scholarly journals Intermanual Transfer in Training With an Upper-Limb Myoelectric Prosthesis Simulator: A Mechanistic, Randomized, Pretest-Posttest Study

2013 ◽  
Vol 93 (1) ◽  
pp. 22-31 ◽  
Author(s):  
Sietske Romkema ◽  
Raoul M. Bongers ◽  
Corry K. van der Sluis
Keyword(s):  
Upper Limb ◽  
Force Control ◽  
Movement Time ◽  
Limb Amputation ◽  
Control Group ◽  
Intermanual Transfer ◽  
Initiation Time ◽  
Myoelectric Prosthesis ◽  
Upper Limb Prosthesis ◽  
Experimental Group

BackgroundIntermanual transfer may improve prosthetic handling and acceptance if used in training soon after an amputation.ObjectiveThe purpose of this study was to determine whether intermanual transfer effects can be detected after training with a myoelectric upper-limb prosthesis simulator.DesignA mechanistic, randomized, pretest-posttest design was used.ParticipantsA total of 48 right-handed participants (25 women, 23 men) who were able-bodied were randomly assigned to an experimental group or a control group.InterventionThe experimental group performed a training program of 5 days' duration using the prosthesis simulator. To determine the improvement in skill, a test was administered before, immediately after, and 6 days after training. The control group only performed the tests. Training was performed with the unaffected arm, and tests were performed with the affected arm (the affected arm simulating an amputated limb). Half of the participants were tested with the dominant arm and half with the nondominant arm.MeasurementsInitiation time was defined as the time from starting signal until start of the movement, movement time was defined as the time from the beginning of the movement until completion of the task, and force control was defined as the maximal applied force on a deformable object.ResultsThe movement time decreased significantly more in the experimental group (F2,92=7.42, P=.001, ηG2=.028) when compared with the control group. This finding is indicative of faster handling of the prosthesis. No statistically significant differences were found between groups with regard to initiation time and force control. We did not find a difference in intermanual transfer between the dominant and nondominant arms.LimitationsThe training utilized participants who were able-bodied in a laboratory setting and focused only on transradial amputations.ConclusionsIntermanual transfer was present in the affected arm after training the unaffected arm with a myoelectric prosthesis simulator, and this effect did not depend on laterality. This effect may improve rehabilitation of patients with an upper-limb amputation.

scholarly journals Real-Time EMG Based Pattern Recognition Control for Hand Prostheses: A Review on Existing Methods, Challenges and Future Implementation

Sensors ◽  
2019 ◽  
Vol 19 (20) ◽  
pp. 4596 ◽  
Author(s):  
Nawadita Parajuli ◽  
Neethu Sreenivasan ◽  
Paolo Bifulco ◽  
Mario Cesarelli ◽  
Sergio Savino ◽  
...  
Keyword(s):  
Pattern Recognition ◽  
Real Time ◽  
Upper Limb ◽  
Real World ◽  
Healthcare Sector ◽  
Limb Amputation ◽  
Future Research ◽  
Myoelectric Prosthesis ◽  
Upper Limb Prosthesis ◽  
Maximum Utility

Upper limb amputation is a condition that significantly restricts the amputees from performing their daily activities. The myoelectric prosthesis, using signals from residual stump muscles, is aimed at restoring the function of such lost limbs seamlessly. Unfortunately, the acquisition and use of such myosignals are cumbersome and complicated. Furthermore, once acquired, it usually requires heavy computational power to turn it into a user control signal. Its transition to a practical prosthesis solution is still being challenged by various factors particularly those related to the fact that each amputee has different mobility, muscle contraction forces, limb positional variations and electrode placements. Thus, a solution that can adapt or otherwise tailor itself to each individual is required for maximum utility across amputees. Modified machine learning schemes for pattern recognition have the potential to significantly reduce the factors (movement of users and contraction of the muscle) affecting the traditional electromyography (EMG)-pattern recognition methods. Although recent developments of intelligent pattern recognition techniques could discriminate multiple degrees of freedom with high-level accuracy, their efficiency level was less accessible and revealed in real-world (amputee) applications. This review paper examined the suitability of upper limb prosthesis (ULP) inventions in the healthcare sector from their technical control perspective. More focus was given to the review of real-world applications and the use of pattern recognition control on amputees. We first reviewed the overall structure of pattern recognition schemes for myo-control prosthetic systems and then discussed their real-time use on amputee upper limbs. Finally, we concluded the paper with a discussion of the existing challenges and future research recommendations.

