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Recording Methods of Muscle Activity "Onset".

This study has been completed.
Norwegian Fund for Postgraduate Training in Physiotherapy
Information provided by (Responsible Party):
Norwegian University of Science and Technology Identifier:
First received: September 15, 2005
Last updated: October 17, 2012
Last verified: October 2012
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.

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:

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

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

Ages Eligible for Study:   30 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
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

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
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Please refer to this study by its identifier: NCT00184535

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

Responsible Party: Norwegian University of Science and Technology Identifier: NCT00184535     History of Changes
Other Study ID Numbers: REK 4.2005.885
Study First Received: September 15, 2005
Last Updated: October 17, 2012

Keywords provided by Norwegian University of Science and Technology:
Low back pain
Neuromuscular control
Anticipatory motor control
Musculoskeletal Physiologic Processes
Muscle, Skeletal

Additional relevant MeSH terms:
Back Pain
Low Back Pain
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms processed this record on May 23, 2017