The On Track Study is a large multi-site collaboration involving researchers, therapists, families, and children with cerebral palsy (CP) from across Canada and the United States. The researchers need to better understand how young children who have difficulties with movement activities progress and develop in their balance abilities, fitness, strength, health, range of motion, self-care, everyday play, and activity participation. This study will determine how young children with cerebral palsy or gross motor delays progress in many aspects of their physical development and participation in daily life. The information collected from this study will help therapists and parents monitor if a child is developing as expected in his or her physical development and participation. Then, the health care professionals working with children can use the results of this study, in combination with the previously completed Move \& PLAY study results, to provide the services that are most beneficial and meaningful for each child and their family members.
Trained therapist assessors will measure the primary and secondary impairments (i.e., balance, range of motion limitations, and strength) on 5 occasions (6-months apart over 2 years). Parents will complete questionnaires to track changes in the child's endurance, health conditions, and participation in self-care and recreation activities, at the same data collection points. The researchers will use these 5 data collection points to develop reference percentiles and will present the data so that therapists can assist families to determine if children with CP are developing as expected, better than expected, or more poorly than expected, depending on their functional ability levels. The researchers will create longitudinal developmental curves for impairments, health conditions, and participation variables by estimating the average pattern of change, important individual variations in the pattern of change between children, and the degree of consistency over time within children. Establishment of longitudinal developmental curves will provide easily understood and useful tools for families and service providers to discuss questions about how well their children are doing in relationship to other children with CP of similar functional ability levels. The researchers will then utilize service data collected from parents and children's progress on the longitudinal developmental curves to develop recommendations for rehabilitation service provision for children with CP across functional ability levels. Having this information should assist with collaborative decision-making among family members and service providers that efficiently utilizes rehabilitation services to meet families' goals. An additional sub-study is to collect direct physical activity measurements from a sub-set of the children in the larger study. These data will be examined in relationship to other measures of endurance and participation.
Study Type
OBSERVATIONAL
Enrollment
724
Mercer University
Atlanta, Georgia, United States
University of Oklahoma
Oklahoma City, Oklahoma, United States
Drexel University
Philadelphia, Pennsylvania, United States
University of Washington
Seattle, Washington, United States
University of Western Ontario
London, Ontario, Canada
Early Clinical Assessment of Balance (ECAB)
The ECAB addresses postural control and balance across the developmental sequence. Part I has 7 items (with numbers 1,4,5,6,7 scored bilaterally): 1) lateral head righting, 2) head righting in extension, 3) head righting in flexion, 4) rotation in the trunk, 5) equilibrium reactions in sitting, 6) protective extension to the side, and 7) protective extension backwards. The items are scored on a scale of 0 = no response to 3 = complete \& consistent response. Part II has 6 items: 1) sitting with back unsupported but feet supported, 2) moving from sitting to standing, 3) standing unsupported with eyes closed, 4) standing unsupported with feet together, 5) turning 360 degrees in standing unsupported, 6) placing alternate foot on the step while standing unsupported. These items are scored on a variable scale, which is weighted due to the increased difficulty of the items. Part I and Part II item scores are summed for a total score between 0-100. A higher score represents better balance.
Time frame: up to 24-months
Spinal Alignment and Range of Motion Measure (SAROMM)
The SAROMM addresses joint range of motion, extensibility, and spinal alignment. The Spinal Alignment Subscale contains 4 items and the Range of Motion and Extensibility Subscale has 22 items. Each item is scored on a 5-point Likert scale, with 0 = normal alignment and range with active correction, 1 = normal alignment and range with passive correction, and 2, 3, and 4 indicating fixed deformities or contractures that are "mild", "moderate", or "severe" based on pre-specified cut points, and supported by photographs in the training manual. Scores are reported by calculating the average of scores across all 26 items. Scores range from 0-4. A lower score represents better range of motion and alignment.
Time frame: up to 24-months
Functional Strength Assessment (FSA)
The FSA addresses force production ability in the neck and trunk flexor and extensor and bilateral hip and knee extensor and shoulder flexor muscle groups. Each muscle group is rated on a five-point ordinal scale from 1 = only flicker of contraction or just initiates movement against gravity to 5 = full available range against gravity and strong resistance. Scores are reported by calculating the average of scores across all 8 items. Scores range from 1 to 5. A higher score represents better force production ability.
Time frame: up to 24-months
Six and One-minute Walk Test (6MWT, 1MWT)
The 6MWT and 1MWT are submaximal, clinical exercise tests, in which the total distance traveled in 1-minute and 6-minutes, under controlled conditions, are measured. Within this study, the 6MWT/1MWT was conducted indoors or outdoors on a large, flat, hard terrain for children who were 3 years or older and who were walking without another person's assistance (GMFCS I, II, III). A surveyor's measure wheel was used to calculate the total distance (# of feet) walked and a stopwatch to keep track of the allocated time. Standardized directions are used to encourage the child to walk as far as possible in the time.
