Recording Methods of Muscle Activity "Onset".

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

10 participants

Study Classification

OBSERVATIONAL

Study Start Date

2005-07-31

Study Completion Date

2005-10-31

Brief Summary

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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.

Detailed Description

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Conditions

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Low Back Pain

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

CROSS_SECTIONAL

Eligibility Criteria

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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

Minimum Eligible Age

30 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Ottar Vasseljen, PhD

Role: STUDY_CHAIR

Norw. Univ of Sci and Technol

Locations

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

Trondheim, , Norway

Site Status

Countries

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Norway

References

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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). 2006 Nov;21(9):905-13. doi: 10.1016/j.clinbiomech.2006.05.003. Epub 2006 Jul 5.

Reference Type RESULT

PMID: 16822599 (View on PubMed)

Other Identifiers

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REK 4.2005.885

Identifier Type: -

Identifier Source: org_study_id