A Wrist and Finger Force Sensor Module for Use During Movements of the Upper Limb in Chronic Hemiparetic Stroke

Miller, Laura C.; Ruiz-Torres, Ricardo; Stienen, Arno H. A.; Dewald, Julius P. A.

doi:10.1109/tbme.2009.2026057

Cited by 29 publications

(21 citation statements)

References 32 publications

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“…"The WFFS measures isometric flexion/extension forces generated by the wrist, fingers, and thumb during 3-D movements of the paretic upper limb (Miller et al, 2009)." Unlike other hand exoskeletons, the WFFS is able to generalize 3-D movements of the hand in conjunction with the rest of the limb.…”

Section: Rehabilitationmentioning

confidence: 99%

Current Work in the Human-Machine Interface for Ergonomic Intervention with Exoskeletons

Schnieders

Stone

2017

International Journal of Robotics Applications and Technologies

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This literature review of exoskeleton design provides a brief history of exoskeleton development, discusses current research of exoskeletons with respect to the innate human-machine interface, and the incorporation of exoskeletons for ergonomic intervention, and offers a review of needed future work. Development of assistive exoskeletons began in the 1960's but older designs lacked design for human factors and ergonomics and had low power energy density and power to weight ratios. Advancements in technology have spurred a broad spectrum of research aimed at enhancing human performance and assisting in rehabilitation. The review underwent a holistic and extensive search and provides a reflective snapshot of the state of the art in exoskeleton design as it pertains to the incorporation of exoskeletons for ergonomic intervention. Some of the remaining challenges include improving the energy density of exoskeleton power supplies, improving the power to weight ratio of actuation devices, improving the mechanical human-machine interface, and dealing with variability between users. Disciplines Industrial Engineering | Systems Engineering CommentsThis article is published as Schnieders, Thomas Michael, and Richard T. ABSTRACTThis literature review of exoskeleton design provides a brief history of exoskeleton development, discusses current research of exoskeletons with respect to the innate human-machine interface, and the incorporation of exoskeletons for ergonomic intervention, and offers a review of needed future work. Development of assistive exoskeletons began in the 1960's but older designs lacked design for human factors and ergonomics and had low power energy density and power to weight ratios. Advancements in technology have spurred a broad spectrum of research aimed at enhancing human performance and assisting in rehabilitation. The review underwent a holistic and extensive search and provides a reflective snapshot of the state of the art in exoskeleton design as it pertains to the incorporation of exoskeletons for ergonomic intervention. Some of the remaining challenges include improving the energy density of exoskeleton power supplies, improving the power to weight ratio of actuation devices, improving the mechanical human-machine interface, and dealing with variability between users.

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Section: Rehabilitationmentioning

confidence: 99%

Current Work in the Human-Machine Interface for Ergonomic Intervention with Exoskeletons

Schnieders

Stone

2017

International Journal of Robotics Applications and Technologies

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“…Both situations can lead to learned non-use of the paretic UE [4], constituting a major cause of chronic disability in this population. When a paretic arm and hand are used together, abnormal joint coupling (i.e., synergy) of the shoulder, elbow, wrist, and fingers may further increase hand dysfunction [5,6]. This abnormal coupling is prevalent in most individuals with moderate to severe stroke.…”

Section: Introductionmentioning

confidence: 99%

“…We currently know that when an individual with stroke abducts the arm against shoulder loads or reaches for a distant object, a significantly increased involuntary flexion force can be recorded at the wrist and fingers [5,6]. The key question-whether a voluntary drive of the hand can overcome this synergy induced involuntary flexion force-remains largely unanswered.…”

Section: Introductionmentioning

confidence: 99%

Increased shoulder abduction loads decreases volitional finger extension in individuals with chronic stroke: Preliminary findings

Lan

Yao

Dewald

2014

2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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Abstract-The ability to open the paretic hand is greatly affected after a stroke. The loss of especially finger extension has been previously reported during isolated finger movements. However, activities of daily life require the combination of reaching and grasping which will require shoulder abduction. Shoulder abductor activity will result in concurrent elbow, wrist and finger flexion which is also referred to as the flexion synergy. Therefore as part of this study the effect of of shoulder abduction (SABD) loading on volitional finger extension in individuals with chronic stroke is investigated. We expect to observe that shoulder abduction loading will further decrease the already impaired volitional finger extension in individuals with chronic stroke .A total of four moderately impaired individuals with chronic stroke and three age-matched able-bodied subjects participated in this study. Finger extension was recorded during hand open while subjects kept their arm extended at the end of a reach. The preliminary data showed that the maximal volitional finger extension was significantly decreased by increasing the SABD loads in individuals with chronic stroke, but not in age-matched able-bodied subjects.

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“…Recently, we developed a Wrist and Finger Force Sensor module (WFFS) to be used with haptic robotic devices such as the ACT-3D so that isometric wrist, finger, and thumb flexion and extension forces could be measured during 3D limb movements [16] of individuals with adult-onset stroke and children with hemiplegia. Using the WFFS, we were able to provide preliminary evidence with moderately to severely impaired individuals with chronic stroke that involuntary paretic wrist/finger and thumb flexion forces occur during a shoulder flexion and elbow extension task with the limb supported by the ACT-3D.…”

Section: Introductionmentioning

confidence: 99%

Wrist and Finger Torque Sensor for the quantification of upper limb motor impairments following brain injury

Stienen

Sukal-Moulton

Miller

et al. 2011

2011 IEEE International Conference on Rehabilitation Robotics

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This paper details the design of the Wrist and Finger Torque Sensing module (WFTS): a lightweight, portable device that measures isometric wrist and finger flexion and extension joint torques. The WFTS can be used in combination with rehabilitation robots such as the ACT-3D, with isometric measurement stations, or as a stand-alone device. Because many robotic devices are limited in that they involve the hand in isolation, the WFTS is designed to investigate abnormal joint torque coupling at the paretic wrist and fingers in individuals with adult-onset stroke or childhood hemiplegia during 3D arm movements or isometric generation of shoulder and elbow torques. In short, the versatility of the WFTS allows for a variety of applications.

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A Wrist and Finger Force Sensor Module for Use During Movements of the Upper Limb in Chronic Hemiparetic Stroke

Cited by 29 publications

References 32 publications

Current Work in the Human-Machine Interface for Ergonomic Intervention with Exoskeletons

Current Work in the Human-Machine Interface for Ergonomic Intervention with Exoskeletons

Increased shoulder abduction loads decreases volitional finger extension in individuals with chronic stroke: Preliminary findings

Wrist and Finger Torque Sensor for the quantification of upper limb motor impairments following brain injury

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