To obtain more insight into how the skill level of an upper-limb myoelectric prosthesis user is composed, current study aimed to (1) portray prosthetic handling at different levels description, (2) relate results clinical kinematic measures, and (3) identify specific parameters in these measures that characterize a user. Six experienced transradial users performed test (Southampton Hand Assessment Procedure [SHAP]) two grasping tasks. Kinematic were end point kinematics, joint angles, grasp...

Return to work (RTW) in patients with hand disorders and injuries is determined by several determinants not directly related the physical situation. Besides biomedical determinants, work-related psychosocial may influence RTW as well. This study conducted investigate of these potential on injuries.Included 91 who were operatively treated for a disorder or injury, employed prior surgery. Patients answered questionnaires aforementioned categories. Potential significantly univariate analysis...

Reported birth prevalences of congenital limb defects (CLD) vary between countries: from 13/10,000 in Finland for the period 1964–1977 to 30.4/10,000 births Scotland 1964–1968. Epidemiological studies permit timely detection trends CLD and associations with other defects. The aim this study is describe prevalence northern Netherlands. In a population-based, epidemiological we investigated 1981–2010. Data were collected by European Surveillance Congenital Anomalies Netherlands (EUROCAT-NNL)....

Training increases the functional use of an upper limb prosthesis, but little is known about how people learn to their prosthesis. The aim this study was describe changes in performance with myoelectric prosthesis during practice. results provide a basis develop evidence-based training program. Thirty-one able-bodied participants took part experiment as well thirty-one age- and gender-matched controls. Participants experimental condition, randomly assigned one four groups, practiced...

To describe users' and therapists' opinions on multi-function myoelectric upper limb prostheses with conventional control pattern recognition control.Qualitative interview study.Two rehabilitation institutions in the Netherlands one Austria.The study cohort consisted of 15 prosthesis users (13 males, mean age: 43.7 years, average experience prosthesis: 3.15 years) seven therapists (one male, 44.1 prostheses: 6.6 years). Four these therapist had control.This semi-structured interviews. The...

HoMEcare aRm rehabiLItatioN (MERLIN) is an unactuated version of the robotic device ArmAssist combined with a telecare platform. Stroke patients are able to train upper limb function using serious games at home. The aim this study investigate effect MERLIN training on unilateral paresis in chronic phase stroke (> 6 months post stroke).Patients trained task specific for three hours per week during six weeks device. Progress was monitored and game settings were tailored through...

Abstract Background Upper limb prosthetics with multiple degrees of freedom (DoFs) are still mostly operated through the clinical standard Direct Control scheme. Machine learning control, on other hand, allows controlling DoFs although it requires separable and consistent electromyogram (EMG) patterns. Whereas user training can improve EMG pattern quality, conventional methods might limit potential. Training serious games lead to higher quality patterns better functional outcomes. In this...

Objective To evaluate the differences in mortality and longterm outcome between young elderly patients with multiple injuries. Design: Retrospective descriptive. Materials Methods Over a 5-year period (from January 1985 to 1990) all consecutive (20 29 years, n = 167) (greater than or equal to60 121) an Abbreviated Injury Scale score/Injury Severity Score of greater to16 treated at University Hospital Groningen (the Netherlands) were reviewed. Age, sex, mechanisms injury, score, Score,...

The i-LIMB hand is a novel upper limb myoelectric prosthetic with several joints in the fingers and thumb.This study aimed to determine whether this new device had more functionality than conventional only single joint between thumb two fingers.Therefore, 45-year-old man wrist disarticulation used widely Dynamic Mode Control (DMC plus hand) test procedure that covered all functional levels of International Classification Function (ICF).Functional outcomes seemed be lower or equal DMC...

Quantitative data on the mechanical performance of upper-limb prostheses are very important in development and selection.The primary goal this study was to objectively evaluate adultsize voluntary opening (VO) prosthetic terminal devices select best tested device.A second see whether VO have improved last two decades.Nine (four hooks five hands) were quantitatively (Hosmer model 5XA hook, Hosmer Sierra 2 Load RSL Steeper Carbon Gripper, Otto Bock 10A60 Becker Imperial hand, Soft hand).We...

