Domain 3 Flashcards
MusculoskeletalDisorders (MSDs)
Affect the muscles, nerves, blood vessels, ligaments, and tendons. Largest category of workplace injuries
Cumulative Trauma Disorders
Work-related injuries associated with risk factors such as repetitive motion, contact stress, and awkward or sustained positions
Epicondylitis
Inflammation of an epicondyle (projection of bone above a condole, bone to bone, where tendons and ligaments are attached). Examples are tennis elbow or golfer’s elbow
Symptoms Survey
Surveys employees about pain or discomfort related to a specific job or task. Used to help focus attention on jobs or tasks that may lead to MSDs and to act before injuries occur
Ergonomics Survey
A process used to evaluate the risk of MSDs due to a mismatch between workplace design and employee capabilities
Anthropometry
The study of measurements and proportions of the human body
Ergonomics
The study of people’s efficiency in their work environment
Kinesiology
The study of movement
De Quervain’s Disease
Painful condition affecting the tendons on the thumb side of the wrist
Carpal Tunnel Syndrome
Caused by pressure on the medial nerve. Can result in tingling or numbness in fingers, weakened grip, etc.
Raynaud’s Syndrome
Condition that causes the blood vessels in the extremities to narrow, restricting blood flow. Also known as white finger disease
NIOSH Lifting Equation
RWL = LC X HM X VM X DM X AM X FM X CM
LC - Load constant
HM - Horizontal distance of hands from midpoint between ankles
VM - vertical distance of hand from the floor
DM - Vertical travel distance of between origin and destination
AM - angular displacement of the load from the Sagittarius plane in degrees
FM - average frequency of lifts per minute
CM - coupling or handle adequacy
Flexion
A body movement that decreases the angle between two body parts
Extension
Movement that increases the angle between two body parts
Abduction
Movement away from the body. Think hip abductor machine in the gym
Adduction
Movement towards the body. Think squeezing legs together
Composite Lifting Index
Determines the additive effect of several tasks and is obtained by ranking the tasks in decreasing order of physical difficulty as indicated by the single task lifting index of each task. Better estimates the risk associated with multi-tasks manual lifting
Frequency Independent Recommended Weight Limit (FIRWL)
Compressive force and manual strength required for a single rep of a task
Single Task Recommended Weight Limit (STRWL)
Overall demand of one task associated within the job
Lifting Index
Estimate of the level of physical stress associated with a lifting task
LI > 1 = hazardous and controls should be implemented
Acclimatization
The process of result of becoming accustomed to a new climate or conditions
Heat Exhaustion
Heat illness associated with the body overheating
Heat Illnesses (Least to Most Severe)
- Heat stress
- Heat exhaustion
- Heat stroke
Rapid Entire Body Assessment
Used to assess static, rapidly changing and unstable postures. Assess handling loads
Rogers Muscle Fatigue Analysis
Studies physiological massless fatigue at different effort levels and holding times. Muscular effort in relation to recovery time
Moore-Garg Strain Index
Method of evaluating jobs to determine if they expose workers to increased risk of developing MSDs of the upper extremity
Rapid Upper Limb Assessment
Qualitative assessment used to assess posture, force and movement associated with tasks where the worker is seated or standing without moving about
Work Hardening
A process that is designed to restore the employee’s physical capacity and functional abilities after an injury
Job Rotation
Having employees rotate tasks that use different body segments or different frequency/forces
Restricted Duty
Medical term indicating that an employee may return or work under specific guidelines or restrictions
Fit for Duty Exam
Exam to determine if employees are ready to return to work
Trench Foot
Caused by prolonged exposure to a cold temperature that usually above freezing and damp, sometimes unsanitary conditions
Tenosynovitis
Inflammation of the tendon sheath where muscle connects to bone
Trigger Finger
Occurs due to repeated and prolonged use of the trigger finger
Thoracic Outlet Syndrome
When blood vessels or nerves in the space between your collarbone and your first rib (thoracic outlet) are compressed
Illuminance
The amount of light falling onto a given surface area
Luminance
The intensity of light emitted from a surface
Lux
Measure of illuminance, the total amount of light that falls on a surface
Lumens
Measures the amount of light that is emitted by a single light source, and in all directions
Candela
The international system of units (SI) measure of luminous intensity
1 Candela = 1 Lumen
Workplace Wellness Program (WWP)
Proactive activities companies take to prevent injury/illness or to detect illnesses early to improve recovery
Future of Work (FOW)
Identify new research solutions, practical approaches, and partnership opportunities to address the future of work
Prevention through Design (PtD)
To prevent or reduce occupational injuries, illness, and fatalities through the inclusion of prevention considerations in all designs that impact workers
Total Worker Health
Prioritizes a hazard-free work environment for all workers
Biomechanical Assessment
Involve measuring the forces applied to body parts under certain loads
Psychophysical Assessment
Study acceptable weight limits for manual lifting, pushing, and pulling tasks
Physiological Assessment
Measure body functions when performing specific tasks
Permissible Exposure Levels for Noise
90 dBA for an 8-hour day
85 dBA action level
Snook Table
Offer guidelines for assessing and designing manual load handling tasks while taking into account workers’ limitations and capabilities. Helps reduce the occurrence of lower back injuries.
Continuous Control
Classification of controls that allow different levels of information to be provided to the system via the operator, such as speed, light level, pressure, and flow rate
Discrete Control
Controls that provide fixed levels of information (on and off) such as light switch, limit switch, or GFCI
Action Control
Control that requires specific actions to initiate or stop. Rotary crank, wheel, and push/pull
Display Control
Control used with monitors such as computer screens, control screens, and tablets
