Analysis and prediction of upper extremity movements by cyclograms

Open Medicine ◽  
2014 ◽  
Vol 9 (6) ◽  
pp. 814-820 ◽  
Author(s):  
Patrik Kutilek ◽  
Vladimir Socha ◽  
Karel Hana

AbstractQuantification of upper extremity movement is a common objective in both research and clinical practice. Currently, methods based on angle-angle diagrams, also called cyclograms, seem to be promising. Nevertheless, compared to the study of lower limbs, the concept of angle-angle diagrams has not been systematically used to study upper limb movements during walking. The paper describes two examples of new methods based on angle-angle diagrams for application in rehabilitation and assistive robotics. The cyclograms represent information about the relationship between the angles and their changes over time. We used cyclograms as patterns for learning artificial neural networks and predicting the movement of upper-limb. Together with artificial intelligence, cyclograms offer wide scope of application in prosthesis control systems. Using bilateral cyclogram, the information about the relationship between the right and left arm joint angles is used to evaluate the symmetry of movements. The method based on the orientation of the bilateral cyclogram can be used as an additional method for determining the symmetry of movements of the upper limbs or exo-prosthesis.

2008 ◽  
Vol 24 (3) ◽  
pp. 280-287 ◽  
Author(s):  
Yong “Tai” Wang ◽  
Konstantinos Dino Vrongistinos ◽  
Dali Xu

The purposes of this study were to examine the consistency of wheelchair athletes’ upper-limb kinematics in consecutive propulsive cycles and to investigate the relationship between the maximum angular velocities of the upper arm and forearm and the consistency of the upper-limb kinematical pattern. Eleven elite international wheelchair racers propelled their own chairs on a roller while performing maximum speeds during wheelchair propulsion. A Qualisys motion analysis system was used to film the wheelchair propulsive cycles. Six reflective markers placed on the right shoulder, elbow, wrist joints, metacarpal, wheel axis, and wheel were automatically digitized. The deviations in cycle time, upper-arm and forearm angles, and angular velocities among these propulsive cycles were analyzed. The results demonstrated that in the consecutive cycles of wheelchair propulsion the increased maximum angular velocity may lead to increased variability in the upper-limb angular kinematics. It is speculated that this increased variability may be important for the distribution of load on different upper-extremity muscles to avoid the fatigue during wheelchair racing.


2019 ◽  
Vol 12 (2) ◽  
pp. 185-215
Author(s):  
Elise Muir

This paper investigates the relationship between legislative provisions and fundamental rights by analyzing the Egenberger, IR, Bauer, Max-Planck and Cresco cases. This paper understands these cases as an invitation to reflect on whether, and if so, to what extent, EU fundamental rights' legislation, read in conjunction with the Charter, could have an impact on the scope of application, substance and/or legal effects of the Charter. This paper argues that the Court of Justice's recent case law can be understood as allowing for EU legislative guidance on fundamental rights to interact in an upward process with the rights enshrined in norms with the same rank as EU primary law. This paper sheds light on the constitutional implications of the overlaps between legislation and constitutional norms on fundamental norms while other contributions in this special issue address effectiveness and the right to an effective remedy in a broader sense.


Sensors ◽  
2021 ◽  
Vol 21 (23) ◽  
pp. 7884
Author(s):  
Celia Francisco-Martínez ◽  
Juan Prado-Olivarez ◽  
José A. Padilla-Medina ◽  
Javier Díaz-Carmona ◽  
Francisco J. Pérez-Pinal ◽  
...  

Quantifying the quality of upper limb movements is fundamental to the therapeutic process of patients with cerebral palsy (CP). Several clinical methods are currently available to assess the upper limb range of motion (ROM) in children with CP. This paper focuses on identifying and describing available techniques for the quantitative assessment of the upper limb active range of motion (AROM) and kinematics in children with CP. Following the screening and exclusion of articles that did not meet the selection criteria, we analyzed 14 studies involving objective upper extremity assessments of the AROM and kinematics using optoelectronic devices, wearable sensors, and low-cost Kinect sensors in children with CP aged 4–18 years. An increase in the motor function of the upper extremity and an improvement in most of the daily tasks reviewed were reported. In the population of this study, the potential of wearable sensors and the Kinect sensor natural user interface as complementary devices for the quantitative evaluation of the upper extremity was evident. The Kinect sensor is a clinical assessment tool with a unique markerless motion capture system. Few authors had described the kinematic models and algorithms used to estimate their kinematic analysis in detail. However, the kinematic models in these studies varied from 4 to 10 segments. In addition, few authors had followed the joint assessment recommendations proposed by the International Society of Biomechanics (ISB). This review showed that three-dimensional analysis systems were used primarily for monitoring and evaluating spatiotemporal variables and kinematic parameters of upper limb movements. The results indicated that optoelectronic devices were the most commonly used systems. The joint assessment recommendations proposed by the ISB should be used because they are approved standards for human kinematic assessments. This review was registered in the PROSPERO database (CRD42021257211).


