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Some biomechanical aspects of the carpal tunnel.

Authors
Armstrong-TJ; Chaffin-DB
Source
J Biomech 1979 Jul; 12(7):567-570
NIOSHTIC No.
00091620
Abstract
The relationship of flexed and extended wrist forces to wrist size, hand force, and hand position was examined based on biomechanical arguments. The arguments characterize the extrinsic finger flexor tendons inside the carpal tunnel as a frictionless pulley belt mechanism. Synovial membranes surrounding the extrinsic finger flexor tendons are compressed during forceful exertions with the wrist flexed or extended. The authors propose that the biomechanical arguments support the conclusions of other investigations that exertions with certain hand and wrist positions aggravate, precipitate, or cause occupational carpal tunnel syndrome and suggest that male and female wrist size partially explains the prevailing differences of carpal tunnel syndrome in male and female populations.
Keywords
NIOSH-Publication; NIOSH-Grant; Neurotoxic-effects; Physiological-response; Nervous-system-disorders; Humans; Physical-factors; Musculoskeletal-system-disorders; Biomechanics
Contact
Industrial & Operations Engr University of Michigan 2260 G G Brown Laboratory Ann Arbor, Mich 48109
CODEN
JBMCB5
Publication Date
19790701
Document Type
Journal Article
Funding Amount
256516
Funding Type
Grant
Fiscal Year
1979
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-00679
Issue of Publication
7
ISSN
0021-9290
Priority Area
Musculoskeletal-system-disorders
Source Name
Journal of Biomechanics
State
MI
Performing Organization
University of Michigan at Ann Arbor, Ann Arbor, Michigan
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