ERGONOMICS FOR THE 21 ST CENTURY OFFICE OF RISK MANAGEMENT LOSS PREVENTION UNIT.
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Transcript of ERGONOMICS FOR THE 21 ST CENTURY OFFICE OF RISK MANAGEMENT LOSS PREVENTION UNIT.
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ERGONOMICS FOR THE 21ST CENTURY
OFFICE OF RISK MANAGEMENT
LOSS PREVENTION UNIT
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PRE-TEST
What is ergonomics?
What are MSDs?
What are symptoms of MSD?
How can I evaluate my workplace?
What are some ergonomic solutions?
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COURSE OBJECTIVES
Define ergonomicsEstablish ergonomics in the workplaceIntroduce basic skills in the recognition & control of occupational ergonomic hazardsIntroduce ergonomic exercises.
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PROGRAM GOAL
To minimize injuries due to chronic physical and psychological stresses,
while maximizing productivity and efficiency
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ERGONOMICS DEFINED
Ergonomics is the science of fitting the job to the worker.
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BIOMECHANICS
The science of measuring the amount of force put on the
muscles and joints of people when working in different positions.
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BIOMECHANICS CONT.
STATIC - Holding one object or body part in one position for an extended period. EX. Standing or sitting in a parking booth or at a microscope.
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BIOMECHANICS CONT.
DYNAMIC - An activity created by the rhythmic contraction and relaxation of the muscles. EX. Walking
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DID YOU KNOW?As early as the 1700’s scientists were aware of repetitive movement injuries to workers.
Bernardino Ramazzini (1633-1714)ClerksCobblers and tailorsPorters
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ERGONOMIC STUDY AREAS
WORKERS - what they bring to the job
TOOLS - what they bring to the worker
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ERGONOMIC STUDY AREAS
TASKS - what the worker must do
ENVIRONMENT- the conditions
surrounding the worker and the tool
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ERGONOMIC FOCUS
The ToolThe Task
The Work Station and Environment
The User /Operator
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RESULTING INJURIES ARE CALLED:
Cumulative Trauma Disorders (CTD),
Or
Repetitive Strain Injuries (RSI),
Or
Musculoskeletal Disorders (MSD)
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HOW SERIOUS ARE MSD
MSD account for:1/3 of all lost day injuries each yearThese injuries cost business $15-20 billion
in worker’s compensation each year
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COMMON CAUSES:
Repetitive and/or prolonged activitiesAwkward postures/positions for an extended timeStatic posturesVibrationHigh/low Temperatures for an extended timeForceful exertions
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ERGONOMIC STRESS AREAS
Knee
Hip
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SIGNS OF MSD
Decreased range of motion
Loss of function
Deformity
Cramping
Loss of color
Decreased grip strength
Loss of balance
Swelling
Redness
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SYMPTOMS OF MSD
Muscle fatigue or pain
Aching
Burning
Numbness
Stiffness
Tingling
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EXAMPLES OF MSD
TENDONITIS- An inflammation of the tendon. Typically occurs in the shoulder, wrist, hands, or elbow.
CARPAL TUNNEL SYNDROME- Irritation of the median nerve, which runs through a bony channel in the wrist called the carpal tunnel. Usually results from excessive flexing or twisting of the wrist.
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CARPAL TUNNEL SYNDROME
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MSD CONT.
TRIGGER FINGER SYNDROME- Tendons in the fingers become inflamed, causing pain, swelling, and a loss of dexterity.
EYE STRAIN - The eyes become strained as a result of poor lighting, glare or viewing from awkward positions.
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MSD CONT.
HAND/ARM VIBRATION SYNDROME- Tingling, numbness, blanching, loss of dexterity in the hand/arm
MUSCLE STRAIN – Pain in muscles
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VIDEO
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WHAT CAN WE DO?
