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

Caen University Hospital

Status: Unknown

Conditions: Healthy Volunteers

Treatments: Other: movements of the upper limb, the gripping force, muscle activity and eye-cephalic subject movement measurements; Other: Parabolic flight

Study type: Interventional

Funder types: Other

Identifiers

NCT02563249

12-026

Details and patient eligibility

About

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.

Enrollment: 90 estimated patients

Sex: All

Ages: 18 to 65 years old

Volunteers: Accepts Healthy Volunteers

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.

Trial design

Primary purpose: Basic Science

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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90 participants in 1 patient group

Dexterity, Coordination,Perception measurements

Other group

Description:

Dexterity, Hand-eye Coordination and Perception of Orientation and Distances

Treatment:

Other: Parabolic flight

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