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Tag: ergonomics

  • Your Computer Is Hurting You

    The average person that comes in to see me is not an athlete, does not lift heavy objects, and cannot, for the life of them, understand why they are in so much pain. Truth is that you are more likely to suffer from that cushy desk job than from anything else.

    Simply sitting in front of a computer for hours on end day after day slowly but surely does some serious damage to the body.  Here is how:

    Headaches

    Look at the last picture of the evolution of posture.  Notice how forward the person’s head is; how his neck sort of sticks out; and how he seems to be reaching further towards the screen.  That head position that everyone uses today puts a huge load of stress on those teeny tiny suboccipital muscles that lie at the base of the skull.  These suboccipital muscles when they are irritated for too long respond by sending headache signals to the temples, the side of the head, the base of the skull.  It can almost feel like someone tightening a band around your head.  Ouch!

    Solution:

    1. Learn how to sit properly using basic ergonomic principles
    2. Keep your chin tucked in and stop inching your head toward the screen.  Perhaps it’s time to get a new glasses prescription or get a larger screen.

    Pain Between Your Shoulder Blades

    Notice how stretched forward his shoulders are?  How they kind of hunch forward and slouch?  This position keeps your chest muscles in a shortened, tight position, while stretching out the muscles in your upper back.  Yes, those rhomboid and trapezius muscles are being forced to work in a weakened, stretched out position.  They are also fighting a losing battle against tight, strong chest muscles.  The result is that the muscles between your shoulder blades will feel achy all the time.

    Solution:

    1. Stretch out your chest muscles, or try these chest stretches
    2. Strengthen your Upper Back Muscles with lat pulldowns, use a rowing machine, do any kind of lats workout

    Lower Back Pain

    Notice how the lower back is missing any kind of natural arch in this position?  See how it rounds forward?  This is reversing the natural lordotic curve of the lower back and puts extra pressure on the nerve and blood supply in the lower back.  Basically, pressure is being put on your discs (herniated disc, anyone?), nerves are starting to be pinched, and your lower back is starting to feel achy all over.

    Solution:

    1. Sit with your hips against the back of the seat and get a lumbar support

    Hip Pain

    All that constant sitting can be a pain in the butt.  The constant pressure compresses nerves and blood vessels.  It acts like a choke hold, preventing blood from flowing freely to the gluteal muscles.  A reduced blood supply means less nutrients and oxygen being pumped into your hip and leg muscles.  It also means that waste products are not being removed very effectively from your hips.

    Solution:

    1. Stretch out your hip muscles
    2. Learn these simple sitting exercises

  • Learning to Sit: Posture & Ergonomics for Work & School

    Office Ergonomics
    Don’t just sit there…. Get to work!”  used to be a familiar sound from the boss.  These days, however, most of us do all of our work sitting down on the job.

    As you can imagine, spending 8 hours a day in one position is not the best for our bodies.  Improper sitting can subject your body to unnecessary stress that may eventually lead to pain and discomfort in the neck, shoulder or low back.  Here are some tips to reduce discomfort:

    • Don’t remain in one position for long periods. Try standing up or walking around about every 20 minutes.This routine can be incorporated into your work routine by taking phones calls, filing or reading while standing up rather than sitting. Try delivering a message to a co-worker in person rather than e-mailing or using inter-office mail.
    • Try using the hands-free option on your telephone or a headset rather than holding the phone to your ear with your shoulder as this practice over time can lead to neck and shoulder strain.
    • Listen to your body. When you feel tension or stress in certain area of your body like the neck, back and shoulders, change positions or try some gentle stretching exercises

    Position your chair at a height where:

    1. The work surface is “elbow high.”
    2. Your feet are comfortably positioned flat on the floor
    3. When working, your elbows & knees are bent at 90 degree angles

    If your chair is not adjustable, use a foot rest such as a phone book to attain this more ideal position

    Position the height of your computer screen:

    1. Sit comfortably in your newly adjusted chair
    2. Close your eyes and relax, then, slowly reopen them.
    3. Where you first gaze as you open your eyes is the place to put the center of your screen

    You can raise the height with books or a stand if needed.