Recording Methods of Muscle Activity "Onset".

Norwegian University of Science and Technology

Status: Completed

Conditions: Low Back Pain

Study type: Observational

Funder types: Other

Identifiers

NCT00184535

REK 4.2005.885

Details and patient eligibility

About

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.

Enrollment: 10 patients

Sex: All

Ages: 30 to 65 years old

Volunteers: Accepts Healthy Volunteers

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