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ClinicalTrials.gov Identifier: NCT00184535
Recruitment Status :
First Posted : September 16, 2005
Last Update Posted : September 25, 2017
Norwegian University of Science and Technology
Norwegian Fund for Postgraduate Training in Physiotherapy
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.
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Ages Eligible for Study:
30 Years to 65 Years (Adult, Older Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Healthy men and women between 30-65 yrs with no recent low back pain
recent low back pain
low back, neck or shoulder pain inflicting work absence or bed rest