• 제어로봇시스템학회논문지
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• 제14권7호
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• pp.672-678
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• 2008

This paper proposes a new rehabilitation robot with upper and lower limb connections for gait training. As humans change a walking speed, their nervous systems adapt muscle activation patterns to modify arm swing for the appropriate frequency. By analyzing this property, we can find a relation between arm swinging and lower limb motions. Thus, the lower limb motion can be controlled by the arm swing for walking speed adaptation according to a patent's intension. This paper deals with the design aspects of the suggested gait rehabilitation robot, including a trajectory planning and a control strategy. The suggested robot is mainly composed of upper limb and lower limb devices, a body support system. The lower limb device consists of a slider device and two 2-dof footpads to allow walking training at uneven and various terrains. The upper limb device consists of an arm swing handle and switches to use as a user input device for walking. The body support system will partially support a patient's weight to allow the upper limb motions. Finally, we showed simulation results for the designed trajectory and controller using a dynamic simulation tool.

• 대한물리의학회지
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• 제4권3호
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• pp.183-192
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• 2009

Purpose：This study was conducted to investigate whether modified CIMT with Kinesio-Taping on paretic upper limb effects upper limb function in stroke patients in comparison to those receiving only modified CIMT. Methods：20 out-patients with hemiplegia were randomly assigned to either an experimental or a control group. Both groups received modified CIMT during a 10-week period. Additionally, an experimental group received modified CIMT with Kinesio-Taping on paretic upper limb and trunk. Results：In Manual function test, Grip strength, Jebsen-Taylor hand function test, MAL(Motor Activity Log) and Functional independence measure (FIM) were significantly different at all intervals of the study period(0, 3, 6, 10-week) in the experimental and control groups(p<.05). Exceptionally there was no significant difference in Jebsen-Taylor hand function test between the experimental and control groups. Conclusion：These results suggest that modified CIMT with Kinesio-taping improve the upper limb function. And also increase usage of affected upper limb and assist in daily living activity more than only modified CIMT.

• 재활복지공학회논문지
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• 제5권1호
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• pp.79-85
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• 2011

본 논문은 뇌졸중에 의한 상지 편마비 환자의 재활훈련을 위한 동력보조형 상지재활훈련기의 설계를 제안하였다. 설계된 상지재활훈련기는 3자유도를 가지고 있으며, 검지와 손목은 독립적으로, 그리고 나머지 손가락은 하나의 모듈로 굽힘과 폄 동작이 가능하다. 손목 기구는 복동식 공암실린더를, 손가락 기구에는 두 개의 전동식 선형구동기를 적용하여 동작을 보조하도록 하였다. 설계를 기반으로 프로토타입 상지재활훈련기를 제작하였으며, 0.8mm이내의 오차로 정상상태에 수렴하도록 위치제어기를 구현하였다. 실험의 결과로부터 동력보조용 상지훈련기가 실현가능함을 보였다.

• 로봇학회논문지
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• 제18권4호
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• pp.367-375
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• 2023

Most partial hand amputees experience limited wrist movement, which hinders the efficient functioning of upper limb, affecting hand-to-use coordination and the usability of the prosthetic hand. This limitation can lead to secondary musculoskeletal issues due to repetitive compensatory movement patterns. However, current partial hand prosthetic lack rotational wrist movement due to challenges in accommodating various hand shapes and limited space. In our study, we proposed a prosthetic hand with a wrist rotation module for partial hand amputees, aiming to reduce compensatory movement. To validate the proposed wrist rotation module, we conducted motion analysis during reach-to-grasp task. Furthermore, during the Jebsen-Taylor hand function test, we evaluated both the effect on upper limb movement and the usability of the prosthetic hand, comparing configurations with and without the wrist rotation module. The results showed that the prosthetic hand equipped with rotational wrist movements reduces compensatory movements and promotes efficient upper limb movement patterns. This finding highlights the value of incorporating a wrist rotation module in prosthetic hands to improve upper limb movement for partial hand amputees.

• 대한인간공학회지
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• 제29권3호
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• pp.311-320
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• 2010

This study aimed to examine the development and characteristics of the workers with upper limb musculoskeletal symptoms and disorders and to analyze the upper limb musculoskeletal symptoms and disorders for its relationship with the individual socio-demographic characteristics. This study investigated the effect on the limitations of physical activities using standardized surveillance tool and clinical diagnosis. Musculoskeletal symptoms and the limitations of physical activities were examined. The clinical diagnosis of musculoskeletal disorders were carried out by physical examination, radiological examination and electromyography-electroneuronography for 22 workers in kitchen hood assembly process and 50 workers in toggle process of leather product manufacturing. The proportion of workers with musculoskeletal disorders was higher and the DASH score was also statistically higher in female and aged workers with longer working hours, longer household working hours, less leisure/hobby activity and higher physical load. Physical activities component score increased in the following order: workers in normal health, workers with musculoskeletal symptoms, and workers with musculoskeletal disorders as clinically diagnosed. Score for each DASH component increased in the following order: sports/performing arts ability, social activities, specific physical functional activities, work or other regular daily activities, work ability, psychological activities, insomnia and upper limb symptoms. The overall and each component DASH scores were higher in workers with symptoms of status praesens and of more severity, and receiving medical intervention. Musculoskeletal symptoms and disorders are associated with individual socio-demographic characteristics, and DASH score for physical activities of upper limb was higher in workers with musculoskeletal disorders. Musculoskeletal symptoms and disorders have a remarkable epidemiological significance for physical activities, social activities, work or other regular daily activities, upper limb symptoms and insomnia, where work ability, sports/performing arts ability and preventive measure is needed.

• 대한물리치료과학회지
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• 제13권2호
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• pp.85-98
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• 2006

This study was performed to examine the influences of the mental practice to the hemiplegic upper limb motor function improvement. 20 minute neurologic treatment based on the neurophysiological theory, 10 minute activities of daily living training, and 10 minute mental practice 5 times a week were given in turn to the experimental group(N=11). On the other hand 20 minute neurologic treatment, and 10 minute activities of daily living training 5 times a week were given in turn to the control group(N=11). Both Fugl-Meyer Assessment Scale and Manual Function Test were used to evaluate upper limb motor recovery, upper limb motor function and movement ability. And the Motor Activity Log; Amount of Use and Motor Activity Log; Quality of Movement before training, 2 weeks after training, and 4 weeks after training were measured to assess the upper limb motor quantitatively and qualitatively each. The results are as follows. 1) Considering the interactions of the rate of change on the upper limb motor recovery, motor function, movement ability improvement, and qualitative motor improvement in ADL of experimental group and control group, the change rates of experimental group were found to be greater than those of the control group. 2) In experimental group, the higher the achievements were, the better upper motor recovery was.

• 한국융합학회논문지
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• 제12권2호
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• pp.95-101
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• 2021

본 연구의 목적은 국소 진동 자극과 양측성 팔 훈련의 융합 중재를 뇌졸중 환자에게 적용했을 때, 팔 기능 개선에 미치는 영향을 알아보는 것이다. 20명의 뇌졸중 환자를 국소 진동 자극과 양측성 팔 훈련의 융합 중재를 실시한 실험군과 양측성 팔 훈련만 실시한 대조군으로 나누어, 회기 당 30분씩 4주간, 총 20회 실시하였다. 진동자극은 실험군의 손상측 팔에 훈련이 이루어지는 30분간 적용되었다. 평가는 손상 측 팔의 회복정도와 양측 팔 의 사용량, 양손 사용의 수행의 질과 만족도를 측정하였으며, 대응표본 t-검정을 사용하여 그룹 내, 공분산 분석을 사용하여 그룹 간 비교를 하였다. 연구 결과, 실험군은 대조군보다 손상 측 팔의 기민성과 손상 측의 사용량에서 유의한 차이의 변화를 보였다. 효과 크기는 모든 항목에서 작은 효과 크기 이상의 차이를 보였다. 본 연구를 통해, 국소 진동 자극과 양측성 팔 훈련의 융합 중재가 뇌졸중 환자의 팔 기능 회복을 위한 효율적 중재로써 임상에서 사용 될 수 있을 것으로 생각된다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권12호
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• pp.5878-5904
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• 2017