scholarly journals Intermanual Transfer Effect in Young Children After Training in a Complex Skill: Mechanistic, Pseudorandomized, Pretest-Posttest Study

2015 ◽  
Vol 95 (5) ◽  
pp. 730-739 ◽  
Author(s):  
Sietske Romkema ◽  
Raoul M. Bongers ◽  
Corry K. van der Sluis
Keyword(s):  
Retention Test ◽  
Movement Time ◽  
Transfer Effect ◽  
The Body ◽  
The Other ◽  
Control Group ◽  
Intermanual Transfer ◽  
Dominant Hand ◽  
Study Objective ◽  
Experimental Group

BackgroundIntermanual transfer implies that motor skills learned on one side of the body transfer to the untrained side. This effect was previously noted in adults practicing with a prosthesis simulator.ObjectiveThe study objective was to determine whether intermanual transfer is present in children practicing prosthetic handling.DesignA mechanistic, pseudorandomized, pretest-posttest design was used.SettingThe study was conducted in a primary school in the Netherlands.ParticipantsThe participants were children who were able-bodied (N=48; 25 boys, 23 girls; mean age=5.1 years) and randomly assigned to an experimental group or a control group.InterventionThe experimental group performed 5 training sessions using a prosthesis simulator on the training arm. Before (pretest), immediately after (posttest), and 6 days after (retention test) the training program, their ability to handle the prosthesis with the contralateral (test) arm was measured. The control group only performed the tests. Half of the children performed the tests with the dominant hand, and the other half performed the tests with the nondominant hand.MeasurementsDuring the tests, movement time and control of force were measured.ResultsAn interaction effect of group by test was found for movement time. Post hoc tests revealed significant improvement in the experimental group between the posttest and the retention test. No force control effect was found.LimitationsOnly children who were able-bodied were included. Measurements should have been masked and obtained without tester interference. The fact that 4 children whose results were slower than the mean result discontinued training may have biased the findings.ConclusionsThe intermanual transfer effect was present in 5-year-old children undergoing training in prosthetic handling. After training of one hand, children's movement times for the other, untrained hand improved. This finding may be helpful for training children who are novice users of a prosthesis.

scholarly journals Effect of Additional Rehabilitation After Botulinum Toxin-A on Upper Limb Activity in Chronic Stroke

Stroke ◽  
2020 ◽  
Vol 51 (2) ◽  
pp. 556-562
Author(s):  
Natasha A. Lannin ◽  
Louise Ada ◽  
Coralie English ◽  
Julie Ratcliffe ◽  
Steven G. Faux ◽  
...  
Keyword(s):  
Botulinum Toxin ◽  
Upper Limb ◽  
Goal Attainment ◽  
Botulinum Toxin A ◽  
Chronic Stroke ◽  
Mean Difference ◽  
Control Group ◽  
Toxin A ◽  
Upper Limb Rehabilitation ◽  
Experimental Group

Background and Purpose— The aim of this trial was to determine the effect of additional upper limb rehabilitation following botulinum toxin-A for upper limb activity in chronic stroke. Methods— We conducted a multicenter phase III randomized trial with concealed allocation, blinded measurement, and intention-to-treat analysis. One hundred forty stroke survivors who were scheduled to receive botulinum toxin-A in any muscle(s) that cross the wrist because of moderate to severe spasticity after a stroke >3 months ago, who had completed formal rehabilitation and had no significant cognitive impairment. Experimental group received botulinum toxin-A plus evidence-based movement training while the control group received botulinum toxin-A plus a handout of exercises. Primary outcomes were goal attainment (Goal Attainment Scaling) and upper limb activity (Box and Block Test) at 3 months (end of intervention). Secondary outcomes were spasticity, range of motion, strength, pain, burden of care, and health-related quality of life. Results— In terms of goal attainment, the experimental group scored the same (mean difference, 2 T-score [95% CI, −2 to 7]) as the control group on the Goal Attainment Scale. In terms of upper limb activity, by 3 months the experimental group moved blocks at the same speed (mean difference, 0.00 blocks/s [95% CI, −0.02 to 0.01]) as the control group on the Box and Block Test. There were no differences between groups on any secondary outcome except strength, in favor of the experimental group (mean difference, 1.4 kg [95% CI, 0.2–2.7]). Conclusions— Findings suggest that additional intensive upper limb rehabilitation following botulinum toxin-A in chronic stroke survivors with a disabled upper limb is not effective. Registration— URL: https://www.clinicaltrials.gov . Unique identifier: ACTRN12615000616572.

