The Effects of the Novel Unloading Device "HEPHAISTOS" on Bone, Muscles and Vessels

NCT ID: NCT03086187

Last Updated: 2017-03-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

11 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-03-31

Study Completion Date

2012-07-31

Brief Summary

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11 healthy men used the HEPHAISTOS unloading orthosis in an ambulatory 8 week intervention study.

It greatly reduces calf muscle forces without reducing ground reaction forces.

Detailed Description

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The 56day unloading intervention with HEPHAISTOS had the following key objectives:

1. Primary objective: Assessment and evaluation of bone adaptation.
2. Secondary objective: Assessment and evaluation of functional and structural muscular adaptations.
3. Third objective: Assessment and evaluation of functional and structural vascular adaptations.
4. Fourth objective: Assessment and evaluation if the present findings deviate from findings observed in established unloading models.

Conditions

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Muscle; Atrophy, General

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Hephaistos unloading orthosis

Hephaistos unloading orthosis: Calf muscle unloading: The 11 male subjects had to wear a novel orthosis for 8 weeks, which greatly reduces plantarflexor forces during gait.

Group Type OTHER

Hephaistos unloading orthosis

Intervention Type DEVICE

The Hephaistos unloading orthosis greatly reduces plantarflexor muscle torque and plantarflexor muscle activation during any gait activity.

Interventions

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Hephaistos unloading orthosis

The Hephaistos unloading orthosis greatly reduces plantarflexor muscle torque and plantarflexor muscle activation during any gait activity.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* male
* age: 20-45
* BMI: 20-30

Exclusion Criteria

* smoking
* professional sports men
* diabetes
* rheumatism
* muscle and joint disease
* bone fractures within 12 months prior to the study
* cruciate ligament rupture within 10 years prior to the study
* metal implants
* participation in any other clinical study within 2 months prior to the study haemophilia
* any blood vessel disease
* epilepsy
* claustrophobia
* herniated disk
* cardiac pulse generator
* drug or alcohol abuse
* hyperlipidaemia
* kidney disease
* hyperhomocysteaemia
* hyper/hypouricemia
* hyper/hypocalcaemia
* anaemia
* vitamin d deficit
* chronical back pain
* deficient certificate of good conduct
* achilles tendon injury
Minimum Eligible Age

20 Years

Maximum Eligible Age

45 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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DLR German Aerospace Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jörn Rittweger, Prof. Dr.

Role: STUDY_DIRECTOR

German Aerospace Center (DLR)

Locations

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German Aerospace Center

Cologne, North Rine Westphalia, Germany

Site Status

Countries

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Germany

Related Links

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http://www.dlr.de

Webpage of the German Aerospace Center (DLR)

Other Identifiers

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HEP

Identifier Type: -

Identifier Source: org_study_id

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