Correct angle for keyboard

John Doe wrote:
Troll



Heh, I am beginning to wonder, although I *have* seen a couple of
correct and proper answers from said person.

--
I used to have abs. Now, I've just got ab.
One big ol' Ab. - BigSkiff www.titanspot.com

Pyongyang sounds more like the sound effect an ACME catapult makes
as it goes off at precisely the wrong moment for Wile E. Coyote. -
Cadbury Moose

"WindsorFox" wrote in message
news:L5szg.105347$IZ2.46418@dukeread07...
John Doe wrote:
Troll



Heh, I am beginning to wonder, although I *have* seen a couple of
correct and proper answers from said person.


Which is more then you'll ever see from "John Doe", whom I killfiled long
ago and only see his messages when others respond to them.
It's quite ironically humorous when he accuses someone else of trolling,
useless twit that he is.

WindsorFox wrote:
John Doe wrote:
Troll



Heh, I am beginning to wonder, although I *have* seen a couple of
correct and proper answers from said person.

And not a single one from that fool.

Rod Speed wrote:
kony wrote
Archie wrote

Is there a generally-accepted best angle for the slope
of a regular keyboard? One web page says this:

------------------ BEGIN QUOTE -----------------
"angle of the keyboard relative to the angle of the wrist. Most
keyboards slope upwards from front to back, and this means that users
bend their hands upwards when they are typing on the keyboard. This
posture is called wrist extension, and we know that it is a source of
injury risk for the wrist. Once the hand is extended beyond about a
15° upward angle, there is a very significant increase in the
compression on the median nerve and other structures inside the
wrist. So it is extremely important to type with the hands as flat
as possible.

From http://ergo.human.cornell.edu/AHTutorials/ckd.htm
------------------ END QUOTE --------------------

Which I interpret as being zero to 15 degrees. But my Compaq
keyboard permits either:

(1) flat or maybe 5 degrees
(2) about 30 to 35 degrees.

1) Keyboard tilt is mostly to help those who
can't type and need to see the keys best.

Bull****. Have fun explaining the keyboards on typewriters
that were designed to be used by professional typists.

You mean those designed in 1968 before the affliction known as Carple
tunnel syndrome had a name? Good comparison.



--
I used to have abs. Now, I've just got ab.
One big ol' Ab. - BigSkiff www.titanspot.com

Pyongyang sounds more like the sound effect an ACME catapult makes
as it goes off at precisely the wrong moment for Wile E. Coyote. -
Cadbury Moose

WindsorFox wrote
Rod Speed wrote
Archie wrote

Is there a generally-accepted best angle for the slope of a regular keyboard?

Nope.

One web page says this:

------------------ BEGIN QUOTE -----------------
"angle of the keyboard relative to the angle of the wrist. Most
keyboards slope upwards from front to back, and this means that
users bend their hands upwards when they are typing on the keyboard.

Nope, the hands just move over the keyboard with the arms doing that instead.

This posture is called wrist extension, and we
know that it is a source of injury risk for the wrist.

No we dont. In spades when the arms are what moves.

Once the hand is extended beyond about a 15° upward angle,

Pity that doesnt happen.

there is a very significant increase in the compression
on the median nerve and other structures inside the wrist.

Wrong again.

So it is extremely important to type with the hands as flat as possible.

Wrong again.

From http://ergo.human.cornell.edu/AHTutorials/ckd.htm
------------------ END QUOTE --------------------

Which I interpret as being zero to 15 degrees.

Nope, they are clearly saying in that last that zero is best. They are wrong.

But my Compaq keyboard permits either:

(1) flat or maybe 5 degrees
(2) about 30 to 35 degrees.

I doubt you type enough to matter.

Do you have any references to back up your disagreements?

Dont need any of those on the basic stuff at the top.

Dont need any on the much more basic stuff that
typewriters didnt have anything like zero slope for
what must be something like a century or more either.

AND that Cornell cite doesnt present a shred of rigorous scientific
evidence to support their proclaimation that zero slope is best.

THATS what its about, evidence based science.

I can't find anything and I tend to trust Cornell Univ. on this since I can
correlate most of what you disagreed with to fact by personal experience.

Pity about all those typewriter keyboards over a century or more now.

It's a fact that typing with the hands bent in a upward position can exacerbate the
condition especially in people predisposed for it.

Its a fact that the hands dont need to bend upwards when the
arms move upwards instead to allow access to upper rows.

Zero degrees may not be the optimum, but until the release of the latest MS ergo key
board it was the best that could be achieved with a keyboard on a flat surface.

Again, thats just your claim without a shred of rigorous
science to substantiate the claim that that is the best.

At $dayjob I have seen may people typing with their hands past a 15 degree angle

Not the way that is claimed at the top.

so it seems you may have limited experience with unexperienced typists

You need to get your seems machinery seen to.

I happen to have a wealth of experience going back to LONG
before there were even any computer keyboards at all.

