Recording Methods of Muscle Activity ”Onset”.

This study has been completed.

First Received on September 15, 2005. Last Updated on May 31, 2006 History of Changes

Sponsor:	Norwegian University of Science and Technology
Collaborator:	Norwegian Fund for Postgraduate Training in Physiotherapy
Information provided by:	Norwegian University of Science and Technology
ClinicalTrials.gov Identifier:	NCT00184535

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:	Additional Descriptors: Convenience Sample Primary Purpose: Screening Time Perspective: Cross-Sectional Time Perspective: Prospective
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:

Estimated Enrollment:	12
Study Start Date:	July 2005
Estimated Study Completion Date:	October 2005

Eligibility

Ages Eligible for Study:	30 Years to 65 Years
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	Yes

Criteria

Inclusion Criteria:

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

Exclusion Criteria:

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

Contacts and Locations

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

No publications provided

ClinicalTrials.gov Identifier:	NCT00184535 History of Changes
Other Study ID Numbers:	REK 4.2005.885
Study First Received:	September 15, 2005
Last Updated:	May 31, 2006
Health Authority:	Norway: The National Committees for Research Ethics in Norway

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:

Back Pain
Low Back Pain
Pain

Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms

ClinicalTrials.gov processed this record on February 09, 2012