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Study of the Effects of Temperature on Metabolism in Human Muscle

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00001753
Recruitment Status : Completed
First Posted : December 10, 2002
Last Update Posted : March 4, 2008
Information provided by:
National Institutes of Health Clinical Center (CC)

Brief Summary:

This study will examine the role of temperature in changing energy metabolism in human muscle. In order to do this, researchers will use magnetic resonance imaging (MRI) to provide information about how parts of muscle operate during exercise.

Magnetic resonance imaging (MRI) is a diagnostic tool that creates high quality images of the human body without the use of X-ray (radiation). In this study, MRI will be used to measure the temperature and energy level of specific muscles during rest and exercise. In addition, the muscles being tested will be heated and cooled to see if temperature directly affects levels of energy in muscle.

Condition or disease Intervention/treatment Phase
Healthy Procedure: Magnetic resonance imaging Phase 1

Detailed Description:
This study will examine the role of temperature in modulating aspects of energy metabolism in human skeletal muscle. Tests will be conducted at rest and during concentric dorsiflexion exercise of the Tibialis anterior (TA) muscle using an existing custom-designed dynamometer in conjunction with mild local heating and cooling. Magnetic resonance spectroscopy (MRS), performed in a 4-tesla whole-body NMR system, will be used to non-invasively measure muscle temperature and energy-state. Specifically these tests will assess the extent to which temperature changes occur during aerobic exercise and how small temperature changes affect mitochondrial function in-vivo.

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Study Type : Interventional  (Clinical Trial)
Enrollment : 17 participants
Primary Purpose: Treatment
Official Title: Study of Temperature Effects on Skeletal Muscle Aerobic Energy Metabolism
Study Start Date : September 1998
Study Completion Date : November 2000

Resource links provided by the National Library of Medicine

MedlinePlus related topics: MRI Scans

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Ages 18 to 50.

Male and female subjects.

Capable of giving informed consent.

Healthy normal volunteers.

No cardiac pacemaker of implantable defibrillator.

No aneurysm clip.

No neural stimulator (e.g. TENS-unit).

No ear implant of any type.

No metal in the eye (e.g. from machining).

No implanted device (e.g. insulin pump, drug infusion device).

No metallic foreign body, shrapnel, or bullet.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00001753

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United States, Maryland
National Heart, Lung and Blood Institute (NHLBI)
Bethesda, Maryland, United States, 20892
Sponsors and Collaborators
National Heart, Lung, and Blood Institute (NHLBI)

Layout table for additonal information Identifier: NCT00001753     History of Changes
Other Study ID Numbers: 980166
First Posted: December 10, 2002    Key Record Dates
Last Update Posted: March 4, 2008
Last Verified: August 1999

Keywords provided by National Institutes of Health Clinical Center (CC):
Normal Volunteer
Tibialix Anterior