Lower Limb Mechanical Characteristics: Effect on Running Mechanics and Energetics

This study has been completed.
Sponsor:
Information provided by:
Centre Hospitalier Universitaire de Saint Etienne
ClinicalTrials.gov Identifier:
NCT00522561
First received: August 28, 2007
Last updated: June 9, 2009
Last verified: June 2009
  Purpose

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.


Condition Intervention
Healthy
Other: energetic and non invasive limb mechanical measurements

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Basic Science
Official Title: Lower Limb Mechanical Characteristics: Effect on Running Mechanics and Energetics

Further study details as provided by Centre Hospitalier Universitaire de Saint Etienne:

Primary Outcome Measures:
  • 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 ] [ Designated as safety issue: No ]

Enrollment: 20
Study Start Date: January 2008
Study Completion Date: March 2008
Primary Completion Date: February 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
1
healthy volunteers
Other: energetic and non invasive limb mechanical measurements
Force velocity stiffness running

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.

  Eligibility

Ages Eligible for Study:   20 Years to 35 Years
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes
Criteria

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
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00522561

Locations
France
Service de Physiologie clinique et de l'exercice - CHU Saint-Etienne
Saint-Etienne, France, 42055
Sponsors and Collaborators
Centre Hospitalier Universitaire de Saint Etienne
Investigators
Principal Investigator: Roger OULLION, MD PhD CHU de Saint-Etienne
  More Information

No publications provided

Responsible Party: Roger Oullion, Centre Hospitalier Universitaire de Saint-Etienne
ClinicalTrials.gov Identifier: NCT00522561     History of Changes
Other Study ID Numbers: 0701039, 2007-A00562-51, DGS 2007-0360
Study First Received: August 28, 2007
Last Updated: June 9, 2009
Health Authority: France: Direction Générale de la Santé
France: French Data Protection Authority

Keywords provided by Centre Hospitalier Universitaire de Saint Etienne:
Healthy volunteers
running
energetic cost
limb mechanical characteristics
contractile components
elastic components
healthy men doing regularly physical activities

ClinicalTrials.gov processed this record on September 15, 2014