Lower Limb Mechanical Characteristics: Effect on Running Mechanics and Energetics

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

COMPLETED

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-01-31

Study Completion Date

2008-03-31

Brief Summary

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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.

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Detailed Description

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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.

Conditions

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Healthy

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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1

healthy volunteers

Group Type OTHER

energetic and non invasive limb mechanical measurements

Intervention Type OTHER

Force velocity stiffness running

Interventions

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energetic and non invasive limb mechanical measurements

Force velocity stiffness running

Intervention Type OTHER

Eligibility Criteria

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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

Minimum Eligible Age

20 Years

Maximum Eligible Age

35 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes