon Dr. Grabel’s examination of Plaintiff,
`review of medical records and relevant discovery, and his training and
`experience in the field of neurosurgical spinal surgery. A copy of Dr. Grabel’s
`CME report will be produced within 30 days following the completion of Plaintiff’s
`CME. Dr. Grabel’s CV has been served on the parties.
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`QUINTAIROS, PRIETO, WOOD & BOYER, P.A. · ATTORNEYS AT LAW
`9300 SOUTH DADELAND BOULEVARD, 4TH FLOOR, MIAMI, FLORIDA 33156 ♦ TEL: (305) 670-1101
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`*** FILED: PALM BEACH COUNTY, FL JOSEPH ABRUZZO, CLERK. 02/01/2023 02:09:13 PM ***
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`Armentrout v. Roberts, et. al.
`Case No.: 502021CA013917XXXX MB
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`Michael M. Raskin, M.D.
`7710 NW 71st Court, Suite 207
`Tamarac, FL 33321
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`Dr. Raskin is a board certified neuroradiologist and will testify as to the extent,
`cause, and relationship of the Plaintiff’s injuries as reflected on the Plaintiff’s
`diagnostic films. All opinions will be based upon Dr. Raskin’s review of
`diagnostic radiology films and related reports and his education, training, and
`experience in the field of diagnostic radiology, neuroradiology and nuclear
`medicine. To date, Dr. Raskin has not generated a report. Dr. Raskin’s CV has
`been served on the parties.
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`Michael Zeide, M.D.
`Complex Medical Evaluations
`1501 Presidential Way, Ste. 6
`West Palm Beach, FL 33401
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`Dr. Zeide is a board-certified orthopedic surgeon and certified orthopedic coder.
`Dr. Zeide is an expert in the areas of medical coding, medical billing, and
`reasonable and customary medical charges in the State of Florida. Dr. Zeide will
`testify as to the reasonable and customary medical charges for the past medical
`charges claimed by the Plaintiff. He will also testify as to the CPT coding used
`by Plaintiff’s medical providers to bill for the services provided to Plaintiff. To the
`extent that the plaintiff claims any future medical care, Dr. Zeide will similarly
`testify as to the reasonable and customary charges for those future medical
`expenses. Dr. Zeide will also rebut any expert testimony proffered by any expert,
`treating physician or hybrid expert witness as to the reasonable and customary
`charges for medical services in Florida. Dr. Zeide’s opinions will be based upon
`his expertise in the field of coding and billing, and his review of medical records,
`medical bills and other relevant discovery. To date, Dr. Zeide has not generated
`a report. Dr. Zeide’s CV has been served on the parties.
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`NOT A CERTIFIED COPY
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`2.
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`3.
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`4. Andes Navarro, P.E., DFE, ACTAR, CXLT
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`Kimley-Horn & Associates, Inc.
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`1920 Wekiva Way, Suite 200
`West Palm Beach, FL 33411
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`Mr. Navarro is an accident reconstruction expert and licensed professional
`engineer. He will offer opinions in the field of accident reconstruction relating to
`the subject accident. His opinions will be based upon his review of relevant
`records and his education, training, and experience in the field of accident
`reconstruction. He is expected to offer opinions regarding how the subject
`accident occurred, the speeds of the vehicles involved in the accident, the forces
`placed on the Plaintiff’s body during the subject accident, and will offer testimony
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`QUINTAIROS, PRIETO, WOOD & BOYER, P.A. · ATTORNEYS AT LAW
`9300 SOUTH DADELAND BOULEVARD, 4TH FLOOR, MIAMI, FLORIDA 33156 ♦ TEL: (305) 670-1101
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`5.
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`Armentrout v. Roberts, et. al.
`Case No.: 502021 CA013917XXXX MB
`regarding the reconstruction of the subject accident. He has not generated a
`written report to date. Mr. Navarro’s CV has been served on the parties.
`Andrew J. Rentschler, Ph.D.
`ARCCA
`Three Gateway Center
`401 Liberty Avenue, Suite 1325
`Pittsburgh, PA 15222
`Dr. Rentschler is a mechanical engineer with additional training in biomechanical
`engineering. He will offer opinions in the field of biomechanical engineering
`relating to the causation of the alleged injuries in the subject accident and the
`absence of a mechanism of injury. His opinions will be based on his review of
`records
`relevant
`limited to depositions, medical
`including, but not
`records,
`regarding treatment received by the Plaintiff as well as his education, training,
`and experience. Dr. Rentschler has not prepared a report. Dr. Rentschler’s CV is
`being served on the parties.
