EFFECT OF INSTRUCTIONS ON ISOKINETIC TRUNK STRENGTH TESTING VARIABILITY, RELIABILITY, ABSOLUTE VALUE, AND PREDICTIVE-VALIDITY

Although isokinetic strength testing has been in use for more than two decades, and numerous studies have addressed isokinetic performance of the lumbar spine, the effect of instructions on isokinetic trunk strength has not been studied. In a sample of 30 healthy women, this study examined the effec...

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Bibliographic Details
Published in:Spine (Philadelphia, Pa. 1976) Pa. 1976), 1992-08, Vol.17 (8), p.914-921
Main Authors: MATHESON, L, MOONEY, CAIOZZO, JARVIS, G, POTTINGER, J, DEBERRY, C, BACKLUND, K, KLEIN, K, ANTONI, J
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Clinical Neurology
Diseases of the osteoarticular system
Diseases of the spine
Female
Humans
Life Sciences & Biomedicine
Lumbosacral Region - physiology
Medical sciences
Neurosciences & Neurology
Orthopedics
Predictive Value of Tests
Reproducibility of Results
Science & Technology
Weight-Bearing - physiology
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Summary:Although isokinetic strength testing has been in use for more than two decades, and numerous studies have addressed isokinetic performance of the lumbar spine, the effect of instructions on isokinetic trunk strength has not been studied. In a sample of 30 healthy women, this study examined the effect of "high-demand" instructions on lumbar strength performance, High-demand instructions were found to have a substantial positive effect on performance variability, reliability, absolute magnitude, and validity. Under these conditions, isokinetic trunk strength was found to be predictive of performance in a frequent lifting-lowering task.
ISSN:0362-2436
1528-1159
DOI:10.1097/00007632-199208000-00008