The current study focusses on 1) transfer of a skill trained in two virtual environments with different feedback on actual performance to performance with a myoelectrically controlled hand prosthesis, 2) comparing the ability of switching with the…
ID
Bron
Aandoening
Healthy volunteers, amputees, upper limb prosthesis
Ondersteuning
Onderzoeksproduct en/of interventie
Uitkomstmaten
Primaire uitkomstmaten
Primary outcome measure per test part; <br>
<br>
Serious game: <br>
Proportional: 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. <br>
Discrete: Number of unsuccessful and successful switches, time needed to produce switch, and the type of command signal used to switch (hold-open, co-contraction, double puls).<br>
<br>
Displayed EMG signal: <br>
Proportional: The velocities of the left/right movement of a virtual platform at three different speeds (slow, intermediate and fast). The angle of the regression line through the three velocities will be determined.<br>
Discrete: Number of unsuccessful and successful switches. Time needed to produce switch. <br>
Prosthesis task: Duration of correctly re-placing a set of 6 clothespins. <br>
<br>
Primary outcome measure for pre- and posttest;<br>
Duration of correctly re-placing a set of 6 clothespins. <br>
Doel van het onderzoek
The current study focusses on 1) transfer of a skill trained in two virtual environments with different feedback on actual performance to performance with a myoelectrically controlled hand prosthesis, 2) comparing the ability of switching with the ability to proportionally control the signal after a period of training, 3) establish whether individual differences show up in switching ability.
Onderzoeksopzet
All 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 1, 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, the EMG data collected during the second task and the data collected from the prosthesis hand.
Onderzoeksproduct en/of interventie
This study is set up with a pre- posttest design with a 5 day training period in between. The participants will be divided into four groups. Depending on the group they will train with either a serious game mimicking a virtual reality setting, a displayed EMG signal on a screen, or a prosthesis simulator. All three devices are controlled using surface EMG measured on the flexor and extensor of the wrist. The fourth group will train with the serious game of the first group but this game will now be controlled using a computer keyboard and touchpad.
Per day all training sessions will take 15 minutes. During the pre- and posttest all subjects will perform a Clothespin task executed with a prosthesis simulator.
Publiek
A. Heerschop
A. Deusinglaan 1
Groningen 9713 AV
The Netherlands
+31 (0) 50 363 8902 // +31 (0) 6 44103626
a.heerschop@umcg.nl
Wetenschappelijk
A. Heerschop
A. Deusinglaan 1
Groningen 9713 AV
The Netherlands
+31 (0) 50 363 8902 // +31 (0) 6 44103626
a.heerschop@umcg.nl
Belangrijkste voorwaarden om deel te mogen nemen (Inclusiecriteria)
The 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.
Belangrijkste redenen om niet deel te kunnen nemen (Exclusiecriteria)
Subjects 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.
Opzet
Deelname
Opgevolgd door onderstaande (mogelijk meer actuele) registratie
Geen registraties gevonden.
Andere (mogelijk minder actuele) registraties in dit register
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In overige registers
Register | ID |
---|---|
NTR-new | NL6006 |
NTR-old | NTR6504 |
Ander register | ECB : 2014.02.28_1 |