Evaluation of an Arm Support With Trunk Motion Capability

2016 ◽  
Vol 10 (4) ◽  
Author(s):  
A. G. Dunning ◽  
M. M. H. P. Janssen ◽  
P. N. Kooren ◽  
J. L. Herder
Keyword(s):  
Range Of Motion ◽  
Daily Living ◽  
Loss Of Function ◽  
Semg Signal ◽  
Trunk Motion ◽  
Robotic Exoskeleton ◽  
Progressive Muscle Weakness ◽  
Trunk Movements ◽  
Arm Support ◽  
Arm Muscles

Due to progressive muscle weakness, the arm function in boys with Duchenne muscular dystrophy (DMD) reduces. An arm support can compensate for this loss of function. Existing arm supports are wheelchair bound, which restricts the ability to perform trunk movements. To evaluate the function of a body-bound arm support, a prototype (based on the Wilmington robotic exoskeleton (WREX) arm support) that allows trunk movements was built. In order to examine the effect of this device and to compare it with an existing wheelchair-bound device, three healthy subjects performed single joint movements (SJMs) and activities of daily living (ADL) with and without the devices. The range of motion (RoM) of the arm and the surface electromyography (sEMG) signal of five different arm muscles were measured. The range of motion increased when compared to the wheelchair-bound device, and the trunk motion was perceived as important to make specific movements easier and more natural, especially the more extreme movements like reaching for a far object and reaching to the top of the head. The sEMG signal was comparable to that of the wheelchair-bound device. This means that an arm support with trunk motion capability can increase the range of motion of the user, while the amount of support to the arm is equal.

INFLUENCE OF VARIOUS DAILY TASKS ON SEGMENTED TRUNK KINEMATICS

2015 ◽  
Vol 27 (06) ◽  
pp. 1550058 ◽  
Author(s):  
Scott P. Breloff ◽  
Li-Shan Chou
Keyword(s):  
Back Pain ◽  
Activities Of Daily Living ◽  
Range Of Motion ◽  
Daily Living ◽  
Random Order ◽  
Obstacle Crossing ◽  
Trunk Motion ◽  
Stair Ascent ◽  
Level Walking ◽  
Lower Lumbar

Back pain can affect up to 65% of the American population and cost the health care system approximately fifty billion dollars each year. Due to the difficulty with recording spine/trunk movement, several methods and models exist. The myriad of methods and the need for understanding of spine/trunk motion has led to a lack in a ‘gold-standard’ of treatment for individuals with back pain. Therefore, the purpose of this study was to examine the effect of different activities of daily living on the kinematics of individual trunk segments in young adults to determine how common ambulatory tasks will alter trunk motion compared to level walking. Young healthy adults completed, in a random order, four activities of daily living: level walking, obstacle crossing, stair ascent and descent using a previously validated model. Subjects were outfitted with a full body marker set which included a segmented trunk. Multi-segmented trunk angles between the three inferior segments, sacrum to lower lumbar [SLL], lower lumbar to upper lumbar [LLUL] and upper lumbar to lower thorax [ULLT], were calculated and compared between tasks. Peak flexion angles, instance of peak angle and range of motion were analyzed. The overall hypothesis that different spine levels will have altered kinematics during various activities of daily living was supported. Stair descent had smaller peak flexion angles than obstacle crossing and stair ascent. The instance of peak angle were different depending on trunk angle and daily task. The most inferior trunk angle — Sacrum-to-Lower Lumbar — had the largest range of motion during all four tasks in all three (sagittal, frontal and transverse) planes of motion. This study was able to show how various activities of daily living produce different motions in the three inferior segments of a multi-segmented trunk method. The results of this study are the first steps in understanding how the trunk responds on a daily basis and how those responses could lead to back pain.

scholarly journals Proximal humerus deformity, in a four-limb amputee following meningococcal septicaemia

2018 ◽  
pp. bcr-2018-226040
Author(s):  
Adeel Ikram ◽  
Kriti Singhania ◽  
Suhayl Tafazal ◽  
Amol Tambe
Keyword(s):  
Activities Of Daily Living ◽  
Range Of Motion ◽  
Daily Living ◽  
Proximal Humerus ◽  
Corrective Osteotomy ◽  
Growth Arrest ◽  
Varus Deformity ◽  
Loss Of Function ◽  
Meningococcal Septicaemia

