Another method for movement is for the employee inside the truck to stack papers close to the door and an employee outside the truck lifts them from the truck bed to the cart. Finally, some bundles are moved directly from one large delivery truck to another with the employee lifting them, carrying them to the other truck, and stacking them there. Generally, bundles are unloaded from one delivery truck, placed on a cart, the cart is pushed to a sorting area where the bundles are broken down to fill each individual order. Truck to truck transfer is probably used when one location requires a large quantity of a particular paper. Although it was not shown on this tape it is assumed that when the order has been filled, the sorted bundles are again reloaded onto trucks for delivery.
Employees perform frequent torso flexions, and use extended and elevated reaches.
It is difficult to determine the absolute number of repetitions, or period of time that a posture can be maintained or an activity performed, which will cause an injury. But the risk of injury is definitely increased as static posture times or repetitions of a movement are increased. There are sufficient frequencies of stressors in this task to cause musculoskeletal injuries unless adequate engineering and administrative controls are implemented. Many of the engineering controls will be addressed in the following sections. Some administrative controls are mentioned below.