Fundamental Research Proof For Slanted Mouse

handshoe mouse hand support

Fundamental research by a Dutch university has shown that extending your hand and continous hovering of your fingers above the buttons of a conventional computer mouse causes an un-interrupted excessive load of your hand and fingers. The same study shows that this is also the case when using most, so called, ergonomic mice.  Professor Han-Ming-Chen of national Taiwan university proved that the use of any non-slanted mouse will cause discomfort in your forearms and shoulders while using a mouse with a suitable slanted angle provides a more neutral hand position. It reduces forearm and shoulder muscle activity and thus the risk of RSI and carpal tunnel syndrome.

A too large slanted angle will again result in higher muscle activity and thus increase risk. On top of this it has been shown that continuous low intensity muscle activity may damage the finer muscle tissue, also known as the cinderella effect.

Field research has shown that the ideal, slanted HandShoe Mouse fulfills all ergonomic requirements as concluded from the world wide, extensive, university based research.

Watch the one minute ergonomic mouse video:


Ergonomic Mouse Prevents Pain

Mouse Pain?

Do you ever have tired or painful muscles in your hand, wrist or forearm after working with a computer mouse? The most common reason is that a conventional mouse forces the muscles in your forearm to continuous activity. You may end up with pain in your arm unless you take precautions.

In this video we will give you the technical explanation which is based on university research.
The anatomy of forearm and hand explains the sources of your complaints: hovering of your hand and fingers over the mouse requires action of the so called extensor digitorum muscle.
To hold onto your mouse another set of muscles is continuously active. You need the extensor carpi ulnaris to work from the wrist.

Best Ergonomic Mouse

In order to prevent the pains caused by a conventional computer mouse, we developed the best ergonomic solution:  the HandShoe Mouse. This mouse is taking all aspects into consideration. Now your muscles will stay relaxed as your hand is fully supported so there is no more hovering of your fingers. And you don’t have to grip it to move it. Last but not least, the support angle allows for easy movement from the wrist.

This video gives a clear view of the muscles in your arm and how they are affected when using a computer mouse:



best ergonomic mouse





The Proper Use of Ergonomic Tools

Simple advice on the use of  ergonomic tools

In a previous post I referred to the research performed under the guidance of professor C.J. Snijders of Erasmus University Medical Center. That particular post focussed on the correct posture at your desk.
Now it’s time for the next step, which is: the proper use and position of the available (ergonomic) tools. This simple advice is meant to minimize the risk of physical complaints while working at your desk with a computer. 

 Sit relaxed at your computer screen

First of all: make sure you sit as relaxed and comfortable as possible in front of the screen. The angle at which you look at the screen should allow your head to be in an upright position, so don’t look up and don’t look down.

Modern screens can easily be adjusted to the correct height. Moreover, as screens get larger and larger, a 20” screen is nowadays quite an accepted standard. Even a dual set-up is used to allow for an easy overall view of the opened files.Be aware that the distance between your eyes and screen is more than when you read a book, so maybe you need an (extra) pair of glasses with an adapted focal distance. This is essential, in order to prevent unconsciously leaning forward to see what’s on the screen.

Use a small, flat keyboard

A multitude of keyboards is available in the market.
As a general advice a keyboard should be as flat as possible with keys that run as lightly as possible. Strains in forearm muscles, due to lifting hands and fingers, will thus be prevented.

It is advised to select a small keyboard, for example with a separate numerical unit. When you do not have to reach out to get to your mouse you prevent excessive strains in your shoulders. Otherwise continuous reaching may lead to complaints.

Get an ergonomic computer mouse

You need an ergonomic mouse, which prevents that your hand, fingers and arm are forced in an unnatural position. It is uncomfortable, for example, when your hand is continuously forced on its side. We call this a “handshake” position which is not only uncomfortable, but it also may generate unnecessary stresses and strains.

Another aspect is that your fingers and hand should be supported to prevent the need to hover over the mouse. Most people are not aware that a continuous “hovering position” of some of your fingers instigates severe muscle tension in the forearm.

Next to these hovering stresses and strains is the negative effect of gripping and pinching just to hold onto the mouse. It has been shown in our research, that this unnecessary muscle tension has a severe negative effect on your deep neck muscles. A well known complaint resulting from this is a tired feeling in and around the neck.

(More information can be found here:

A mouse which supports hand and fingers prevents unnecessary gripping and pinching. Ideally your hand and fingers are under an angle of 25-30 degrees which is the preferred position for optimal relaxation.

Finally: another possible relief of tension is to pre-programme some keys of your keyboard so you need less typing action.