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  • OSHAcademy

    Course 711 Study Guide

    Copyright 2000-2013 Geigle Safety Group, Inc.

    Introduction to

    Ergonomics

  • OSHAcademy

    Course 711 Study Guide

    Copyright 2000-2013 Geigle Safety Group, Inc. Page 1 of 51

    OSHAcademy Course 711 Study Guide

    Introduction to Ergonomics

    Copyright 2013 Geigle Safety Group, Inc.

    No portion of this text may be reprinted for other than personal use. Any commercial use of this

    document is strictly forbidden.

    Contact OSHAcademy to arrange for use as a training document.

    This study guide is designed to be reviewed off-line as a tool for preparation to successfully complete

    OSHAcademy Course 711.

    Read each module, answer the quiz questions, and submit the quiz questions online through the course

    webpage. You can print the post-quiz response screen which will contain the correct answers to the

    questions.

    The final exam will consist of questions developed from the course content and module quizzes.

    We hope you enjoy the course and if you have any questions, feel free to email or call:

    OSHAcademy

    1915 NW Amberglen Parkway, Suite 400

    Beaverton, Oregon 97006

    www.oshatrain.org

    instructor@oshatrain.org

    +1.888.668.9079

    mailto:instructor@oshatrain.org

  • OSHAcademy

    Course 711 Study Guide

    Copyright 2000-2013 Geigle Safety Group, Inc. Page 2 of 51

    Contents

    Course Introduction ..................................................................................................................................... 6

    What is ergonomics?................................................................................................................................ 6

    The Problem ............................................................................................................................................. 6

    An Important Strategy to Solve the Problem .......................................................................................... 6

    Module 1: Defining Ergonomics ................................................................................................................... 8

    Introduction ............................................................................................................................................. 8

    Ergonomics Studies the Interaction among Three Risk Factor Areas ...................................................... 8

    Who is at risk? .......................................................................................................................................... 8

    What are Musculoskeletal Disorders (MSDs)? ........................................................................................ 9

    What are work-related MSDs (WMSD)? ................................................................................................ 10

    The Interaction of Three Risk Factor Areas ........................................................................................... 10

    The Impact of Ergonomics ..................................................................................................................... 10

    More interesting ergonomics statistics ................................................................................................. 11

    Last Words ............................................................................................................................................. 11

    Module 1 Quiz ........................................................................................................................................ 12

    Module 2: Risk Factors Inherent in the Worker ........................................................................................ 13

    The Musculoskeletal System .................................................................................................................. 13

    Age ......................................................................................................................................................... 13

    Gender ................................................................................................................................................... 14

    Physical Activity...................................................................................................................................... 14

    Strength .................................................................................................................................................. 15

  • OSHAcademy

    Course 711 Study Guide

    Copyright 2000-2013 Geigle Safety Group, Inc. Page 3 of 51

    Strength vs. Energy of Work: Which is most important? ...................................................................... 15

    Anthropometry ...................................................................................................................................... 16

    Module 2 Quiz ........................................................................................................................................ 17

    Module 3: Risk Factors Inherent in the Task ............................................................................................. 19

    Risk Factors the Task Brings to the Job .................................................................................................. 19

    Design to Reduce Risk Factors ............................................................................................................... 19

    How much force is required? ............................................................................................................. 19

    You are a lever! ...................................................................................................................................... 20

    Five Force-Related Conditions that May Increase the Risk of Injury ..................................................... 21

    Symptoms of excessive static load .................................................................................................... 21

    Segmental Vibration .............................................................................................................................. 22

    Vibration ............................................................................................................................................ 22

    Whole Body Vibration ........................................................................................................................ 22

    Repetition ........................................................................................................................................... 23

    High Risk Repetition Rates by Different Body Parts .......................................................................... 23

    Duration ................................................................................................................................................. 24

    Recovery Time ........................................................................................................................................ 24

    Posture ................................................................................................................................................... 25

    Velocity/Acceleration ............................................................................................................................. 26

    Heavy Dynamic Exertion ........................................................................................................................ 26

    Module 3 Quiz ........................................................................................................................................ 27

    Module 4: Risk Factors Inherent in the Environment ................................................................................ 30

  • OSHAcademy

    Course 711 Study Guide

    Copyright 2000-2013 Geigle Safety Group, Inc. Page 4 of 51

    Heat Stress ............................................................................................................................................. 30

    Cold Stress .............................................................................................................................................. 30

    Lighting ................................................................................................................................................... 31

    Noise ...................................................................................................................................................... 31

    Psychosocial Risk Factors ....................................................................................................................... 32

    Last Words ............................................................................................................................................. 33

    Module 4 Quiz ........................................................................................................................................ 34

    Module 5: Controlling Risk Factors ............................................................................................................ 37

    Rid the Job of Risk Factors ..................................................................................................