The Effects of Load-Positioning Material Handling Equipment on Spinal Loading During Manual Handling of Bulk Bags

Bibliographic Details
Main Author:	Ramsey, Todd R.
Language:	English
Published:	University of Cincinnati / OhioLINK 2013
Subjects:	Biomechanics low back biomechanics manual materials handling load positioning spine loading palletizing lift table
Online Access:	http://rave.ohiolink.edu/etdc/view?acc_num=ucin1368027435

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spelling	ndltd-OhioLink-oai-etd.ohiolink.edu-ucin13680274352021-08-03T05:23:24Z The Effects of Load-Positioning Material Handling Equipment on Spinal Loading During Manual Handling of Bulk Bags Ramsey, Todd R. Biomechanics low back biomechanics manual materials handling load positioning spine loading palletizing lift table Low back disorders among workers in manual materials handling industries are very prevalent and represent a large proportion of worker’s compensation costs in the United States. A potentially significant source for LBD risk in these industries is manual palletizing operations. Previous studies investigating biomechanical loading of the spine for manual palletizing have identified load location on the pallet as one of the primary drivers for potential injury. However, evidence on the effectiveness of ergonomic interventions is limited, with no research investigating interventions that focus on modifying load location. The objective of this study was to evaluate the effectiveness to control LBD risk and spine loading of two interventions: a self-leveling pallet carousel designed to position the loads vertically and horizontally at the lift origin and an adjustable cart designed to raise loads vertically at the lift destination. Thirteen trained males (aged 18-40 years) participated in a simulated order selecting task. Spine loads that were predicted by an EMG-assisted model, LBD risk index, and perceived exertion were quantified for each intervention condition (e.g. carousel to traditional cart, pallet to traditional cart, pallet to adjustable cart, and carousel to adjustable cart). The results showed that combining both devices results in reduction in LBD risk (7%), spine compression (61%), anterior-posterior shear (72%), and lateral shear (63%). Individually, the carousel was responsible for the greatest reductions, but the lowest values were typically achieved by combining adjustable cart and carousel. The results from this study show that these, and similar devices may have the potential to reduce low back injuries in workplaces where palletizing and order selecting operations occur frequently. Further investigation into real-world feasibility and long term use effects is still needed to provide a more complete picture of the benefits of these load positioning devices. 2013-10-11 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin1368027435 http://rave.ohiolink.edu/etdc/view?acc_num=ucin1368027435 unrestricted This thesis or dissertation is protected by copyright: some rights reserved. It is licensed for use under a Creative Commons license. Specific terms and permissions are available from this document's record in the OhioLINK ETD Center.
collection	NDLTD
language	English
sources	NDLTD
topic	Biomechanics low back biomechanics manual materials handling load positioning spine loading palletizing lift table
spellingShingle	Biomechanics low back biomechanics manual materials handling load positioning spine loading palletizing lift table Ramsey, Todd R. The Effects of Load-Positioning Material Handling Equipment on Spinal Loading During Manual Handling of Bulk Bags
author	Ramsey, Todd R.
author_facet	Ramsey, Todd R.
author_sort	Ramsey, Todd R.
title	The Effects of Load-Positioning Material Handling Equipment on Spinal Loading During Manual Handling of Bulk Bags
title_short	The Effects of Load-Positioning Material Handling Equipment on Spinal Loading During Manual Handling of Bulk Bags
title_full	The Effects of Load-Positioning Material Handling Equipment on Spinal Loading During Manual Handling of Bulk Bags
title_fullStr	The Effects of Load-Positioning Material Handling Equipment on Spinal Loading During Manual Handling of Bulk Bags
title_full_unstemmed	The Effects of Load-Positioning Material Handling Equipment on Spinal Loading During Manual Handling of Bulk Bags
title_sort	effects of load-positioning material handling equipment on spinal loading during manual handling of bulk bags
publisher	University of Cincinnati / OhioLINK
publishDate	2013
url	http://rave.ohiolink.edu/etdc/view?acc_num=ucin1368027435
work_keys_str_mv	AT ramseytoddr theeffectsofloadpositioningmaterialhandlingequipmentonspinalloadingduringmanualhandlingofbulkbags AT ramseytoddr effectsofloadpositioningmaterialhandlingequipmentonspinalloadingduringmanualhandlingofbulkbags
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The Effects of Load-Positioning Material Handling Equipment on Spinal Loading During Manual Handling of Bulk Bags

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