Lesson 4B – Biomechanical Risks

This lesson explains potential physical stressors on operators working in an industrial environment where carrying and lifting objects is required, and how they can be managed and mitigated.

Learning Objectives
  • Explain why L5/S1 is so important
  • Explain how biomechanical models are used by ergonomists
  • Use moments to determine which lifting positions put less stress on L5/S1
  • Use Bloswick’s approximation to estimate the compressive force on L5/S1 for a lifting task
  • Apply the NIOSH Lifting Equation to determine recommended weight limits for lifting
Lesson 4B – Biomechanical Risks Lesson Plan

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* NICE Cybersecurity Workforce Framework KSAs Addressed
  • K0165: Knowledge of risk threat assessment.
  • K0344: Knowledge of threat environments.
  • S0010: Skill in conducting capabilities and requirements analysis.
  • S0038: Skill in identifying measures or indicators of system performance and the actions needed to improve or correct performance, relative to the goals of the system
  • S0134: Skill in conducting reviews of systems.
  • S0171: Skill in performing impact/risk assessments.
  • S0256: Skill in providing understanding of target or threat systems through the identification and link analysis of physical, functional, or behavioral relationships.
  • A0028: Ability to assess and forecast manpower requirements to meet organizational objectives.
  • A0045: Ability to evaluate/ensure the trustworthiness of the supplier and/or product.
* NSA/DHS Center of Excellence (CAE) KUs Addressed
  • Basic Data Analysis
  • Industrial Control Systems

* Most courseware content maps to NIST NICE Cybersecurity Workforce Framework (NCWF) Knowledge, Skills, and Abilities (KSAs) and/or NSA/DHS CAE Knowledge Units (KUs). For more information on KSAs and KUs, please visit:

KSAs: http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-181.pdf

KUs: https://www.iad.gov/NIETP/documents/Requirements/CAE-CD_2019_Knowledge_Units.pdf