Presentation on theme: "You can do a job the hard way…."— Presentation transcript:
1You can do a job the hard way…. Why Ergonomics?Ergonomic principles are applied for 3 reasons:Prevent you from being injuredOptimize your productivityIncrease your comfort at home and at playYou can do a job the hard way….…or the easy way
2Report Discomfort & Injury Report Concerns:If you experience any discomfort beyond expected fatigue while at work you should notify your supervisor as soon as possible.Ignoring symptoms won't make them go away! Seek help early.Most ergonomics-related injuries are avoidable if corrective actions are taken early!
3DiscomfortYour body will give you warning signs when you experience physical stressPay attention to these warnings and take action to resolve the problem before it gets worseNew activity muscle sorenessOccurs when a muscle is not sufficiently prepared to perform an activity and typically occurs within hours of the activityMay last for up to five days and typically does not require medical interventionGenerally treated with an over-the-counter pain reliever
4Ergonomics-Related Injuries If not corrected early the source of pain and discomfort may result in a Musculoskeletal Disorder (MSD) result over timeMusculoskeletal Disorder (MSD) is a disorder (injury/illness) of the muscles, nerves, tendons, ligaments, joints, cartilage, blood vessels, or spinal discsSigns Include: Decreased range of motion, decreased grip strength, loss of muscle function, pain, and discomfortRemember, if you experience any discomfort beyond expected fatigue while at work notify your supervisor.
5Rest and RecoveryYour body requires rest and time to recover from physical stressEnsure that you get sufficient restTake your scheduled work breaks during your shiftGet adequate rest when you are away from workYou’re the best judge of how much rest is needed since some people need more rest than othersOverall health improves recovery time from physical stress so maintain a healthy lifestyle
6Neutral PositionIn ergonomics, the term “neutral position” is often used.It is easy to understand – it is the position where your body is in its most natural position.There are different neutral positionsfor your arms, legs, wrists, head, etcwhen you are standing and sittingLet’s take a look at some of them
7Keep Your Wrists Straight Muscles providing grip strength are located in the forearm and are connected to the fingers by tendons, which pass through the wristBending the wrist creates friction when these tendons move, therefore more muscle work is required to grip an object when the wrist is bentBending your wrist reduces your potential grip strength (try gripping an object and then bending your wrist)If you do too much work with your wrists bent friction can irritate the carpal tunnel in the wrist, causing it to swell and create a painful condition
9Neutral Position - Sitting Your natural position when sitting is shown in this depiction. We’ll come back to this when we review how to adjust a workstation.Noticethe arms and thighs are parallel to the floorthe feet extend out from the body slightlythe back is straightLine-of-sight is slightly down
10Avoid Static Postures - Move Maintaining a static posture for extended periods results in reduced blood circulation in the muscles, which can lead to fatigue and discomfortYou can lift more weight than you can hold steady for an extended periodVary your posture throughout the day to increase your comfort and reduce fatigueYour body is built to move – not for staying stillStatic muscle work requires longer recovery times than dynamic (active) workSuggestionRest break activity should use different muscle groups than work activities. If you sit while working, try walking around during your break; if you walk a lot on the job, try sitting
11Fight Fatigue Take periodic rest breaks Rest breaks are more effective if you take them before you are tiredStretch periodicallyStretching can reduce fatigue and increase your comfortStretching muscles before an activity prepares them for the work at handStretching also reduces mental and physical stress and is enjoyable and relaxing
12Ergonomic Controls Engineering Controls Administrative Controls Ergonomics controls can be categorized as follows:Engineering ControlsPhysical work area changesAn example is adjusting a computer desk height so the wrists are straight while typingAdministrative ControlsChanges in the job or taskAn example is having two people share a typing taskPersonal ControlsChanges in work habits or techniquesAn example is a taking periodic stretch breaks or using an improved technique
13ERGONOMICS APPLICATIONS We’ve learned some ergonomics principles, now let’s see how we can apply these principles to optimize your comfort and productivity while at work and home.