Administrative controls
Work practice controls
Engineering controls
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ADMINISTRATIVE CONTROLS
Employee rotation/job task expansion
Physical adjustments to the work pace
Redesign of work methods
Alternative tasks
Breaks
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WORK PRACTICE CONTROLS
Safe & proper work techniques & procedures
Training
Physical conditioning period
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POSTURE & ANGLES
Whether your tasks are performed while
sitting or standing, always maintain proper posture & angles--and avoid:
Awkward positions, and
Extreme reaches for materials
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BODY ANGLES
HEAD
SHOULDERS
ELBOWS
HANDS
WAIST
LEGS
FEET
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SITTING POSTURES
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MORE ANGLES…
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MORE ANGLES…
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ENGINEERING CONTROLS
Workstations
Tools/equipment
Facilities
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WORKSTATIONS
The objective is to:
Fit the workstation to the employee
Reduce awkward positions
This can be done by using two methods:
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WORKSTATIONS CONT.
Standard WayAdjustable
workstationAdjustable chairFoot restsAdjustable
monitorDocument holder
Innovative WayCut legs offAdd blocksBuild foot restThick bookBuild platform
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TOOLS
Use of Force or of grip-strengthLonger/shorter and thicker/thinner handles
Repetitive motionRatcheting mechanism or gearsPower tools
Electric staplerElectric knifeSpring-loaded returns
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TOOLS CONT.Awkward positionsBent or curved handlesExtensions or add-onsHeadphonesSupport equipment overheadStep stool
Forceful exertionsSoft-touch keyboards/buttonsLifting devices
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TOOLS CONT.
Static positionsAnti-fatigue mats
VibrationAnti-vibration materialsAnti-vibration mounts/handlesExternal supportAnti-vibration gloves
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FACILITIES
Lighting/glare
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FACILITIES
Temperature
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FACILITIES
Noise
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EXERCISES & STRETCHES
These are exercises or stretches that can be performed at your workstation, home, just about anywhere.
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EYE
Eye comfort exercisesBlinkingYawningFocus change
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EYEPalming
While seated, brace elbows on the edge of the deskLet weight fall forwardCup hands over eyes and close eyesInhale slowly through nose & hold for 4 secondsContinue deep breathing for 15-30 seconds
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EYEMovements
Close eyes and slowly & gently move eyes up to the ceiling, then slowly down to the floor
Repeat 3 times
Close eyes and slowly & gently move eyes to the left, then slowly to the right
Repeat 3 times
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NECK STRETCH
Tilt ear towards shoulder
Reach up and touch top of head with palm to hold in tilted position
Hold 5-10 seconds. Repeat 2-3 times (come out of stretch slowly)
Reverse side and repeat
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Pec Corner StretchStand at a corner about a foot away from the wall with forearms on opposite sides of the corner. One foot should be forward.Elbows should be at slightly below shoulder heightKeep abdominals tight to avoid arching backLean gently towards corner by bending the front knee until a stretch is felt in front of the chest.Hold 5-10 seconds. Repeat 2-3 times
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Overhead Reach
Take a deep breathe and reach up over head with both arms.
Hold 5-10 seconds
Exhale and lower slowly
Repeat 2-3 times
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Shoulder Pinch
Place arms behind head being careful not to press hand into head
Relax shoulders, and squeeze shoulder blades together while keeping shoulders back and down
Hold 5-10 seconds. Repeat 2-3 times
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Shoulder Shrug
Sitting up straight, slowly bring shoulders up toward your ears.
Hold positions 5-10 seconds
Then bring the shoulders down and hold
Repeat 2-3 times
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Chair Rotation Stretch
Sit in chair and place feet flat on floor
Reach across your body and grab the back of the chair
Pull gently to increase stretch in mid back
Hold 5-10 seconds. Repeat 5 times
Repeat on other side
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Arms Behind Back Stretch
Hold hands behind back and grasp hands together
Pull shoulder blades back and down
Hold 5 seconds. Repeat 5 times
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Thoracic Spine Extension Stretch
Lie on your back with a pillow under your knees. Place a firmly rolled towel under your shoulder blades across your upper backRaise arms up as you inhaleLower arms as you exhale, and hold a couple of secondsDo this 5 times
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Prop Ups or Press Ups
Lie on stomach and either prop up on forearms or if wrists are not compromised, press up through hands.Let stomach sag, and allow back to arch without using back muscles.If propped on elbows, hold 5-10 seconds. Repeat 5 timesIf on hands, press up and down slowly 10 times
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Foot Rotations
While sitting upright, slowly rotate each foot from the ankles 3 times in one direction
Then rotate 3 in the opposite direction
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Wrist Flexed & Extended Hold arm straight at waist height
With fingers of other hand, gently press down above the knuckles, bending wrist down. (DO NOT hold at the fingers to push down.)
