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commentary Input Devices RSI

It’s a mouse! Ouch!!

Computer mouseI constantly see advertisements for ergonomic mice. It seems like every company has an ergonomic mouse out there that has been specifically designed to reduce RSI, improve ergonomics, help avoid injuries etc etc.

Just about every time I eagerly check out a picture of the new super ergonomic mouse, however, I am usually confronted by a picture of – well, a regular two/three buttoned mouse with scroll wheel. So I’m expected to continue clicking and scrolling and reaching out to one side to use these ‘ergonomic’ devices? I take one look at this and automatically think – ouch!

It is my opinion that designers need to start thinking outside the box when developing ergonomic equipment, and not just try to flog to the general public the same old mouse design with perhaps a shinier, rounder, more colourful appearance and expect them to believe it’s a major breakthrough. It is actually amusing to see how many ‘ergonomic’ mice there are available now. Obviously, no-one wants to be responsible for selling ‘un’ergonomic mice, so it has become an over-used label with a view to seeing how many gullible people bite.

If any of these manufacturers were serious about producing an ergonomic product then they should test these with a wider group of RSI sufferers with different types of RSI. Let’s face it, there are enough of us around these days!

One reason I recommend the Contour Rollermouse is that the designers obviously used some lateral thinking when designing this product. I can also attest to the device allowing me to prolong my working life by 2-3 years. I only wish I’d found one earlier so I could have avoided a more permanent injury.

I  don’t know about you, but I have a knack for looking at an ‘ergonomic’ mouse and saying ‘ouch’ without having to try it. Maybe I’m just an old timer at this….

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commentary Input Devices RSI

Text input controlled by thought?

In an interesting article in Hplus Magazine entitled ‘By thought alone: Mind over keyboard’, the author describes studies into how we can use the brain’s thoughts to control a keyboard input. The findings indicate that people with electrodes implanted in their brains can learn to type by using thoughts alone. It’s also possible to achieve this without these electrodes by using  an EEG type interface, although speed rates for typing seem to be slow if we take the current findings –

“Tweeting by thought alone is a somewhat slow process using this prototype technology –- we speak at approximately 120 words per minute. But, as with texting, users can improve as they practice using the interface. “I’ve seen people do up to eight characters per minute,” Wilson says.”

Ouch.. that would be a significant downturn in workload!  I can see this form of input being a considerable benefit to people with severe disabilities, however I do wonder what the long term health impacts are of having an electrode implanted in your brain. My guess is that it must surely at this stage be a large unknown. It is, however, an interesting area of research.

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ergonomic products Ergonomics Input Devices

New Ergonomic Products Page

rollermouseproI have released a new page on the site which contains a list of  ergonomic products it’s also available from the main menu on this site.

The page is not so much intended as a page of products that I endorse. It is more a collection of the latest products in the field of ergonomic computer input as well as some key older products. It may contain ergonomic products which I find to be useful, potentially useful, or completely bizarre, and will where appropriate have my comments on the product and if available, a link to a review that I have done on the item. I will clearly state whether I have/have not used the product.

The page will be updated/added to as new products appear on the market.

If you are a manufacturer that would like to have their product listed or reviewed by Ergomatters please contact us.

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Career commentary Ergonomics faq Input Devices Lifestyle RSI Tips

New RSI Frequenty Asked Questions (FAQ) Page

rsi_faq_mdI am happy to announce the release of my latest update to this site, a Repetitive Strain Injury (RSI) Frequently Ask Questions (FAQ) page along with answers! This is basically a download of information from my head as to my understanding of RSI, along with relevant links and information, and is without doubt the largest information release I’ve done on this site. Hopefully you will find this useful. Please feel free to comment and share.

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Ergonomics fitness Lifestyle Miscellaneous Review

Move Well and Avoid Injury DVD : Review

DVD : Move Well Avoid Injury : What everyone needs to know about the body (by Barbara Conable and Amy Likar, Andover Productions, 2009)

movewell_frontcoverI may not be a medical professional, but I am able to tell when I encounter descriptions of body motion that just make plain sense, and this DVD contains some enlightening information. In a collection of well narrated chapters complete with diagrammatic video illustration, the evidence is laid bare of our common tendencies to keep our bodies out of balance, causing pain through muscle tensions that, in turn, keep our bodies in bad posture. This is due in part to us having mapped the body in a particular way, eg in relation to position, when in reality the position is entirely different.

This DVD is broken into multiple sections covering the many aspects of posture imbalance, and covers areas from the head to the feet and just about everywhere in between. Posture is translated by the authors as ‘Body Maps’ which are essentially memories in your mind of where you think your individual body parts are and how you use them. The DVD highlights how you may have had a flawed map (understanding) of your various body parts in your mind from a very young age. This may have led you to actually move according to those flaws and results in the straining of some parts of your body which can lead to pain. As the narrator tells us, “We move in the way in which we think we are constructed …”, either consciously or unconsciously. Wrong body maps can be responsible for many bad posture related problems, from walking to sitting, to using a computer.