14Work SmartIdentify potential risks before performing a job and eliminate or control the hazard(s)A little planning goes a long wayWork smarter, not harderKnow when a task is beyond your capabilitiesAsk your supervisor or a co-worker for assistanceUse work techniques that minimize physical stressCheck with your supervisor, training group, or co-workers
15Work Smart: Tools and Devices Use the right tool for the task at handMake sure tools are in good working conditionIf they’re not, notify your supervisorUse lift devices or carts when appropriateTake the time to get and set up the appropriate lifting deviceMake workstation or tool adjustments, if appropriateAdjust your chairArrange your workstation
16Workstation Adjustment Your computer workstation should be set up so you are working in approximately a neutral postureThe next slides will show you how to do this
17Computer Workstation: Chair Adjust chair seat pan height so that your feet are flat on the floor and your thighs are parallel with the floor
18Computer Workstation: Keyboard Adjust the keyboard so it is approximately at the same height as your elbowA mouse or trackball should be set at approximately the same levelEither adjust your work surface height or use an adjustable keyboard tray
19Computer Workstation: Fixed Work Surface If the height of your work surface cannot be adjustedraise your chair so your wrist are straight while typing anduse a footrest to support your feet.If your wrists are bent as shown in the picture, your workstation is not adjusted correctly.
20Computer Workstation: Monitor Adjust monitor height so that the top of the display is at or below eye levelTo raise the display height, place blocks or phonebooks under the monitorTo lower a display, remove a desktop computer or docking station from under the monitorTilt the display downward slightly to reduce glare from overhead lights
21Computer Workstation: Layout Arrange your work area so items used most often are close - avoid overreachingFrequently used items, such as a keyboard or mouse, should be accessible without moving your armsInfrequently used items, such as a telephone or calculator, should be placed within a comfortable reachVery infrequently used items, such as books, should be placed so that you can reach them without straining yourself
22MATERIAL HANDLING OVERVIEW When lifting, moving, pushing or pulling -Know your limitsask for help if neededPlan your moveStagger your feet for stabilityBend your kneesTighten your abdominal muscles when liftingMaintain the natural “S” curvature of your spine when lifting
23Material Handling: Back Stress Reduce back stress by keeping materials close to your body when lifting and carrying themStore frequently used items near elbow heightStore infrequently used items between knee and shoulder heightMaintain the natural curvature of your spine when liftingPoor back posture can increase back stress
24Material Handling: Twisting Twisting while lifting places extra stress on your back and requires extra workWhen you twist, your lifting capabilities are reducedAvoid twisting while lifting objectsUse your feet to turn, not your backAdjust work areas to avoid twisting
25Safe Lifting Practices Plan your moveBefore lifting the object, size up the loadIf it’s too heavy, ask for helpPrepare for liftingGet close to the objectGet firm footing and a good grip on the object before liftingStart the liftTighten your abdominal muscles before liftingMaintain the natural curves in your back when liftingLift with your legs so the large leg muscles do the workKeep the load close to your bodyDon’t twist, use your feet to turnReverse the lifting procedure when setting down objectsreverse the lifting procedure when setting down objectslowering an object places stress on your back too.In many cases the risk is even greater because you are trying to be precise when setting it down.
26Pushing and Pulling Avoid Yes! Pulling or pushing an object is usually better than carrying itGenerally, you are stronger when pushing an object than when pulling itAvoid twisting while pushing and pulling items since twisting while performing tasks places extra stress on the backGenerally, carts are easier to steer once they are movingAvoidYes!*Note: This does not apply to very large carts that you can not see over
27You can do a job the hard way…. Why Ergonomics?Remember the 3 reasons for Ergonomics:Prevent you from being injuredOptimize your productivityIncrease your comfort at home and at playYou can do a job the hard way….…or the easy way