Abstract
Nadler SF, DePrince ML, Hauesien N, Malanga GA, Stitik TP, Price E. Portable dynamometer
anchoring station for measuring strength of the hip extensors and abductors. Arch
Phys Med Rehabil 2000;81:1072-6. Objective: To assess the reliability of a specially designed dynamometer anchoring station in
the measurement of hip muscle strength. Design: Prospective study using test-retest design. Setting: Outpatient clinic setting. Participants: Ten subjects, ages 25 to 35yrs. Main Outcome Measures: Using the apparatus, three consecutive measures were recorded for hip abduction and
extension by an inexperienced examiner. Two weeks later, the same subjects were retested,
with the evaluator blinded to the initial results. In both the test and retest, average
and maximal values of strength were calculated for each muscle. Reliability of the
device was assessed by computing the intraclass correlation coefficients and coefficients
of variation (CVs). Results: Intraclass correlation coefficients ranged from .94 to .98. The average CV for the
maximal and average abduction strength had values of 4.77% and 4%, respectively. The
maximal and average extension strength had average CV values of 8.06% and 7.83%, respectively.
Conclusion: This specially designed dynamometer anchoring station has been found to be highly
reliable in the measurement of hip girdle strength and has the advantage of easy adjustability
and portability for large-scale screenings. This device enhances the reliability of
the dynamometer, which may be subject to considerable variability when applied by
hand to the powerful hip girdle musculature. © 2000 by the American Congress of Rehabilitation Medicine and the American Academy
of Physical Medicine and Rehabilitation
Keywords
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Article info
Publication history
Accepted:
February 8,
2000
Received in revised form:
February 8,
2000
Received:
October 5,
1999
Footnotes
☆No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit upon the authors or upon any organization with which the authors are associated.
☆☆Reprint requests to Scott F. Nadler, DO, 90 Bergen Street, Suite 3100, Newark, NJ 07103.
★Supplier
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Copyright
© 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation. Published by Elsevier Inc. All rights reserved.
