Ergonomic Mouse or the pointing device is now available in the market in different sizes, shapes, and configurations. Apart from the conventional Ergonomic Mouse, other pointing devices include touch pads, trackballs, fingertip joysticks, and pucks. While designing a safe workstation, you should give great importance to selection and positioning of Ergonomic Mouse/Pointer. Do keep in mind the following factors while evaluating your workstation.
- Ergonomic Mouse Placement
- Ergonomic Mouse Size, Shape, and Settings
Ergonomic Mouse Guidelines
- Ensure that the Ergonomic Mouse/Pointer is close to the keyboard.
- Ensure that you use alternate hands while handling theErgonomic Mouse/Pointer.
- Learn and use the keyboard short cuts to reduce extended use of Ergonomics Mouse.
Ergonomic Mouse Placement:
If the Ergonomic Mouse/Pointer is not placed near the keyboard, there are chances that your body will be exposed to awkward postures, contact stress, or forceful hand exertions while operating the device. If you continue to work in such postures for long hours, your shoulders and arms will be stressed out. For convenience you might sit with awkward wrist and shoulder postures that might lead to Ergonomic problems in the long run.
Select a particular position for the Ergonomic Mouse/Pointer so that you can maintain a straight, neutral wrist posture. If required, you may make slight adjustments in your chair, desk, keyboard tray, etc.
If the keyboard tray/surface that you use does not have enough space for both the keyboard and the mouse, you can try out the following suggestions:
- You can use Ergonomic Mouse platform over the keyboard that helps you to use the Ergonomic Mouse above the 10-key pad.
- You can set up a Mouse Ergonomic tray next to the keyboard tray.
- You can se a keyboard that has a pointing device, such as a touch pad, incorporated into it so that the work gets done even without the help of the Mouse Ergonomics.
- You can try using a keyboard without a ten-key pad, which leaves more room for the Ergonomic Mouse/Pointer.
- You can install keyboard trays that are big enough to accommodate both the keyboard and Ergonomic Mouse.
- You can try a Ergonomic Mouse pad with a wrist/palm rest to promote neutral wrist posture.
- You can substitute keystrokes hence depending less on the mouse, such as Ctrl+S to save, Ctrl+P to print etc.
Ergonomic Mouse: Size, Shape, and Settings
If the size and shape of the pointers that you choose are unsuitable, it may force you to sit in awkward postures, thereby increasing stress and hence overexertion. Generally, pointing devices that are too big or too small make the fingers to apply more force and bend the wrist to awkward positions. Also, if you operate a device designed for the right hand with your left hand, it leads to posture disorders that can create contact stress to the soft tissue areas in the palm of the hand. Contact stress leads to irritation and inflammation.
Feasible Solutions :
An Ergonomic Mouse is to be selected to the fit the hand of the user who will be using it mostly.Ergonomic Mouse to fit right and left hands as well as small and large hands are available in the market. It is ideal to select a Ergonomic Mouse that is designed for either hand because you can switch from one hand to the other while operating the device hence giving rest to one hand at a time. Before selection of the Ergonomic Mouse, it is better to test it and ensure proper fit and feel.
The size of the Ergonomic Mouse matters and hence while selecting you need to ensure that you have to apply only a minimum force to generate movement. Normally puck devices should be small in size for using with single hand with a width of 1.5 to 2.5 inches, length of 2.5 to 4.5 inches and a height of 1 to 1.5 inches.
It is better to reduce your dependence on the Ergonomic Mouse by using short cut keys and other options available on the keyboard like page down thereby reducing the strain on hands.
Try out other pointing devices like joystick, touch pad, or trackball that fits your hand better and doesn’t require bending the wrists when you grip the device. Remember to try out new products prior to selection and long-term use.
Ergonomic Mouse wrist / palm rest makes the positioning of the hand over the keyboard comfortable.
The speed of the Ergonomics Mouse pointer may be defined as the pace in which it moves on the screen when you move the Ergonomic Mouse with the hand. The Ergonomic Mouse, that you select should be sensitive and fast enough so that you can comfortably adjust and control it as required. Also, the pointer should cover the entire screen of the monitor while your wrist is relaxed in a straight, neutral posture.
In order to control the Ergonomic Mouse /pointing device with a light touch without straining your wrist, it is better to set its sensitivity. Devices in which the sensitivity can be adjusted through the computer control panel are now available in the market.
Do not grip the Mouse Ergonomics device tightly in order to get good control of it.
If you are using a trackball, ensure that its exposed surface are is not less that 100 degrees. It has to comfortably rotate in all directions for the user to try any combination of movement as required.
- The Ergonomic Mouse /Pointing device should be selected based on the requirements of your job and your physical restrictions. Other than preference, there is no much difference between a Ergonomic Mouse, trackball, and other pointing devices.
- The cord of the Ergonomic Mouse should be long enough to be conveniently placed near the keyboard. The shape and size of the Ergonomic Mouse should be good enough to snug into the curve of your hand.
- Among the different Ergonomic Mouse, if you prefer a trackball for your work, remember not to select the ones that need your thumb for rolling its ball. This can cause discomfort and possible injury to the area around your thumb.
- If the user’s hands are small, then select a mouse that is smaller than the normal ones. But if multiple users are using it, then a normal-sized one should be retained.
- Always go for a mouse that has good sensitivity adjustments and that can be used by both hands conveniently.
Ergonomic Mouse: Wrist/Palm Supports
|Fig. 12 – Palming the Ergonomic Mouse makes the wrist straight.|
If your keyboard and Ergonomic Mouse are arranged properly and appropriately, then you can say that your workstation is a comfortable and productive one.
This comfort is intensified if you use wrist or palm rests. If used properly, wrist/palm supports reduce muscle activity while working on the computer and facilitates neutral wrist angle.
Ergonomic Mouse: Wrist Rest Guidelines
To keep the contact stress that can occur while typing and while using the mouse to a minimum, it is better to use a wrist rest so that you can maintain straight wrist postures.
The wrists tend to bend in a wider angle if you use the keyboard for long hours without using a wrist rest. As the angle of bend increases, the contact stress and irritation on tendons and tendon sheathes also increases. Professionals who depend more on keyboards to get their job done have to be very careful. The contact stress between the wrist of the user and the hard/sharp components in the workstation also increases.
The motion of the wrist is slowed down while you are resting the wrist/palm on a support during the typing jobs that will in turn lead to awkward wrist postures.
Ensure that your hands are moving freely and are raised above the Ergonomics Mouse wrist/palm rest while using the keyboard. Also remember that the pad should be in touch with the palm of your hand and not your wrist while resting on the Ergonomic Mouse wrist rest.
Ensure that these are part of a well-designed workstation.
Do not frequently bend your wrists by adjusting other workstation components like that chair, desk, or the keyboard. See to it that your wrists are in a straight, neutral posture.
The Mouse Ergonomics wrist support should be matched with the width, height, and slope of the front edge of the keyboard.
The Ergonomic Mouse wrist/palm supports should be fairly soft and rounded to minimize pressure on the wrist. Ideally it should be at least 1.5 inches (3.8 cm) deep.
Ergonomic Mouse: Wrist Rest Recipe
- The shape, width, slope, and height of the Ergonomic Mouse wrist rest should match the front edge of the keyboard.
- It would be better to use gel type materials for the padding that makes it soft and firm.
- The recommended depth of the Ergonomic Mouse wrist rest is at least 1.5 inches (depth away from the keyboard). This helps to minimize contact pressure on the wrists and forearm.