scholarly journals Augmented feedback for manual wheelchair propulsion technique training in a virtual reality simulator

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Hui Yan ◽  
Philippe S. Archambault
Keyword(s):  
Virtual Reality ◽  
Motor Learning ◽  
High Frequency ◽  
Relative Frequency ◽  
Training Session ◽  
Control Group ◽  
Wheelchair Propulsion ◽  
Augmented Feedback ◽  
Effective Learning ◽  
Manual Wheelchair

Abstract Background Motor learning of appropriate manual wheelchair propulsion is critical, as incorrect technique elevates risk for upper extremity pain. Virtual reality simulators allow users to practice this complex task in a safe and realistic environment. Additionally, augmented feedback (AF) may be provided in order to optimize learning. The purpose of this study was to investigate the effects of providing AF with various delivery schedules on motor learning and transfer of this skill to over-ground propulsion. Methods Thirty healthy young adults were randomly assigned to three groups. During a virtual reality propulsion training session, the high-frequency AF group received AF in the form of knowledge of performance throughout all propulsion training; the faded AF group received this AF in a faded schedule (high relative frequency of AF early in practice, with relative frequency of AF provision diminishing throughout practice); and the control group underwent training with no AF. Propulsion assessments were performed at baseline and 48 h after practice in both virtual and real environments to measure retention and transfer, respectively. Results Compared to the control group, both feedback groups exhibited significant improvements in contact angle and push frequency in both environments after training. Small, non-significant between-group differences were also found between the high-frequency and faded feedback groups. Conclusion Virtual reality training is an effective learning intervention for acquisition, retention, and transfer of appropriate manual wheelchair propulsion technique when such training includes AF regarding propulsion biomechanics.

scholarly journals Augmented Feedback for Manual Wheelchair Propulsion Technique Training in a Virtual Reality Simulator

2020 ◽  
Author(s):  
Hui Yan ◽  
Philippe S. Archambault
Keyword(s):  
Virtual Reality ◽  
Motor Learning ◽  
High Frequency ◽  
Training Session ◽  
Control Group ◽  
Wheelchair Propulsion ◽  
Augmented Feedback ◽  
Feedback Group ◽  
Effective Learning ◽  
Manual Wheelchair

Abstract Background: Motor learning of appropriate manual wheelchair propulsion is critical, as incorrect technique elevates risk for upper extremity pain. Virtual reality simulators allow users to practice this complex task in a safe and realistic environment. Additionally, augmented feedback may be provided in order to optimize learning. The purpose of this study was to investigate the effects of providing augmented feedback with various delivery schedules on motor learning and transfer of this skill to over-ground propulsion.Methods: Thirty healthy young adults were randomly assigned to three groups. During a virtual reality propulsion training session, the high-frequency feedback group received augmented feedback throughout all propulsion training; the faded feedback group received this information in a faded schedule; and the control group underwent training with no augmented feedback. Propulsion assessments were performed at baseline and 48 hours after practice in both virtual and real environments to measure retention and transfer, respectively.Results: Compared to the control group, both feedback groups exhibited significant improvements in contact angle and push frequency in both environments after training. Small, non-significant differences were also found between the high-frequency and faded feedback groups.Conclusion: Virtual reality training is an effective learning intervention for acquisition, retention, and transfer of appropriate manual wheelchair propulsion technique when such training includes augmented feedback about propulsion biomechanics.

scholarly journals Skill acquisition of manual wheelchair propulsion: initial motor learning

2011 ◽  
Vol 1 ◽  
pp. 00093
Author(s):  
Riemer JK VEGTER ◽  
Claudine J LAMOTH ◽  
Dirkjan HEJ VEEGER ◽  
Sonja de GROOT ◽  
Lucas HV van der WOUDE
Keyword(s):  
Motor Learning ◽  
Skill Acquisition ◽  
Wheelchair Propulsion ◽  
Manual Wheelchair

scholarly journals Motor learning through a non-immersive virtual task in people with limb-girdle muscular dystrophies

2020 ◽  
Vol 30 (3) ◽  
pp. 461-471
Author(s):  
Marcelo Prumes ◽  
Talita Dias da Silva ◽  
Camila Aparecida de Oliveira Alberissi ◽  
Camila Miliani Capellini ◽  
Lilian Del Ciello de Menezes ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Motor Learning ◽  
Genetic Disorders ◽  
Muscular Dystrophies ◽  
Control Group ◽  
Immersive Virtual Reality ◽  
Speed Increase ◽  
Daily Life Activities ◽  
Timing Task ◽  
Improved Performance

Introduction: Limb-girdle muscular dystrophies (LGMDs) are neuromuscular and genetic disorders that progress with weakness and damage of the proximal muscles, developing with loss of functionality. Virtual reality environments are suggested as an effective alternative for performance of daily life activities. However, there is no evidence in the literature on the use of virtual reality in this population. Objective: Assess motor performance through a motor learning protocol in a coincident timing task. Methods: 10 participants with LGMD and 10 healthy individuals were selected and included in the study to perform a non-immersive virtual reality task divided into three phases: acquisition (20 attempts), retention (5 attempts), and transfer (5 attempts, with speed increase). Results: It is observed that the accuracy of movement improves from the beginning to the end of the acquisition (p = 0.01); however, there is a marginal difference between the groups in block A1 (p = 0.089). Regarding the variability of touches, observed by the variable error, both groups improved performance in all phases. Conclusion: Even with lower performance than the control group at the beginning of the practice, individuals with LGMD showed the potential to optimize motor function during the practice of a non-immersive virtual reality activity and were able to match their performance with the control group after a few attempts.

