3. Bartender Information
•Previous jobs: Construction, plumber, lifting boxes in Macy’s stockroom
•Prior Health Conditions?: No
•Past Injuries: Right Anterior Cruciate Ligament tear, snapped Achilles' heel, dislocated shoulder,
strained nearly all joints, concussions from sports
• Broken: Wrist, ribs 6x, shin
•Sports: Snow/Skate/Longboarding, Basketball, Baseball, Football, Freejumping
•Exercises: Cardio, sit-ups, push-ups, walking; 3-4 times a week
4. Common Bartending Tasks
•Pouring drinks from bottles or nozzle
•Stock liquor
•Lifting boxes and ice containers
•Replace kegs (160 lbs)
•Reaching overhead or under for mugs
•Lift ½ gallon, 8-10 lb bottles (Hardest task)
5. Discomfort and Stress
•Standing for 6 hours
•Walking around for a total of 2 miles
•Glasses and kegs at low temperatures
•Pain in
• Waist down: Feet, knees, legs
• Voice
•Stress: Busy night shifts, pouring complex drinks, pouring 60 beers in 10 minutes, problematic
customers, coworkers (as well as maintaining multiple relationships with them)
•Break: Once every 2 and a half hours, 5 minutes at a time
8. General Risk Analysis Checklist
•Manual Material Handling
• Lifting, lowering, and overheard reaching of loads, tools, or parts
•Physical Energy Demands
• Tools may weight more than 10 lbs
• Lifting, lowering, pushing, and pulling loads is a primary task activity
•Other Musculoskeletal Demands
• Frequent, repetitive motions
• Work postures require bending of various body parts (neck, shoulder, wrist, etc)
• Finger-pinch gripping
• Sustained muscle contractions
9. General Risk Analysis Checklist (cont.)
•Computer Workstation
• Non adjustable desk
• Irritating vibration or noise
•Environment
• Hands exposed to temperatures less than 70 degrees Fahrenheit
• Poorly lit
•General Workplace
• Slippery walkway
•Tools
• Handles prompt bending of the wrist
• Materials over 9 lbs
• Extreme temperatures
•Administration
• Repetitive tasks, little to no error allowed
• Work hours poorly organized
10.
11. Ergonomic Hazard Identifications Checklist
•Standing for more than 30 minutes
•Kneeling
•Activities performed while hands raised above shoulder height and bending/twisting at waist
•Lifting of objects for continuous periods of more than 15 minutes
•Objects can be over 50 lbs
12.
13. Workstation Checklist
•Full range of movement
•Postures vary
•Proper equipment available
•Armrest and footrest provided
•Comfortable positions
•Adjustable chairs
•Workstation does not eliminate:
• Bending/twisting at wrist
• Static muscle loading
14.
15. Task Analysis Checklist
•Tools available when needed
•Jobs can be done with both hands
•Employees well trained
•Design of primary task does not reduce/eliminate:
• Bending/twisting of wrist and finger-pinch grip
•High rates of repetitive motion not avoided by
• Job rotation, self-pacing, sufficient pauses, adjusting job skill level of worker
16. Task 1: Pouring a Complex Drink
•Bottles: 9-10 lbs
• 18-20 lbs total
•Uses 1-2 hands, prefers 2
•Repeated pouring 2-3 times
•Shoulder abduction slightly higher than 90 degrees
•About 180 degree pronation of wrist
•Sustained elevated arm work: 9 seconds
•Chose position due to smaller grip span and speed
17. Task 2: Carrying Bottles
•Purpose: Restocking
•Lifting 3 bottles, 9-10 lbs each
• 27-30 lbs total
•Asymmetric load
•Walking distance: 12 Ft.
•Uncomfortable arm posture
•Wrist only slightly deviated from neutral position
18. Task 3: Reaching for Materials
•Stooping
• Load is 11.2 inches off the ground
•Lowering of right shoulder
•Curved back
•Low surface
•Pinch grip
20. Task 4: Lifting Kegs (cont.)
•Two-person job
•Weight of full keg: 160 lbs
•Use of a dolly
•Back slightly curved
•Small handle; unable to separate hands
•Kegs are prone to low temperatures
•Tight grip
•Wrist position
• Jesse->Straightened, slight bent
• Wendy: -> Severe flexion
21. Implication of Positions
•Pouring a Complex Drink
• Shoulder-position: Shorter time to pain
• Cumulative trauma disorders (CTD) in wrist and shoulder (e.g. De Quervain's tenosynovitis)
• Repetitive strain injuries
•Carrying Bottles
• Offset balance
• Risk of lower back pain (LBP)
• More compression and shear in spine
• Less stability
22. Implication of Positions (cont.)
•Reaching for Materials
• Pulling down of shoulders -> Fatigue, inflammation, pain
• Stooping wastes a lot of energy
• Pinch grip -> Less strength, more force
•Lifting Kegs
• Tight grip -> Tendon compression
• Numbness and reduced tactile sensitivity
• Risk of LBP and lower back stiffness
• Ulnar deviation and CTD due to wrist position and deviation
• Disc herniation
23. Recommendations
•Posture
• Maintain vertical or horizontal straight wrist position
• Neutral shoulder position, minimize shoulder flexion & abduction
• Straighten back
• Tighten or loosen grip when appropriate
• Straighten arm when gripping
•Task and load
• Eliminate or reduce repetitive arm movements
• Minimize weight in hand or arms
24. Recommendations (cont.)
•Environment
• Elevate work surface
• Alternative: Kneeling or squatting
• Take longer or more frequent breaks
• Reduce people in workspace or increase work space
•Tools
• Container for bottles for symmetry in load and neutral arm posture
• Gloves (fingerless possibly)
25. Follow-up Interview
•Did you try any of the postural recommendations? If so, what kind of effect
have they had on you, if any?
• Arms feel less heavy, shoulders feel easier, less strain on wrist
• More conscious on posture and movements during tasks
• Does it occasionally, has not made a habit of maintaining an improved posture
26. What to take away
1. Posture matters, especially in fast-paced environments
2. Difference between report and observation
3. Technique is important
4. Tip your bartender
