The level III special analysis should be carried out on specific problems which can not be assessed by use of risk assessment on Level II and related problems to work design and musculoskeletal overload.

For this level specific methods an overview is given on specific methods and contact for support is named.

Goals

Risk assessment on extraordinary problems which can not be assessed by use of risk assessment on Level II, e.g.

• Complex and frequently changing tasks
  
• Tasks with very high physical demands and special training
  

The level III special analysis can also be applied when there are work load related problems, e.g.

• Increasing quality deficiencies
  
• Work designing for tasks with high physical demands
  
• Numerous complaints, health problems, sickness and absence
  

Preconditions for use

• Expertise on ergonomics, physiology, biomechanics, and occupational health
  
• Detailed knowledge of work which has to be assessed
  

Tools

• Task analysis
  
• Time and motion study
  
• Gauging of physiological parameters as heart rate, bioelectric muscle activity, oxygen consumption
  
• Gauging of forces
  
• Gauging of environmental data
  
• Biomechanical analysis
  
• Questioning, interviewing
  

Effort

The effort is high in general, it depends on problem structure and consequences for safety, health and economy.

Contact for support

• Inspectors, for special problems: Head office of national inspections for occupational safety and health
  
• Institutes for occupational safety and health
  
• Consulting engineers
  
• College institutes of technology or science
  
• Other companies with similar problems (exchange of experience)