Sensor-based technology for upper limb rehabilitation in patients with multiple sclerosis: A randomized controlled trial

2020 ◽  
Vol 38 (4) ◽  
pp. 333-341
Author(s):  
Marco Tramontano ◽  
Giovanni Morone ◽  
Sara De Angelis ◽  
Laura Casagrande Conti ◽  
Giovanni Galeoto ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Upper Limb ◽  
Controlled Trial ◽  
Control Group ◽  
Hand Rehabilitation ◽  
Upper Limb Rehabilitation ◽  
Rehabilitation Programs ◽  
Scale Scores ◽  
Limb Rehabilitation ◽  
Experimental Group

Background: Sensor-based technological therapy devices may be good candidates for neuromotor rehabilitation of people with Multiple Sclerosis (MS), especially for treating upper extremities function limitations. The sensor-based device rehabilitation is characterized by interactive therapy games with audio-visual feedback that allows training the movement of shoulders, elbows, and wrist, measuring the strength and the active range of motion of upper limb, registering data in an electronic database to quantitatively monitoring measures and therapy progress. Objective: This study aimed to investigate the effects of sensor-based motor rehabilitation in add-on to the conventional neurorehabilitation, on increasing the upper limb functions of patients with MS. Methods: Thirty patients were enrolled in the study and randomly assigned to the experimental group and the control group. The training consisting of twelve sessions of upper limb training was compared with twelve sessions of upper limb sensory-motor training, without robotic support. Both rehabilitation programs were performed for 40 minutes three times a week, for 4 weeks, in addition to conventional therapy. All patients were evaluated at the baseline (T0) and after 4 weeks of training (T1). Results: The within-subject analysis showed a statistically significant improvement in both groups, in the Modified Barthel Index and in the Rivermead Mobility Index scores and a significant improvement in Multiple Sclerosis Quality of Life-54 in the experimental. The analysis of effectiveness revealed that, compared with baseline (T0), the improvement percentage in all clinical scale scores was greater in the experimental group than the control group. Conclusions: Proposed training provides an intensive and functional-oriented rehabilitation that objectively evaluates achieved progress through exercises. Therefore, it can represent a good complementary strategy for hand rehabilitation in MS patients.

scholarly journals Leap motion controlled video game-based therapy for upper limb rehabilitation in patients with Parkinson’s disease: a feasibility study

2019 ◽  
Vol 16 (1) ◽  
Author(s):  
Pilar Fernández-González ◽  
María Carratalá-Tejada ◽  
Esther Monge-Pereira ◽  
Susana Collado-Vázquez ◽  
Patricia Sánchez-Herrera Baeza ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Feasibility Study ◽  
Upper Limb ◽  
Serious Games ◽  
Post Treatment ◽  
Control Group ◽  
Leap Motion ◽  
Affected Side ◽  
Experimental Group

Abstract Background Non-immersive video games are currently being used as technological rehabilitation tools for individuals with Parkinson’s disease (PD). The aim of this feasibility study was to evaluate the effectiveness of the Leap Motion Controller® (LMC) system used with serious games designed for the upper limb (UL), as well as the levels of satisfaction and compliance among patients in mild-to-moderate stages of the disease. Methods A non-probabilistic sampling of non-consecutive cases was performed. 23 PD patients, in stages II-IV of the Hoehn & Yahr scale, were randomized into two groups: an experimental group (n = 12) who received treatment based on serious games designed by the research team using the LMC system for the UL, and a control group (n = 11) who received a specific intervention for the UL. Grip muscle strength, coordination, speed of movements, fine and gross UL dexterity, as well as satisfaction and compliance, were assessed in both groups pre-treatment and post-treatment. Results Within the experimental group, significant improvements were observed in all post-treatment assessments, except for Box and Blocks test for the less affected side. Clinical improvements were observed for all assessments in the control group. Statistical intergroup analysis showed significant improvements in coordination, speed of movements and fine motor dexterity scores on the more affected side of patients in the experimental group. Conclusions The LMC system and the serious games designed may be a feasible rehabilitation tool for the improvement of coordination, speed of movements and fine UL dexterity in PD patients. Further studies are needed to confirm these preliminary findings.