We present a challenging case of proximal humerus varus deformity in a four-limb amputee, caused by growth arrest from meningococcal septicaemia. The deformity resulted in a loss of function for our patient with inhibition of activities of daily living, requiring corrective osteotomy to help improve the range of motion of the shoulder. We describe in detail the management of our patient, highlight the importance of the orthopaedic manifestations of meningococcal septicaemia, and demonstrate the importance of monitoring potential deformities from growth arrest in these patients.

scholarly journals A Modular Mobile Robotic Platform to Assist People with Different Degrees of Disability

2021 ◽  
Vol 11 (15) ◽  
pp. 7130
Author(s):  
Jose M. Catalan ◽  
Andrea Blanco ◽  
Arturo Bertomeu-Motos ◽  
Jose V. Garcia-Perez ◽  
Miguel Almonacid ◽  
...  
Keyword(s):  
Activities Of Daily Living ◽  
Daily Living ◽  
Occupational Therapists ◽  
Living Room ◽  
Key Factors ◽  
Robotic Platform ◽  
Robotic Exoskeleton ◽  
Simulated Home Environment ◽  
Wheel Chair ◽  
The Subject

Robotics to support elderly people in living independently and to assist disabled people in carrying out the activities of daily living independently have demonstrated good results. Basically, there are two approaches: one of them is based on mobile robot assistants, such as Care-O-bot, PR2, and Tiago, among others; the other one is the use of an external robotic arm or a robotic exoskeleton fixed or mounted on a wheelchair. In this paper, a modular mobile robotic platform to assist moderately and severely impaired people based on an upper limb robotic exoskeleton mounted on a robotized wheel chair is presented. This mobile robotic platform can be customized for each user’s needs by exploiting its modularity. Finally, experimental results in a simulated home environment with a living room and a kitchen area, in order to simulate the interaction of the user with different elements of a home, are presented. In this experiment, a subject suffering from multiple sclerosis performed different activities of daily living (ADLs) using the platform in front of a group of clinicians composed of nurses, doctors, and occupational therapists. After that, the subject and the clinicians replied to a usability questionnaire. The results were quite good, but two key factors arose that need to be improved: the complexity and the cumbersome aspect of the platform.

Cervical Spine Movement Sequencing During Flexion-Extension

2011 ◽  
Author(s):  
William J. Anderst ◽  
Michelle Schafman ◽  
William F. Donaldson ◽  
Joon Y. Lee ◽  
James D. Kang
Keyword(s):  
Cervical Spine ◽  
Range Of Motion ◽  
Daily Living ◽  
X Rays ◽  
Clinical Tool ◽  
Normal Range ◽  
Kinematic Data ◽  
Flexion Extension ◽  
Functional Movements ◽  
Spine Movement

Static flexion-extension x-rays are the most common clinical tool used to assess abnormal motion of the cervical spine. Despite their widespread use (over 168,000 cases per year), the clinical efficacy of flexion-extension radiographs of the cervical spine has yet to be proven1. Limitations of static flexion-extension x-rays include data collection during static positions that may not accurately represent dynamic behavior, and the fact that data is collected at end range of motion positions, not in more frequently encountered mid-range positions. Consequently, static x-rays may not reveal movement abnormalities that occur during activities of daily living and lead to pain and degeneration. Therefore, it may be advantageous to analyze cervical spine kinematic data collected during dynamic, functional movements performed through an entire range of motion (not just the endpoints). Furthermore, the literature confirms there is substantial variability in “normal” range of motion and translation during flexion-extension1, making it difficult to reliably identify abnormal motion. Therefore, it may also be beneficial to evaluate alternative motion parameters that may reliably identify abnormal motion.

