2A1-12 Study on Detection of User Intention for Power Assist Orthosis for Flexion and Extension of Elbow Joint

2005 ◽  
Vol 2005 (0) ◽  
pp. 151-153
Author(s):  
Yukio HORIGUCHI ◽  
Hiroyuki ONO ◽  
Satoshi TSUKAMOTO ◽  
Tetsuo SAWARAGI ◽  
Masahiro SATO
2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Takuyuki Endo ◽  
Toshimitsu Hamasaki ◽  
Ryuhei Okuno ◽  
Masaru Yokoe ◽  
Harutoshi Fujimura ◽  
...  

Parkinsonian rigidity has been thought to be constant through a full range of joint angle. The aim of this study was to perform a detailed investigation of joint angle dependency of rigidity. We first measured muscle tone at the elbow joint in 20 healthy subjects and demonstrated that an angle of approximately 60° of flexion marks the division of two different angle-torque characteristics. Then, we measured muscle tone at the elbow joint in 24 Parkinson’s Disease (PD) patients and calculated elastic coefficients in flexion and extension in the ranges of 10°–60° (distal) and 60°–110° (proximal). Rigidity as represented by the elastic coefficient in the distal phase of elbow joint extension was best correlated with the UPDRS rigidity score (r=0.77). A significant difference between the UPDRS rigidity score 0 group and 1 group was observed in the elastic coefficient in the distal phase of extension (P<0.0001), whereas no significant difference was observed in the proximal phase of extension and in each phase of flexion. Parkinsonian rigidity shows variable properties depending on the elbow joint angle, and it is clearly detected at the distal phase of elbow extension.


1974 ◽  
Vol 40 (3) ◽  
pp. 405-409 ◽  
Author(s):  
James B. Campbell ◽  
Kalmon D. Post ◽  
Robert A. Morantz

✓ A method is described for relief of dysesthetic pain or progression of the motor and sensory deficits in previously transposed ulnar nerves that have become entrapped in the operative scar. After an external neurolysis to prevent a recurrence, a Silastic strip 15 cm long and 3 cm wide is sutured in place beneath the re-exposed nerve and covered by a strip of identical dimensions, which is also fixed to the soft tissues. The elbow joint is maintained in moderate flexion for 3 weeks by a posterior plaster splint. It is believed that this sheathing, while permitting movement of the nerve with flexion and extension, prevents re-encumbrance with adhesions. In nine cases so treated, compressive adhesions were encountered along the course of the transposed nerve rather than entrapment at the point where it has previously been brought out through the fascia. After operation, five out of nine patients maintained significant lasting motor and sensory improvement, verified bioelectrically. Minor sensory improvement was experienced by two others, and two remained unchanged.


Author(s):  
Divya Varma ◽  
Manisha Kishanrao Dawre ◽  
Sangeeta Gorakshanath Kanade

                       Acharya Sushruta has described 107 marmas. Marma is constituted as combination of Mamsa (muscle), Sira (vessels), Snayu (nerve, tendon, ligament), Asthi(bone) and  Sandhi (joints).This five tissue participate to play vital role in any injury that occur to any of the marma. Kurpara marma is located at the junction of bahu (arm) and prabahu (forearm) i.e exactly at the elbow joint in both the upper limbs. Kurpara marma is one of the Vaikayalkara marma (loss of function). Vaikalyakara marma means the marma which causes deformity on getting injured.. An injury to this marma causes deformity, pain and swelling.  The articulating surfaces that form the elbow joint occurs between the trochlea and capitulum of humerus and trochlear notch of the ulna and head of radius. Elbow joint is responsile of flexion and extension of the upper limb.Tennis elbow is one of the common disease that occur on lateral side of the elbow due to Sprain of radial collateral ligament and tearing of fibres of the extensor carpi radialis brevis.It causes pain and restricted moment of the hand. Preventive measures can be used to reduce the symptoms and lessen the pain.