Subjects covered in the DVD include –

  • Body maps – identifying flaws in the human body map and how to recognise those errors
  • Balance – identifying correct balance with core posture, and identifying posture related pain
  • Kinesthesia – learning free and fluid movement to correct body imbalances
  • Arms – covering shoulders, elbows,  wrists and hands
  • Legs – covering hips, pelvis, knees and feet
  • Breathing – covering lungs, skeletal/muscular system, diaphragm
  • Mapping the whole body
  • Correcting the map
  • Inclusive attention

The areas I can relate to most pertain to the shoulders, arms, wrists and hands. These are covered in detail and are very applicable to the RSI sufferer. The main posture/skeletal issues with RSI type injuries are listed, adding to the viewer’s knowledge and understanding through plain and straightforward explanations along with clear diagrams and video.

From previous experience, I knew that over-supination of the wrists was a bad thing, but now I know about the natural axis of rotation of the forearm and how it ties in with a neutral position wrist, as well as why supination causes so many injuries.

The company website rather generously shows sample videos of some chapters which are well worth checking out, and will give you a sneak peak of the DVD content and style as well as some key body map information!

I also found the section on breathing very interesting. It’s probably the first time I’ve been able to picture the role of the diaphragm in breathing, and I certainly had my lungs mapped as being a bit lower than they actually are. The related section on the ribcage was also revealing to me having just recently strained my sternum connective tissue whilst gardening. It  also reinforces the benefits of some breathing practices including Yogic breathing (Pranayama).

The DVD run time is a substantial 2hrs,  and certainly lends itself to being watched in stages. There is the temptation to skip straight to the section you are most interested in, however it should be watched as a whole to get the complete picture and overall message firmly ingrained in your mind. I expect that multiple viewings would be best to fully absorb the detail.

All in all this DVD is an excellent resource for just about everyone. It is not solely aimed at one specific group of people eg RSI sufferers, but covers the whole body, and should be a useful education tool for everyone, including ergonomists, physiotherapists, fitness instructors, yoga teachers etc, as well as many others including in the medical profession.

If you have posture related pain it’s likely that it’s down to your bad body map and it’s certainly time to re-educate yourself!

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Ergonomics Input Devices Lifestyle

Microsoft “Natal” technology – the dawn of a new age in ergonomics?

In an interesting development, Microsoft has publicly shown at 2009 E3 a next generation games system controller labelled ‘Natal’ that is free of buttons and joysticks; the controller is essentially you. It relies on a sophisticated camera detection system to monitor the user’s motion and translate this motion into games controls. It also has a voice recognition engine. In an article on the BBC news site entitled ‘Microsoft previews new controller‘ a video shows a demonstration.

The reason that developments like this are exciting is that the games business, being a cutting edge, technologically advanced industry, usually pushes the boundaries of software and hardware development for the sake of market share.

Technology like this for, say, computer controls would ordinarily evolve a lot slower if there were a lesser need for it aside  from gaming. However, once developed, you can see how it could easily transform into some kind of gesture control for computer operating systems and applications. Who knows, you may even get a workout whilst doing a spreadsheet in the future!  Will a workout mat eventually replace the old desk?  Maybe we can eliminate the need for going to a gym!  Do employers only hire fit people in the future?

We are certainly at a crossroads with computers, where the basic mouse has been around too long and has created too many overuse injuries. It is more than time that we took computer input to a new level of evolution, and this may be the glimpse of what’s to come.

Whether this technology can save us from RSI related injuries is unknown, but it may help wean us off using a mouse. It may also lead to opportunities in computer use for people with all kinds of different disabilities, and not just RSI.

Is this the dawn of a new age in computer ergonomics, or is it just a gimmick ?

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Ergonomics RSI

Bio Feedback as a tool to combat RSI

Bio Feedback, is a method of measuring an individual’s stresses by monitoring muscle tension, sweat gland behaviour, heart rate etc. It is a non-invasive, non-medical process, designed to raise the awareness of the subject to how their body is reacting to their working environment.

Previously, while living in the US, I was sent for Bio Feedback monitoring, and was ‘hooked up’ to many electrode pads around my neck, shoulders, and arms. These were to be used to measure muscle tension in all the upper body limbs including the neck and shoulder area.  The sensors are connected to a computer which plots out the associated muscle tensions on a monitor, so you have real time visualisation of the various muscle tensions you hold in your upper body when operating computer equipment. You are actually seated in front of a real keyboard and mouse, and asked to type and enter data like you normally would in your daily life.

I was actually quite surprised at how much tension the signals showed, and was constantly told to relax the posture to drop the tension levels – not an easy task!

I had to really try to relax my whole body from my head to neck to shoulders to arms to wrist angle to make even the slightest difference. The difficulty was trying to hold it there whilst typing and using a mouse.

