A useful technique for measurement of back strength in osteoporotic and elderly patients

Paul John Limburg, M. Sinaki, J. W. Rogers, P. E. Caskey, B. K. Pierskalla

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Improvement of back extensor strength (BES) can be used as a therapeutic method for patients with chronic back pain and osteoporosis. The method of evaluation must be reliable and accurate without compromising the condition of the patient. We report the development of a back isometric dynamometer (BID-2000) designed specifically by two of us to address these concerns in elderly patients with osteopenia or osteoporosis. As the demographics of the general population change, increasing numbers of patients will need the type of monitoring that the BID-2000 provides. Aging has been shown to cause a reduction in the number of functional muscle motor units. To examine this effect on BES, we tested 50 normal, healthy women who were 30 to 79 years old. Proper testing of BES in patients with fragile vertebrae should include isometric measurement in the prone position, maneuverability of the device to allow comfortable positioning of the patient, and simplicity of technique to minimize repetitious performance of maximal contraction. The BID-2000 incorporates each of these features and also provides meaningful results inexpensively. The device offers a safe, reliable (coefficient of variation = 2.33%), and valid (P = 0.001) method of evaluation. The results of our study demonstrated moderate, steady reduction of BES with increasing age and with each successive decade.

Original languageEnglish (US)
Pages (from-to)39-44
Number of pages6
JournalMayo Clinic Proceedings
Volume66
Issue number1
StatePublished - 1991

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Osteoporosis
Patient Positioning
Equipment and Supplies
Prone Position
Metabolic Bone Diseases
Back Pain
Chronic Pain
Spine
Demography
Muscles
Population
Therapeutics

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Limburg, P. J., Sinaki, M., Rogers, J. W., Caskey, P. E., & Pierskalla, B. K. (1991). A useful technique for measurement of back strength in osteoporotic and elderly patients. Mayo Clinic Proceedings, 66(1), 39-44.

A useful technique for measurement of back strength in osteoporotic and elderly patients. / Limburg, Paul John; Sinaki, M.; Rogers, J. W.; Caskey, P. E.; Pierskalla, B. K.

In: Mayo Clinic Proceedings, Vol. 66, No. 1, 1991, p. 39-44.

Research output: Contribution to journalArticle

Limburg, PJ, Sinaki, M, Rogers, JW, Caskey, PE & Pierskalla, BK 1991, 'A useful technique for measurement of back strength in osteoporotic and elderly patients', Mayo Clinic Proceedings, vol. 66, no. 1, pp. 39-44.
Limburg, Paul John ; Sinaki, M. ; Rogers, J. W. ; Caskey, P. E. ; Pierskalla, B. K. / A useful technique for measurement of back strength in osteoporotic and elderly patients. In: Mayo Clinic Proceedings. 1991 ; Vol. 66, No. 1. pp. 39-44.
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