`DEFENDANTS RESERVE THE RIGHT TO AMEND THEIR SCHEDULE OF EXPERT
`WITNESSES. DEFENDANTS ALSO RESERVE THE RIGHT TO OBJECT TO ANY
`AND ALL WITNESSES LISTED BY OTHER PARTIES TO THIS ACTION.
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`NOT A CERTIFIED COPY
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`CERTIFICATE OF SERVICE
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`WE HEREBY CERTIFY that a true and correct copy of the foregoing was
`furnished via the E-Filing Portal or E-Service this 1st day of February, 2023 to:
`Plaintiff’s Counsel:
`The Grife Law Firm, P.A.
`6111 Broken Sound Parkway NW
`Suite 300
`Boca Raton, FL 33487
`Telephone: (561) 998-0770
`Facsimile: (561) 998-0778
`Email: mike@thegrifelawfirm.com
`tanecia@theqrifelawfirm.com
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`• Attorneys at Law
`Quintairos, Prieto, Wood & Boyer, P.A.
`9300 South Dadeland Boulevard, 4th Floor, Miami, Florida 33156 ♦ tel:
`(305) 670-1101
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`

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`Armentrout v. Roberts, et. al.
`Case No.: 502021 CA013917XXXX MB
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`Counsel for Defendant, Lyft
`James Gillenwater, Esq.
`Emiley F. Pagrabs, Esq.
`Greenberg Traurig, P.A.
`333 S.E. 2nd Avenue - Suite 4400
`Miami, Florida 33131
`Tel.: (305) 579-0767
`Fax: (305)579-0717
`FLService@qtlaw.com
`paqrabse@qtlaw.com
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`/s/ Jaime E. Campos_
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`NOT A CERTIFIED COPY
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`GEORGE L. FERNANDEZ, ESQ.
`Florida Bar No.: 0002097
`JAIME E. CAMPOS, ESQ.
`Florida Bar No.: 685348
`Quintairos, Prieto, Wood & Boyer, P.A.
`Attorneys for Defendant, Roberts
`9300 South Dadeland Boulevard - 4th Floor
`Miami, Florida 33156
`Tel.: 305-670-1101
`Fax: 305-670-1161
`gfernandez@QPWBLAW.com
`jcampos@QPWBLAW.com
`bfetokakis-fernandez@QPWBLAW.com
`marta.querra@QPWBLAW.com
`
`• Attorneys at Law
`Quintairos, Prieto, Wood & Boyer, P.A.
`9300 South Dadeland Boulevard, 4th Floor, Miami, Florida 33156 ♦ tel:
`(305) 670-1101
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`

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`wARCCA
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`ANDREW J. RENTSCHLER, Ph.D.
`PROFESSIONAL BIOGRAPHICAL OUTLINE
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`INCORPORATED
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`BACKGROUND
`Dr. Rentschler received a Bachelors of Science in Mechanical Engineering with a minor in Biomedical
`Engineering from Carnegie Mellon University. He then went on to obtain a Masters of Science and a Ph.D.
`in Bioengineering from the University of Pittsburgh. While at the University of Pittsburgh, Dr. Rentschler’s
`research included investigating the biomechanics of gait and falls in order to mitigate related injuries
`through the design of an autonomous robotic walker, as well as three dimensional motion and force
`analyses to study the biomechanics of shoulder, wrist, and spine injuries in wheelchair users. He has
`overseen clinical studies of live human subjects and participated in testing with anthropomorphic test
`devices (ATD) to gauge injury potential. Dr. Rentschler has completed advanced coursework in the fields
`of biomechanics, kinematics of the human body, biomaterials, engineering mechanics, and anatomy
`and physiology.
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`Dr. Rentschler’s academic and professional experience represents an extensive combination of
`mechanical and biomechanical engineering, including human kinematic analysis, ATD testing, and
`human anatomy and physiology. Currently, he specializes in the study of the kinematics and kinetics
`of the human body, injury mechanisms, and associated tolerances.
