Lower Limb Mechanical Characteristics: Effect on Running Mechanics and Energetics

NCT00522561 | Completed

• 3 other identifiers: 07010392007-A00562-51DGS 2007-0360
• Study Type: interventional
• Target: 20
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Healthy

Keywords

Healthy volunteers; running; energetic cost; limb mechanical characteristics; contractile components; elastic components; healthy men doing regularly physical activities

Outcome Measures

Primary Outcomes (1)

• 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.

  within 4 weeks after inclusion

Study Arms (1)

1

OTHER

healthy volunteers

Other: energetic and non invasive limb mechanical measurements

Interventions

energetic and non invasive limb mechanical measurements OTHER

Force velocity stiffness running

1

Eligibility Criteria

• Age: 20 Years - 35 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• 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

You may not qualify if:

• 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

Sponsors & Collaborators

• Centre Hospitalier Universitaire de Saint Etienne: lead

Study Sites (1)

Service de Physiologie clinique et de l'exercice - CHU Saint-Etienne

Saint-Etienne, 42055, France

Location

Study Officials

• Roger OULLION, MD PhD

  CHU de Saint-Etienne

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER

Study Record Dates

• First Submitted: August 28, 2007
• First Posted: August 29, 2007
• Study Start: January 1, 2008
• Primary Completion: February 1, 2008
• Study Completion: March 1, 2008
• Last Updated: June 12, 2009

Record last verified: 2009-06

Locations

FR (1)