2019 ◽  
Vol 12 (25) ◽  
pp. 89-93
Author(s):  
Fezaa Sh. Neda

Elbow stiffness is hard to treat and commonly resulted from trauma or degenerative arthritis. This study aimed to demonstrate the effectiveness of using ultrasound therapy in management of stiff elbow joint resulted from several etiological factors. A total number of 42 patients (35 male and 7 female) allocated randomly from the Department of Physiotherapy at Al-yarmouk Teaching Hospital during 2013. Each patient examined physically by physiotherapist taking in consideration the measurement of the joint movement angle using goniometer in flexion and the extension, and the pain score using visual analogue scale (VAS). Ultrasound therapy initiated thrice weekly for two weeks. At the time of entry, the means degree of flexion and extension movements were 148.45 and 113.33º. Ultrasound therapy significantly reduced the pain from of 1.238±0.932 to 0.38± 0.538score. Significant improvement observed in patients aged more than 20 years and the improvement in flexion elbow significantly correlated with the frequency of ultrasound. In Conclusions ultrasound therapy is safe, effective and provided pain relieve as well as wide range of movement in post-traumatic elbow stiffness.


Author(s):  
Rosdiyana Samad ◽  
Muhammad Zabri Abu Bakar ◽  
Dwi Pebrianti ◽  
Mahfuzah Mustafa ◽  
Nor Rul Hasma Abdullah

This paper presents the elbow flexion and extension rehabilitation exercise system using marker-less Kinect-based method. The proposed exercise system is developed for the upper limb rehabilitation application that utilizes a low cost depth sensor. In this study, the Kinect skeleton tracking method is used to detect and track the joints of upper limb and then measure the angle of the elbow joint. The users perform the exercise in front of the Kinect sensor and the computer monitor. At the same time, they can see the results that displayed on the screen in real-time. The measurement of elbow joint angles are recorded automatically and has been compared to the reference values for the analysis and validation. These reference values are obtained from the normal range of motion (ROM) of the elbow. The results show the average flexion angle of the elbow joint that achieved by the normal user is 139.1° for the right hand and 139.2° for the left hand. Meanwhile, the average extension angle is 1.72° for the right hand and 2.0° for the left. These measurements are almost similar to the standard range of motion (ROM) reference values. The skeleton tracking works well and able to follow the movement of the upper arm and forearm in real-time.


2021 ◽  
Author(s):  
◽  
D. L. Aguilar Jiménez

The elbow joint is key in the functionality of the upper limbs and is used in many activities. In this sense, different pathologies and trauma can affect the Range Of Motion (ROM) and limit the patient’s capabilities such as playing sports, eating, drinking, brushing teeth, among others. Due to the problems described above, we have designed a prototype video game in Python, which is controlled by flexion and extension movements of the elbow. To develop it, we used OpenCV library and Mediapipe framework. The first one oversees image processing that helped us with the registration of the patient's movements in real time by means of the webcam. The final game can be used as a tool to ease the patient rehabilitation exercises.


2004 ◽  
Vol 9 (5) ◽  
pp. 1-11
Author(s):  
Patrick R. Luers

Abstract The AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), Fifth Edition, defines a motion segment as “two adjacent vertebrae, the intervertebral disk, the apophyseal or facet joints, and ligamentous structures between the vertebrae.” The range of motion from segment to segment varies, and loss of motion segment integrity is defined as “an anteroposterior motion of one vertebra over another that is greater than 3.5 mm in the cervical spine, greater than 2.5 mm in the thoracic spine, and greater than 4.5 mm in the lumbar spine.” Multiple etiologies are associated with increased motion in the cervical spine; some are physiologic or compensatory and others are pathologic. The standard radiographic evaluation of instability and ligamentous injury in the cervical spine consists of lateral flexion and extension x-ray views, but no single pattern of injury is identified in whiplash injuries. Fluoroscopy or cineradiographic techniques may be more sensitive than other methods for evaluating subtle abnormal motion in the cervical spine. The increased motion thus detected then must be evaluated to determine whether it represents normal physiologic motion, normal compensatory motion, motion related to underlying degenerative disk and/or facet disease, or increased motion related to ligamentous injury. Imaging studies should be performed and interpreted as instructed in the AMA Guides.


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