Adjustment and Satisfaction with Prosthesis Among People after Upper Limb Amputation in Slovenia

2020 ◽  
Vol 22 (2) ◽  
pp. 85-93
Author(s):  
Klara Šosterič ◽  
Helena Burger ◽  
Gaj Vidmar
Keyword(s):  
Upper Limb ◽  
Limb Amputation ◽  
Cross Sectional ◽  
Upper Limb Amputation ◽  
Upper Limb Prosthesis ◽  
Activity Restrictions ◽  
Univariate Analyses ◽  
Limb Prosthesis ◽  
Large Representative ◽  
Representative Samples

Background. There is a lack of studies on adjustment to upper limb prosthesis with large representative samples that would compare different prosthesis types and use standardised outcome measures. Hence, we wanted to assess satisfaction with, and level of adjustment to, an upper-limb prosthesis among people after an upper limb amputation in our country. Material and methods. We conducted a cross-sectional descriptive study. The TAPES-R questionnaire was mailed to 431 patients identified from electronic health records at national specialist outpatient clinics for rehabilitation of people after upper limb amputation. Results. 191 patients (44%) responded and were subsequently ascertained to be a representative sample of the population of upper limb amputees in our country. Univariate analyses and multiple regression models indicated that, on average, overall satisfaction is lower among those who have received their current prosthesis more recently, women might be more satisfied with prosthesis than men, above-elbow amputees experience more activity restrictions than those with amputation at a lower level, patients with amputated fingers or palm are more satisfied with the prosthesis than others, and so are those who had amputation following an accident as compared to other reasons. Conclusion. We reliably identified some systematic factors, but it is individual factors and experience that largely determine adjustment to and satisfaction with a prosthesis following an upper limb amputation.

scholarly journals Practice effects on fast and accurate spatially constrained movements

2014 ◽  
Vol 15 (1) ◽  
Author(s):  
Carla Ferro Pereira ◽  
Inara Marques ◽  
Victor Hugo Alves Okazaki
Keyword(s):  
Movement Time ◽  
Control Group ◽  
Feedback Information ◽  
Deceleration Phase ◽  
Mouse Cursor ◽  
Post Test ◽  
Practice Trials ◽  
Improved Performance ◽  
And Control ◽  
Experimental Group

AbstractPurpose. The effects of practice were analyzed in the control of fast and accurate spatially constrained movements. Methods. Twenty men (20-26 years old) evenly divided into an experimental and control group were analyzed in three time periods: pre-test, post-test, and retention. Discrete Aiming Task ver. 2.0 software simulated Fitts’ task (1954) and provided kinematic analysis of mouse cursor movements (displacement, velocity, and acceleration). The task consisted of using the mouse to click on two parallel targets as fast and accurately as possible. Four target widths (W = 2.0, 1.0, 0.5, and 2.5 inches) and three distances between the targets (D = 2.0, 4.0, and 8.0 inches) were used to provide indexes of difficulty (ID) from 1 to 6 bits. The experimental group performed 108 practice trials (three blocks of 36 trials on different days) while the control group had no practice. Results. Movement time (MT) decreased in the experimental group largely due in part to a reduction of time used for feedback. It is suggested that the improvement in performance as a function of practice occurred through the interdependence of programming and the feedback process. As the task was practiced, there was decreased need for feedback due to better pre-programming of the primary submovement and the improved use of sensorial feedback information. This strategy and a lengthened deceleration phase can help explain the paradigm of fast and accurate movement as a result of practice. Conclusions. Despite the improved performance changes as a consequence of practice, Fitts’ Law proved to be robust enough to predict MT as a function of ID.

scholarly journals The Effect of High-Frequency Repetitive Transcranial Magnetic Stimulation on Functional Indices of Affected Upper Limb in Patients with Subacute Stroke

2018 ◽  
Author(s):  
F Moslemi Haghighi ◽  
A Kordi Yoosefinejad ◽  
M Razeghi ◽  
A H Shariat ◽  
Z Bagheri ◽  
...  
Keyword(s):  
Grip Strength ◽  
Upper Limb ◽  
High Frequency ◽  
Magnetic Stimulation ◽  
Repetitive Transcranial Magnetic Stimulation ◽  
Pinch Strength ◽  
Control Group ◽  
Subacute Phase ◽  
Functional Indices ◽  
Experimental Group

