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

Healthy Volunteers Clinical Trial

— DEXTER0g  

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT02563249
• Other study ID #: 12-026
• Status: Recruiting
• Phase: N/A
• First received: July 23, 2015
• Last updated: September 28, 2015
• Start date: May 2012

Study information

• Verified date: September 2015
• Source: University Hospital, Caen
• Contact: n/a
• Is FDA regulated: No
• Health authority: France: Agence Nationale de Sécurité du Médicament et des produits de santé
• Study type: Interventional

Clinical Trial 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.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 90
• Est. primary completion date: December 2015
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Both
• Age group: 18 Years to 65 Years

Eligibility

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.

Study Design

Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Basic Science

Related Conditions & MeSH terms

• Healthy Volunteers

Intervention

Other:
• Parabolic flight

• movements of the upper limb, the gripping force, muscle activity and eye-cephalic subject movement measurements

Locations

Country	Name	City	State
France	Umr Ucbn/Inserm U1075 Comete	Caen CEDEX	Basse-Normandie

Sponsors (1)

Lead Sponsor	Collaborator
University Hospital, Caen

Country where clinical trial is conducted

France, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Gravity induced changes in grip strength (newton) exerted between the fingers measured with strain gauges		baseline	No
Primary	Gravity induced changes in oculo-manual coordination measured by the latency (ms) of anticipatory eye movement measurement with videooculography		baseline	No