Recording Methods of Muscle Activity "Onset".

This study has been completed.

Sponsor:

Collaborator:

Norwegian Fund for Postgraduate Training in Physiotherapy

Information provided by (Responsible Party):

Norwegian University of Science and Technology

ClinicalTrials.gov Identifier:

NCT00184535

First received: September 15, 2005

Last updated: October 17, 2012

Last verified: October 2012

History of Changes

Purpose

Delayed anticipatory muscle activity response in deep low back and abdominal muscles has been observed in patients with low back pain, indicative of a pathological condition. Muscle activity onset is traditionally recorded by intramuscular electromyography, but there is a need for a less cumbersome recording method in large clinical studies. The purpose of this experimental study is to explore whether high-frame rate m-mode ultrasound and tissue velocity imaging could measure anticipatory muscle responses ("onset") in the abdominal muscles reliably and comparably accurate to intramuscular EMG.

Condition
Low Back Pain


Study Type:	Observational
Study Design:	Observational Model: Case-Only Time Perspective: Cross-Sectional
Official Title:	Muscle Activity "Onset" in the Transversus Abdominis - Simultaneous Recordings by Intramuscular Electromyography and High Frame Rate Ultrasound Imaging.

Resource links provided by NLM:

MedlinePlus related topics: Back Pain Ultrasound

U.S. FDA Resources

Further study details as provided by Norwegian University of Science and Technology:


Enrollment:	10
Study Start Date:	July 2005
Study Completion Date:	October 2005

Eligibility


Ages Eligible for Study:	30 Years to 65 Years
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	Yes
Sampling Method:	Non-Probability Sample

Study Population

Healthy men and women between 30-65 yrs with no recent low back pain

Criteria

Inclusion Criteria:

Healthy
30-65 yrs

Exclusion Criteria:

recent low back pain
low back, neck or shoulder pain inflicting work absence or bed rest
cardiac, rheumatic or other serious illness
pregnancy

Contacts and Locations

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00184535

Locations


Norway
Norwegian University of Science and Technology (NTNU), Nasjonal senter for spinale lidelser
Trondheim, Norway, 7489

Sponsors and Collaborators

Norwegian University of Science and Technology

Norwegian Fund for Postgraduate Training in Physiotherapy

Investigators


Study Chair:	Ottar Vasseljen, PhD	Norw. Univ of Sci and Technol

More Information

Publications:

Vasseljen O, Dahl HH, Mork PJ, Torp HG. Muscle activity onset in the lumbar multifidus muscle recorded simultaneously by ultrasound imaging and intramuscular electromyography. Clin Biomech (Bristol, Avon). 2006 Nov;21(9):905-13. Epub 2006 Jul 5.


Responsible Party:	Norwegian University of Science and Technology
ClinicalTrials.gov Identifier:	NCT00184535 History of Changes
Other Study ID Numbers:	REK 4.2005.885
Study First Received:	September 15, 2005
Last Updated:	October 17, 2012
Health Authority:	Norway:National Committee for Medical and Health Research Ethics

Keywords provided by Norwegian University of Science and Technology:


Low back pain Neuromuscular control Anticipatory motor control Musculoskeletal Physiologic Processes	Muscle, Skeletal Ultrasonography Electromyography

Additional relevant MeSH terms:


Low Back Pain Back Pain Nervous System Diseases	Neurologic Manifestations Pain Signs and Symptoms

ClinicalTrials.gov processed this record on March 01, 2015

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