scholarly journals Capturing hand use of individuals with spinal cord injury at home using egocentric video: A feasibility study

2020 ◽  
Author(s):  
Jirapat Likitlersuang ◽  
Ryan J Visee ◽  
Sukhvinder Kalsi-Ryan ◽  
Jose Zariffa
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Feasibility Study ◽  
Hand Function ◽  
Unmet Need ◽  
Living Environment ◽  
Self Report ◽  
Interaction Detection ◽  
Cord Injury ◽  
At Home

Background: Measuring arm and hand function in the community is a critical unmet need of rehabilitation after cervical spinal cord injury (SCI). This information could provide clinicians and researchers with insight into an individual's independence and reliance on care. Current techniques for monitoring upper limb function at home, including self-report and accelerometry, lack the necessary resolution to capture the performance of the hand in activities of daily living (ADLs). On the other hand, a wearable (egocentric) camera provides detailed video information about the hand and its interactions with the environment. Egocentric recordings at home have the potential to provide unbiased information captured directly in the user's own living environment. Purpose: To explore the feasibility of capturing egocentric video recordings in the home of individuals with SCI for hand function evaluation. Study Design: Feasibility study Methods: Three participants with SCI recorded ADLs at home without the presence of a researcher. Information regarding recording characteristics and compliance was obtained as well as structured and semi-structured interviews involving privacy, usefulness and usability. A video processing algorithm capable of detecting interactions between the hand and objects was applied to the home recordings. Results: 98.58 ± 1.05 % of the obtained footage was usable and included 4 to 8 unique activities over a span of 3 to 7 days. The interaction detection algorithm yielded an F1-score of 0.75 ± 0.15. Conclusion: Capturing ADLs using an egocentric camera in the home environment after SCI is feasible. Considerations regarding privacy, ease of use of the devices and scheduling of recordings are provided.

scholarly journals Capturing hand use of individuals with spinal cord injury at home using egocentric video: a feasibility study

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Jirapat Likitlersuang ◽  
Ryan J. Visée ◽  
Sukhvinder Kalsi-Ryan ◽  
José Zariffa
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Feasibility Study ◽  
Cord Injury ◽  
At Home

scholarly journals Improvement of hand functions of spinal cord injury patients with electromyography-driven hand exoskeleton: A feasibility study

2020 ◽  
Vol 1 ◽  
Author(s):  
Youngmok Yun ◽  
Youngjin Na ◽  
Paria Esmatloo ◽  
Sarah Dancausse ◽  
Alfredo Serrato ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Degrees Of Freedom ◽  
Standardized Test ◽  
Hand Function ◽  
Severe Disabilities ◽  
Finger Movements ◽  
Control Approach ◽  
Cord Injury ◽  
Hand Exoskeleton

Abstract We have developed a one-of-a-kind hand exoskeleton, called Maestro, which can power finger movements of those surviving severe disabilities to complete daily tasks using compliant joints. In this paper, we present results from an electromyography (EMG) control strategy conducted with spinal cord injury (SCI) patients (C5, C6, and C7) in which the subjects completed daily tasks controlling Maestro with EMG signals from their forearm muscles. With its compliant actuation and its degrees of freedom that match the natural finger movements, Maestro is capable of helping the subjects grasp and manipulate a variety of daily objects (more than 15 from a standardized set). To generate control commands for Maestro, an artificial neural network algorithm was implemented along with a probabilistic control approach to classify and deliver four hand poses robustly with three EMG signals measured from the forearm and palm. Increase in the scores of a standardized test, called the Sollerman hand function test, and enhancement in different aspects of grasping such as strength shows feasibility that Maestro can be capable of improving the hand function of SCI subjects.

Resilient Coping Types in People With Spinal Cord Injury: Latent Class Analysis

2021 ◽  
pp. 003435522199073
Author(s):  
Chungyi Chiu ◽  
Jessica Brooks ◽  
Alicia Jones ◽  
Kortney Wilcher ◽  
Sa Shen ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Life Satisfaction ◽  
Latent Class Analysis ◽  
Latent Class ◽  
Psychosocial Interventions ◽  
Self Report ◽  
Class Analysis ◽  
Multivariate Tests ◽  
Cord Injury

Resilience is central to living well with a spinal cord injury (SCI). To provide a timely, targeted, and individualized intervention supporting resilience, it is necessary to assess an individual’s resilience level and characteristics of resilience on an ongoing basis. We aimed to validate the different types of resilient coping among people with SCI (PwSCI), using the Connor–Davidson resilience scale, and to identify the relationships between resilience and other psychosocial factors among the types of resilient coping. We recruited 93 PwSCI, who took the self-report measures of resilience, depression, life satisfaction, and spirituality. Using latent class analysis, we found three types: (a) goal-pursuing, bouncing-back, and persevering, named GP; (b) uncertainty about coping with setbacks, named UC; and (c) loss of resilient coping, named LOSS. The multivariate tests indicated that the three types differed on a linear combination of resilience, depression, and life satisfaction, with a large effect size. We discussed the three types of resilient coping and the implications for psychosocial interventions. We also recommended that rehabilitation clinicians examine PwSCI’s resilience levels and types of resilience during initial and follow-up visits. In doing so, PwSCI will have timely, targeted supports for developing and/or re-building their resilience.

