SFTY 619 5/22/2019 Activity 7.3 Ergonomic Assessments In Module 6, you learned about various ergonomic tools and instruments that can be used to assess ergonomic exposures. The data outcomes from assessments using these tools and instruments can be used to formulate controls, interventions and other programs and initiatives to reduce exposure. This week, you will have two ergonomic assessments to complete. Each assessment is worth 50 points. 7.3.1 Moore-Garg Job Strain Index The Moore-Garg Job Strain Index was proposed by Moore and Garg as a means to assess jobs for risk of musculoskeletal disorders of the distal upper extremities (hand, wrist and elbow). Complete the Moore-Garg Job Strain Index based upon the case below using the spreadsheet developed by the University of South Florida (ASHX). The spreadsheet contains three tabs. Be sure to complete the tab that says Strain Index and the one that says Strain Index (Automatic), which isn’t actually automatic. After completing the assessment, upload your completed and saved Excel® spreadsheet. The following information is provided for the case. The following information was obtained during an ergonomic assessment at a boat manufacturer. The data presented below were captured during an assessment of the shower door assembly job task. Intensity of Exertion Obvious effort; unchanged facial expression Percent Duration of Exertion 30 to 49 Efforts per Minute 4 to 8 Hand/Wrist Posture Marked deviation Speed of Work Duration of Task per Day (hours) Rushed, but able to keep 2 to 4 up Be sure to also answer the following questions and submit your answer to the following questions either in the comments section when uploading your assignment or as a separate uploaded document: What is the job strain index score? Is this job hazardous as it is currently completed? Why or why not? Moore, J.S. & Garg, A. (1995). The strain index: A proposed method to analyze jobs for risk of distal upper extremity disorders. American Industrial Hygiene Association Journal, 56(5), 443458. 1 College of Aeronautics | worldwide.erau.edu All rights are reserved. The material contained herein is the copyright property of Embry-Riddle Aeronautical University, Daytona Beach, Florida, 32114. No part of this material may be reproduced, stored in a retrieval system or transmitted in any form, electronic, mechanical, photocopying, recording or otherwise without the prior written consent of the University. SFTY 619 5/22/2019 7.3.2 Lifting and Carrying Assessment Complete the ergonomic calculator for analyzing lifting operations to determine if the weight lifted is greater than the lifting limit. You should note the lifting limit in comparison to the weight lifted. Use the WISHA Lifting calculator (XLSM – Ergo-Plus). After completing the assessment, upload a copy of your assessment and submit it for this assignment. The following information is provided for the case. The product is brought into the trailers on a pallet via forklift. It is the job of the loader to depalletize the product and stack it within the trailer as the organization’s pallets remain at the facility. The employees load various pine-wood furniture products that are boxed. Product sizes can vary in shape and weights. The depalletizing job selected for the analysis, includes boxes that consist of short end panels for bunk bed units. The boxes measure 43” (l) x 38” (w) x 6” (h). The weight of each box is 37 pounds. Use the additional case information data to complete the assessment. Case Information Information Measurement Width of item 38 inches Weight of load 37 lbs Starting load position (inches away from body) 13.5 inches* Ending load position 23 inches Starting load height 5 inches from ground Ending load height 49 inches Frequency 6 lifts per minute Duration >2 hours Body twisting angle 0 degrees @ origin 0 degrees @ destination Grip/Coupling Fair Distance carried 12 feet *Horizontal distance between ankle and lifting object 13.5 inches = from ankle to midpoint of hands, which were held at differing locations on product. One at left corner, the other in the hand-hole in the box at 19”. For this assignment, calculate the risk at the origin and the destination and upload the results of the highest calculated risk. Page 2 of 2
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