INTRODUCTION:
A wheelchair is a chair with wheels, used when walking is difficult or impossible due to illness, injury, problems related to old age, or disability. These can include spinal cord injuries (paraplegia, hemiplegia, and quadriplegia), cerebral palsy, brain injury, osteogenesis imperfecta, motor neuron disease, multiple sclerosis, muscular dystrophy, spina bifida, and more.
Wheelchairs come in a wide variety of formats to meet the specific needs of their users. They may include specialized seating adaptions, individualized controls, and may be specific to particular activities, as seen with sports wheelchairs and beach wheelchairs. The most widely recognized distinction is between motorized wheelchairs, where propulsion is provided by batteries and electric motors, and manual wheelchairs, where the propulsive force is provided either by the wheelchair user/occupant pushing the wheelchair by hand ("self-propelled"), by an attendant pushing from the rear using handle(s), or by an attendant pushing from the side use a handle attachment.
TYPES OF WHEEL CHAIR:
There are a wide variety of types of wheelchair, differing by propulsion method, mechanisms of control, and technology used. Some wheelchairs are designed for general everyday use, others for single activities, or to address specific access needs. No single model or size of wheelchair can meet the needs of all users, and the diversity among users creates a need for different types of wheelchair. Those selecting wheelchairs, in consultation with the user, need to understand the physical needs of the intended user and how they intend to use the wheelchair, as well as knowledge of the reasons for different wheelchair designs.
WHEEL CHAIR FRAME:
The composition of the frame is a key factor in the functionality of the wheelchair. The steel being the most usual, is the heaviest but also the cheapest. A wheelchair with aluminium frame is much lighter and then much easier to propel, but also more expensive. It can also find frames made of very light materials like specific aluminium, titanium and carbon. They are commonly used in rigid frame wheelchairs and have a very high price.
The frame of a wheelchair can also be either rigid (fixed), or foldable. The energy efficiency for the user to propel is double in a wheelchair with a rigid frame, taking an average of 15-20% of the impulse, while a folding wheelchair only uses on average of 5 - 8% of the impulse.
Both rigid frame and folding wheelchairs have advantages and disadvantages. The best choice will depend on the wheelchair users lifestyle, how they transfer in and out of transport and their personal preference.
FOLDING FRAME:
The folding frame types of wheelchairs consist of a folding X Style Frame. Most frames fold when the locking mechanism is released for folding and tend to include removable foot rests which allow for easy folding. Most frames are made from aluminum or titanium and are heavier than the rigid frame. As with anything with movable parts, the folding wheelchair is not as durable as the rigid frame wheelchair. Therefore maintenance is required more frequently to keep all parts in good working order. Similarly in a folding wheelchair, part of the propulsion energy is lost in movements within its structure and all points of articulation.
RIGID FRAME:
A rigid frame wheelchair consists of a single welded frame on which the individual sits. This can incorporate either a fixed back rest or a folding back rest where the back of the chair is able to fold down. It also incorporates wheels can be removed with a quick release mechanism to enable easy storage and transportation of the wheelchair. In most cases these frames are lightweight and are made from either aluminum or titanium, and in some cases from carbon fiber, A lightweight rigid frame wheelchair can weigh as little as 10 lbs without the wheels. The advantage of these types of wheelchairs are that they have fewer moving parts, which means they are generally stronger and last longer than the folding wheelchair. Other advantages for the rigid frame is that it is easy to handle and is somewhat lighter than one similar folding wheelchair. However, the folding wheelchair is generally more comfortable for transport and storage by occupying less space.