Hold 5-10 seconds and repeat 2-3 times
For extending, hold onto palm of hand and stretch wrist back. (DO NOT pull on fingers.)
Hold 5-10 seconds and repeat 2-3 times.
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Finger Massage
VERY gently, massage the fingers of each hand individually.
Move toward the nail gently.
Massage the space between your fingers to widen and relax
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Finger Squeeze
Squeeze a foam block OR the edge of your desk firmly with all fingers
Hold for 3 seconds
Relax your grip
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ERGONOMICS PROGRAM
Essential elements:Management Leadership and employee
participationHazard information and reportingJob Hazard Analysis and ControlTrainingMSD ManagementProgram evaluation
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ERGONOMICS POST TESTERGONOMICS POST TEST
What three types of controls can we implement as solutions for ergonomic problems?
What three types of controls can we implement as solutions for ergonomic problems?
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ERGONOMICS POST TESTERGONOMICS POST TEST
What three types of controls can we implement as solutions for ergonomic problems?
List three (3) examples of environmental conditions that affect
employees.
List three (3) examples of environmental conditions that affect
employees.
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ERGONOMICS POST TESTERGONOMICS POST TEST
What three types of controls can we implement as solutions for ergonomic problems?
List three (3) examples of environmental conditions that affect
employees.Posture is not important in regards to ergonomics. T
or FPosture is not important in regards to ergonomics. T
or F
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ERGONOMICS POST TESTERGONOMICS POST TEST
What three types of controls can we implement as solutions for ergonomic problems?
List three (3) examples of environmental conditions that affect
employees.
Posture is not important in regards to ergonomics. T or F
What does MSD stand for?What does MSD stand for?
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ERGONOMICS POST TESTERGONOMICS POST TEST
What three types of controls can we implement as solutions for ergonomic problems?
List three (3) examples of environmental conditions that affect
employees.
Posture is not important in regards to ergonomics. T or F
What does MSD stand for?
Two examples of MSDs are, Tendonitis and Carpal Tunnel Syndrome. T or F
Two examples of MSDs are, Tendonitis and Carpal Tunnel Syndrome. T or F
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ERGONOMICS POST TESTERGONOMICS POST TEST
What is ergonomics?What is ergonomics?
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ERGONOMICS POST TESTERGONOMICS POST TEST
What is ergonomics?
List three (3) signs of MSD.List three (3) signs of MSD.
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ERGONOMICS POST TESTERGONOMICS POST TEST
What is ergonomics?
List three (3) signs of MSD.
Ergonomics study areas include the worker and tools. T or F
Ergonomics study areas include the worker and tools. T or F
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ERGONOMICS POST TESTERGONOMICS POST TEST
What is ergonomics?
List three (3) signs of MSD.
Ergonomics study areas include the worker and tools.
When focusing on the tool, the task and the environment you are trying to find the best
combination for the worker (user/operator). T or F
When focusing on the tool, the task and the environment you are trying to find the best
combination for the worker (user/operator). T or F
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ERGONOMICS POST TESTERGONOMICS POST TEST
What is ergonomics?
List three (3) signs of MSD.
Ergonomics study areas include the worker and tools. T or F
When focusing on the tool, the task and the environment you are trying to find the best combination for the worker (user/operator). T or F
How can I evaluate my workplace?How can I evaluate my workplace?
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QUESTIONS