neurologische aandoeningen hemiplegic spastic hemiparetic cerebral palsy
Conditions
Interventions
None listed
Sponsors
Vrije Universiteit
Eligibility
Age
2 Years to 17 Years
Inclusion criteria
Inclusion criteria: -Clinical diagnosis of spastic unilateral cerebral palsy (GMFCS level 1-2 (Palisano, 2007)) according to the medical records with damage on either the right or the hemisphere, respectively -age between 8 and 18 years. -the ability to walk independent without walking aid other than insoles and/or orthoses.
Exclusion criteria
Exclusion criteria: -visual neglect or any other kind of vision problems which can not be corrected by glasses (as reported by parents) -Additional disorders (other than CP) concerning the musculoskeletal system -Parents/guardians and/or child who do not understand Dutch or English well enough to take part in this project
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Visual search of the participants -Search rate; the mean number of useful visual fixations and the mean fixation duration per trial. A fixation is defined as the period of time when the point of gaze remains stationary within 1.5 degrees of movement tolerance for a period equal to, or greater than 120ms or 6 video frames (Williams et al., 1994). We expect the following useful visual fixation points; ball, interception area (see lab setup). -Percentage viewing time; the amount of time participants spends on fixating to the various areas (ball, begin point, interception point) | — |
Secondary
| Measure | Time frame |
|---|---|
| Movement of the participants Reaction time; The time between the first movement of the ball and the first movement of the participants (more than 5 cm towards the conveyor belt) Average walking velocities; The average walking velocity is calculated from the displacement of the potentiometer wires from the moment the ball starts to move till the moment when the ball crosses the interception area. This parameter is used to calculate the deviation of the BA. Deviation of the BA (dCBA); The BA is the angle between the ball, the head of the participant and the interception area, using the head of the participant as the angle centre. The velocity profile of the ball will be controlled by the conveyor belt and known by the experimenter. A constant BA strategy corresponds to the initial BA maintaining through the entire trajectory (Chardenon et al., 2002; Lenoir et al., 1999; Chohan et al. 2006). Therefore the dCBA will be calculated as the sum of the absolute differences in values between the initial BA and the BA calculated for each following sample. As duration of the trials varies with ball velocity, the dCBA will be normalized by dividing the absolute differences by the number of samples. Ball movement Successful grasp; When the ball is grasped within the defined interception area (measured by video image) Location of the brain damage MRI scans are part of a regular evaluation of children with CP (CBO richtlijn behandeling spastische cerebrale parese 2007). Therefore, MRI scans will be available for most of the participating children with CP. An experienced child neurologist (RJV) will score the pattern of brain damage on the MRI scan. This can serve as a control measure to assess that the lesion is indeed present in the left or right hemisphere. | — |
Countries
Netherlands
Outcome results
None listed