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Ergonomics. Applications for Ergonomics. Manufac-turing. Home & Leisure. Manufacturing. Service. Office. Safety, Quality, & Efficiency. Principles of Ergonomics. Principle 1. Work in Neutral Postures. Maintain the “S-Curve” of the Spine. The Neck. Keep Elbows in and Shoulders Relaxed.

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Applications for ergonomics

Applications for Ergonomics


Home & Leisure




Safety quality efficiency

Safety, Quality, & Efficiency

Principles of ergonomics

Principles of Ergonomics

Principle 1

Principle 1

Work in Neutral Postures

Maintain the s curve of the spine

Maintain the “S-Curve” of the Spine

The neck

The Neck

Keep elbows in and shoulders relaxed

Keep Elbows in and Shoulders Relaxed

Keep wrists in neutral

Keep Wrists in Neutral

Summary neutral postures

Summary — Neutral Postures

Neck straight

Shoulders relaxed

Elbows at sides

Wrists in neutral

Back with S-curve



  • To work smarter, work in neutral postures

  • Evaluate and modify:

    • work method

    • tools

    • workstation design

Principle 2

Principle 2

Reduce Excessive Force



  • Think of what you do.

  • Think of ways to reduce excessive force.

  • Thousands of ways, only some examples here.

Principle 3

Principle 3

Keep Everything in Easy Reach

Reach envelope

Reach Envelope

Principle 4

Principle 4

Work at Proper Heights

Height elbow drawing

Height elbow drawing

Most work at

elbow height

(sitting or standing)

Height elbow hi lo drawing

Height elbow hi/lo drawing


Heavy = lower

Precision = higher

Principle 5

Principle 5

Reduce Excessive Motions

Ergonomics 1360253



Principle 6

Principle 6

Minimize Fatigue and Static Load

Principle 7

Principle 7

Minimize Pressure Points

Principle 8

Principle 8

Provide Clearance

Principle 9

Principle 9

Move, Exercise, Stretch

Principle 10

Principle 10

Maintain a Comfortable Environment

Lighting and glare

Lighting and Glare



Dampening Material



  • Posture

  • Force

  • Reach

  • Heights

  • Motions

  • Static load

  • Pressure points

  • Clearance

  • Stretch & exercise

  • Environment

Putting on your ergonomics glasses

Putting on Your Ergonomics Glasses

Making improvements

Making Improvements

Fix and adjust what you can yourself

Fix and Adjust What You Can Yourself

Think before you work

Think Before You Work

Make ergonomics part of daily worklife

Make Ergonomics Part of Daily Worklife

Cumulative trauma disorders ctds

Cumulative Trauma Disorders (CTDs)

“Wear and tear” that accumulates thru time



  • Soreness, pain, discomfort

  • Numbness or burning

  • “Pins and needles”

  • Limited range of motion

  • Weakness and clumsiness

Basic message to everyone

Basic Message to Everyone:

If you think you may have a problem

Get it checked out

Risk factors for ctds

Risk Factors for CTDs


  • Awkward Postures

  • Force

  • Repetitive Motions

  • Static Load

  • Pressure Points

  • Vibration

  • Temperature Extremes

Risk factors for ctds1

Risk Factors for CTDs


  • Physical Condition

  • Diseases and Conditions



  • Apply what you learn here

What you can do

What You Can Do

  • Request help for any problems

  • Be willing to try new methods

  • Know what’s adjustable

  • Get it checked out

  • Exercise and keep in shape

  • Think about off-the-job activities

  • Learn more about ergonomics

Activities at this site

Activities at This Site

  • TeamErgo

  • Surveys

  • Plans

  • etc

  • Login