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The Effect of Gravity on the Muscular Control of Landing From a Jump

NCT02563223 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 18

Last updated 2015-09-30

No results posted yet for this study

Summary

In this project, investigators propose to study the jump in different reduced gravity fields obtained during parabolic flights profiles but also during increased gravity fields obtained during turns of the airplane or during the pull-up phase of the parabola. By means of a pneumatic device, an additional pull-down force will be added to the vertical force caused by the gravity field. By combining different levels of gravity to different levels of the added pull-down force it will be possible to dissociate the respective contribution of the otolithic and proprioceptive systems to the anticipatory landing response. To the investigators' knowledge, only one study has modified the gravity field during a jump. However, these authors did not add a pull-down force and only analyzed the vertical ground reaction force.

A better knowledge of the sensory-motor control of the landing phase of a jump will also increase the investigators' understanding of the physiopathology of joint instability. Indeed, similarities could be found between the evolution of the motor response due to the absence gravity during long-duration space flights and the pathological process of chronic ankle and knee instability. The knowledge generated by this study will thus provide invaluable information in the context of human performance and rehabilitation.

Conditions

  • Healthy Volunteers

Interventions

OTHER

Parabolic flight

DEVICE

Subject Loading System

a device that combines a force platform on which the subject jumps and a Subject Loading System (SLS) that pulls the subject downwards.

Sponsors & Collaborators

  • University Hospital, Caen

    lead OTHER

Study Design

Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2011-11-30
Primary Completion
2015-10-31

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02563223 on ClinicalTrials.gov