Virtual Reality Simulator for the Training of Lumbar Punctures

2009 ◽  
Vol 48 (05) ◽  
pp. 493-501 ◽  
Author(s):  
F. Hummel ◽  
C. Gerloff ◽  
H. Handels ◽  
M. Färber
Keyword(s):  
Virtual Reality ◽  
Medical Students ◽  
Lumbar Puncture ◽  
Degrees Of Freedom ◽  
Training Session ◽  
Needle Insertion ◽  
Control Group ◽  
Lumbar Region ◽  
Real Patient ◽  
Strongly Agree

Summary Objectives: Lumbar puncture (LP) is performed by inserting a needle into the spinal canal to extract cerebrospinal fluid for diagnostic purposes. A virtual reality (VR) lumbar puncture simulator based on real patient data has been developed and evaluated. Methods: A haptic device with six degrees of freedom is used to steer the virtual needle and to generate feedback forces that resist needle insertion and rotation. An extended haptic volume-rendering approach is applied to calculate forces. This approach combines information from segmented data and original CT data which contributes density information in unsegmented image structures. The system has been evaluated in a pilot study with medical students. Participants of two groups, a training and a control group, completed different first training protocols. User performance has been recorded during a second training session to measure the training effect. Furthermore user acceptance has been evaluated in a questionnaire using a 6-point Likert scale with eight items. Results: Forty-two medical students in two groups evaluated the system. Trained users performed better than less trained users (an average of 39% successfully completed virtual LPs compared to 30%). Findings of the questionnaire show that the simulator is very well accepted. E.g. the users agree that training with such a simulator is useful (Likert grade of 1.5 ± 0.7 with 1 = “strongly agree” and 6 = “strongly disagree”). Conclusions: Results show that the VR LP simulator gives a realistic haptic and visual impression of the needle insertion and enables new insights into the anatomy of the lumbar region. It offers a new way for increasing skills of students and young residents before applying an LP in patients.

Effect Of Variable Practice On The Motor Learning Process In Manual Wheelchair Propulsion

2016 ◽  
Vol 48 ◽  
pp. 402
Author(s):  
Marika T. Leving ◽  
Riemer J.K. Vegter ◽  
Sonja de Groot ◽  
Lucas H.V. van der Woude
Keyword(s):  
Motor Learning ◽  
Learning Process ◽  
Wheelchair Propulsion ◽  
Manual Wheelchair ◽  
Variable Practice

scholarly journals Lower Extremity Rehabilitation in Patients with Post-Stroke Sequelae through Virtual Reality Associated with Mirror Therapy

2021 ◽  
Vol 18 (5) ◽  
pp. 2654
Author(s):  
Roxana Steliana Miclaus ◽  
Nadinne Roman ◽  
Ramona Henter ◽  
Silviu Caloian
Keyword(s):  
Virtual Reality ◽  
Muscle Strength ◽  
Lower Extremity ◽  
Range Of Motion ◽  
Control Group ◽  
Mirror Therapy ◽  
Cohen’S D ◽  
Cohen's D ◽  
Experimental Group ◽  
Post Therapy

More innovative technologies are used worldwide in patient’s rehabilitation after stroke, as it represents a significant cause of disability. The majority of the studies use a single type of therapy in therapeutic protocols. We aimed to identify if the association of virtual reality (VR) therapy and mirror therapy (MT) exercises have better outcomes in lower extremity rehabilitation in post-stroke patients compared to standard physiotherapy. Fifty-nine inpatients from 76 initially identified were included in the research. One experimental group (n = 31) received VR therapy and MT, while the control group (n = 28) received standard physiotherapy. Each group performed seventy minutes of therapy per day for ten days. Statistical analysis was performed with nonparametric tests. Wilcoxon Signed-Rank test showed that both groups registered significant differences between pre-and post-therapy clinical status for the range of motion and muscle strength (p < 0.001 and Cohen’s d between 0.324 and 0.645). Motor Fugl Meyer Lower Extremity Assessment also suggested significant differences pre-and post-therapy for both groups (p < 0.05 and Cohen’s d 0.254 for the control group and 0.685 for the experimental group). Mann-Whitney results suggested that VR and MT as a therapeutic intervention have better outcomes than standard physiotherapy in range of motion (p < 0.05, Cohen’s d 0.693), muscle strength (p < 0.05, Cohen’s d 0.924), lower extremity functionality (p < 0.05, Cohen’s d 0.984) and postural balance (p < 0.05, Cohen’s d 0.936). Our research suggests that VR therapy associated with MT may successfully substitute classic physiotherapy in lower extremity rehabilitation after stroke.

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