| Physical Needs | Intended Use |
|---|---|
| The ability to adjust or customize a wheelchair to meet the user’s physical needs will vary, depending on the type of wheelchair. Wheelchairs should be available in at least a small range of sizes and allow some basic adjustments. Wheelchairs designed for temporary uses (e.g. to be used in a hospital to move patients from one ward to another) are not designed to provide the user with a close fit, postural support or pressure relief, while for long-term users, a wheelchair must fit well and provide good postural support and pressure relief. A range of seat widths and depths, and the possibility to adjust at least the footrest and backrest height are important in ensuring that the wheelchair can be fitted correctly. Other common adjustments and options include cushion types, postural supports and an adjustable wheel position. Highly adjustable or individually modified wheelchairs are designed for long-term users with special postural needs. Such wheelchairs often have additional components added to help support the user. | Wheelchair designs vary to enable users to safely and effectively use their wheelchair in the environment in which they live and work. A wheelchair that is used primarily in rough outdoor environments needs to be robust, more stable and easier to propel over rough ground. A three-wheeled wheelchair that would be well suited to outdoor use. In comparison, a wheelchair that is used indoors on smooth surfaces needs to be easy to manoeuvre in small indoor spaces. Many users live and work in a range of settings, and a compromise is therefore often necessary such as a robust wheelchair with a relatively short wheelbase but large castor wheels. This wheelchair could be used both indoors and outdoors. Users need to be able to get in and out of the wheelchair easily, to propel it efficiently and to repair it. Users may need to transport their wheelchair, for example in a bus or car. Different wheelchair designs allow for wheelchairs to be made more compact in different ways. Some are cross-folding, while others have quick-release wheels and the backrest folds forwards. |
- Poor road designs that do not consider the needs of wheelchair users
- Drivers not sensitive to the road needs of wheelchair users;
- Inaccessible buildings;
- Lack of easily accessible skilled service providers for wheelchair maintenance;
- Innaccessible and costly public transport with limited space available for wheelchair users
CHOICE OF APPROPRIATE WHEELCHAIR:
A wheelchair is appropriate when it meets the individual’s needs and environmental conditions; provides proper fit and postural support based on sound bio-mechanical principles; is safe and durable; is available and can be accessed, maintained and sustained in the country at the most economical and affordable price. An appropriate wheelchair can assist in opening up a new world for the user, from exclusion to inclusion, participation in all societal activities, and sports and recreation, which all lead to independence, better health and improved quality of life.
Mobility devices are appropriate for people who experience a wide range of mobility difficulties as a result of a broad spectrum of health conditions and impairments, including amputation, arthritis, cerebral palsy, poliomyelitis, muscular dystrophy, spinal-cord injury, spina bifida, stroke and are also relevant for older people who experience mobility difficulties. Assistive technologies such as wheelchairs have been shown that, when appropriate to the user and the user’s environment, they have a significant impact on the level of independence and participation which people with disabilities are able to achieve. This also reduces the burden of care and has been reported to reduce the overall need for formal support services.
BENEFITS OF WHEELCHAIR:
MOBILITY:
An active lifestyle has been proven to have both physical and mental health benefits with individuals participating in physical activity shown to have a reduced risk of cardiovascular disease, non-insulin-dependent diabetes mellitus, osteoporosis, osteoarthritis, and several cancers. An appropriate wheelchair provides the user the freedom to move around, allowing the user to access day to day physical activity as they push around conducting activities of daily living increasing overall physical activity levels and day to day mobility. It also provides the greatest possible opportunity for independence and do the things they want to do, allowing individuals to move within their home more easily, provides increased comfort and a more active lifestyle.
INDEPENDENCE:
Difficulty with ambulation, need to frequently lean on someone or hold onto their arm as they walk next to you, decreased balance fear of falling can cause individuals to become isolated from friends and family. A wheelchair that is functional, comfortable and can be propelled efficiently can result in increased levels of activity. Independent mobility and increased physical function can reduce dependence on others. Thus, wheelchair user's can be more independent and more in control of their own life. Individuals who experience the least discomfort when sitting are often more productive. Users who are able to spend more time in their wheelchair will have more opportunities for participating in day-to-day life along with others in the household, greatly improving their quality of life.
HEALTH:
A wheelchair can improve the user's health in many ways. A wheelchair that is functional, comfortable and can be propelled efficiently can result in increased levels of physical activity, thus improving both physical and mental health. A well fitting wheelchair with cushion combined with adequate user training can reduce common problems, such as pressure sores, the progression of deformities or contractures, and other secondary conditions associated with poor postures. Other benefits, such as improved respiration and digestion, increased head, trunk and upper extremity control and overall stability, can be achieved with proper postural support. Maintenance of health is an important factor in measuring quality of life. These factors combined serve to increase access to opportunities for education, employment and participation within the family and the community.
SELF ESTEEM AND CONFIDENCE:
Self-esteem is described as a general evaluation of one’s self- concept or sense of personal worth and adequacy with high self-esteem linked to many positive health outcomes in persons with a disability including reduced depression and higher life satisfaction and well-being. Wheelchairs, have been shown to have a profound influence on quality of life and participation. Wheelchair users may become more confident and have more self esteem when they have a wheelchair, often viewed as an extension of the users body, that fits them and which they can use well, therefore the chair’s weight and dimensions effect the person’s ability to negotiate through the home and in the community. Research has shown that wheelchair users with higher self-esteem displayed increased participation levels independent of gender, age and disability type.
