Evaluation of possibilities for a predictive dynamic analysis model for musculoskeletal disorders
(2014) MMK920 20062Innovation
- Abstract
- Modern ergonomics evaluation tools normally consider work postures as static and isolated positions. These tools have not taken into consideration the cumulative stress that builds up from repetitive tasks and work positions.
The purpose of this Master Thesis is to do an initial research whether time can be used as a variable for a predictive dynamic analysis model for musculoskeletal disorders (MSD) according to the assumptions made in this work.
16 operators at SAAB Automobile in Trollhättan were videotaped during their work shift, while they were rotating between six different work tasks at their designated stations. A questionnaire was also given out to the operators in order to measure their level of inconvenience in the different... (More) - Modern ergonomics evaluation tools normally consider work postures as static and isolated positions. These tools have not taken into consideration the cumulative stress that builds up from repetitive tasks and work positions.
The purpose of this Master Thesis is to do an initial research whether time can be used as a variable for a predictive dynamic analysis model for musculoskeletal disorders (MSD) according to the assumptions made in this work.
16 operators at SAAB Automobile in Trollhättan were videotaped during their work shift, while they were rotating between six different work tasks at their designated stations. A questionnaire was also given out to the operators in order to measure their level of inconvenience in the different body parts. The video material was edited and analyzed with the use of RULA and the results from the questionnaire were compiled. The variables derived from these two were analyzed in order to exclude variables that correlated in order to avoid multicollinearity in the linear regression analysis. When the proper variables were chosen, a linear regression analysis was carried out in order to investigate any statistical relationship between the level of inconvenience and work postures.
There was only conclusive statistical relationship in the case of Right lower and upper arm. For the other parts of the body there were no conclusive results. The recommendation is to perform a study over a longer period of time were the level of inconvenience for the operators is measured in an objective way. RULA can also be exchanged or altered to better fit the measured inconvenience and to facilitate statistical analysis. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/4466342
- author
- Persson, Henrik LU
- supervisor
-
- Lars Hanson LU
- organization
- course
- MMK920 20062
- year
- 2014
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- Cumulative stress, RULA, NMQ, correlation, regression
- other publication id
- ISRN LUTMDN/TMAT-5133 SE
- language
- English
- id
- 4466342
- date added to LUP
- 2014-06-23 13:53:54
- date last changed
- 2014-12-08 16:17:57
@misc{4466342,
abstract = {{Modern ergonomics evaluation tools normally consider work postures as static and isolated positions. These tools have not taken into consideration the cumulative stress that builds up from repetitive tasks and work positions.
The purpose of this Master Thesis is to do an initial research whether time can be used as a variable for a predictive dynamic analysis model for musculoskeletal disorders (MSD) according to the assumptions made in this work.
16 operators at SAAB Automobile in Trollhättan were videotaped during their work shift, while they were rotating between six different work tasks at their designated stations. A questionnaire was also given out to the operators in order to measure their level of inconvenience in the different body parts. The video material was edited and analyzed with the use of RULA and the results from the questionnaire were compiled. The variables derived from these two were analyzed in order to exclude variables that correlated in order to avoid multicollinearity in the linear regression analysis. When the proper variables were chosen, a linear regression analysis was carried out in order to investigate any statistical relationship between the level of inconvenience and work postures.
There was only conclusive statistical relationship in the case of Right lower and upper arm. For the other parts of the body there were no conclusive results. The recommendation is to perform a study over a longer period of time were the level of inconvenience for the operators is measured in an objective way. RULA can also be exchanged or altered to better fit the measured inconvenience and to facilitate statistical analysis.}},
author = {{Persson, Henrik}},
language = {{eng}},
note = {{Student Paper}},
title = {{Evaluation of possibilities for a predictive dynamic analysis model for musculoskeletal disorders}},
year = {{2014}},
}