Details:

Alternative Title:
Med Eng Phys
Personal Author:
Wu, John Z. ; Sinsel, Erik W. ; Shroyer, Justin F. ; Welcome, Daniel E. ; Zhao, Kristin D. ; ... More +
Wu, John Z. ; Sinsel, Erik W. ; Shroyer, Justin F. ; Welcome, Daniel E. ; Zhao, Kristin D. ; An, Kai-Nan ; Buczek, Frank L. ; Less -
Description:
Strong evidence indicates that highly repetitive manual work is associated with the development of upper extremity musculoskeletal disorders (MSDs). One of the occupational activities that involves highly repetitive and forceful hand work is manual pipetting in chemical or biological laboratories. In the current study, we quantified tendon displacement as a parameter to assess the cumulative loading exposure of the musculoskeletal system in the thumb during pipetting. The maximal tendon displacement was found in the flexor pollicis longus (FPL) tendon. Assuming that subjects' pipetting rates were maintained constant during a period of 1 h, the average accumulated tendon displacement in the FPL reached 29 m, which is in the lower range of those observed in other occupational activities, such as typing and nail gun operations. Our results showed that tendon displacement data contain relatively small standard deviations, despite high variances in thumb kinematics, suggesting that the tendon displacements may be useful in evaluating the musculoskeletal loading profile.
Subject:
[+]
Adult
Article
Biomechanical Phenomena
Cumulative Trauma Disorders
Female
Humans
Inverse Dynamics
Laboratories
Male
Modeling
Muscle-tendon Force
Occupations
Pipette
Range Of Motion, Articular
Tendons
Thumb
Weight-Bearing

Source:
Med Eng Phys. 35(12):1801-1810.
Pubmed ID:
24018066
Pubmed Central ID:
PMC5014230
Document Type:
Journal Article ;
Funding:
CC999999/Intramural CDC HHS/United States ;
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:b00c7b0fe59d98f22c1a3a865d1cf9f528f8a5287c6a5b173fed6c40591181f5
File Type:

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