The aim of this study is to establish the effect task-oriented video gaming on using a myoelectric prosthesis in basic activity daily life (ADL). Forty-one able-bodied right-handed participants were randomly assigned one four groups. In three these groups trained control game myosignals flexors and extensors wrist: Adaptive Catching group needed catch falling objects by opening closing grabber received ADL-relevant feedback during performance. Free used same game, but without augmented...

Video games that aim to improve myoelectric control (myogames) are gaining popularity and often part of the rehabilitation process following an upper limb amputation. However, direct evidence for their effect on prosthetic skill is limited. This study aimed determine whether how myogaming improves EMG performance improvements transfer a prosthesis-simulator task. Able-bodied right-handed participants (N = 28) were randomly assigned 1 2 groups. The intervention group was trained video game...

OPINION article Front. Neurosci., 06 January 2016Sec. Neural Technology Volume 9 - 2015 | https://doi.org/10.3389/fnins.2015.00496

Little is known about action-perception learning processes underlying prosthetic skills in body-powered prosthesis users. Body-powered prostheses are controlled through a harness connected by cable that might provide for limited proprioceptive feedback. This study aims to test transfer of training basic tasks functional and describe the changes over time kinematics novice Thirty able-bodied participants 17 controls participated study, using simulator. Participants group were divided four...

Objective Considering the high rejection rates of upper limb prostheses, it is important to determine which prosthesis fits best needs each user. The introduction multi-grip prostheses hands (MHP), have functional advantages but are also more expensive, has made selection even harder. Therefore, we aimed identify user opinions on factors determining choice persons with major unilateral defects in order facilitate a optimal fit between and prosthesis. Methods A qualitative meta-synthesis...

Human-machine interfaces have not yet advanced to enable intuitive control of multiple degrees freedom as offered by modern myoelectric prosthetic hands. Pattern Recognition (PR) has been proposed make human-machine in hands more intuitive, but it requires the user generate high-quality, i.e., consistent and separable, electromyogram (EMG) patterns. To such patterns, training is required shown promising results. However, how different levels feedback affect effectivity differently,...

To measure the functional outcome we analyzed 723 consecutive patients with multiple injuries (Abbreviated Injury Scale (AIS)/Injury Severity Score (ISS) > or = 16, mean ISS 30.1) treated at University Hospital Groningen, Netherlands, between 1985 and 1989. Age, sex, type of accident, AIS/ISS, discharge destination, length hospital stay (measured by Glasgow Outcome Scale) are described. The were young (mean age 33.4 years) 186 died (25.7%) mainly because severe head injuries. Half survivors...

Background Youngsters with unilateral congenital below-elbow deficiency (UCBED) seem to function well or without a prosthesis. Reasons for rejecting prostheses have been reported earlier, but unfortunately not those of the children themselves. Furthermore, reasons acceptance are underexplored in literature. Objectives To investigate opinions and early late adolescents UCBED, their parents healthcare professionals, concerning (1) wear (2) about rehabilitation care. Methods During one week...

BACKGROUND In this retrospective study, we analyzed the outcomes of different types treatment fingertip injuries and compared them after a mean follow-up 4.5 years. METHODS A total 53 patients (59 injuries) were included in study. The classified according to Allen classification. categorized into three groups based on treatment: reconstructive group, bone-shortening conservative group. As objective assessments, strength, sensibility, goniometry measured; as subjective cold intolerance, nail...

The availability of various multiarticulated prosthetic hands makes determining differences in functionality between these relevant. current study asked whether the increased with time use and grip force robustness improved. A 45-year-old man wrist disarticulation used i-LIMB Pulse a series tests covering all functional levels as described framework International Classification Functioning, Disability Health. Using for 1 yr improved Southampton Hand Assessment Procedure function scores....