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Force Enhancement of Musculus Quadriceps Femoris During and After Excentric Muscle Activity in Vivo

NCT ID: NCT00690547

Last Updated: 2009-11-30

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

UNKNOWN

Total Enrollment

60 participants

Study Classification

OBSERVATIONAL

Study Start Date

2008-10-31

Study Completion Date

2010-10-31

Brief Summary

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Force enhancement (FE) describes the phenomenon of strength potentialization of a muscle cell or the complete muscle during and after active extension compared to the strength of an isometric contraction with same muscle length. The underlying physiological mechanism of this phenomenon is not completely known today. In vitro trials indicate that the interaction of an active and a passive component on the cellular level are responsible for the higher strength measurements. So far FE could be shown in vitro and in vivo on muscle fibers and small human muscles. Further research is needed for verification of the existence of FE in voluntary motor activity in everyday life. In order to approach this objective the investigators will scrutinize the functionality of the deliberately activated musculus (m) quadriceps femoris during and after active extension on the basis of in vivo studies.

Detailed Description

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The research proposal is resubmitted with no amendments made regarding content.

Conditions

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Muscle Quadriceps Femoris Healthy

Keywords

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Functionality Deliberately Activated Quadriceps Femoris During After Active Extension

Study Design

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Study Time Perspective

PROSPECTIVE

Study Groups

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Test Group

muscle activation

Intervention Type OTHER

activation of the muscle quadriceps femoris

Interventions

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muscle activation

activation of the muscle quadriceps femoris

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Males without previous muscular or neurophysiological diseases
* Age between 20 and 40 years

Exclusion Criteria

* Previous muscular or neurophysiological diseases
Minimum Eligible Age

20 Years

Maximum Eligible Age

40 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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German Research Foundation

OTHER

Sponsor Role lead

Responsible Party

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Technical University of Munich, Department of Biomechanics in Sports

Principal Investigators

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Ansgar Schmirtz, Prof. Dr.

Role: PRINCIPAL_INVESTIGATOR

Technical University of Munich, Department of Biomechanics in Sports

Locations

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Technical University of Munich, Department of Biomechanics in Sports

Munich, , Germany

Site Status

Countries

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Germany

Other Identifiers

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DFG27112007

Identifier Type: -

Identifier Source: org_study_id