QUALITY OF LIFE:
With maintenance of health there is increase access to opportunities for education, employment and participation within the family and the community. These factors also contributes in increasing quality of life of wheelchair user.
ACCESS TO COMMUNITY LIFE:
Access to community life including community participation, involving both being active in family and community life with engagement in typical roles and responsibilities in society plays a key role in the health and well-being of wheelchair users and has been shown to be a key factor in preventing health deterioration in individuals with spinal cord injury. Being able to access the community, move outside the home is important for social participation and engagement and many positive health indicators as well. Having an appropriate wheelchair improves access to the community and enables wheelchair users to be more involved in community life i.e. it enables the user to go to the work or school, visit friends, attend places of worship or other community activities. Additionally, appropriate wheelchairs influence individual autonomy because they facilitate both mobility and activities of daily living both in the home and in the community.
ECONOMY:
A wheelchair often makes all the difference between being a passive receiver and an active contributor. Economic benefits are realized when users are able to access opportunities for education and employment. With a wheelchair, an individual can earn a living and contribute to the family’s income and national revenue, whereas without a wheelchair that person may remain isolated and be a burden to the family and the nation at large. Similarly, a wheelchair that is not durable will be more expensive owing to the need for frequent repairs, absence from work and eventual replacement of the wheelchair. Providing wheelchairs is more cost-effective if they last longer. It is also more cost-effective if users are involved in selecting their devices and if their long-term needs are considered.
For society, the financial benefits associated with the provision of wheelchairs include reduced health care expenses, such as those for treating pressure sores and correcting deformities. A study from a developing country reported that in 1997, 75% of those with spinal cord injuries admitted to hospital died within 18–24 months from secondary complications arising from their injuries. In the same place, the incidence of pressure sores decreased by 71% and repetitive urinary tract infections fell by 61% within two years as a result of improvements in health care training and appropriate equipment, including good wheelchairs with cushions.
COMMON BARRIERS FOR WHEELCHAIR:
FINANCIAL BARRIERS:
Some 80% of the people with disabilities in the world live in low-income countries. The majority of them are poor and do not have access to basic services, including rehabilitation facilities. The International Labour Organisation reports that the unemployment rates of people with disabilities reach an estimated 80% or more in many developing countries. Government funding for the provision of a wheelchair is rarely available, leaving the majority of users unable to pay for a wheelchair themselves.
PHYSICAL BARRIERS:
Majority of wheelchair users are poor, with inaccessible surroundings. They also live where road systems are poor, there is a lack of pavements, and the climate and physical terrain are often extreme. In many contexts, public and private buildings are difficult to access in a wheelchair. These physical barriers place additional requirements on the strength and durability of wheelchairs. They also require that users exercise a high degree of skill if they are to be mobile.
ACCESS TO SERVICE:
In many developing countries, only 3% of people with disabilities who require rehabilitation services have access to them. According to a report of the United Nations Special Rapporteur, 62 countries have no national rehabilitation services available to people with disabilities. This means that many wheelchair users are at risk of developing secondary complications and premature death that could be avoided with proper rehabilitation services.
EDUCATION AND INFORMATION:
Many users have difficulty in accessing relevant information, such as on their own health conditions, prevention of secondary complications, available rehabilitation services and types of wheelchair available. For many, a wheelchair service may be their first access to any form of rehabilitation service. This places even more emphasis on the importance of user education.
PERSONAL CHOICE:
Users are rarely given the opportunity to choose the most appropriate wheelchair. Often there is only one type of wheelchair available (and often in only one or two sizes), which may not be suited to the user's physical needs, or practical in terms of the user's lifestyle or home or work environment. According to the Convention on the Rights of Persons with Disabilities, “States Parties shall take effective measures to ensure personal mobility with the greatest possible independence for persons with disabilities … by facilitating the personal mobility of persons with disabilities in the manner and at the time of their choice, and at affordable cost”.
STIGMA:
Community, Government, and Non-Government ignorance and stigma in relation to people with a disability and wheelchair use including poor understanding of the principles of a quality wheelchair, and reduced rights of the users to access their environment / community which include:
- Poor road designs that do not consider the needs of wheelchair users
- Drivers not sensitive to the road needs of wheelchair users;
- Inaccessible buildings;
- Lack of easily accessible skilled service providers for wheelchair maintenance;
- Innaccessible and costly public transport with limited space available for wheelchair users
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