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Carpal Tunnel Syndrome Unrelated to Typing?

hug_the_penguin writes "Betanews is reporting about a Harvard medical school report that suggests Carpal Tunnel Syndrome is unrelated to typing at all. Suggested causes may be genetic disposition, body weight, fractured bones or even pregnancy." From the article: "Now, don't go out typing to your heart's content. Researchers still warned that improper computer use could cause different types of repetitive stress injuries, of which carpal tunnel is incorrectly described as one."

12 of 241 comments (clear)

  1. Carpal Tunnel Syndrome is sooo last week... by TripMaster+Monkey · · Score: 4, Funny


    Those science geeks over at Harvard need to devote their time to studying a much more debilitating form of RSI...namely, Nintendonitis (also known as Nintendo Thumb) ^_^

    --
    ____

    ~ |rip/\/\aster /\/\onkey

    1. Re:Carpal Tunnel Syndrome is sooo last week... by ShadowBlasko · · Score: 4, Funny

      Nintendo thumb?

      Man up Nancy.

      We had the Numb Thumb Club back in the Intellivision days. And we liked it!

      Oh, and get off my lawn

      --
      There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order- Ed Howdershelt Via Tass
    2. Re:Carpal Tunnel Syndrome is sooo last week... by brunson · · Score: 4, Funny

      Everyone knows that RSI is caused by excessive masturbation. That's why I just smile knowingly at the guy with the wrist brace in the next office.

      --
      09F911029D74E35BD84156C5635688C0
      Jesus loves you, I think you suck
  2. Hmm... by MaestroSartori · · Score: 5, Informative

    I'd always been told it was pressure on the carpal tunnel that caused it, not finger movements. So typing with your wrists pressed against the corner of a desk (or in the case more familiar to me, playing bass guitar with the right wrist pressed against the top edge of the instrument) would cause it, not typing with a nice wrist rest or with hands held high, piano-style, above the desk...

    1. Re:Hmm... by IAmTheDave · · Score: 4, Interesting
      I'd always been told it was pressure on the carpal tunnel that caused it, not finger movements.

      Exactly, but what people should not take away from this article is that improper use of the keyboard still can be a contributing factor to carpal tunnel along with other RSIs. As a matter of a fact, my forearms feel more stress from working with the mouse than the keyboard - probably because I've trained in piano for years and thus actually keep my hands pretty properly placed above the keyboard.

      That said, programming for 7+ years has definately taken its toll on my arms/wrists/hands. Carpal tunnel or other RSIs, proper typing is a must.

      --
      Excuse my speling.
      Making The Bar Project
  3. Not really news... by DaHat · · Score: 4, Insightful

    ... or at least not to me.

    Years ago I went to the Dr about some pain in my hands and wrists and he determined it was carpel tunnel.

    Funny thing though... I don't have issues with typing... in fact, I'd had it for longer than I'd had a computer... and it really only exhibited itself when clutching something, like a pen, mouse or other controller.

    Shame... I had it before it became all the rage.

  4. I tend to agree by $RANDOMLUSER · · Score: 4, Interesting

    I'm right handed, and the carpal tunnel in my left hand is MUCH less than the right hand, and I notice that it hurts much worse when I've been mousing a lot, rather than when I've been typing a lot. I know that a lot of writing with a pen or pencil will cause a big flareup, too.

    --
    No folly is more costly than the folly of intolerant idealism. - Winston Churchill
  5. They are right - sort of by canuck57 · · Score: 5, Insightful

    "Betanews is reporting about a Harvard medical school report that suggests Carpal Tunnel Syndrome is unrelated to typing at all.

    I didn't get mine by typing, I got it from the mouse. Having clicked for so long I finally got sharp pains and the symptoms. And does it hurt.

    So I switched to my left hand for the mouse, continue to type and it is slowly getting better.

    Might I suggest to researchers to really do some pure no BS research. What they might find is the ergonomics of many of todays offices and computers are the problem. Some I/T people work in closets. And that "touch pad" on my portable, more than once I have thought about taking an electric drill to it to destroy it.

    Computers need to fit people, not the other way around.

  6. What about Ulnar Tunnel? by AndyBassTbn · · Score: 5, Interesting

    Over this last summer, the ridiculous amount of typing I was doing caused by ring finger and pinky to go numb. Thinking it was Carpal Tunnel, I went to the doctor, who confirmed to me that Carpal Tunnel is not usually caused by typing.

