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Developing a training game for switching between grip patterns in an arm prosthesis.


- candidate number24417
- NTR NumberNTR5876
- ISRCTNISRCTN no longer applicable
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR30-mei-2016
- Secondary IDsECB 2014.02.28_1  
- Public TitleDeveloping a training game for switching between grip patterns in an arm prosthesis.
- Scientific TitleTesting a serious game developed for learning how to generate myoelectric signals used to switch between different grip patterns of a myoelectrically controlled hand prosthesis and comparing the ability of switching with the ability to proportionally control the signal.
- ACRONYM
- hypothesisIn the process of developing a serious game which can be used to determine and improve patientsí capacity of producing switch signals for myoelectrically controlled hand prostheses, a part of the test needs to be validated. The current study focusses on 1) determining whether subject are equally good at performing discrete control as they are is performing proportional control and 2) gaining insight into learning behavior of switching.
- Healt Condition(s) or Problem(s) studiedHealthy volunteers
- Inclusion criteriaThe subjects included in this study are able bodied and right handed, with normal or corrected to normal vision. Both male and female subject will be included. All subjects included will be between 18 and 50 years of age.
- Exclusion criteriaSubjects with (history of) pain or musculoskeletal impairments of the arms or upper body will not be included. The same accounts for subjects with prior experience in the use of myoelectric devices and subjects younger than 18 or older than 50.
- mec approval receivedno
- multicenter trialno
- randomisedno
- groupCrossover
- TypeSingle arm
- Studytypeintervention
- planned startdate 1-okt-2016
- planned closingdate31-mrt-2017
- Target number of participants25
- InterventionsThis study is set up with a pre- posttest design with a training period in between. During the training all subjects will train with a serious game in a virtual reality setting. This serious game is controlled using surface EMG measured on the flexor and extensor of the wrist. Per day this training will take 20 minutes. During the pre- and posttest all subjects will also perform an EMG controlled task in a virtual environment.
- Primary outcomePrimary outcome measure per test part;

The time elapsed between start of the first attempt to switch and the completion of the switch, the error between required and produced velocity and the difference between the aperture of the virtual gripper and the diameter of three differently sized virtual balls.

The above described measures will be ranked over participants per test. These ranks will be analyzed.
- Secondary outcomeSecondary outcome measures;
a. Number of unsuccessful and successful switches.
b. Duration of the plateau phase of the aperture of the gripper in the game.
c. The difference between the aperture of the virtual gripper and the diameter of three differently sized virtual balls.
The above described measures will be ranked over participants per test. These ranks will be analyzed.
- TimepointsAll subjects will be measured on 5 consecutive days (Monday-Friday). The pretest will be done at day one, the posttest on day 5. The training days will be on day 2, 3, 4 and 5.

The primary results are based on times and distances. These measures are all based on data collected from the avatar that is displayed on the screen.
- Trial web site
- statusopen: patient inclusion
- CONTACT FOR PUBLIC QUERIESMsc. A. Heerschop
- CONTACT for SCIENTIFIC QUERIESMsc. A. Heerschop
- Sponsor/Initiator University Campus Fryslan, Revalidatiefonds Nederland
- Funding
(Source(s) of Monetary or Material Support)
University Campus Fryslan, Revalidatiefonds Nederland
- Publications
- Brief summaryRecruting countries: the Netherlands
- Main changes (audit trail)
- RECORD30-mei-2016 - 28-okt-2016


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