Table 1Characteristics, causes, and prevalence of multiple sclerosis, cerebral palsy, and spinal cord injury

Causes, Prevalence, and CharacteristicsCerebral PalsyMultiple SclerosisSpinal Cord Injury
EtiologyTraumatic injury to a developing brain before, during, or after birthProgressive autoimmune disease of the central nervous system with variable disease patterns; 10% primary progressive and others progressive after initial relapse and remitting courseUsually traumatic cord injury (motor vehicle accidents, falls, violence, sports); nervous system above the lesion is intact
Prevalence1.5 to more than 4 per 1,000 live births; males 30% greater than females; 764,000 children and adults living with CP in the United States6Nearly 1 million people in the United States have MS; average age onset 30 years old and females 2 to 3 times males7Estimated 282,000 in the United States with SCI; recent evidence puts the average age 43 years old; 78% male8,9
Mobility40% limitations in walking and 30% use walkers or wheelchairsMobility limitations generally occur later in disease course; after 45 years of disease, on average 76% of individuals require ambulatory aid and 52% bilateral assistance10Variable and depends on level and completeness of injury; generally stable after injury and initial rehabilitation
Associated morbidity40% of children with CP have intellectual disability, 35% epilepsy, and more than 15% had vision impairmentSequela of immune suppression including urinary and respiratory infections, seizures, other autoimmune diseases, visual abnormalities, ataxia11Respiratory complications, thromboembolism, autonomic dysreflexia, orthostatic hypotension, bladder dysfunction, neurogenic bowel, spasticity, pain, pressure ulcers12
Usual intent of physical activityIncrease mobility and overall level of function as component multimodality efforts during childhood developmentMaintain mobility and attenuate limitations of progressive disease; because those with MS often have normal life expectancies the benefits of exercise for the general population would also applyMaximize functional abilities; recreation; because long-term sequela SCI better prevented/managed, longer term health benefits of regular exercise also are relevant

Abbreviations: CP = cerebral palsy; MS = multiple sclerosis; SCI = spinal cord injury

From: Introduction

Cover of Physical Activity and the Health of Wheelchair Users: A Systematic Review in Multiple Sclerosis, Cerebral Palsy, and Spinal Cord Injury
Physical Activity and the Health of Wheelchair Users: A Systematic Review in Multiple Sclerosis, Cerebral Palsy, and Spinal Cord Injury [Internet].
Comparative Effectiveness Review, No. 241.
Selph SS, Skelly AC, Wasson N, et al.

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