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Isometric, isoinertial, and psychophysical strength testing: devices and protocols.

Authors
Gallagher-S; Moore-JS; Stobbe-TJ
Source
Muscle Strength. Kumar, S ed., Boca Raton, FL: CRC Press, 2004 Apr; :129-156
NIOSHTIC No.
20024722
Abstract
Many jobs in industry place severe demands on the worker's musculoskeletal system--demands that may approach or exceed worker voluntary strength capabilities. There is evidence to suggest that such jobs increase the likelihood that the worker will experience a musculoskeletal disorder. For this reason, a great deal of effort has been focused recently on developing methods to evaluate muscular strength capabilities of workers, both for purposes of ergonomic job design and for developing worker selection procedures. However, the necessity of using indirect measures of muscular strength makes its assessment quite complex, which has sometimes led to confusion and misunderstanding about appropriate uses of strength measurement techniques. The chapter provides information about the appropriate procedures for measuring and reporting of strength test results for three common measurement techniques used in ergonomics: isometric, isoinertial, and psychophysical. It is hoped that the information in this chapter will provide the reader with a better understanding of the advantages, disadvantages, caveats, and limitations associated with the use of these strength assessment techniques.
Keywords
Musculoskeletal-system; Workers; Musculoskeletal-system-disorders; Muscles; Ergonomics; Injuries
Contact
NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
Publication Date
20040427
Document Type
Book or book chapter
Editors
Kumar-S
Fiscal Year
2004
NTIS Accession No.
NTIS Price
ISBN No.
0415369533
NIOSH Division
PRL
Source Name
Muscle Strength
State
PA
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