Comparing the biomechanical and perceived exertion imposed on workers when using manual mechanical and powered cargo management systems during ladder loading and unloading tasks

Antonio Miguel Cruz; Jessica Murphy; Avneet Kaur Chohan; Daniel Alejandro Quiroga Torres; Laura Catalina Izquierdo Martinez; Diana Carolina Rincon Martinez; Lili Liu; Adriana Maria Rios Rincon

doi:10.1016/j.ergon.2021.103199

Comparing the biomechanical and perceived exertion imposed on workers when using manual mechanical and powered cargo management systems during ladder loading and unloading tasks

Antonio Miguel Cruz, Jessica Murphy, Avneet Kaur Chohan, Daniel Alejandro Quiroga Torres, Laura Catalina Izquierdo Martinez, Diana Carolina Rincon Martinez, Lili Liu, Adriana Maria Rios Rincon

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

This study aimed to compare the effects of two different cargo management systems (one powered system, i.e., the RazerLift®, and one Traditional system) on the biomechanical and perceived exertion experienced by workers when performing routine ladder loading and unloading tasks. Seven experienced workers performed ladder loading and unloading tasks. Compared to when the Traditional system was being used, the cumulative static low-back compression force was reduced by 57.9% (p < 0.05) and 39.3% (p < 0.05) when the RazerLift® was being used to perform ladder loading and unloading tasks, respectively. Overall, the cumulative shoulder flexor moments were reduced by 34.8% (p < 0.05) and 41.3% (p < 0.05) when the RazerLift® was being used to perform ladder loading and unloading tasks, respectively. Overall, the perceived exertion score was reduced by 250.1% (p < 0.05) when the RazerLift® was being used compared to the Traditional system. In conclusion, our study demonstrated that the RazerLift® reduces the biomechanical and psychophysical exposure associated with the development of musculoskeletal disorders while performing ladder loading and unloading tasks.

Translated title of the contribution	Comparación del esfuerzo biomecánico y percibido impuesto a los trabajadores al utilizar sistemas mecánicos manuales y motorizados de gestión de la carga durante las tareas de carga y descarga de escaleras.
Original language	English (US)
Article number	103199
Pages (from-to)	1-13
Number of pages	13
Journal	International Journal of Industrial Ergonomics
Volume	86
DOIs	https://doi.org/10.1016/j.ergon.2021.103199
State	Published - Nov 2021

All Science Journal Classification (ASJC) codes

Biomedical Engineering
Public Health, Environmental and Occupational Health

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ergon.2021.103199License: CC BY

https://www.sciencedirect.com/science/article/pii/S0169814121001177License: CC BY

Scolarship Emerging Leaders in the Americas Program (ELAP)
Quiroga Torres, Daniel Alejandro (Recipient), Jun 14 2019
Prize

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Miguel Cruz, A., Murphy, J., Kaur Chohan, A., Quiroga Torres, D. A., Izquierdo Martinez, L. C., Rincon Martinez, D. C., Liu, L., & Rios Rincon, A. M. (2021). Comparing the biomechanical and perceived exertion imposed on workers when using manual mechanical and powered cargo management systems during ladder loading and unloading tasks. International Journal of Industrial Ergonomics, 86, 1-13. Article 103199. https://doi.org/10.1016/j.ergon.2021.103199

@article{b88845552b554c0aac78197ff6b96ea4,

title = "Comparing the biomechanical and perceived exertion imposed on workers when using manual mechanical and powered cargo management systems during ladder loading and unloading tasks",

abstract = "This study aimed to compare the effects of two different cargo management systems (one powered system, i.e., the RazerLift{\textregistered}, and one Traditional system) on the biomechanical and perceived exertion experienced by workers when performing routine ladder loading and unloading tasks. Seven experienced workers performed ladder loading and unloading tasks. Compared to when the Traditional system was being used, the cumulative static low-back compression force was reduced by 57.9% (p < 0.05) and 39.3% (p < 0.05) when the RazerLift{\textregistered} was being used to perform ladder loading and unloading tasks, respectively. Overall, the cumulative shoulder flexor moments were reduced by 34.8% (p < 0.05) and 41.3% (p < 0.05) when the RazerLift{\textregistered} was being used to perform ladder loading and unloading tasks, respectively. Overall, the perceived exertion score was reduced by 250.1% (p < 0.05) when the RazerLift{\textregistered} was being used compared to the Traditional system. In conclusion, our study demonstrated that the RazerLift{\textregistered} reduces the biomechanical and psychophysical exposure associated with the development of musculoskeletal disorders while performing ladder loading and unloading tasks.",

author = "{Miguel Cruz}, Antonio and Jessica Murphy and {Kaur Chohan}, Avneet and {Quiroga Torres}, {Daniel Alejandro} and {Izquierdo Martinez}, {Laura Catalina} and {Rincon Martinez}, {Diana Carolina} and Lili Liu and {Rios Rincon}, {Adriana Maria}",