And its just a tad unlikely that the vast bulk of those who used
teletypes were inexperienced typists, and you should be able
to find plenty of pics of those on the web if you dont know
that those had nothing even remotely resembling anything
like zero slope keyboards.

In fact I cant even think of a single example
of a zero slope typewriter keyboard.

and this comes down to them not knowing better and/or not knowing how to adjust the
keyboard tray which allows for a keyboard to be tilted down towards the top end rather
than up.

You keep ignoring all those typewriters over more than a century now.

It occurs that if some of your answers are to have any credibility you should provide
some insight into your reply beyond "nope" or "wrong."

I did that, most obviously with the mention of typewriters thanks.

Rod Speed wrote:
Osiris wrote

ISO has standards,

Pity there isnt one for the keyboard angle.

ISO 9241-4

Doesnt specify a 'correct' keyboard angle.

"General design includes items such as: palm rests; the visible surfaces
of the keytops; the SLOPE of the keyboard and keyboard SLOPE
ADJUSTMENT." So if you have a book or .pdf that shows the full and
actual wording of ISO 9241-4 would you be so kind as to quote it....



plse READ before comment

Go and **** yourself. No please, that's an order.



Real mature.

--
I used to have abs. Now, I've just got ab.
One big ol' Ab. - BigSkiff www.titanspot.com

Pyongyang sounds more like the sound effect an ACME catapult makes
as it goes off at precisely the wrong moment for Wile E. Coyote. -
Cadbury Moose

kony wrote:

Sure, you can type any way you please. The younger you are,
the less you type, and the more breaks or changes in
position you make, the less likely it'll be a problem.

On the other hand, people who ARE typing a _LOT_ and/or
having problems, will need to find out what to do about
it...


Also some people are more susceptible to carpel tunnel syndrome than
others depending on the size of said tunnel.

--
I used to have abs. Now, I've just got ab.
One big ol' Ab. - BigSkiff www.titanspot.com

Pyongyang sounds more like the sound effect an ACME catapult makes
as it goes off at precisely the wrong moment for Wile E. Coyote. -
Cadbury Moose

Rod Speed wrote:


Wrong with electric typewriters.

Incorrect. Only electric typewriters that do not have DaisyWheel,
IBM Ball or digital technology. A current typewriter has an almost flat
keyboard and if one is sitting at the proper height it should not make
much difference in *most* people. You seem to know as much about this
particular subject as you do about analog audio equipment.


2) SLOW DOWN the typist.

Wrong again. That was the keyboard layout letter
wise, designed to prevent jamming with typewriters
that had a basket of keys on long arms.

2) The issue is not keyboard tilt at all (not to do it) but
rather, keyboard height. Sitting straight in the chair with
arms at near parallel to the floor, wrists should bend
downward slightly, that is where the keyboard should be.
If it isn't, the table/desk/whatever needs changed.

It isnt that black and white, particularly if you are only
typing spasmodically as is the case with most PCs.

It all suddenly makes sense.

Rod is typing spasmodically.

Never ever could bull**** its way out of a wet paper bag.

So you want #1 above, but it's not as important as the
correct keyboard (table) height, OR the correct chair height
to match the keyboard height BUT there are other issues for
chair height like proper ergonomics for your upper legs so
it is typical to adjust table height to the correct level
for a properly fitting chair (to the user), not adjust chair height.

I have never bothered with that crap, used to type with my feet up
on the desk with detachable keyboards in my lap, and now I only
ever use a full armchair with my feet up and the keyboard in my lap.

Sure, you can type any way you please. The younger you
are, the less you type, and the more breaks or changes in
position you make, the less likely it'll be a problem.

Pity I am likely to be old enough to be your dad thanks, child.

On the other hand, people who ARE typing a _LOT_ and/or
having problems, will need to find out what to do about it...

Never ever could bull**** its way out of a wet paper bag.




--
I used to have abs. Now, I've just got ab.
One big ol' Ab. - BigSkiff www.titanspot.com

Pyongyang sounds more like the sound effect an ACME catapult makes
as it goes off at precisely the wrong moment for Wile E. Coyote. -
Cadbury Moose

H. Seldon wrote:
Osiris wrote:

snip

bear with him.

Nah, I don't think so. Lack of knowledge I can obviously understand and
abide. *Arrogant* stupidity? That's another story.

ROFL

--
I used to have abs. Now, I've just got ab.
One big ol' Ab. - BigSkiff www.titanspot.com

Pyongyang sounds more like the sound effect an ACME catapult makes
as it goes off at precisely the wrong moment for Wile E. Coyote. -
Cadbury Moose

WindsorFox wrote:
John Doe wrote:
Troll



Heh, I am beginning to wonder, although I *have* seen a couple of
correct and proper answers from said person.

You're correct. A few of his answers, in part, are not entirely without
merit!

--
VWW