Tips for Improving Vehicle Ergonomics

Volume 3, Number 11

Whether driving in to work, driving for pleasure, or if driving is your job, long term driving poses risks of back injury especially if vehicles need to be loaded or unloaded. Driving can also contribute to neck, shoulder, and leg pain as well as discomfort from a lack of circulation.

Driving is different from just sitting as we may be subjected to poorly-maintained roads and unsupported seated postures. When driving, our feet are out in front of us, not on the floor supporting and stabilizing our body. These factors, combined with loading and unloading materials and long hours of sitting, can increase the risk of back injury. The following are some tips for reducing the risk of back injury while driving.Getting In and Out

  • When getting into a vehicle, sit down first with both feet on the ground. Then, swivel your body by bringing your legs around to the pedals using the steering wheel to assist.
  • Put large objects (shopping bags, purses, briefcases, laptops) in the back seat or trunk before you get in rather than lifting them across your body to the passenger seat after you get in. Better yet, put them on the seat next to you from the passenger side before getting into the car.
  • Jumping out of over-the-truck cabs cause what is called "impact stress" on the discs and soft tissue of the low back. Always use three points of contact to get into and out of the cab for both safety and control of impact stress.
  • Take a minute to stretch or walk around before loading or unloading the vehicle.
While Driving
  • Remove objects, such as a wallet, out of your back pocket. Having something in your back pocket can cause your hips to be uneven and contribute to back problems.
  • Change your posture as much as possible. If possible, change driving duties with your passengers. Make frequent, small adjustments to your driving posture.
  • If you are driving long distances, take frequent breaks. Get out of the vehicle and do some stretches or walk around as often as possible.
  • Adjust your driving position as much as your seat will allow.
    • Raise your seat as high as possible to improve your vision of the road while still allowing for good pedal control.
    • If you have an angle adjustment between the seat and the backrest, angle the seat so that your knees are even or slightly lower than your hips or recline your seat back so that you have a slightly open hip angle of about 110° while still maintaining good visibility and contact with the steering wheel.
    • If your seat has a built-in adjustable lumbar support or you use a lumbar cushion, it should fit snugly against your lower back.
    • Adjust your headrest so that your head actually rests right in the middle.
  • Adjust and use your mirrors to avoid awkward neck and twisted postures.
  • Change hand positions on the steering wheel often. Use a relaxed grip, just tight enough for control.
  • Place you hands on the steering wheel so that your elbows are close to your sides, not so high that you have to reach up for the wheel.
  • Place your hands on the wheel at the 3- and 9-o'clock positions. This will reduce the amount of strain on your shoulders and puts your hands in a safer position if your air bag deploys.
Resources

121507, 1.0

The information herein is for reference only and State Fund does not warranty its accuracy or fitness for a particular purpose. Any products, references, or links to Web sites are not an endorsement by State Fund or its employees, but serve only as examples to assist you with your workplace design changes. State Fund cannot be held liable or accountable for content on linked Web sites.

Courtesy of the California State Compensation Insurance Fund

Safety

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Ergonomics Defined:
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Administration 10/7/2010