2019 ◽  
Vol 26 (3) ◽  
pp. 441-448
Author(s):  
Maria Antonia Panascì

This case note examines the judgment of Court of Justice of the European Union delivered in Joined Cases C-569/16 and C-570/16 Stadt Wuppertal v. Maria Elisabeth Bauer and Volker Willmeroth v. Martina Broßonn on 6 November 2018. It engages with the noteworthy aspects of the ruling, such as the horizontal direct effect of the Charter of Fundamental Rights of the European Union (the Charter), the relationship between primary and secondary law in the European Union legal order and the scope of application of the Charter.


VASA ◽  
2005 ◽  
Vol 34 (3) ◽  
pp. 195-197
Author(s):  
Atahan ◽  
Cetinus ◽  
Yasim

Anomalies of the ramification of arteries in the upper extremity are an important consideration due to the large number of invasive procedures, both diagnostic and therapeutic, performed particularly in the cubital region of the upper limb. It is important for health professionals to be aware of arterial variation to prevent complications during diagnostic and therapeutic procedures. Here, we describe a rare unilateral anomaly of the brachial artery which courses subcutaneously through the right arm to the cubital region in a 75 year-old female patient.


Foot & Ankle ◽  
1988 ◽  
Vol 8 (4) ◽  
pp. 198-202 ◽  
Author(s):  
B.C. Didia ◽  
E.A. Nyenwe

A total of 996 school pupils between the ages of 5 and 12 yr were studied for the relationship between foot breadth and limb dominance. The test of significance and chi-square analysis were used in the calculation. Limb dominance is divided into upper limb dominance (handedness) and lower limb dominance (footedness). No asymetry or difference was found between the right and left foot ( P < 0.69) in terms of foot breadth. A significant correlation between limb dominance and foot breadth was not found ( P < 0.01). An ipsolateral relationship exists between the two forms of limb dominance—92.37% of right handers are right footed while 51.85% of left handers are left footed. As an offshot of this work an equation for the estimation of a child's age from his foot breadth is given.


2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
Damian Sikora ◽  
Małgorzata Pałac ◽  
Andrzej Myśliwiec ◽  
Tomasz Wolny ◽  
Paweł Linek

Objectives. The purpose of the study was to evaluate the correlation between dynamic test results obtained on a stabilometric platform and the results achieved on the Y-balance test (Y-BT). Method. The study group consisted of 52 adolescent athletes, aged 14 to 17 years. Each participant was evaluated in the scope of their ability to maintain dynamic balance using the Y-BT as well as via dynamic tests on the ‘Alfa’ stabilometric platform. The following parameters were analysed: (a) from the Y-BT—relative reach of the right and left lower limbs in the anterior, posterolateral, and posteromedial directions, as well as the side-to side difference in relative reach for each direction and (b) from the ‘Alfa’ platform—path length and time to reach the target using right and left lower limbs in the anterior and posterior directions. Results. A correlation between the results obtained on the stabilometric platform and the Y-BT was found only for the posteromedial direction. Statistical analysis demonstrated that the increased difference between the right and left lower limbs in the posteromedial test is related to an increase in time taken to reach the points located forward and to the left, and backwards and to the right, as well as an increase in the overall time required to complete the task on the stabilometric platform. Conclusions. The results from the Y-BT and stabilometric platform are weakly related in adolescents. These findings indicate that the Y-BT and stabilometric platform analyse different kinds of dynamic balance in adolescents. Thus, these tools should not be used interchangeably in clinical practice or scientific research.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
A. Van de Winckel ◽  
D. De Patre ◽  
M. Rigoni ◽  
M. Fiecas ◽  
T. J. Hendrickson ◽  
...  

