Ergonomics Flashcards
Injuries associated with MSDs
muscle strains
ligament sprains
inflammation
Stretch or tear of a ligament
Sprain
Injury to muscle or tendon
Strain
What connects bone to bone?
Ligaments
What connects muscle to bone?
Tendons
What is CCPE?
College of Certified Pro Ergonomists (Can)
What is BCPE?
Board of Certified Pro Ergonomists (US)
When does a work related injury occur
Work Demands > Tissue Threshold
define ergonomics
the science of work
Risks of vibrations
stretch ligaments
reduce muscle strength
reduce blood flow
ergonomics root language
greek
recognize most ergonomic injuries
accute or repetitive
What is a simple definition of Ergonomics?
“Design for human use”
What is the main principle for Ergonomics?
Fitting the task to the human
What is ACE?
Association of Canadian Ergonomists?
What is IEA?
International Ergonomists Association
Ergonomics is derived from the Greek words “ergon” and “nomos” which means what?
“Work” and “laws”
What are RMI’s
Repetitive Motion Injuries
What are MSD’s
Musculoskeletal Disorders
What are WMSD’s
Work-place musculoskeletal disorders
WHat are the provinces that have enforceable legislation regarding ergonomics?
BC, AB, SK, Man,
NWT and Nunavut (mining act only)
Approx how many ergonomic standards exist across the western world?
21
What is one of the most influential ergonomics standards in the world?
ISO 9241 The Ergonomics of Human-System Interaction
What are generally the two types of classifications of musculoskeletal injuries?
Acute (rapid onset) or cumulative
True or false… acute musculoskeletal injuries typically involve a single point in time where the demands exceed the capacity of the body
True
Muscles do what
Contract to create movement
Bones do what in respect to load?
Bear the weight of the load
Provides friction and cushioning between bones
Cartilage
What communicates between the brain and the musculoskeletal system
Nerves
What brings nutrients and removes waste products from the musculoskeletal system
Blood vessels
It is generally accepted that what percentage of the population will experience lower back pain at least once in their lifetime?
80%
What is the discipline that focuses on body structures?
anatomy
What is the study of human body measurements?
anthropometry
What is the discipline that seeks to understand the functions of living organisms?
physiology
What discipline deals with the mechanical laws related to human movement?
biomechanics
Muscles make up about what percentage of total body weight?
40%
What field describes and assesses human movement
biomechanics
What is considered postures outside of neutral
Awkward postures
The “balance of ergonomics at work” involves adjusting two main factors:
job demands and worker capabilities
Muscle effort can be classified in two categories:
static or dynamic
The time variation of a musculoskeletal load
repetition
The magnitude and intensity of the load that muscles must exert
force
The physical impact from ____ can stretch ligaments, reduce muscle strength, and restrict blood flow
vibration