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`NOT A CERTIFIED COPY
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`AREAS OF SPECI ALTY
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`Injury Causation Biomechanics
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` Human Injury Tolerance
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` Gait and Fall Analysis
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` Vehicular Accident Reconstruction
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` Human Kinematic Analysis and Testing
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`Injury Mechanism Analysis
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`ACADEMIC BACKGROUND
` Doctor of Philosophy in Bioengineering, University of Pittsburgh, 2004
` Masters of Science in Bioengineering, University of Pittsburgh, 2002
` Bachelors of Science in Mechanical Engineering with a minor in Biomedical Engineering, Carnegie
`Mellon University,1995
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`PROFESSIONAL EXPE RIENCE
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`ARCCA, Incorporated | Senior Biomechanist
` Conducted scientific analysis of the performance of National Hockey League (NHL) hockey arenas
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`and board structures to develop and implement a new design to mitigate and prevent player trauma
`and injuries.
` Evaluated the design and performance of NHL player protective equipment including shoulder pads,
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`skate guards, and helmets.
` Conducted dynamic vehicle and underbody blast testing to evaluate and design a new seating and
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`restraint system for the military.
` Currently perform research and analysis to evaluate and study the relationships between crash injuries
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`and crash forces, occupant kinematics, and human tolerances by utilizing human subjects and
`anthropomorphic test devices.
` Specialize in crash injury analysis, injury mechanism determination, and crash kinematics
` Evaluate forensic evidence associated with impact and inertial loading conditions produced during
`events such as motor vehicle collisions, slips, trips, and falls, and work place and leisure incidents.
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`CHICAGO CORAL SPRINGS OAKLAND PHILADELPHIA PITTSBURGH SEATTLE TAMPA
`866.684.5250 954.369.1300 510.496.4625 800.700.4944 866.502.7222 877.942.7222 813.230.6334
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`PROFESSIONAL BIOGRAPHICAL OUTLINE | Andrew J. Rentschler, Ph.D.
`Page 2
` Participates in biomechanical investigations that explore human kinematics and tolerance to
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`potentially injurious environments
` Researches injury mechanisms and contributes to the design of vehicles, products, and environments
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`to mitigate injurious events in sports, automotive, and work settings.
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`himnni
`ARCCA
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`CED/Accident Analysis Inc. | Forensic Engineer
` Responsible for performing investigative and analytical consulting services in order to determine the
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`cause and circumstances of accidents with respect to injury tolerance and mechanisms.
` Consulted on biomechanics, slip and fall accidents, and vehicle accident reconstruction.
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`B.E.A.R. | Forensic Engineer
` Conducted analyses for the evaluation of injury biomechanics pertaining to vehicular, industrial,
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`sports, and slip and fall accidents, as well as vehicle accident reconstruction.
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`Human Engineering Research Laboratories, School of Health and Rehabilitation Services, University of
`Pittsburgh, VA Pittsburgh Health Care System | Research Associate
` Conducted graduate research to develop and test an autonomous robotic walker to help prevent
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`injuries from falls and increase user independence.
` Performed human subject testing and analysis to study the biomechanics and injury mechanisms
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`of wheelchair users.
` Developed and utilized safety testing for assistive technology devices being reviewed by the FDA.
` Conducted clinical studies to investigate human kinematics and vibration absorption in manual
`and electric powered wheelchair users
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`NOT A CERTIFIED COPY
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`PROFESSIONAL AF FILIATIONS
` Society of Automotive Engineers
` American Society of Mechanical Engineers
` Reviewer for Archives of Physical Medicine and Rehabilitation and BioMedical Engineering OnLine
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`PROFESSIONAL EDUCATION
` Biomechanics of High-Impact Injuries, NTSB
` Methodology and Techniques of Crash Data Retrieval, IPTM
` Human Factors in Traffic Crash Reconstruction, IPTM
` Automobile Safety and Injury Biomechanics, VT Center for Injury Biomechanics
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`Injuries, Anatomy, Biomechanics and Federal Regulations, SAE
` Vehicle Accident Reconstruction Methods, SAE
` Linear Momentum Analysis, CAARS
` Motor Vehicle Accident Reconstruction, SAE
` Advanced Collision Investigation, California Law Enforcement
` Post Collision Passenger Vehicle Inspection and Seat Belt Analysis, CAARS
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`CHICAGO CORAL SPRINGS OAKLAND PHILADELPHIA PITTSBURGH SEATTLE TAMPA
`866.684.5250 954.369.1300 510.496.4625 800.700.4944 866.502.7222 877.942.7222 813.230.6334
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`himnni
`ARCCA
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`PROFESSIONAL BIOGRAPHICAL OUTLINE | Andrew J. Rentschler, Ph.D.
