Zobrazeno 1 - 10
of 135
pro vyhledávání: '"Robert D. Gregg"'
Publikováno v:
IEEE Transactions on Neural Systems and Rehabilitation Engineering, Vol 32, Pp 3891-3901 (2024)
Although powered prosthetic legs have enabled more biomimetic joint kinematics during steady-state activities like walking and stair climbing, transitions between these activities are usually handled by discretely switching controllers without consid
Externí odkaz:
https://doaj.org/article/08617c493d85426e913815ac8808ef66
Publikováno v:
IEEE Transactions on Neural Systems and Rehabilitation Engineering, Vol 31, Pp 4146-4155 (2023)
Individuals using passive prostheses typically rely heavily on their biological limb to complete sitting and standing tasks, leading to slower completion times and increased rates of osteoarthritis and lower back pain. Powered prostheses can address
Externí odkaz:
https://doaj.org/article/ce54fa50daac4c98a9d10f144998f8b6
Publikováno v:
IEEE Open Journal of Control Systems, Vol 1, Pp 15-28 (2022)
Task-specific, trajectory-based control methods commonly used in exoskeletons may be appropriate for individuals with paraplegia, but they overly constrain the volitional motion of individuals with remnant voluntary ability (representing a far larger
Externí odkaz:
https://doaj.org/article/08f3893793894e468bc30c5af02d6a38
Publikováno v:
IEEE Open Journal of Engineering in Medicine and Biology, Vol 3, Pp 211-217 (2022)
Goal: Accounting for gait individuality is important to positive outcomes with wearable robots, but manually tuning multi-activity models is time-consuming and not viable in a clinic. Generalizations can possibly be made to predict gait individuality
Externí odkaz:
https://doaj.org/article/f9d4d60c7f1848dcae4e2c09d980c7db
Autor:
Emma Reznick, Kyle R. Embry, Ross Neuman, Edgar Bolívar-Nieto, Nicholas P. Fey, Robert D. Gregg
Publikováno v:
Scientific Data, Vol 8, Iss 1, Pp 1-12 (2021)
Measurement(s) locomotory behavior • able-bodied gait • joint kinematics • joint kinetics Technology Type(s) motion capture • forceplates Sample Characteristic - Organism Homo sapiens Machine-accessible metadata file describing the reported d
Externí odkaz:
https://doaj.org/article/98a5d2be52fa427089856cae46b88154
Publikováno v:
IEEE Access, Vol 9, Pp 95427-95443 (2021)
Kinematic control approaches for exoskeletons replicate normative joint kinematics associated with one specific task and user at a time, which makes it difficult to adjust to continuously-varying activities during gait training. These approaches also
Externí odkaz:
https://doaj.org/article/564e2da5127d403b8f65d050e436e1bc
Autor:
Siavash Rezazadeh, David Quintero, Nikhil Divekar, Emma Reznick, Leslie Gray, Robert D. Gregg
Publikováno v:
IEEE Access, Vol 7, Pp 109840-109855 (2019)
Although there has been recent progress in control of multi-joint prosthetic legs for rhythmic tasks such as walking, control of these systems for non-rhythmic motions and general real-world maneuvers is still an open problem. In this article, we dev
Externí odkaz:
https://doaj.org/article/f2ff7f78ca664f10b1cc9ada8efd4dce
Autor:
David Quintero, Emma Reznick, Daniel J. Lambert, Siavash Rezazadeh, Leslie Gray, Robert D. Gregg
Publikováno v:
IEEE Journal of Translational Engineering in Health and Medicine, Vol 6, Pp 1-9 (2018)
This paper presents a potential solution to the challenge of configuring powered knee-ankle prostheses in a clinical setting. Typically, powered prostheses use impedance-based control schemes that contain several independent controllers which corresp
Externí odkaz:
https://doaj.org/article/eccd54e59d724e50a8fdea8713c4d766
Publikováno v:
IEEE Access, Vol 4, Pp 893-904 (2016)
Bipedal locomotion is a popular area of study across multiple fields (e.g., biomechanics, neuroscience, and robotics). Different hypotheses and models have tried explaining how humans achieve stable locomotion. Perturbations that produce shifts in th
Externí odkaz:
https://doaj.org/article/2596cbc6d9764a5bbb11df6ad73396de
Publikováno v:
Actuators, Vol 8, Iss 2, p 44 (2019)
Legged and gait-assistance robots can walk more efficiently if their actuators are compliant. The adjustable compliance of variable-stiffness actuators (VSAs) can enhance this benefit. However, this functionality requires additional mechanical compon
Externí odkaz:
https://doaj.org/article/ab6495614efa4fabb3ff1dea90c5be12