Background: Repetitive transcranial magnetic stimulation (rTMS) is a novel technique that may improve recovery in patients with stoke, but the role of rTMS as an applied and practical treatment modality for stroke rehabilitation has not been established yet.Objective: This study was conducted to determine the effects of a rehabilitation program (RP) in conjunction with rTMS on functional indices of the paretic upper limb in the subacute phase of stroke.Material and Methods: Twenty patients in the subacute phase of stroke were randomly assigned into two groups: The high frequency rTMS (HF-rTMS) in conjunction with RP (experimental group), and the RP group (control group). The experimental group received 10 sessions of 20 Hz rTMS on the affected primary motor cortex and the other group received 10 sessions of RP. In experimental group, RP for the paretic hand was conducted following rTMS session. Box and block test (BBT), Fugl-Meyer Motor Assessment for upper limb (FMA-UL), grip strength and pinch strength were used to assess motor function before the first session and after  the last session of treatment.Results: Significant improvement in BBT, FMA-UL, grip strength and pinch strength was observed in both groups. Improvement of BBT and grip strength was significantly greater in the experimental group rather than the control group (p<0.05). FMA-UL score and the pinch strength were greater in the experimental group, although the differences were not statistically significant. Conclusion: HF-rTMS in conjunction with RP is effective to improve the function of upper limb. It seems HF-rTMS is a novel feasible and safe technique for hemiparesis patients in the subacute phase of stroke.

scholarly journals Application of MET Technique after Upper Limb Dysfunction after Breast Cancer Surgery

2021 ◽  
Vol 4 (2) ◽  
pp. 8
Author(s):  
Yanan Jin ◽  
Jingxin Wang ◽  
Huayun Liu ◽  
Jiamei Zhen
Keyword(s):  
Breast Cancer ◽  
Upper Limb ◽  
Functional Recovery ◽  
Cancer Surgery ◽  
Breast Cancer Surgery ◽  
Control Group ◽  
Muscle Energy ◽  
Upper Limb Dysfunction ◽  
Experimental Group ◽  
Early Functional Recovery

Object: Explore the application and actual effect of MET (Muscle Energy) technology after breast cancer surgery with upper limb dysfunction. Methods: Taking 40 female breast cancer patients who underwent surgical treatment in our hospital from September 2017 to June 2019 as the research objects, all of them successfully completed modified radical mastectomy for breast cancer. According to different nursing methods, the patients were randomly divided into two groups. The experiment There were 20 cases in each group and the control group. The control group was given routine functional recovery exercise intervention after the operation, and the experimental group added MET technology to the base of the control group. One month after the operation, the functional recovery of the affected limbs of the two groups of patients was effectively assessed. The upper limb dysfunction of the two groups was compared by statistical methods, and the shoulder joint range of motion (ROM) was used for performance. Results: Through early functional recovery training and MET technology, 19 cases of ROM in the experimental group showed compliance (95%), compared with only 14 cases (70%) in the control group. The difference in upper limb dysfunction between the two groups is very obvious with statistical significance (P<0.05). Conclusions: Early functional recovery training combined with muscle energy technology can promote the recovery of upper limb dysfunction after breast cancer surgery faster and better, which is conducive to the recovery of patients as soon as possible and improve the quality of life.

scholarly journals Myoelectric Prosthesis Users and Non-Disabled Individuals Wearing A Simulated Prosthesis Exhibit Similar Compensatory Movement Strategies

2020 ◽  
Author(s):  
Heather E. Williams ◽  
Craig S. Chapman ◽  
Patrick M. Pilarski ◽  
Albert H. Vette ◽  
Jacqueline S. Hebert
Keyword(s):  
Upper Limb ◽  
Performance Metrics ◽  
Upper Body ◽  
Kinematic Data ◽  
Myoelectric Prosthesis ◽  
Myoelectric Prostheses ◽  
Compensatory Movement ◽  
Upper Limb Prosthesis ◽  
Movement Strategies ◽  
Shoulder Motion

Abstract Background: Research studies on upper limb prosthesis function often rely on the use of simulated myoelectric prostheses (attached to and operated by individuals with intact limbs), primarily to increase participant sample size. However, it is not known if these devices elicit the same movement strategies as myoelectric prostheses (operated by individuals with amputation). The objective of this study was to compare compensatory movement strategies, measured by hand and upper body kinematics, of twelve non-disabled individuals wearing a simulated prosthesis to those of three individuals with transradial amputation using their custom-fitted myoelectric devices. Methods: Motion capture was used to obtain kinematic data as participants performed a standardized functional task. Performance metrics, end effector movements and angular kinematics were analyzed. Results: Results show that participants using a simulated or actual myoelectric prosthesis had similar differences in phase durations, hand velocities, hand trajectories, movement units, grip aperture plateaus, and trunk and shoulder motion when compared to normative behaviour. Conclusions: This study suggests that the use of a simulated device in upper limb research offers a reasonable approximation of compensatory movement strategies employed by a novice to mid-skilled transradial myoelectric prosthesis user.

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