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THE EFFECTIVENESS OF ADJUSTABLE HEIGHT CARTS IN REDUCING THE RISK OF LOW BACK INJURY IN GROCERY STOCKERS. Kermit Davis University of Cincinnati Lida Orta Anés University of Puerto Rico. The Problem. High incidence of low back injuries and costs BLS, 2009 Lifting is a main factor
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THE EFFECTIVENESS OF ADJUSTABLE HEIGHT CARTS IN REDUCING THE RISK OF LOW BACK INJURY IN GROCERY STOCKERS Kermit Davis University of Cincinnati Lida Orta AnésUniversity of Puerto Rico
The Problem • High incidence of low back injuries and costs BLS, 2009 • Lifting is a main factor • Awkward postures • Lifting from low heights • Lifting heavy product weight
Objective • Demonstrate whether lifting from the right height can reduce the risk of low back injuries for grocery item stocking tasks • Adjustable cart raises height of cart surface
Participants • 15 male workers • 5 inexperienced and 10 experienced • Grocery store in Puerto Rico • Spanish speaking
Adjustable Cart • Adjusted as weight is added • Spring loaded • Easy to maneuver • Limitations • Pink • Small surface area
Obstacles • Unique population • Spanish speaking, poor workplace • Gaining access to workers and actual workplace
Putting It All Together • Adjustable cart allowed product to be placed at waist level • Reduced forward flexion and motion • Reduced risk of injury • No detriment to productivity • Workers liked the cart • Perceptions were very favorable • Easy to use, more productive • Small change in Twist motion • Maneuverability of cart