Predictors of Independent Walking in Young Children With Cerebral Palsy.

BACKGROUND: The attainment of walking is a focus of physical therapy intervention in children with cerebral palsy (CP) and may affect their independence in mobility and participation in daily activities. However, knowledge of determinants of independent walking to guide physical therapists' decision making is lacking. OBJECTIVE: The aim of this study was to identify child factors (postural control, reciprocal lower limb movement, functional strength, and motivation) and family factors (family support to child and support to family) that predict independent walking 1 year later in young children with CP at Gross Motor Function Classification System (GMFCS) levels II and III. DESIGN: A secondary data analysis of an observational cohort study was performed. METHODS: Participants were 80 children with CP, 2 through 6 years of age. Child factors were measured 1 year prior to the walking outcome. Parent-reported items representing family factors were collected 7 months after study onset. The predictive model was analyzed using backward stepwise logistic regression. RESULTS: A measure of functional strength and dynamic postural control in a sit-to-stand activity was the only significant predictor of taking ≥3 steps independently. The positive likelihood ratio for predicting a "walker" was 3.26, and the negative likelihood ratio was 0.74. The model correctly identified a walker or "nonwalker" 75% of the time. LIMITATIONS: Prediction of walking ability was limited by the lack of specificity of child and family characteristics not prospectively selected and measurement of postural control, reciprocal lower limb movement, and functional strength 1 year prior to the walking outcome. CONCLUSIONS: The ability to transfer from sitting to standing and from standing to sitting predicted independent walking in young children with CP. Prospective longitudinal studies are recommended to determine indicators of readiness for independent walking.

The continuum of care for individuals with lifelong disabilities: role of the physical therapist.

Many individuals with lifelong disabilities (LLDs) of childhood onset are living longer, participating in adult roles, and seeking comprehensive health care services, including physical therapy, with greater frequency than in the past. Individuals with LLDs have the same goals of health and wellness as those without disabilities. Aging with a chronic LLD is not yet well understood; however, impairments such as pain, fatigue, and osteoporosis often present earlier than in adults who are aging typically. People with LLDs, especially those living with developmental disabilities such as cerebral palsy, myelomeningocele, Down syndrome, and intellectual disabilities, frequently have complex and multiple body system impairments and functional limitations that can: (1) be the cause of numerous and varied secondary conditions, (2) limit overall earning power, (3) diminish insurance coverage, and (4) create unique challenges for accessing health care. Collaboration between adult and pediatric practitioners is encouraged to facilitate smooth transitions to health practitioners, including physical therapists. A collaborative client-centered emphasis to support the transition to adult-oriented facilities and promote strategies to increase accessibility should become standard parts of examination, goal setting, and intervention. This perspective article identifies barriers individuals with selected LLDs experience in accessing health care, including physical therapy. Strategies are suggested, including establishment of niche practices, physical accessibility improvement, and inclusion of more specific curriculum content in professional (entry-level) doctorate physical therapy schools.

The determinants of self-determined behaviors of young children with cerebral palsy.

The purpose of this study was to identify determinants of self-determined behaviors of young children with cerebral palsy. The participants were 429 children (56% boys, 18-60 months) and their parents. Structural equation modeling was used to test two models of self-determined behaviors, one for children with walking mobility (Gross Motor Function Classification System, GMFCS levels I-II) and the other for children with limited self-mobility (GMFCS levels III-V). Cognitive-behavioral problems and the extent family supports their child's self-determined behaviors explained 60% of the variance in self-determined behaviors of children with walking mobility. Cognitive-behavioral problems, playfulness, and the extent family supports their child's self-determined behaviors explained 68% of the variance in self-determined behaviors of children with limited self-mobility. The less the child's cognitive-behavioral problems affect daily activities (p<.05) and the more the extent family supports their child's self-determined behaviors (p<.05), the more effective the child's self-determined behaviors. Playfulness only had an effect on self-determined behaviors of children with limited self-mobility (p<.05). Service providers are encouraged to assess and support children's daily functioning in cognition, communication, and emotional/behavioral regulation, playfulness, and family strategies in providing opportunity for children to practice self-determined behaviors.

Determinants of social participation--with friends and others who are not family members--for youths with cerebral palsy.

