Unit 2: Applying the Three Objectives Together

Why this module matters

It helps learners connect Unit 2: Applying the Three Objectives Together to the broader course path in OSHA Principles of Ergonomics. Learners build working familiarity with Anthropometry, Awkward posture, and Low work posture. The lessons stay grounded in concrete examples and explanations tied to this module's core topics. Learners can check understanding through 12 quiz questions tied to this module.

What this module covers

• Anthropometry
• Awkward posture
• Low work posture
• The three required outcomes of this module—manual lifting, anthropometry, and back injury control—are strongest when integrated rather than treated separately.
• The goal is controlled lifting, designed environments, and repeatable practices that keep force demands within safe limits for the actual workforce performing the work.
• Identify OSHA ergonomics principles and key responsibilities for preventing musculoskeletal injuries in industrial workplaces.

Topical takeaways

• The three required outcomes of this module—manual lifting, anthropometry, and back injury control—are strongest when integrated rather than treated separately.
• The goal is controlled lifting, designed environments, and repeatable practices that keep force demands within safe limits for the actual workforce performing the work.
• If transfer distances are unavoidable, then assisted handling equipment and redesigned flow become mandatory before behavioral coaching can be effective.
• When tasks are repetitive, forceful, hot, awkward, or rushed, small design flaws become cumulative injuries and expensive downtime.
• At the center of OSHA principles, ergonomics is about controlling risk factors built into work systems—tasks, tools, environment, and procedures—so workers are not forced into damaging movement patterns.
• In simple terms, ergonomic risk starts with a mismatch: the physical demands of a job exceed what people can do safely for the duration required.

Lesson arc

1. Integrating Lifting, Fit, and Control (1 min)

   The three required outcomes of this module—manual lifting, anthropometry, and back injury control—are strongest when integrated rather than treated separately.

   • The three required outcomes of this module—manual lifting, anthropometry, and back injury control—are strongest when integrated rather than treated separately.
   • The goal is controlled lifting, designed environments, and repeatable practices that keep force demands within safe limits for the actual workforce performing the work.
   • If transfer distances are unavoidable, then assisted handling equipment and redesigned flow become mandatory before behavioral coaching can be effective.
2. Ergonomics in Hazard Analysis (1 min)

   When tasks are repetitive, forceful, hot, awkward, or rushed, small design flaws become cumulative injuries and expensive downtime.

   • When tasks are repetitive, forceful, hot, awkward, or rushed, small design flaws become cumulative injuries and expensive downtime.
   • At the center of OSHA principles, ergonomics is about controlling risk factors built into work systems—tasks, tools, environment, and procedures—so workers are not forced into damaging movement patterns.
   • In simple terms, ergonomic risk starts with a mismatch: the physical demands of a job exceed what people can do safely for the duration required.

Key concepts

• Anthropometry
• Awkward posture
• Low work posture
• High work posture
• Localized pressure on a body part
• Hand Arm Vibration (HAV)
• Whole Body Vibration (WBV)
• Design for extremes

Practice and assessment

Learners reinforce this module through 12 quiz questions and a supporting glossary covering 8 key terms, with practice centered on The three required outcomes of this module—manual lifting, anthropometry, and back injury control—are strongest when integrated….

Concept glossary

Anthropometry

The measurement of the human individual.

Awkward posture

Postures that occur when the work is too low, too high, or too far away from the worker.

Low work posture

Posture required when low work locations require you to get into an awkward posture to retrieve an object.

High work posture

Posture resulting when work is too high, causing overhead or elbows above shoulders, or requiring tilting head back to look up.

Localized pressure on a body part

Pressing the body part against hard or sharp edges, or prolonged standing and kneeling on hard surfaces.

Hand Arm Vibration (HAV)

Vibration transmitted from vibrating hand tools to the hand, where the hand is most sensitive at 8-16 Hz.

Whole Body Vibration (WBV)

Vibration that may create chronic stress and sometimes permanent damage to the affected organs or body parts.

Design for extremes

Designing adjustability for range of employees when the design basis also results in user-friendly operation for other individuals, including reach, stature, and body width.

Continue to the full course

OSHA Principles of Ergonomics is the parent course for this module. Use the full course page for pricing, certificate details, and the full curriculum.