Ergonomics

Applications for Ergonomics Home & Leisure ServiceOffice Manufacturing Manufac- turing

Safety, Quality, & Efficiency

Principles of Ergonomics

Work in Neutral Postures Principle 1

Maintain the “S-Curve” of the Spine

The Neck

Keep Elbows in and Shoulders Relaxed

Keep Wrists in Neutral

Summary — Neutral Postures Neck straight Shoulders relaxed Elbows at sides Wrists in neutral Back with S-curve

Point: To work smarter, work in neutral postures Evaluate and modify: –work method –tools –workstation design

Reduce Excessive Force Principle 2

Point: Think of what you do. Think of ways to reduce excessive force. Thousands of ways, only some examples here.

Keep Everything in Easy Reach Principle 3

Reach Envelope

Work at Proper Heights Principle 4

Height elbow drawing Most work at elbow height (sitting or standing) Most work at elbow height (sitting or standing)

Height elbow hi/lo drawing Exceptions: Heavy = lower Precision = higher Exceptions: Heavy = lower Precision = higher

Reduce Excessive Motions Principle 5

AfterBefore

Minimize Fatigue and Static Load Principle 6

Minimize Pressure Points Principle 7

Provide Clearance Principle 8

Move, Exercise, Stretch Principle 9

Maintain a Comfortable Environment Principle 10

Lighting and Glare

Vibration Dampening Material

Summary Posture Force Reach Heights Motions Static load Pressure points Clearance Stretch & exercise Environment

Putting on Your Ergonomics Glasses

Making Improvements

Fix and Adjust What You Can Yourself

Think Before You Work

Make Ergonomics Part of Daily Worklife

Cumulative Trauma Disorders (CTDs) “Wear and tear” that accumulates thru time

Symptoms Soreness, pain, discomfort Numbness or burning “Pins and needles” Limited range of motion Weakness and clumsiness

Basic Message to Everyone: If you think you may have a problem Get it checked out

Risk Factors for CTDs Awkward Postures Force Repetitive Motions Static Load Pressure Points Vibration Temperature Extremes (Tasks)

Risk Factors for CTDs Physical Condition Diseases and Conditions (Personal)

Prevention Apply what you learn here

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 TeamErgo Surveys Plans etc