Overexertion injuries from pushing and pulling are preventable! Approximately 20% of overexertion injuries are associated with pushing and pulling work demands (NIOSH).
Researchers (Snook) have pointed out that most of these overexertion “accidents” are caused by the “unsafe acts of persons” as opposed to “unsafe mechanical or physical conditions.” Human failure such as poor body mechanics they indicated, is the primary cause of accidents.
Utilization of powered tuggers, mules, and other ergonomic assistive equipment should be considered for the most demanding push/pull tasks. But in most cases, proper body mechanics training for pushing and pulling tasks will remove the overexertion injury risk. Proper pushing or pulling technique will not only minimize the chance for an acute muscular strain injury, but it will also decrease the overall wear and tear to your musculoskeletal system that occurs on a day to day basis.
Prevention tips:
- Pushing loads is preferable to pulling because it involves less work by the muscles of the lower back and generally allows better visibility. If at all possible, attempt to push loads, carts, etc. instead of pulling them.
- Understand the load you will be handling and recognize your personal limitations. Don’t be afraid to ask for help if you need it.
- Always plan ahead. Inspect the wheels for obvious damage and the floor surface for any obstructions. Choose the most direct and safe route.
- The initial force to start a load requires the greater muscular effort. Use gradual effort to start and stop the load. No sudden forceful exertions!
- No matter what the size of the load, always position your body properly to complete the task with good body mechanics.
- Good body mechanics: Position hands shoulder width apart at chest height. Contract abdominal and slightly arch low back muscles. Bend elbows, retract shoulder blades and push chest out. Drop hips with feet flat and shoulders width apart.
Snook, H. “Approaches to the Control of Back Pain in Industry: Job Design, Job Placement and Education/Training,” Professional Safety, Vol. 33,No 8, August, 1988. pp 23-31.
