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J Rehabil Res Dev. 1997 Oct;34(4):440-7.

Endurance of trunk muscles in persons with chronic low back pain: assessment, performance, training.

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University of Vermont, Department of Physical Therapy, Burlington 05401, USA.


Trunk muscles are designed to fulfill their role of continuous activity throughout the day, but pain and inactivity alter muscles so that they fatigue in normal situations. Lack of endurance of the trunk muscles is an important factor in low back pain (LBP). This paper examines some methods to objectively test endurance of trunk flexor and extensor muscles in static and dynamic situations, and presents results of endurance testing in persons with chronic LBP compared to nonimpaired cohorts. Self perception of fitness affects some test results. Methods for increasing endurance are discussed along with benefits observed from training programs.

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