    What she did tell me, however, was that I likely had Ulnar Tunnel Syndrome. Though this is also not caused by typing, it was the resting of my elbow on the desk which applied pressure on the Ulnar Nerve, causing numbness and pain.

    Couple this with my career as a professional trombonist, and I had trouble.

    The moral of the story is simple - it is not so much how much you type (or perform), it is the position of your hand and arm whilst doing it. Keeping a natural, "open" posture is ultimately the best way to prevent these problems.

    --
    I hope the land around you yields, a crop like all the other fields, and then your waiting might make sense...
  7. I Have This... I Think.. by scheming+daemons · · Score: 5, Funny
    I suffer from this all the time. The guy I ride to work with has the uncanny habit of slowing down to less than 20 miles per hour when he enters a tunnel, even though the speed limit is 55 both outside and inside the tunnel.

    I want to kill him when he does this, but it's not my fault... for you see, I have:

    Carpool Tunnel Syndrome

    oh... you're talking about something else?

    --
    "I have as much authority as the pope, I just
    don't have as many people who believe it" - George Carlin

  8. Hand surgeons... by CupBeEmpty · · Score: 4, Informative
    So I deal with hand surgeons on a very regular basis (and these are top of the line international teaching surgeons to boot) and the concencus I get from them is that the act of typing itself is not necessarily what is causing the inflammation on the nerve. For example:

    • Take your hands and hold them out in front of you with your elbows touching your ribcage and forearms extended directly out, parallel to the floor, palms down and also parallel to the floor.
    • Now move your your hands together so your thumbs touch.
    • Now move your hands (thumbs still touching) toward your chest.

    If you did all of that correctly you would see how the angle of your wrists becomes and less natural. Now imagine typing with your standard (or worse.. laptop) keyoard close to your chest. The unnatural angle does not bode well for your wrist.

    Basically 75% (rough number) of people that come into these docs complaining of chronic wrist pain don't even need splints. They are advised to get a trackball (much easier on the wrists), type with the keyboard farther away, and have the top of the monitor at eye level, and sometimes to get an ergonomic keyboard. Most people report that their symptoms are gone within 2-4 weeks if they keep up their new setup. I know a lot of /.'ers are pretty down on things like ergonomic keyboards and consider them little more than overpriced gimmicks but the truth is they are a far cry less expensive than carpal tunnel surgery and relatively effective.

    As a microbiologist I can also tell you that pretty much any disease/disorder/etc. is influenced by things like genetics, age, weight, hormone levels, etc. etc. Saying that carpal tunnel isn't affected by poor body angle and repetetive motions (like typing) is like saying that skin cancer isn't caused by bathing yourself in UV radiation all day and that it is only attributable to genetics, and body type. The other problem with this report (which we also have not seen yet) is that it is a correlation study in the negative. They are saying that they cannot find a correlation so therefore it must not exist. That is even worse that the positive correlation studies where two trends coincide so they conclude causation. My view is that typing does aggravate carpal tunnel but so does genetics that make you susceptible to inflammation.

  9. I have some experience with it: here's how to heal by aeoo · · Score: 4, Interesting

    I used to have RSI to the point where if I lifted my hands above my head, my smaller digits would instantly become numb. Right now it is mostly (99%) self-healed and gone. Read below for my solution.

    RSI is caused by stress, lack of sleep, and poor diet (lack of sleep is itself also stress). If you try to type faster than is comfortable, and unconsciously pound on the keyboard, you will get it. You are even more likely to get it if you work in a very stressful environment. However, if you type without hurry and only apply enough effort to activate the key and no more, then you won't get it.

    If you have RSI, stop typing faster than is comfortable. Don't reach for your ultimate typing speed. Stop pounding the keyboard -- apply only enough force to activate the key. Eat decent food and sleep 8 hours a day. It would also help to use a wrist exercise equipment, such as a physiotherapy ball/gel, or even some sports grip equipment (often a spring with two handles), to strenghten up your wrist by exercise, but do not overdo it. If you stretch your wrists -- do it gently and do not overstretch (this is important!). And watch your RSI go away. :)

    An important point is not to reintroduce stress through stressful stretching and exercise. So when stretching, don't go crazy and don't push it hard -- go easy on your hands and relax.

    You may slip back into the old pounding the keyboard spazmatically routine, so you have to be careful not to regress into a bad habit once you get rid of it.