The functional range of motion of the finger joints

2014 ◽  
Vol 40 (4) ◽  
pp. 406-411 ◽  
Author(s):  
G. I. Bain ◽  
N. Polites ◽  
B. G. Higgs ◽  
R. J. Heptinstall ◽  
A. M. McGrath
Keyword(s):  
Activities Of Daily Living ◽  
Range Of Motion ◽  
Daily Living ◽  
Indications For Surgery ◽  
Active Motion ◽  
Finger Joints ◽  
Hand Grip ◽  
Significant Difference ◽  
Function Test ◽  
Distal Interphalangeal

The purpose of this study was to measure the functional range of motion of the finger joints needed to perform activities of daily living. Using the Sollerman hand grip function test, 20 activities were assessed in ten volunteers. The active and passive range of motion was measured with a computerized electric goniometer. The position of each finger joint was evaluated in the pre-grasp and grasp positions. The functional range of motion was defined as the range required to perform 90% of the activities, utilizing the pre-grasp and grasp measurements. The functional range of motion was 19°–71°, 23°–87°, and 10°–64° at the metacarpophalangeal, proximal interphalangeal, and distal interphalangeal joints, respectively. This represents 48%, 59%, and 60% of the active motion of these joints, respectively. There was a significant difference in the functional range of motion between the joints of the fingers, with the ulnar digits having greater active and functional range. The functional range of motion is important for directing indications for surgery and rehabilitation, and assessing outcome of treatment.

scholarly journals Treatment of Habitual Patellar Dislocation in an Adult by Isolated Medial Patellofemoral Ligament Reconstruction

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Yoann Bohu ◽  
Mathieu Thaunat ◽  
Nicolas Lefevre ◽  
Shahnaz Klouche ◽  
Serge Herman ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Patellar Dislocation ◽  
Medial Patellofemoral Ligament ◽  
Functional Results ◽  
Tendon Graft ◽  
Loss Of Function ◽  
Leg Length ◽  
Assessment Scores ◽  
Gracilis Tendon Graft ◽  
Bone Anomalies

Habitual patellar dislocations are rare in adults. Treatment is difficult, and often associated with significant morbidity. A 30-year-old man, construction worker, presented a habitual patellofemoral dislocation which was caused by direct trauma to the knee as a child. Clinical examination showed a 3 cm leg-length discrepancy with no rotational deformities. The patient had a limp and loss of function; the patella was dislocated laterally and had locked at 20° of flexion with a range of motion of 0°/0°/30°. Open surgery was performed associating lateral retinacular release, reconstruction of the medial patellofemoral ligament with an ipsilateral gracilis tendon graft. The postoperative course was simple with no complications. Four months after surgery the patient has begun working normally. At the final 50-month clinical follow-up, knee range of motion was 0°/0°/130°, and functional results were excellent on clinical assessment scores of Kujala, Lysholm, and subjective IKDC. MPFL reconstruction alone seems effective in habitual posttraumatic patellar dislocation in adults without any associated bone anomalies.

Two functionally different synergies during arm reaching movements involving the trunk

1995 ◽  
Vol 73 (5) ◽  
pp. 2120-2122 ◽  
Author(s):  
S. Ma ◽  
A. G. Feldman
Keyword(s):  
Motor Control ◽  
Degrees Of Freedom ◽  
Arm Movements ◽  
The Other ◽  
Reaching Movements ◽  
Positional Error ◽  
Trunk Motion ◽  
Arm Reaching ◽  
Trunk Movements ◽  
The Right

1. To address the problem of the coordination of a redundant number of degrees of freedom in motor control, we analyzed the influence of voluntary trunk movements on the arm endpoint trajectory during reaching. 2. Subjects made fast noncorrected planar movements of the right arm from a near to a far target located in the ipsilateral work space at a 45 degrees angle to the sagittal midline of the trunk. These reaching movements were combined with a forward or a backward sagittal motion of the trunk. 3. The direction, positional error, curvature, and velocity profile of the endpoint trajectory remained invariant regardless of trunk movements. Trunk motion preceded endpoint motion by approximately 175 ms, continued during endpoint movement to the target, and outlasted it by 200 ms. This sequence of trunk and arm movements was observed regardless of the direction of the endpoint trajectory (to or from the far target) or trunk movements (forward or backward). 4. Our data imply that reaching movements result from two control synergies: one coordinates trunk and arm movements leaving the position of the endpoint unchanged, and the other produces interjoint coordination shifting the arm endpoint to the target. The use of functionally different synergies may underlie a solution of the redundancy problem.

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