Time frame: up to 24-months
Early Activity Scale for Endurance (EASE)
The EASE includes 4 activity-based items requiring parents to rate their children's levels of energy, the frequency and need for rest, and the average amount of time their children can engage in physical activity. Scoring for each item is on a Likert scale of 1-5 with the value of 1 = "Never" to 5 = "Always". The four questions include: 1) "my child's physical activity level is similar to other children his or her age," 2) "my child has a high physical energy level and rarely needs to take rests when moving himself or herself around during daily activities and play time," 3) "my child does enough activity so that he or she is breathing quickly or gets flushing in his or her face at least one time each day," and 4) "my child spends a lot of his or her play or free time doing activities that require lots of physical energy." Scores are reported by calculating the average across all 4 questions. Scores range from 1 to 5. A higher score represents better endurance for activity.
Time frame: up to 24-months
Child Health Conditions Questionnaire
The Child Health Conditions questionnaire is a caregiver-completed measure of the extent to which health problems influence children's activities. Parents respond "yes" or "no" as to whether the child has each of the 16 health problems listed. If the child does not have a problem, a score of 0 is imputed for the next part of the question. If the child has a problem, parents are asked to judge the extent to which the problem affects the child's daily activities. This is measured using an 8-point ordinal scale from 0="does not have the problem", 1= "not at all" to 7 = "to a very great extent". Scores reported are the Child Health Conditions Impact average scores calculated by averaging across all 16 items. Scores range form 0 to 7. A higher score represents a greater impact of health conditions on daily activities.
Time frame: up to 24-months
Child Engagement in Daily Life Measure (CEDL): Part 1 - Participation
CEDL is a 40-item caregiver-completed questionnaire to estimate children's participation. Part 1 captures participation of the child in family/community and leisure/recreational activities. Part 1 is scored on two 5-point Likert scales: 1) how often a child participates (1=almost never to 4=very often), and 2) the degree of enjoyment (1=not at all to 5 a great deal). A Rasch analysis has converted scores into 0-100 scaled scores. A higher score represents a higher degree of 'leisure.'
Time frame: up to 24-months
Child Engagement in Daily Life Measure (CEDL): Part 2 - Self-Care
CEDL is a 40-item caregiver-completed questionnaire to estimate children's participation. Part 2 measures self-care, defined as the degree that the child participates in daily feeding, dressing, bathing, and toileting. Part 2 is scored on a 5-point Likert scale from 1= 'does not do the activity' to 5= 'does the activity independently most of the time'. The scale distinguishes the need for physical assistance from a person, the ability to complete the activity under various conditions, and the amount of the activity able to complete. A Rasch analysis has converted scores into 0-100 scaled scores for both parts. A higher score represents a higher degree of self-care (Part 2) participation.
Time frame: up to 24-months
Services Questionnaire
The Services questionnaire is a caregiver-completed measure of the medical and rehabilitation services provided to the child in the period since the last data collection point. The variables used for the analysis of the relationship between services and four outcomes are reported. These data are: mean amount of physical, occupational, and speech and language therapy service sessions per year (recorded in 5 ordinal intensity times/year categories: 1=0-1, 2=2-30, 3=31-52, 4=53-155, 5=\>156), mean family centeredness across 14 items (scored in 5 ordinal categories: 1=not at all, 2=small, 3=moderate, 4=great, 5=very great extent), mean rating of parents' perceptions that services were meeting their children's needs (scored on ordinal scale 1=not at all, 2=small, 3=moderate, 4=great extent, 5=completely), mean rating of the extent to which therapy was focused into 8 categories (scored in same ordinal categories as family centeredness above). Higher scores indicate a great amount or extent.
Time frame: up to 24-months
Percentage of All Participants According to Gross Motor Function Classification System (GMFCS)
The GMFCS is classification system based on functional body movement ability. GMFCS levels vary from I to V, with a level closest to I reflecting higher function. The general descriptions of a child at 6 to 12 years of age are: I: Walks without limitations; II: Walks with limitations; III: Walks using a hand-held mobility device; IV: Self-mobility with limitations; may use powered mobility; and V: Transported in manual wheelchair. Descriptors for the five levels vary by age of the child. Children were classified by consensus between parents and assessing therapists by comparing the child's functional movement ability to descriptors for each level of classification.
Time frame: Baseline
Manual Ability Classification System (MACS)
The MACS is a classification system based on functional hand movement ability. MACS levels vary from I to V, with a level closest to I reflecting higher function. The general descriptions for each level are: I: Handles objects easily \& effectively; II: Handles most objects with somewhat reduced quality and/or speed; III: Handles objects with difficulty, needs help to prepare and/or modify activities; IV: Handles a limited selection of easily managed objects; and V: Does not handle objects and has severely limited ability to perform even simple actions.
Time frame: Baseline consensus classification used for children 2 years and over at Baseline and 12M consensus classification used for children under 2 years at Baseline)
Communication Function Classification System (CFCS)
The CFCS is a classification system based on functional communication ability. CFCS levels vary from I to V, with a level closest to I reflecting higher function. The general descriptions for each level are: I: Effective sender/receiver with familiar/unfamiliar partners; II: Effective but slower paced sender and/or receiver with familiar/unfamiliar partners; III: Effective sender \& receiver with familiar partners; IV: Inconsistent sender and/or receiver with familiar partners; and V: Seldom effective sender \& receiver with familiar partners.
Time frame: Baseline consensus classification used for children 2 years and over at Baseline and 12M consensus classification used for children under 2 years at Baseline)
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