I can't recall the study but it equated to the amount of force applied to a
keyboard over an 8 hour period, which was equivalent to the force of single
handedly lifting up a car. That's all!
----- Original Message -----
From: "Swann, Alan B" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, September 30, 2005 12:43 PM
Subject: Re: Assessing key stroke pressure
What is the significance of this "finding"??? (keyboarding equates to
lifting up a car). Lifting a car requires sustained application of extreme
high levels of force over a short period of time.
Forceful typing involves episodic, albeit highly repetitive, application of
far smaller forces alternating with relative relaxation of the muscles used
to apply the force.
Such comparisons only confuse. They don't enlighten
Dr. Alan Swann, BM, AFOM
Director of Occupational Health
Occupational Health Service
Imperial College London
Level 4 Sherfield building
South Kensington Campus
London
SW7 2AZ
Tel: +44 (20) 7594 9401
Fax: +44 (20) 7594 9407
https://www.imperial.ac.uk/spectrum/occhealth
***The College OH Service has moved. we are now based on Level 4 of the
Sherfield Building****
-----Original Message-----
From: Duncan Abbott [mailto:[log in to unmask]]
Sent: 30 September 2005 12:12 PM
To: [log in to unmask]
Subject: Assessing key stroke pressure
There has been quite a lot of studies into keyboard usage and the amount of
force applied to a keyboard over an hour period can be equated to lifting up
a car single handed.
What type of keyboard does the person use. Is there a delay between key
activatation and what's displayed on the screen? Is she stressed or angry?
Does she play the piano?
There's lots of solutions. As a coincidence I just completing an article for
Facility Management on selection of keyboards and mice.
Duncan Abbott
ergonomist
enricoSmog ergonomic practitioners
----- Original Message -----
From: "Paddy Lorenzen" <[log in to unmask]>
To: <>
Sent: Friday, September 30, 2005 11:58 AM
Subject: assessing key stroke pressure
> Has anyone come across the problem of VDU operators getting hand/wrist/arm
> pain due to the pressure they apply to the key? Usually this is because
> they learnt to type on a typewriter and thump the keys. I have had a case
> where the employee wore the letters off the key regularly!
>
> My question - is anyone aware of a pressure sensitive keyboard and
software
> that enables the employee to retrain them to press they keys at an
> appropriate pressure.
>
> any info or contact details would be appreciated
>
> Regards
>
> Paddy Lorenzen
>
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>
>
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