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Lower Limb Mechanical Characteristics: Effect on Running Mechanics and Energetics

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

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
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.


Ages Eligible for Study:   20 Years to 35 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

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
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Please refer to this study by its identifier: NCT00522561

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

Responsible Party: Roger Oullion, Centre Hospitalier Universitaire de Saint-Etienne Identifier: NCT00522561     History of Changes
Other Study ID Numbers: 0701039
DGS 2007-0360
Study First Received: August 28, 2007
Last Updated: June 9, 2009

Keywords provided by Centre Hospitalier Universitaire de Saint Etienne:
Healthy volunteers
energetic cost
limb mechanical characteristics
contractile components
elastic components
healthy men doing regularly physical activities processed this record on May 22, 2017