Flexibility in motor actions is defined as the variability in the degrees of freedom over repetitions while keeping the performance stabilized. To be able to examine how to increase flexibility it is useful to distinguish situations where high flexibility occurs and where is does not. Therefore, we examined what a situation is where high flexibility occurs. Finding a situation where high flexibility occurs in a task that is easy to manipulate would provide us with the opportunity to address trai
Conditions
Interventions
Several different virtual balls will be presented on a plasma screen positioned in a table (Panasonic TH-50PY70F, width: 110cm, height: 62cm). The first part of the experiment consists of 40 trials in
Sponsors
University Medical Center Groningen
Eligibility
Inclusion criteria
Inclusion criteria: 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 30 years of age.
Exclusion criteria
Exclusion criteria: 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 30.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Using Optotrak we measure the trajectories of rigid bodies (see point 12 for more information). From this we derive GEV, NGEV and the ratio of these two for the 40 trials in the first part and for the 40 trials with a linear trajectory in the second part (uncontrolled manifold method). These two measures will be compared. | — |
Secondary
| Measure | Time frame |
|---|---|
| Kinematic measures, joint angles, GEV, NGEV and ratio will be computed for all trials. | — |
Contacts
Public ContactI. Tuitert
Antonius Deusinglaan 1
Outcome results
None listed