BACKGROUND: Social participation provides youths with opportunities to develop their self-concept, friendships, and meaning in life. Youths with cerebral palsy (CP) have been reported to participate more in home-based leisure activities and to have fewer social experiences with friends and others than youths without disabilities. OBJECTIVE: The objective of this study was to identify youth, family, and service determinants of the participation of youths with CP in leisure activities with friends and others who are not family members. DESIGN: The study design was a cross-sectional analysis. METHODS: The participants were 209 youths who were 13 to 21 years old (52% male), had CP, and were classified in Gross Motor Function Classification System (GMFCS) levels I to V as well as their parents. The participants were recruited from 7 children's hospitals in 6 different states. Youths completed the Children's Assessment of Participation and Enjoyment in structured interviews. Parents completed the Coping Inventory, Pediatric Outcomes Data Collection Instrument, Family Environment Scale, Measure of Processes of Care, and demographic and service questionnaires. Researchers determined GMFCS levels. A sequential multiple regression analysis was used to determine the youth, family, and service variables that predicted participation with friends and with others who were not family members. RESULTS: Sports and physical function, communication or speech problems, educational program, and the extent to which the desired community recreational activities were obtained explained 45.8% of the variance in the number of activities engaged in with friends. A higher level of parental education explained 6.3% of the variance in the number of activities engaged in with others who were not family members. Limitations The youths' activity preferences and intensity of participation were not examined. CONCLUSIONS: /b> Youth and service characteristics were determinants of participation with friends but not others who were not family members. The findings have implications for the role of physical therapists in promoting sports and physical and communication abilities and enhancing community opportunities to optimize the social participation of youths with CP.

Family priorities for activity and participation of children and youth with cerebral palsy.

BACKGROUND: Understanding family priorities for children and youth with cerebral palsy is essential for family-centered service. OBJECTIVE: The purposes of this study were: (1) to identify family priorities for activity and participation in children and youth with cerebral palsy and (2) to determine differences based on age and Gross Motor Functional Classification System (GMFCS) level. DESIGN: Five hundred eighty-five children and youth with cerebral palsy and their caregivers participated at regional children's hospitals. The children and youth were 2 to 21 years of age; 56% were male, and 44% were female. Their caregivers, predominantly mothers (80%), had a mean age of 40.3 years (SD=9.3). The Canadian Occupational Performance Measure was administered to caregivers to identify their priorities for their children. The priorities were coded into 3 categories (daily activities, productivity, and leisure) and 13 subcategories. The GMFCS levels were determined by assessors who met the criterion for reliability. Friedman and Kruskal-Wallis one-way analyses of variance were used to examine differences in priorities. RESULTS: Parents of children in all age groups and GMFCS levels II to V identified more priorities for daily activities. Parents of school-aged children and youth had more priorities for productivity than parents of younger children. For parents of children in all age groups and motor function levels, self-care was the most frequent priority subcategory. Sixty-one percent of parents identified at least one priority related to mobility. LIMITATIONS: The study did not include qualitative analysis of priorities of parents. CONCLUSIONS: Parents' priorities for their children and youth with cerebral palsy differed depending on age and gross motor function level; however, the most frequent priority for all age groups was daily activities. Interviews with families are recommended for identifying outcomes for activity and participation and developing an intervention plan.

Participation in home, extracurricular, and community activities among children and young people with cerebral palsy.

AIM: Participation in home, extracurricular, and community activities is a desired outcome of rehabilitation services for children and young people with cerebral palsy (CP). The purpose of this study was to investigate the effect of age and gross motor function on participation among children and young people with CP. METHOD: Five hundred participants (277 males, 223 females) were grouped by age and Gross Motor Function Classification System (GMFCS) level. There were 291 children aged 6 to 12 years and 209 young people aged 13 to 21 years. There were 128 participants in GMFCS level I, 220 in levels II/III, and 152 in levels IV/V. Participants completed the Children's Assessment of Participation and Enjoyment to measure number of activities (diversity) and how often they were performed (intensity) in the past 4 months. RESULTS: Children had higher overall participation diversity and intensity than young people (p<0.001). Children and young people in GMFCS level I had the highest overall participation, followed by children and young people in levels II/III and IV/V. Children had higher participation in recreational (p<0.001) but not formal (such as team sports or clubs) or physical activities. Children (p<0.01) and young people (p<0.001) in level I had the highest participation in physical activities; diversity and intensity were generally low. INTERPRETATION: The findings provide evidence of the effect of age and gross motor function on participation of children and young people with CP. Low participation in physical activities may have implications for fitness and health, especially for children and young people in GMFCS levels IV and V.

Test-retest reliability of isokinetic dynamometry for the assessment of spasticity of the knee flexors and knee extensors in children with cerebral palsy.

OBJECTIVE: To assess test-retest reliability of the peak resistance torque and slope of work methods of spasticity measurement of the knee flexors and extensors in children with cerebral palsy (CP). DESIGN: Test-retest reliability study. SETTING: Pediatric orthopedic hospital. PARTICIPANTS: Fifteen children with CP. INTERVENTION: Knee extensor and flexor spasticity was assessed with an isokinetic dynamometer using passive movements at 15 degrees, 90 degrees, and 180 degrees/s taken 1 hour apart. MAIN OUTCOME MEASURES: Peak resistive torque and work were calculated. The relative and absolute test-retest reliability was calculated by using intraclass correlation coefficients (ICCs) and Bland-Altman plots, respectively. RESULTS: Relative reliability was good (ICC>.75) for slope-of-work and peak resistance torque measurements at a velocity of 180 degrees/s, whereas reliability of peak torque measurements was decreased (ICC<.51) at slower velocities for both muscle groups. The 95% limits of agreement of Bland-Altman plots contained most data points for both methods, but the width of the limits of agreement were wide. CONCLUSIONS: The measurement of spasticity of the knee extensors and flexors in children with CP using peak-resistance torque at 180 degrees/s and the slope of work method has acceptable relative test-retest reliability. However, the absolute reliability of spasticity data should be considered cautiously.