A critical reappraisal of corticospinal tract somatotopy and its role in traumatic cervical spinal cord syndromes

2021 ◽  
pp. 1-7
Author(s):  
Allan D. Levi ◽  
Jan M. Schwab
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Upper Extremity ◽  
Corticospinal Tract ◽  
Cervical Spinal Cord ◽  
Hand Function ◽  
Cervical Spinal Cord Injury ◽  
Pathophysiological Mechanism ◽  
Cord Injury ◽  
Central Cord Syndrome

The corticospinal tract (CST) is the preeminent voluntary motor pathway that controls human movements. Consequently, long-standing interest has focused on CST location and function in order to understand both loss and recovery of neurological function after incomplete cervical spinal cord injury, such as traumatic central cord syndrome. The hallmark clinical finding is paresis of the hands and upper-extremity function with retention of lower-extremity movements, which has been attributed to injury and the sparing of specific CST fibers. In contrast to historical concepts that proposed somatotopic (laminar) CST organization, the current narrative summarizes the accumulated evidence that 1) there is no somatotopic organization of the corticospinal tract within the spinal cord in humans and 2) the CST is critically important for hand function. The evidence includes data from 1) tract-tracing studies of the central nervous system and in vivo MRI studies of both humans and nonhuman primates, 2) selective ablative studies of the CST in primates, 3) evolutionary assessments of the CST in mammals, and 4) neuropathological examinations of patients after incomplete cervical spinal cord injury involving the CST and prominent arm and hand dysfunction. Acute traumatic central cord syndrome is characterized by prominent upper-extremity dysfunction, which has been falsely predicated on pinpoint injury to an assumed CST layer that specifically innervates the hand muscles. Given the evidence surveyed herein, the pathophysiological mechanism is most likely related to diffuse injury to the CST that plays a critically important role in hand function.

Poster 29 Is Self-Report of Co-Morbid Traumatic Brain Injury Valid in People with Recent Spinal Cord Injury?

PM&R ◽  
2015 ◽  
Vol 7 ◽  
pp. S101-S101
Author(s):  
Debbie Tan ◽  
Jeanne M. Hoffman ◽  
Darren C. Lee ◽  
Charles Bombardier
Keyword(s):  
Traumatic Brain Injury ◽  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Brain Injury ◽  
Self Report ◽  
Cord Injury

scholarly journals Design and Experimental Evaluation of a Vertical Lift Walker for Sit-to-Stand Transition Assistance

2012 ◽  
Vol 6 (1) ◽  
Author(s):  
Thomas C. Bulea ◽  
Ronald J. Triolo
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Lower Extremity ◽  
Grip Force ◽  
Hand Function ◽  
Electrical Power ◽  
Lower Extremity Weakness ◽  
Sit To Stand ◽  
Cord Injury ◽  
Vertical Lift

A walker capable of providing vertical lift support can improve independence and increase mobility of individuals living with spinal cord injury (SCI). Using a novel lifting mechanism, a walker has been designed to provide sit-to-stand assistance to individuals with partially paralyzed lower extremity muscles. The design was verified through experiments with one individual with SCI. The results show the walker is capable of reducing the force demands on the upper and lower extremity muscles during sit-to-stand transition compared to standard walkers. The walker does not require electrical power and no grip force or harness is necessary during sit-to-stand operation, enabling its use by individuals with limited hand function. The design concept can be extended to aid other populations with lower extremity weakness.

Differential Odds of Employment and Estimation of Earnings Among Those With Spinal Cord Injury

2019 ◽  
Vol 63 (2) ◽  
pp. 67-78 ◽  
Author(s):  
James S. Krause ◽  
Clara E. Dismuke-Greer ◽  
Melinda Jarnecke ◽  
Karla S. Reed
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Cross Sectional Study ◽  
Self Report ◽  
Sectional Study ◽  
Cross Sectional ◽  
Lower Odds ◽  
High School Certificate ◽  
Cord Injury ◽  
Optimal Quality

Our purpose was to identify demographic, educational, and injury-related characteristics associated with odds of employment and estimates of differential earnings among participants with spinal cord injury (SCI). Self-report assessments were obtained from 1,983 participants who had traumatic SCI, were 18+ years old, and less than 65 years of age. All were recruited into the current cross-sectional study from previous studies of health and aging from the Midwestern and Southeastern United States. Midwestern participants had 2.41 higher odds of employment. Older age at injury was associated with lower odds of employment. There were no sex differences in the odds of employment, but women had an estimated US$19,431 lower conditional earnings. Non-Hispanic Blacks had 69% lower odds of employment, and those working had an estimated US$12,058 lower earnings. Ambulatory participants had higher odds of employment (odds ratio [OR] = 4.66) and higher conditional earnings (US$17,277) than those with the most severe SCI. Those with 4-year or postgraduate degrees had substantially higher odds of employment (OR = 4.15, OR = 5.72, respectively) and higher conditional earnings (US$29,990, US$44,580, respectively) compared with those with a high school certificate or less. These findings underscore the importance of policies to promote the optimal quality employment outcomes for people with SCI.

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