`Page 3
`PUBLICATIONS
`Peer-Reviewed Journal Publications
`Rentschler, AJ, Cooper RA, Fitzgerald SG, Boninger ML, et. al. (2003). Evaluation of Selected Electric
`Powered Wheelchairs Using the ANSI/RESNA Standards. Archives of Physical Medicine and
`Rehabilitation.
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`Rentschler, AJ, Cooper RA, Blasch B, et. al. (2003). Intelligent Walkers for the Elderly: Performance and
`Safety Testing of the VA-PAMAID Robotic Walker. Journal of Rehabilitation Research and Development.
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`Fitzgerald SG, Cooper RA, Boninger ML, Rentschler, AJ, et. al. (2001). Comparison of Fatigue Life for
`Three Types of Manual Wheelchairs. Archives of Physical Medicine and Rehabilitation. 82:10. 1484-1488.
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`Cooper RA, Fitzgerald SG, Boninger ML, Prins K, Rentschler, AJ, et. al. (2001). Evaluation of a Pushrim
`Activated Power Assisted Wheelchair. Archives of Physical Medicine and Rehabilitation. 82:5. 702-708.
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`Cooper RA, Rentschler, AJ, O’Connor TJ, Ster JF, et. al. (2000). Technical Note: Displacement between
`the Seating Surface and Hybrid Test Dummy during Transitions with a Variable Configuration Wheelchair.
`Journal of Rehabilitation Research and Development. 37:3. 297-303.
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`DiGiovine MM, Cooper RA, Boninger ML, Lawrence BL, VanSickle DP, Rentschler, A.J. (2000). User
`Assessment of Manual Wheelchair Ride Comfort and Ergonomics, Archives of Physical Medicine and
`Rehabilitation. 81:4. 490-494.
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`Cooper RA, DiGiovine CP, Rentschler, AJ, et. al. (1999). Fatigue Life of Two Manual Wheelchair Cross-
`Brace Designs. Archives of Physical Medicine and Rehabilitation. 80:9. 1078-1081.
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`Cooper RA, Boninger ML, Rentschler, A. (1999). Evaluation of Selected Ultralight Manual Wheelchairs
`Using ANSI/RESNA Standards. Archives of Physical Medicine and Rehabilitation. 80:4. 462-467.
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`Cooper RA, O’Connor TJ, Gonzalez JP, Boninger ML, and Rentschler, AJ. (1999). Augmentation of the
`100 kg ISO Wheelchair Test Dummy to Accommodate Higher Mass. Journal of Rehabilitation Research
`and Development. 36:1. 48-54. See www.vard.org
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`Book Chapters
`Rentschler, AJ. (2007). Walker Systems in The Engineering Handbook on Smart Technology for Aging,
`Disability and Independence. Ed. A. Helal, M. Mokhtari and B. Abdulrazak. Wiley & Sons.
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`Peer-Reviewed Proceedings Publications (i.e. expanded abstracts)
`Rentschler, AJ, Blasch B, Boninger ML. (2003). Evaluation of the VA-PAMAID Robotic Walker. 26th
`Annual RESNA Conference, Atlanta, GA.
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`Rentschler, AJ, Cooper RA, Boninger, ML, et. al. (2001). Using Stability and Fatigue Strength Testing When
`Choosing a Manual Wheelchair. Proceedings 24th Annual RESNA Conference, Reno, NV. 335-337.
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`Algood D, Cooper RA, Rentschler, AJ, et. al. (2001). Power and Control System Testing of Five Different
`Types of Power Wheelchairs. Proceedings 24th Annual RESNA Conference, Reno, NV. 421-423.
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`NOT A CERTIFIED COPY
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`CHICAGO CORAL SPRINGS OAKLAND PHILADELPHIA PITTSBURGH SEATTLE TAMPA
`866.684.5250 954.369.1300 510.496.4625 800.700.4944 866.502.7222 877.942.7222 813.230.6334
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`himnni
`PROFESSIONAL BIOGRAPHICAL OUTLINE | Andrew J. Rentschler, Ph.D.
