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SCI Forum Report & Video


Aging with a Spinal Cord Injury

Presented on June 9, 2009, by Rina Reyes, MD, Medical Director, UW Medicine SCI Rehabilitation Program and Assistant Professor, UW Department of Rehabilitation Medicine, and Ivan Molton, PhD, Clinical Psychologist and Acting Assistant Professor, UW Department of Rehabilitation Medicine. Read the report or watch the video from this page.

Don't miss this additional content on our site about aging with SCI:
In the video "Everybody's Doing It! Aging with SCI," five individuals with SCI—who, taken together, have been living with SCI for 189 years— discuss their experiences and share their methods for coping with changes and staying healthy and positive as they age.

 

Presentation time 81 minutes. After watching the video, please complete our two-minute survey.

You can also watch this video on YouTube.

For a complete list of our videos, click here.

Report

 

Aging with a Spinal Cord Injury

Table of Contents

Understanding and Managing Physical Changes

By Rina Reyes, MD

 

Life Expectancy

Over the past few decades, life expectancy in the general population has increased significantly. In the SCI population, this increase has been even more dramatic. In 1940, average life expectancy after SCI was only 18 months. By 1998, persons with SCI had an estimated life expectancy that showed greater resemblance to that of the general population: for those with complete tetraplegia (quadriplegia); life expectancy was 70 percent of the life expectancy of the general population; for those with complete paraplegia it was 86 percent; and for anyone with significant motor preservation it was about 92 percent. This increased life expectancy is not only due to better survival from initial injuries, but also due to improved ability to recognize and treat secondary complications such as bladder infections and pneumonia.

As people with SCI are living longer, they are likely to experience many of the chronic health problems that arise in the general population with aging. The goals for aging with SCI are the same as for everyone else: to minimize the impact of aging and to maintain overall health, independence and life satisfaction.

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Aging with Disability

There is ongoing debate about the effect of disability on aging, and vice versa. Pentland (2002) coined the phrase “double jeopardy” or “doubly disadvantaged” to describe how those with existing disabilities may age prematurely. On the other hand, age has been called a “leveler” in the sense that persons with disabilities have learned how to adapt to major physical changes, whereas people without disabilities have not and therefore may struggle more when confronting the physical decline and functional changes associated with aging. Conversely, coping strategies may have been stretched to the limit after a lifetime of disability so that the increased demands of aging tip the balance toward greater functional decline (Trieschmann). Researchers have also theorized that there are accelerated aging affects among those who have spinal cord injuries.

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Health risks and aging in SCI

The primary causes of death in the SCI population are respiratory disease, diseases of the urinary system and heart disease, in that order. (By comparison, the top causes of death in the general population are heart disease, followed by cancer and stroke.) The SCI population has a higher incidence of the following conditions (Weaver and LaVela):

It is important to focus preventive care on the high risk conditions specific to the SCI population.  

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Cardiovascular System

Certain studies have revealed that coronary artery disease (CAD) is a contributing factor in 22.4%  of deaths in SCI (DeVivo, 1989) and that individuals with SCI are twice as likely to die if they have a cardiovascular event (Kocina).

Several risk factors for CAD occur more frequently in individuals with SCI: lipid disorders, diabetes, obesity, lack of physical activity, early changes in body composition that result in a higher percentage of body fat, and occasionally high blood pressure. Furthermore, CAD may be harder to diagnose in the SCI population due to lack of sensory symptoms.

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Physical fitness

There are many well-documented benefits to exercising, including improving lipid profile, reducing the incidence of diabetes, increasing lean muscle mass (which in turn enhances fat metabolism) and improving depression and quality of life.

The American College of Sports Medicine (ACSM) recommends that people with SCI exercise three to five times per week for 20 to 60 minutes of moderate-intensity exercise per session. Moderate intensity is defined as 50 to 80 percent of the peak heart rate. Unfortunately, we don't know what the peak heart rate should be for individuals with SCI. For those with high level injuries, where they may not have as good regulation of their heart function, the peak heart rate might be artificially lower. In the general population peak heart rate is estimated at 220 minus your age. Exercise intensity can be determined in the SCI population from assessments using arm ergometry, or can be estimated using the Borg Rate of Perceived Exertion Scale (learn about this at http://www.cdc.gov/physicalactivity/everyone/measuring/exertion.html).

