A Gait Simulation and Evaluation System for Hip Disarticulation Prostheses

Li, Xinwei; Yixuan, Xiao; Chen, He; Hu, Bingshan; Yu, Hongliu

doi:10.1109/tase.2020.3035438

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…The system proved to be efficient by 1.15 s compared to the standard EMG type, with an added feature of computer and environment control. Li et al ( 51 ) proposed a gait evaluation and simulation device for hip disarticulation prosthesis testing. The human motion trajectory was adapted by the robot which had prosthetic thigh simulation.…”

Section: Application Fields Of Assistive Technologymentioning

confidence: 99%

Discernment on assistive technology for the care and support requirements of older adults and differently-abled individuals

Muthu

Tan²,

Latha³

et al. 2023

Front. Public Health

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Assistive technology for the differently abled and older adults has made remarkable achievements in providing rehabilitative, adaptive, and assistive devices. It provides huge assistance for people with physical impairments to lead a better self-reliant daily life, in terms of mobility, education, rehabilitation, etc. This technology ranges from simple hand-held devices to complex robotic accessories which promote the individual's independence. This study aimed at identifying the assistance required by differently-abled individuals, and the solutions proposed by different researchers, and reviewed their merits and demerits. It provides a detailed discussion on the state of art assistive technologies, their applications, challenges, types, and their usage for rehabilitation. The study also identifies different unexplored research areas related to assistive technology that can improve the daily life of individuals and advance the field. Despite their high usage, assistive technologies have some limitations which have been briefly described in the study. This review, therefore, can help understand the utilization, and pros and cons of assistive devices in rehabilitation engineering and assistive technologies.

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Section: Application Fields Of Assistive Technologymentioning

confidence: 99%

Discernment on assistive technology for the care and support requirements of older adults and differently-abled individuals

Muthu

Tan²,

Latha³

et al. 2023

Front. Public Health

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“…Xinwei et al proposed an HDP system based on the remote center of motion (RCM) structure, successfully restoring the physiological center of rotation of the amputated side of the hip joint. 11,12 Nonetheless, prior investigations have been confined to fine-tuning joint stiffness, with the interdependent movement of the prosthetic hip and knee joints remaining largely unexplored.…”

mentioning

confidence: 99%

Design and optimization of a new integrated hip and knee prosthesis structure

Luo,

Shu,

Zhu

et al. 2023

Artificial Organs

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BackgroundConventional hip disarticulation prostheses (HDPs) are passive devices with separate joint structures, limiting amputees' ability to control and resulting in abnormal gait patterns. This study introduces a new HDP integrating the hip and knee joints for amputees' natural gait.MethodsThe new HDP restores the physiological rotation center of the hip with a remote center of motion (RCM) structure, and simulates the knee motion with a four‐bar structure. Nonlinear programming was employed to optimize the hip‐knee joint structure. A hybrid multi‐objective drive structure with a series–parallel connection was also designed to ensure motion synergy between the hip and knee joints. Finally, a prototype of the prosthesis was tested using the HDP test system.ResultsThe optimization results demonstrate that the new HDP accurately restores the rotation center of the femur in amputees, with the knee's instantaneous center of rotation (ICR) trajectory closely resembling that of the human knee (Pearson correlation coefficient is 0.999). The study shows that the new HDP achieves a motion reproduction accuracy of over 95% for the human hip joint at walking speeds above 1.5 km/h, 38% higher than conventional prosthesis. Similarly, at the same walking speed, the new HDP replicates the motion of the human knee at 82.89%, surpassing conventional prosthesis by 57.85%.ConclusionsThe new HDP restores symmetry and replicates synergistic movement in amputees' lower limbs, exhibiting superior movement characteristics compared to conventional prostheses. This innovative HDP has the potential to enhance the quality of life for amputees.

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