year = "2021",

month = nov,

doi = "10.1016/j.ergon.2021.103199",

language = "English (US)",

volume = "86",

pages = "1--13",

journal = "International Journal of Industrial Ergonomics",

issn = "0169-8141",

publisher = "Elsevier",

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Miguel Cruz, A, Murphy, J, Kaur Chohan, A, Quiroga Torres, DA, Izquierdo Martinez, LC, Rincon Martinez, DC, Liu, L & Rios Rincon, AM 2021, 'Comparing the biomechanical and perceived exertion imposed on workers when using manual mechanical and powered cargo management systems during ladder loading and unloading tasks', International Journal of Industrial Ergonomics, vol. 86, 103199, pp. 1-13. https://doi.org/10.1016/j.ergon.2021.103199

Comparing the biomechanical and perceived exertion imposed on workers when using manual mechanical and powered cargo management systems during ladder loading and unloading tasks. / Miguel Cruz, Antonio; Murphy, Jessica; Kaur Chohan, Avneet et al.
In: International Journal of Industrial Ergonomics, Vol. 86, 103199, 11.2021, p. 1-13.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Comparing the biomechanical and perceived exertion imposed on workers when using manual mechanical and powered cargo management systems during ladder loading and unloading tasks

AU - Miguel Cruz, Antonio

AU - Murphy, Jessica

AU - Kaur Chohan, Avneet

AU - Quiroga Torres, Daniel Alejandro

AU - Izquierdo Martinez, Laura Catalina

AU - Rincon Martinez, Diana Carolina

AU - Liu, Lili

AU - Rios Rincon, Adriana Maria

PY - 2021/11

Y1 - 2021/11

N2 - This study aimed to compare the effects of two different cargo management systems (one powered system, i.e., the RazerLift®, and one Traditional system) on the biomechanical and perceived exertion experienced by workers when performing routine ladder loading and unloading tasks. Seven experienced workers performed ladder loading and unloading tasks. Compared to when the Traditional system was being used, the cumulative static low-back compression force was reduced by 57.9% (p < 0.05) and 39.3% (p < 0.05) when the RazerLift® was being used to perform ladder loading and unloading tasks, respectively. Overall, the cumulative shoulder flexor moments were reduced by 34.8% (p < 0.05) and 41.3% (p < 0.05) when the RazerLift® was being used to perform ladder loading and unloading tasks, respectively. Overall, the perceived exertion score was reduced by 250.1% (p < 0.05) when the RazerLift® was being used compared to the Traditional system. In conclusion, our study demonstrated that the RazerLift® reduces the biomechanical and psychophysical exposure associated with the development of musculoskeletal disorders while performing ladder loading and unloading tasks.

AB - This study aimed to compare the effects of two different cargo management systems (one powered system, i.e., the RazerLift®, and one Traditional system) on the biomechanical and perceived exertion experienced by workers when performing routine ladder loading and unloading tasks. Seven experienced workers performed ladder loading and unloading tasks. Compared to when the Traditional system was being used, the cumulative static low-back compression force was reduced by 57.9% (p < 0.05) and 39.3% (p < 0.05) when the RazerLift® was being used to perform ladder loading and unloading tasks, respectively. Overall, the cumulative shoulder flexor moments were reduced by 34.8% (p < 0.05) and 41.3% (p < 0.05) when the RazerLift® was being used to perform ladder loading and unloading tasks, respectively. Overall, the perceived exertion score was reduced by 250.1% (p < 0.05) when the RazerLift® was being used compared to the Traditional system. In conclusion, our study demonstrated that the RazerLift® reduces the biomechanical and psychophysical exposure associated with the development of musculoskeletal disorders while performing ladder loading and unloading tasks.

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DO - 10.1016/j.ergon.2021.103199

M3 - Article

SN - 0169-8141

VL - 86

SP - 1

EP - 13

JO - International Journal of Industrial Ergonomics

JF - International Journal of Industrial Ergonomics

M1 - 103199

ER -

Miguel Cruz A, Murphy J, Kaur Chohan A, Quiroga Torres DA, Izquierdo Martinez LC, Rincon Martinez DC et al. Comparing the biomechanical and perceived exertion imposed on workers when using manual mechanical and powered cargo management systems during ladder loading and unloading tasks. International Journal of Industrial Ergonomics. 2021 Nov;86:1-13. 103199. doi: 10.1016/j.ergon.2021.103199

Comparing the biomechanical and perceived exertion imposed on workers when using manual mechanical and powered cargo management systems during ladder loading and unloading tasks

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

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Prizes

Scolarship Emerging Leaders in the Americas Program (ELAP)

Cite this