Different ways to achieve cardiopulmonary exercise includes arm crank ergometry, wheelchair propulsion, swimming, wheelchair sports, walking with devices, seated aerobics and electrical stimulation.

More information about exercise and disability can be found on the National Center on Physical Activity and Disability (NCPAD) website at http://www.ncpad.org/.

Also see our SCI Forum report and video on Universal Fitness, and our SCI Update newsletter issue devoted to Being Active after SCI.

Exercise cautions

The goal of any exercise activity is to improve fitness and strength without resulting in injury.

 Strategies to reduce cardiovascular risk

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Musculoskeletal System

Spinal cord injury increases your risk for shoulder dysfunction, early degenerative arthritis and osteoporosis.

Pain from overuse syndrome, especially the upper limb (shoulder, arm, wrist, hand)

Bone loss and osteoporosis

Preserving musculoskeletal health

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Respiratory System

Respiratory disorders are the leading cause of death after SCI.

Everyone loses a little respiratory function over time. There's a gradual age-related decline in our pulmonary capacity due to loss of lung elasticity, decreased number of alveoli (the smallest unit of our respiratory tree), and reduced vital capacity (the ability to take a deep breath voluntarily).

Individuals with all levels of SCI are at risk for respiratory dysfunction. While the diaphragm and chest muscles receive their nerve supply from the cervical area of the spine, injury to the thoracic area impairs the abdominal muscles, which help with forceful expiration and cough to effectively expel secretions.

Types of SCI-related respiratory dysfunction.

Managing the respiratory system

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Gastrointestinal System

Normal consequences of aging on the gastrointestinal system that lead to increased constipation and hard stools:

This means the problems with constipation—already common in SCI—may worsen. If constipation, distention or incontinence start to increase as you age, follow these guidelines:

While people with SCI do not have a higher rate of colorectal cancers than the general population, some of the early warning symptoms may go undetected due to lack of sensation. Therefore, it is advisable to strictly adhere to the recommended screening exams, even though the preparation for and logistics of the exam may be challenging.

For more information about bowel management, see our Staying Healthy after a Spinal Cord Injury pamphlets.

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Urinary System

Changes to the urinary system that occur as part of the normal aging process include:

Since the risk for urinary tract infections and stones is already higher for the SCI population, the risk for kidney dysfunction increases with age. This is why we recommend upper urinary tract surveillance every year. Although previously the leading cause of death after SCI, genitourinary complications now represent only 2.3% of the deaths in this population because of active surveillance and appropriate treatment of urinary disease such as infections.

For those who have been using chronic indwelling or Foley catheters for many years, there is a slightly increased risk for bladder cancer, particularly among smokers. Preliminary studies suggest that there is no increased risk for developing prostate cancer among men with SCI.

Recommendations:

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Nervous System

Usual aging is associated with a decrease in strength, reaction time, vibratory sensation, fine motor function, agility, reflexes, and balance. Individuals with SCI may experience the same changes, but are additionally at higher risk for certain nerve entrapment problems, such as carpal tunnel syndrome or compression of the ulnar nerve either at the wrist or elbow. As many as 63 percent of individuals with paraplegia have entrapment neuropathies.

Rehab providers also watch for neurological changes such as any loss of feeling or change in motor strength in areas where you typically have normal strength and sensation, new-onset of autonomic dysreflexia, or changes in blood pressure and spasticity control, as these may signal formation of a cyst at the site of your injury (syringomyelia or syrinx). If you notice any evidence of neurologic deterioration, notify your medical provider. If he or she suspects a syrinx, imaging studies such as an MRI may be requested. Surgery for the cyst may not always be recommended immediately, because the surgical procedure itself can result in certain complications and the long-term effectiveness of procedures such as shunt or drain placement may be questionable. Surgeons may be reluctant to intervene in the formation of the cyst unless there is clear or progressive evidence for motor or other modality loss that negatively impacts your function.

Nerve entrapment such as carpal tunnel syndrome can be treated with relative rest, since it's usually impossible to completely stop using your limb. Splinting, or in some cases proceeding to surgery, may be recommended in an attempt to spare as many of the nerve fibers as possible. Any surgery will require post-surgical activity restrictions, equipment alterations or additional care during the recovery period. For instance, a surgeon may advise a manual wheelchair user who undergoes carpal tunnel release to avoid wheelchair pushing and other heavy hand use for several weeks, which may require temporary use of power mobility or arranging additional help with self-care and transfers.

