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Influence of Gravity on Dexterity, Hand-eye Coordination and Perception of Orientation and Distances (DEXTER0g)

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ClinicalTrials.gov Identifier: NCT02563249
Recruitment Status : Unknown
Verified September 2015 by University Hospital, Caen.
Recruitment status was:  Recruiting
First Posted : September 30, 2015
Last Update Posted : September 30, 2015
Sponsor:
Information provided by (Responsible Party):
University Hospital, Caen

Brief Summary:
If investigators know that the anticipatory mechanisms involved in precision grip take into account the gravity, however it is unclear how they adapt to changes in the gravitational level. The objectives of this study are to study and model the movement control and the mechanisms underlying learning and adapting to the condition of weightlessness. Specifically, i) investigators will determine if a change in the level of gravity is taken into account when controlling grip force and ii) investigators will examine the effects of gravity change on hand-eye coordination.

Condition or disease Intervention/treatment Phase
Healthy Volunteers Other: Parabolic flight Other: movements of the upper limb, the gripping force, muscle activity and eye-cephalic subject movement measurements Not Applicable

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 90 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
Study Start Date : May 2012
Estimated Primary Completion Date : December 2015

Arm Intervention/treatment
Dexterity, Coordination,Perception measurements
Dexterity, Hand-eye Coordination and Perception of Orientation and Distances
Other: Parabolic flight
Other: movements of the upper limb, the gripping force, muscle activity and eye-cephalic subject movement measurements



Primary Outcome Measures :
  1. Gravity induced changes in grip strength (newton) exerted between the fingers measured with strain gauges [ Time Frame: baseline ]
  2. Gravity induced changes in oculo-manual coordination measured by the latency (ms) of anticipatory eye movement measurement with videooculography [ Time Frame: baseline ]


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Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Healthy volunteers, male or female
  • 18 to 65 years
  • Affiliated with a Social Security plan or holder of a European Health Insurance Card (EHIC - European Health Insurance Card - EHIC).
  • Having an aeronautical medical certificate of fitness for flight personnel unprofessional functions in civil aviation.
  • Agreeing to participate in the study
  • Having given informed consent

Exclusion Criteria:

  • person not affiliated to a Social Security Inssurance,
  • person who participated in a clinical trial within the trial below the exclusion period,
  • person with a medical history or any acute or chronic condition that can affect the test results, or by running a risk on during the protocol, especially topics: past or present history of neurological disease, rheumatologic or otologic (hearing or equilibration) OR person with a corrected visual acuity of less than 5 / 10th.
  • pregnant women.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02563249


Locations
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France
Umr Ucbn/Inserm U1075 Comete Recruiting
Caen CEDEX, Basse-Normandie, France, 14032
Contact: Pierre Denise, MD PhD    332068214    pierre.denise@unicaen.fr   
Sponsors and Collaborators
University Hospital, Caen
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Responsible Party: University Hospital, Caen
ClinicalTrials.gov Identifier: NCT02563249    
Other Study ID Numbers: 12-026
First Posted: September 30, 2015    Key Record Dates
Last Update Posted: September 30, 2015
Last Verified: September 2015