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Title: Rotator cuff strength balance in glovebox workers

Abstract

Gloveboxes are essential to the pharmaceutical, semi-conductor, nuclear, and biochemical industries. While gloveboxes serve as effective containment systems, they are often difficult to work in and present a number of ergonomic hazards. One such hazard is injury to the rotator cuff, a group of tendons and muscles in the shoulder, connecting the upper arm to the shoulder blade. Rotator cuff integrity is critical to shoulder health. This study compared the rotator cuff muscle strength ratios of glovebox workers to the healthy norm. Descriptive statistics were collected using a short questionnaire. Handheld dynamometry was used to quantify the ratio of forces produced for shoulder internal and external rotation. Results showed this population to have shoulder strength ratios significantly different from the healthy norm. Strength ratios were found to be a sound predictor of symptom incidence. The deviation from the normal ratio demonstrates the need for solutions designed to reduce the workload on the rotator cuff musculature in order to improve health and safety. Assessment of strength ratios can be used to screen for risk of symptom development. As a result, this increases technical knowledge and augments operational safety.

Authors:
 [1];  [1];  [1];  [1]
+ Show Author Affiliations
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1342867
Alternate Identifier(s):
OSTI ID: 1550677
Report Number(s):
LA-UR-16-27339
Journal ID: ISSN 1871-5532
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Chemical Health and Safety
Additional Journal Information:
Journal Volume: 24; Journal Issue: 4; Journal ID: ISSN 1871-5532
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; rotator cuff; glovebox; workers; ergonomic hazards; strength ratios; dynamometry

Citation Formats

Lawton, Cindy M., Weaver, Amelia M., Chan, Martha Kwan Yi, and Cournoyer, Michael Edward. Rotator cuff strength balance in glovebox workers. United States: N. p., 2016. Web. doi:10.1016/j.jchas.2016.11.002.
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Lawton, Cindy M., Weaver, Amelia M., Chan, Martha Kwan Yi, & Cournoyer, Michael Edward. Rotator cuff strength balance in glovebox workers. United States. https://doi.org/10.1016/j.jchas.2016.11.002
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Lawton, Cindy M., Weaver, Amelia M., Chan, Martha Kwan Yi, and Cournoyer, Michael Edward. Wed . "Rotator cuff strength balance in glovebox workers". United States. https://doi.org/10.1016/j.jchas.2016.11.002. https://www.osti.gov/servlets/purl/1342867.
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@article{osti_1342867,
title = {Rotator cuff strength balance in glovebox workers},
author = {Lawton, Cindy M. and Weaver, Amelia M. and Chan, Martha Kwan Yi and Cournoyer, Michael Edward},
abstractNote = {Gloveboxes are essential to the pharmaceutical, semi-conductor, nuclear, and biochemical industries. While gloveboxes serve as effective containment systems, they are often difficult to work in and present a number of ergonomic hazards. One such hazard is injury to the rotator cuff, a group of tendons and muscles in the shoulder, connecting the upper arm to the shoulder blade. Rotator cuff integrity is critical to shoulder health. This study compared the rotator cuff muscle strength ratios of glovebox workers to the healthy norm. Descriptive statistics were collected using a short questionnaire. Handheld dynamometry was used to quantify the ratio of forces produced for shoulder internal and external rotation. Results showed this population to have shoulder strength ratios significantly different from the healthy norm. Strength ratios were found to be a sound predictor of symptom incidence. The deviation from the normal ratio demonstrates the need for solutions designed to reduce the workload on the rotator cuff musculature in order to improve health and safety. Assessment of strength ratios can be used to screen for risk of symptom development. As a result, this increases technical knowledge and augments operational safety.},
doi = {10.1016/j.jchas.2016.11.002},
journal = {Journal of Chemical Health and Safety},
number = 4,
volume = 24,
place = {United States},
year = {Wed Nov 23 00:00:00 EST 2016},
month = {Wed Nov 23 00:00:00 EST 2016}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.jchas.2016.11.002
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