Emphasis was placed on relaxing muscles that control the upper limbs, as well as suggestions on how to become more relaxed in the mind both inside and outside of the office environment.

As with other RSI awareness education therapies, there was no magic bullet for me with Bio Feedback, but it certainly helped to raise my awareness of how tense my upper body limbs (including shoulders) became while operating computer equipment, and that really is an important part of the RSI education process.

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commentary Ergonomics Miscellaneous RSI

Brace yourself! – wrist braces and RSI

Wrist BraceI’ve been through a fair share of wrist braces in my time with RSI. Wrist braces are often the first item you will obtain after seeing a physical therapist about an RSI condition. They can be a lot of help to a RSI sufferer, but have to be used correctly, comfortably, and should not be used if they worsen your RSI symptoms.

There are a lot of braces out there, and what works for one person may not work for everyone. Braces are usually made out of neoprene or elasticated material coupled with a metal or hard plastic support to immobilise the wrist.

The primary use of the wrist brace should not be forgotten ie to rest wrist joints and forearm muscles that drive the wrist motion (forearm extensors, flexors), and reduce the pain associated from overuse injuries. While this may sound like a good thing, quite often if you wear a brace while using a computer, you will end up using other muscles in a strenuous way to do the same work, and can cause other injuries because of this.

There is no such thing as an ideal wrist brace, it really depends on what they are trying to do.

In the course of your RSI journey you way well encounter many different styles of wrist braces.

My general rules concerning wrist braces are –

  1. You shouldn’t jump in and buy a wrist brace without first seeking advice from a physiotherapist or doctor.
  2. Ideally, it should be used to rest (heal) the wrist and the overused (painful) muscles that drive the wrist extension and flexion, and not worn when using a keyboard or mouse.
  3. Exceptions to the rule are perhaps specific braces intended to stop excessive flexion of the wrist if you are prone to this. It’s a far better idea to be able to spot this flexion yourself and change it, but if you have difficulty doing this then a brace may be required. Alternatively have someone stand and watch over you with a big stick, you will learn faster then!
  4. Braces used to rest the wrist should not be too tight, just a snug fit. Over tightening can lead to restricted blood flow to the hand and wrists.
  5. Consider wearing a wrist brace at night in bed to avoid sleeping with your arms/wrists/hands in bent positions. It is critical that you don’t have a tight brace when doing this so as not to restrict blood flow.
  6. Don’t use them unless you have to. Its better to know your pain, when it happens and try to make adjustments to your  work practice etc to reduce the causes than it is to just ‘bandage up’ your injured wrists into a brace.
  7. Neoprene braces can be hot, sweaty, smelly and itchy to wear even for short periods of time. Better to look for ventilated elastic material ones.
  8. Wrist braces are not a good  universal fit for everyone, so you may have to make some adjustments to it to make it comfortable, including cutting bits out of it or adding some customised padding.
  9. Wear them at work and they do flag to your employer and colleagues that you have a RSI problem!

Remember though, wrist braces are not a solution to RSI, they are really only there to rest an injury and ease pain. To address your injury it is far better to try to make adjustments to your work to stop the motion that is causing you to have the pain. In other words, you should monitor your wrist, hand motions at a keyboard etc, and make adjustments to your bad working practices, including posture changes. You should also introduce more regular breaks away from your computer along with a good stretching routine and some physical activity.

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commentary Ergonomics Lifestyle RSI Tips

Breaking the RSI Pain Cycle

Breaking the RSI Pain CycleThe RSI pain cycle is the cycle of pain that a RSI sufferer can be locked into with their condition. The first diagram on the right (click image to enlarge) should allow a sufferer to understand the underlying mechanisms of the RSI pain cycle and realise that there may not be one single ‘magic bullet’ to address the RSI pain.

The RSI pain cycle once ‘locked’ into is a hard one to break free from. The common mistake is to address only one or two factors. If the sufferer is at an early stage of RSI, and is fortunate then one change eg ergonomic setup may be enough to break free, but any medium/long term sufferer who is trapped in this cycle should consider addressing most/all of the underlying trigger causes to allow the transition to an RSI free life. The second diagram (click image to enlarge) shows the key areas to address to break the cycle.Breaking The RSI Pain Cycle

You can also download the 2 diagrams in Breaking The RSI Pain Cycle (pdf)

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Lifestyle Miscellaneous RSI

Trigger Finger and RSI?

I’ve just been dealing with a bad case of trigger finger – a condition where a finger becomes locked in a gripped position.

It’s happening (quite badly) on the middle finger of my right hand – so much so that I have to use my other hand to prise the stuck finger open again! I also have minor trigger symptoms on some of my other fingers. It’s not just an inconvenient condition, it can be quite painful too! Usually trigger finger cases can clear up with some rest, ice and anti-inflammatory medication but this one has been with me for quite some time.

The trigger condition has been diagnosed as such by doctors, and has been treated twice with steroidal injections (to no avail). Surgery looks like the next option for me to relieve this condition, and is only a day patient procedure done under