AbstractCognitive Multisensory Rehabilitation (CMR) is a promising therapy for upper limb recovery in stroke, but the brain mechanisms are unknown. We previously demonstrated that the parietal operculum (parts OP1/OP4) is activated with CMR exercises. In this exploratory study, we assessed the baseline difference between OP1/OP4 functional connectivity (FC) at rest in stroke versus healthy adults to then explore whether CMR affects OP1/OP4 connectivity and sensorimotor recovery after stroke. We recruited 8 adults with chronic stroke and left hemiplegia/paresis and 22 healthy adults. Resting-state FC with the OP1/OP4 region-of-interest in the affected hemisphere was analysed before and after 6 weeks of CMR. We evaluated sensorimotor function and activities of daily life pre- and post-CMR, and at 1-year post-CMR. At baseline, we found decreased FC between the right OP1/OP4 and 34 areas distributed across all lobes in stroke versus healthy adults. After CMR, only four areas had decreased FC compared to healthy adults. Compared to baseline (pre-CMR), participants improved on motor function (MESUPES arm p = 0.02; MESUPES hand p = 0.03; MESUPES total score p = 0.006); on stereognosis (p = 0.03); and on the Frenchay Activities Index (p = 0.03) at post-CMR and at 1-year follow-up. These results suggest enhanced sensorimotor recovery post-stroke after CMR. Our results justify larger-scale studies.


Author(s):  
A.A. Bespalenko ◽  
A.A. Buryanov ◽  
Ie. V. Tsema ◽  
A.V. Dinets

The aim – to identify and analyze causes for reamputations in military personnel with limb amputations due to ATO in East Ukraine. Patients and methods. All military personnel of the AFU within ATO was eligible for the study with diagnosis of limb amputations in the period from 01.06.2014 to 30.06.2016, and which were treated in hospitals of the Ministry of Defense of Ukraine. Among 7091 patients with injuries, 152 patients with limb amputations were identified. Results and discussion. Out of 152 patients, 25 (16%) underwent limbs reamputation, whereas 127 (84%) patients underwent amputation once. Patients in the study groups did not differ in age. Amputation was performed on the upper limb in 41 (32%) in the group of patients with amputations, which is significantly higher as compared to 2 (8%) patients in the reamputation group (p = 0.014). Analyses the level of amputations of the upper extremity showed no difference in the parameters. In 23 (92%) patients in the group with reamputation amputation of the lower limbs were diagnosed significantly more often as compared to 86 (68%) patients in the amputation group (p = 0.014). Analyses of the level of amputation of the lower extremity revealed that almost 3 times more often amputation was performed at the level of the ankle in the group of patients with reputations - 8 (32%) patients, as compared to 15 (12%) patients in the amputation group (p = 0.03). However, linear regression did not show a significant difference of these parameters in reamputations. Amputation of one upper extremity in the reamputation group was diagnosed 7 times less frequent - 1(4%) patient less often than in the amputation group - 37(29%) patients (p = 0.005). Conclusions: The results of the study of the injured in a hybrid war indicate that reamputations are more often associated with amputations at the level of the upper limb, but are less often diagnosed in patients with amputation of the lower extremity. Reamputations are more often performed with trauma of one limb. Clinical features in patients injured in the ATO zone in the East Ukraine demonstrate the frequency and characteristics of re-arrests that are different from other armed conflicts.


2021 ◽  
Vol 26 (03) ◽  
pp. 345-350
Author(s):  
Filippo M. Senes ◽  
Maria Grazia Calevo ◽  
Roberto Adani ◽  
Carla Baldrighi ◽  
Franco Bassetto ◽  
...  

Background: Although hand and upper limb malformations are quite frequent, up to now very few reports have been published on epidemiology. The aim of this study is to evaluate the number of infants who presented with hand and upper limb malformations from 2010 to 2015 in Italy. Methods: A retrospective analysis of a pediatric population presenting with hand and upper extremity malformations was carried out, gathering reports achieved from eight Italian Centers of pediatric hand surgery. Other factors such as gender, date and region of birth, family distribution of malformations and associated syndromes, were analysed. Results: Out of 3,100,421 live births, 765 children presented with hand and upper limb malformations. The incidence was 2,5/10,000 live births with a predominance of males and the right side. Radial polydactyly was the anomaly with the highest percentage, closely followed by simple syndactyly, simbrachidactyly and complex syndactyly. Less common conditions were the triphalangic thumb, thumb in palm, proximal radioulnar synostosis and Sprengel deformity. Inheritance of and familial predisposition to those malformations was recorded in 25 cases, while 84 children presented with syndromes related to hand anomalies. Conclusions: In conclusion the incidence of hand and upper extremity malformations in Italy is lower than that registered in other countries. The retrospective nature of the study combined with the fact that some defects frequently evade pediatric hand surgeon consultations are some possible limitations of the study. However, our data confirmed that, in spite of the decrease in the birth rate in Italy, the trend of congenital hand disorders maintained a stable trend. We aim to integrate this study with a prospective analysis and to involve the institutional health authorities in other countries so as to register the correct incidence of hand and upper extremity defects.


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