This paper proposes a novel intelligent wheelchair vehicle system that enables upper limb exercises, lower limb standing exercises and rehabilitation training in a daily life. The proposed system, which can be used to prevent at least the degeneration of body movements and further atrophy of musculoskeletal system functions, considers the characteristics and mobility of the old and the disabled. Its main purpose is to help the old and the disabled perform their daily activities as much as they can, minimizing the extent of secondary disabilities. In other words, the system will provide the old and the disabled with regular and quantitative rehabilitation exercises and diagnosis using the wheelchair-based upper/lower limb rehabilitation vehicle system and then verify their effectiveness. The system comprises an electric wheelchair, a biometric module to identify individual characteristics, and an upper/lower limb rehabilitation vehicle. In this paper the design and configuration of the developed vehicle is described, and its operation method is presented. Moreover, to verify the tracking performance of the proposed system, dangerous situations according to biosignal changes occurring during the rehabilitation exercise of a non-disabled examinee are analyzed and the performance of the upper/lower limb rehabilitation exercise function depending on muscle strength is evaluated through a neural network algorithm.

• Journal of Chest Surgery
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• 제48권4호
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• pp.246-251
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• 2015

Background: Upper limb ischemia is less common than lower limb ischemia, and relatively few cases have been reported. This paper reviews the epidemiology, etiology, and clinical characteristics of upper limb ischemia and analyzes the factors affecting functional sequelae after treatment. Methods: The records of 35 patients with acute and chronic upper limb ischemia who underwent treatment from January 2007 to December 2012 were retrospectively reviewed. Results: The median age was 55.03 years, and the number of male patients was 24 (68.6%). The most common etiology was embolism of cardiac origin, followed by thrombosis with secondary trauma, and the brachial artery was the most common location for a lesion causing obstruction. Computed tomography angiography was the first-line diagnostic tool in our center. Twenty-eight operations were performed, and conservative therapy was implemented in seven cases. Five deaths (14.3%) occurred during follow-up. Twenty patients (57.1%) complained of functional sequelae after treatment. Functional sequelae were found to be more likely in patients with a longer duration of symptoms (odds ratio, 1.251; p=0.046) and higher lactate dehydrogenase (LDH) levels (odds ratio, 1.001; p=0.031). Conclusion: An increased duration of symptoms and higher initial serum LDH levels were associated with the more frequent occurrence of functional sequelae. The prognosis of upper limb ischemia is associated with prompt and proper treatment and can also be predicted by initial serum LDH levels.

• 한국의류산업학회지
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• 제23권1호
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• pp.106-117
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• 2021

This study proposes a design process for an upper limb assistive wearable soft robot that will enable the development of a clothing product for an upper limb assistive soft robot. A soft robot made of a flexible and soft material that compensates for the shortcomings of existing upper limb muscle strength assistive devices is being developed. Consequently, a clothing process of the upper limb assistive soft robot is required to increase the possibility of wearing such a device. The design process of the upper limb auxiliary soft robot is presented as follows. User analysis and required performance deduction-Soft robot design-upper limb assistive wearable soft robot prototype design and production-evaluation. After designing the clothing according to the design process, the design was revised and supplemented repeatedly according to the results of the clothing evaluation. In the post-production evaluation stage, the first and second prototypes were attached to actual subjects, and the second prototype showed better results. The developed soft robot evaluated if the functionality as a clothing function and the functionality as the utility of the device were harmonized. The convergence study utilized a process of reducing friction conducted through an understanding and cooperation between research fields. The results of this study can be used as basic data to establish the direction of prototype development in fusion research.