Lower Limb Mechanical Characteristics: Effect on Running Mechanics and Energetics

June 9, 2009 updated by: Centre Hospitalier Universitaire de Saint Etienne
Inter-individual variability in energetic cost of running may be partly explained by lower limbs mechanical characteristics. The transposition of muscle mechanical model with two components (contractile and elastic) to the whole lower limb mechanical behavior analysis during running. The main aim of present investigation is to study the effects of lower limb mechanical characteristic (force, velocity, stiffness) on the energetic cost of running using a lower limb mechanical approach including both contractile and elastic components.Twenty healthy men will run on a treadmill at 12km.h-1 in 8 different 5 min-conditions. Through conditions, stride frequency, sole stiffness and subject's body weight will be changed to allow artificial variations in lower limb mechanical characteristics. Energetic and non-invasive mechanical measurements analysis will be performed to obtain energetic cost of running and to compute force, velocity and stiffness of lower limbs for each condition.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Main aim: Identify the effect of mechanical characteristic induced on lower limbs on the energetic cost of running.

Secondary aim : Minimize the energetic cost of running by lower limb mechanical characteristics optimization.

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Saint-Etienne, France, 42055
        • Service de Physiologie clinique et de l'exercice - CHU Saint-Etienne

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 35 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • healthy men being between 20 and 35 years old and doing regularly physical activities
  • subjects must be able to run at 12 km/h during 15 minutes in aerobic condition
  • not be sedentary and not do running competitions
  • be affiliated to a social security system
  • Sign a written inform consent

Exclusion Criteria:

  • presenting a clinic sign of intolerance to exercise, and particularly to running
  • overweight subjects
  • having a medical treatment which may interfere with the running quality or with one of the physiological parameters measured
  • taking part at the same moment in another medicinal research

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: 1
healthy volunteers
Other: energetic and non invasive limb mechanical measurements
Force velocity stiffness running

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
the energetic cost of running: the energetic cost (Oxygen consumption by meter covered) is calculated by the ratio of oxygen consumption on the running velocity.
Time Frame: within 4 weeks after inclusion
within 4 weeks after inclusion

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Centre Hospitalier Universitaire de Saint Etienne

Investigators

  • Principal Investigator: Roger OULLION, MD PhD, CHU de Saint-Etienne

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2008

Primary Completion (Actual)

February 1, 2008

Study Completion (Actual)

March 1, 2008

Study Registration Dates

First Submitted

August 28, 2007

First Submitted That Met QC Criteria

August 28, 2007

First Posted (Estimate)

August 29, 2007

Study Record Updates

Last Update Posted (Estimate)

June 12, 2009

Last Update Submitted That Met QC Criteria

June 9, 2009

Last Verified

June 1, 2009

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • 0701039
  • 2007-A00562-51
  • DGS 2007-0360

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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