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Skin

Several changes that happen to the skin as part of the usual aging process increase the risk for pressure sores in people with SCI:

For those who have had chronic pressure sores, there is a risk of developing cellular changes in the wound bed or infections that heal poorly with usual treatment.

Pressure sore prevention:

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Changing Equipment Needs

Modification in equipment or new therapies may be required because of changes associated with aging, such as:

Manual wheelchair users may at some point need to progress to using power mobility or power assist wheels to preserve upper extremity function. Those who are ambulatory may choose to use a wheelchair as their primary means of mobility if this helps preserve upper limb function.

All equipment should be assessed, including bathroom ADL equipment, seating systems, cushions and mattresses. Therapy interventions may be necessary for shoulder protection and conservation strategies. Energy conservation or work simplification strategies may also be helpful for those who have considerable fatigue.

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Women aging with SCI

Women have special health care needs related to reproductive health and hormonal changes. But we also know that women experience pain differently than men do. And this is certainly true after SCI as well. Women are at greater risk for osteoporosis and approach fracture threshold in their bone mineral density faster than men do after SCI. The risk for osteoporosis and bone loss increases as they approach and reach menopause.

For more information, see our SCI Forum report on Women and SCI.

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Your health care team

If you have an SCI, your health care team should ideally include a rehab provider who is familiar with SCI. Because rehab physicians cannot possibly keep up with the volume of primary care literature being published for other general medical conditions, regularly seeing a primary care provider is strongly advised as well. You may also need a urologist or a neurological or orthopedic surgeon, depending on what problems arise. For individuals with higher injury levels affecting their respiratory function, a pulmonary physician may be required. The rehab provider is usually in the best position to coordinate all this care, and to provide the team with recommendations or discuss unique considerations related to your injury to optimize your chances of living and aging well with SCI.

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Aging with Spinal Cord Injury: Social and Psychological Factors
By Ivan Molton, PhD

 

Ages & Stages

Geropsychology is the field of aging and psychological  health. When clinicians and researchers talk about older adults, they group them into stages according to the psychological challenges typical of those ages.

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Depression

Given the problems and decline associated with aging, we might expect older adults to be more depressed than younger people. The research suggests otherwise, however: only between 1% and 3%  of people over age 65 meet the criteria for major depression, compared to about 8% of the general population.

In the nondisabled population, significant depression peaks during adolescence and the early 20s, with another slight spike around middle age. But older adults, those over 65, report better psychological adjustment than any other age group. This also is true for people with physical disabilities like SCI. Most older adults are not depressed.

Aging with SCI generally means more physical limitations and requires more caregiving generally, greater use of adaptive technologies, equipment changes (as from a manual to a power wheelchair), and learning new skills such as new transfer techniques and positioning. In spite of this, older adults with SCI do not tend to become more depressed.

For more information about depression, see our pamphlet Depression and Spinal Cord Injury .

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Psychological Adjustment & Emotional Well-Being

A major study of aging with SCI done by Krause & Broderick (2005) demonstrated that psychological adjustment actually improved over time in people aging with SCI.  So even though the older adults with SCI reported more physical limitations, fewer weekly visitors and less satisfaction with health, their emotional well-being was as high or higher than younger people with SCI. Why? Here are some theories:

The biggest predictors of quality-of-life among older adults are the things we would expect: family and friends, activities you enjoy, and feeling productive.

Other factors that impact psychological health for people aging with SCI:

What are the biggest psychological problems for older adults with SCI?

As physical independence decreases, one's social support network is also getting older. This is the biggest issue that older people with SCI report to us: my body is becoming more challenging and harder to manage, but at the same time my friends who used to be able to give me a hand are getting older and declining.

Unless one is very lucky, finances tend to get tighter in later adulthood. These are basically the same problems as for older adults without a SCI, but the implications are more severe, as when one has to make a shift from using one's friends as a network of support to having to pay professional caregivers to be the network of support. That's a tricky psychological transition for a lot of people.

When we ask older people with SCI to describe their concerns, here's what they talk about,

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Tips for staying psychologically healthy as you age with SCI:

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References

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