Lower Limb Mechanical Characteristics: Effect on Running Mechanics and Energetics

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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Key information

Conditions

Healthy

Age range

20 year–35 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

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

Saint-Etienne, 42055, France

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

energetic and non invasive limb mechanical measurements

Other

Force velocity stiffness running

Primary outcomes

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

Sponsors and collaborators

Lead sponsor

Centre Hospitalier Universitaire de Saint Etienne

Other

Registry information

Important dates

Study start: 2008
Primary completion: 2008
Study completion: 2008
First posted: Aug 29, 2007
Registry last updated: Jun 12, 2009

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed