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Titolo:
Kinematic comparison of Hybrid II test dummy to wheelchair user
Autore:
Dvorznak, MJ; Cooper, RA; OConnor, TJ; Boninger, ML; Fitzgerald, SG;
Indirizzi:
Univ Pittsburgh, VA Pittsburgh Healthcare Syst,Human Engn Res Labs, Ctr Excellence Wheelchairs & Related Technol, Dept Rehabil Sci & Technol, Pittsburgh, PA 15206 USA Univ Pittsburgh Pittsburgh PA USA 15206 Technol, Pittsburgh, PA 15206 USA Univ Pittsburgh, VA Pittsburgh Healthcare Syst,Human Engn Res Labs, Ctr Excellence Wheelchairs & Related Technol, Dept Phys Med & Rehabil, Pittsburgh, PA 15206 USA Univ Pittsburgh Pittsburgh PA USA 15206 Rehabil, Pittsburgh, PA 15206 USA Univ Pittsburgh, VA Pittsburgh Healthcare Syst,Human Engn Res Labs, Ctr Excellence Wheelchairs & Related Technol, Dept Bioengn, Pittsburgh, PA 15206 USA Univ Pittsburgh Pittsburgh PA USA 15206 Bioengn, Pittsburgh, PA 15206 USA
Titolo Testata:
MEDICAL ENGINEERING & PHYSICS
fascicolo: 4, volume: 23, anno: 2001,
pagine: 239 - 247
SICI:
1350-4533(200105)23:4<239:KCOHIT>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACCIDENTS; MOMENTS; FORCES;
Keywords:
safety; falls; hybrid test dummies; injuries; modeling;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Dvorznak, MJ Univ Pittsburgh, VA Pittsburgh Healthcare Syst,Human Engn ResLabs, Ctr Excellence Wheelchairs & Related Technol, Dept Rehabil Sci & Technol, Pittsburgh, PA 15206 USA Univ Pittsburgh Pittsburgh PA USA 15206 sburgh, PA 15206 USA
Citazione:
M.J. Dvorznak et al., "Kinematic comparison of Hybrid II test dummy to wheelchair user", MED ENG PHY, 23(4), 2001, pp. 239-247

Abstract

Hybrid test dummies provide a safe alternative to human subjects when investigating mechanisms of wheelchair tips and falls. The data that researchers acquire from these test dummies are more useful if the test dummy represents the population beings studied. The goal of this study was to measure the validity of a 50th percentile Hybrid II test dummy (HTD) as an accurate representation of a wheelchair user. A test pilot with T8 paraplegia due to traumatic spinal cord injury served as a basis for validation. Simple modifications were made to the HTD to approximate the trunk stability characteristics of a person with a spinal cord injury. An HTD, a modified HTD, and a human test pilot were seated in an electric-powered wheelchair and several braking tests performed. The standard HTD underestimated the kinematics when compared to the test pilot. The modified HTD had less trunk stability than the standard HTD during all braking methods. The modified HTD and wheelchair test pilot had similar trunk stability characteristics during kill switch and joystick full-reverse braking conditions. The modified HTD is a satisfactory representation of a wheelchair user with a spinal cord injury; however, the modified test dummy underestimates the trunk dynamics during the less extreme joystick release braking. Work should continue on the development of a low-speed, low-impact test dummy that emulates the wheelchair userpopulation. (C) 2001 IPEM. Published by Elsevier Science Ltd. All rights reserved.

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Documento generato il 29/09/20 alle ore 23:53:20