laboratory ergonomics risk management services sumith wijeweera industrial hygienist university of...
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Laboratory Ergonomics Risk Management Services
Sumith WijeweeraIndustrial HygienistUniversity of Arizona
October 3, 2014
Ergonomics Basics
The study of fitting the job to the individual Match the design of tools, controls, and equipment to
fit the needs of the userPoor design and poor working practices can lead to
musculoskeletal disorders (MSDs) Ex: carpal tunnel syndrome, trigger finger, sciatica, etc.
Injuries are most likely to occur when people work in awkward postures or using repetitive motions for an extended amount of time
Minimize Risk Factors
• The most prominent ergonomics risks are:
• Forceful exertions• Repetitive motions• Awkward postures• Static postures• Cold temperatures• Compression/contact stress• Poor lighting• Vibration
Boost your Lab Ergo IQ
1. Start with proper attire. Shoes: cushioned sole, closed toes and heels, impervious material Loose-fitting clothing may interfere with work
2. Pay attention to posture. Keep feet flat (adjust height or use footrest) Keep your back straight
Boost your Lab Ergo IQ
4. Embrace the mini break to avoid fatigue. Plan short breaks into your day after 20 minutes at any task or
any time you are doing a repetitive task Quick mini breaks (2-3 minutes) or changing tasks
5. Reduce contact stressors Pad sharp edges or provide arm supports
6. Be mindful of work zones Arrange frequently used items to minimize reaching
Neutral & Awkward Posture
Neutral posture is a position that puts no stress on the body; positions that induce stress are awkward postures
Cumulative stress over time can lead to injury or musculoskeletal disorders.
Arm Strength = Neutral Posture
Hand Posture
Posture
Microscopes
Awkward
Neutral
Standing
Foot rests Floor mats
Standing – Bench Height
Typical laboratory bench height is ~ 94cm
Optimal Work Zone
Sitting
Desk cut-outs allow you to be closer to the work zoneKeep cut-outs free of clutter
Chairs
Chairs should be adjustable in order to fit a wide variety of employees
Lab Hoods
Relaxed posture reduces stress on the workerElbow/Arm padding to reduce contact stressAngled containers reduce reaching
Pipetting
Awkward Neutral
Neutral Posture When Pipetting
Pipet Safety & ergonomics
Pipetting
Angled bottle rests and waste containers reduce reaching
Laboratory PPE
Consider a shoe cover dispenser to reduce stretching when donning PPE for a clean room or BSL-3 area http://www.youtube.com/watch?v=x2vPV-z234A