`ARCCA
`Page 4
`Vitek JM, Cooper RA, Rentschler, AJ, et. al. (2001). Static, Impact, and Fatigue Testing of Five Different
`Types of Electric Powered Wheelchairs. Proceedings 24th Annual RESNA Conference, Reno, NV. 343-
`345.
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`Rentschler, AJ, Cooper RA, Wolf EJ, Boninger ML. (2000). Climatic Testing of Five Different Types of
`Power Wheelchairs. Proceedings 23rd Annual RESNA Conference, Orlando, FL. 441-443.
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`Wolf E, Cooper RA, Rentschler, AJ, et. al. (2000). Comparison of Energy Consumption and Maximum
`Speed in Electric Powered Wheelchairs. Proceedings 23rd Annual RESNA Conference, Orlando, FL.
`453-455.
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`Fitzgerald SG, Cooper RA, Rentschler, AJ, et. al. (1999). Comparison of Fatigue Life for Three Types
`of Manual Wheelchairs. Proceedings 21st Annual IEEE/EMBS International Conference, Atlanta, GA.
`CD-ROM.
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`Rentschler, AJ, Cooper RA. (1999). A Comparison of the Dynamic and Static Stability of Power
`Wheelchairs versus Scooters. Proceedings 21st Annual IEEE/EMBS International Conference, Atlanta, GA.
`CD-ROM.
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`Dvorznak MJ, Cooper RA, Rentschler AJ, et. al. (1999). Displacement between Seating Surface and Test
`Dummy during Transition with a Variable Configuration Wheelchair. Proceedings 21st Annual IEEE/EMBS
`International Conference, Atlanta, GA. CD-ROM.
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`Rentschler AJ, Cooper RA, Boninger ML, et. al. (1999). A Comparison of Power Wheelchair Stability using
`ANSI/RESNA standards. Proceedings 22nd Annual RESNA Conference, Long Beach, CA. 284-286.
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`Liu D. Cooper RA, Tai C, Rentschler A, et. al. (1998). Effect of a Cushion on Whole Body Accelerations
`during Wheelchair Propulsion. Proceedings 21st Annual RESNA Conference, Minneapolis, MN. 137-139.
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`Liu D, Cooper RA, Tai C, Rentschler A, et. al. (1998). Quantitative Assessment of the Vibration Experience
`by Wheelchair Users during Activities of Daily Living. Proceedings 21st Annual RESNA Conference,
`Minneapolis, MN. 134-136.
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`Gonzalez J, Cooper RA, Rentschler A, et. al. (1997). Frame Failures of Welded Tube Manual Wheelchairs.
`Proceedings 20th Annual RESNA Conference, Pittsburgh, PA. 184-186.
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`Peer-Reviewed Abstracts
`Wolf EJ, Cooper RA, Rentschler AJ, et. al. (2000). Comparison of Energy Consumption in Electric Powered
`Wheelchairs. Proceedings 2nd Nat. Dept. of Veterans Affairs Rehab R&D Conference, Arlington, VA. 223.
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`Rentschler AJ, Cooper RA, Fitzgerald SF, et. al. (2000). Fatigue Life Analysis of Manual Wheelchairs.
`Proceedings 2nd National Department of Veterans Affairs Rehab R&D Conference, Arlington, VA. 214.
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`DiGiovine CP, Cooper RA, DiGiovine MM, Rentschler AJ, et. al. (1998). Comparison of Two Types of
`Cross Brace Designs Used on Rehabilitation Wheelchairs. VA Rehabilitation Research and Development
`Conference, Washington, D.C.
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`Cooper RA, VanSickle DP, Boninger ML, Gonzalez JP, Lawrence BL, Rentschler A, et. al. (1997). Design
`and Selection Guidelines for Wheelchair Rider Comfort. Rehabilitation Research and Development
`Progress Reports. 290-291.
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`NOT A CERTIFIED COPY
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`CHICAGO CORAL SPRINGS OAKLAND PHILADELPHIA PITTSBURGH SEATTLE TAMPA
`866.684.5250 954.369.1300 510.496.4625 800.700.4944 866.502.7222 877.942.7222 813.230.6334
`
`