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9 Cards in this Set

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What is ergonomics?

the science of fitting the task to the worker in order to decrease stress, and increase worker productivity, comfort and safety

what are the different types of risks?

physical- intensity/magnitude of force, duration/repetition, extreme temperatures, and vibration

psychosocial- worker dissatisfaction, unfamiliar work tasks or environment, pace of work (work against a machine, time or coworkers), unsympathetic cow-workers/management

how can risk be reduced?

through 2 different types of controls :

engineering- protection (safety equipment), prevention (changes to work stations, adaptations to tools)

administrative- work practice (mandatory personal safety equipment), training and education (fitness, proper work techniques), workload changes (duration and frequency), policies and procedures (return to work programs) and health/safety committees

Explain musculoskeletal disorder pain

Musculoskeletal pain is pain that affects the muscles, ligaments and tendons, and bones. There is 3 stages:

early stage- pain may disappear after a rest away from work

intermediate stage- body part aches and feels weak soon after starting work and lasts until well after shift

advanced stage: body part aches and feels weak even at rest, sleep is affected, light tasks are difficult on days off

Explain Hand-Arm Vibration Syndrome (HAVS)

A vascular, neurological and musculoskeletal syndrome caused by prolonged exposure to vibration.


vascular- white fingers, cold sensitivity, extreme sweating

neurological- numbness/tingling and reduced sensation

Muscular- reduced grip strength

Skeletal- bone cysts

ADL complaints: cold sensitivity, writing, picking up small objects, opening lids and packages, lifting and carrying


-decreased vibration exposure (micro breaks, antivibration gloves)

-lighter grip on machine

-task rotation

-stop smoking

What are the roles of occupational therapy in ergonomics?

-treatment of acute, subacute and chronic conditions

-return to work planning and training

-pain management

-job site visits

-functional abilities evaluation

Explain the functional abilities evaluation and what are the components of an FAE?

it is an assessment to assess the workers ability to return to their specific job or can be non specific which would assess their general abilities and medical limitations

2 main components:

Written evaluation- includes history, VAS for pain and self perception of ability

testing- standardized lift and carry, sustained grip and pinch, other standardized assessments, endurance testing, work stimulation

what are the different levels of physical demand?

sedentary work- involves exerting up to 10 lbs occasionally (1/3 of the time) and sitting most of the time

light work- involves exerting up to 20 lbs occasionally and or up to 10 lbs frequently, requires standing and sitting but pushing or pulling of arm/leg controls or working at a production rate pace

medium work- exerting 20-50 lbs occasionally, 10-25 lbs frequently and or up to 10 lbs constantly

heavy work- exerting 50-100 lbs occasionally, 25-50 lbs frequently, and 10-20 lbs constantly

very heavy work- exerting 100+ lbs occasionally, 50 lbs frequently, and an excess of 20 lbs constantly

occasional is defined as 1-3 hours

frequent is defined as 3-6 hours

constant is defined as 6-8 hours

explain some of the false beliefs about RTW

- people must do 100% of their job tasks before RTW

- people who are injured need total rest in order to recover

- most people want to stay off work as long as possible

- light duty is an effective way to return people to their full activities