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The influence of uncertainty on flexibility in interceptive movements.


- candidate number24363
- NTR NumberNTR5861
- ISRCTNISRCTN no longer applicable
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR18-mei-2016
- Secondary IDsECB 2016.04.25_1 
- Public TitleThe influence of uncertainty on flexibility in interceptive movements.
- Scientific TitleThe influence of uncertainty of ball trajectories on flexibility of certain ball trajectories interceptive movements.
- ACRONYM
- hypothesis
- Healt Condition(s) or Problem(s) studiedPhysical activity
- 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 30 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 30.
- mec approval receivedno
- multicenter trialno
- randomisedyes
- masking/blindingNone
- controlNot applicable
- groupCrossover
- TypeSingle arm
- Studytypeobservational
- planned startdate 19-mei-2016
- planned closingdate1-okt-2016
- Target number of participants30
- InterventionsSeveral 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 intercepting a target under an angle of 26.5 degrees (half of the participants -26.5 degrees) with a movement distance of 30cm. The second part consists of 120 trials where all ball trajectories start at approximately 26.5 degrees but at some point 40 trials bend rightwards, 40 trials bend leftwards and 40 trials follow the original linear trajectory.
- Primary outcomeUsing 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 outcomeKinematic measures, joint angles, GEV, NGEV and ratio will be computed for all trials.
- TimepointsThe total duration of a session will be approximately 1.5 hour.
- Trial web site
- statusopen: patient inclusion
- CONTACT FOR PUBLIC QUERIESMsc. I. Tuitert
- CONTACT for SCIENTIFIC QUERIESMsc. I. Tuitert
- Sponsor/Initiator University Medical Center Groningen (UMCG)
- Funding
(Source(s) of Monetary or Material Support)
A*MIDEX grant (n°ANR-11-IDEX-0001-02) , University Medical Center Groningen (UMCG)
- Publications
- Brief summary
- Main changes (audit trail)
- RECORD18-mei-2016 - 2-jul-2016


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