Immediate effect of percutaneous intramuscular stimulation during gait in children with cerebral palsy: a feasibility study.

The feasibility of percutaneous intramuscular functional electrical stimulation (P-FES) in children with cerebral palsy (CP) for immediate improvement of ankle kinematics during gait has not previously been reported. Eight children with CP (six with diplegia, two with hemiplegia; mean age 9 years 1 month [SD 1 y 4 mo; range 7 y 11 mo to 11 y 10 mo]) had percutaneous intramuscular electrodes implanted into the gastrocnemius (GA) and tibialis anterior (TA) muscles of their involved limbs. Stimulation was provided during appropriate phases of the gait cycle in three conditions (GA only, TA only, and GA/TA). immediately after a week of practice for each stimulation condition, a gait analysis was performed with and without stimulation. A significant improvement in peak dorsiflexion in swing for the more affected extremity and dorsiflexion at initial contact for the less affected extremity were found in the GA/TA condition. Clinically meaningful trends were evident for improvements in dorsiflexion kinematics for the more and less affected extremities in the TA only and GA/TA conditions. The results suggest that P-FES might immediately improve ankle kinematics in children with CP.

Comparison of percutaneous and surface functional electrical stimulation during gait in a child with hemiplegic cerebral palsy.

The purpose of this brief report was to compare the immediate effects of surface functional electrical stimulation (S-FES) and percutaneous functional electrical stimulation (P-FES) of the tibialis anterior applied during gait in a child with hemiplegic cerebral palsy. A three-dimensional gait analysis was conducted while an 11-yr-old girl with right hemiplegia walked with S-FES, P-FES, and no stimulation. The results indicated that both P-FES and S-FES increased dorsiflexion at initial contact, peak dorsiflexion in swing, and mean dorsiflexion in swing compared with walking without stimulation. The increase in dorsiflexion was greater with P-FES as compared with S-FES. Ankle absorption work was improved with both types of stimulation, whereas ankle generation work increased only with P-FES. This report suggests that S-FES and P-FES may have different immediate effects on gait due to issues such as muscle contraction strength, sensory feedback, and control systems for stimulation.

Muscle force and range of motion as predictors of standing balance in children with cerebral palsy.

Children with cerebral palsy frequently receive therapeutic intervention to remediate standing balance deficits. Evaluation of the impairments associated with poor balance could facilitate more effective treatment programs. This study evaluated the relationship between lower extremity force production, range of motion and standing balance in thirty-five children between the ages of 6 and 14 years of age with spastic cerebral palsy. Standing balance was evaluated using the Pediatric Clinical Test of Sensory Interaction (P-CTSIB). Hand-held dynamometry was used to assess force production and goniometry was used to assess range of motion. The results indicated that force production and range of motion are highly related to standing balance. Blocked, hierarchical multiple regression analysis revealed that force production explained 41% of the variance in P-CTSIB scores in this sample, while range of motion explained an additional 13%. Therefore, the total variance explained by these variables was 54%. Results of this study suggest that impairment level testing may allow the development of more effective individualized intervention programs to remediate balance deficits. Clinical suggestions are provided.

Recent advances in physical and occupational therapy for children with cerebral palsy.

Recent research and conceptual frameworks that emphasize family centered care and participation in family, school, and community life have contributed to advances in provision of health care by physical therapists and occupational therapists to children with cerebral palsy (CP) and their families. This article provides a contemporary perspective on physical and occupational therapy for children with CP. Topics include conceptual frameworks, early identification, prognosis for gross motor function, implications of impairment in motor control and muscle performance, and physical fitness and secondary prevention. Case scenarios and examples illustrate how current knowledge and research is applied to decision making within the context of the individual child and family.

Direct effect of percutaneous electric stimulation during gait in children with hemiplegic cerebral palsy: a report of 2 cases.

The feasibility of using percutaneous intramuscular functional electric stimulation (FES) in children with cerebral palsy (CP) as a method to improve ankle kinematics and kinetics during gait was investigated. Two children with right hemiplegic CP had percutaneous intramuscular electrodes implanted into the gastrocnemius and tibialis anterior muscles of the involved limb. FES was provided during the gait cycle using force-sensing foot switches to detect gait phase transitions. The children ambulated using FES under 3 conditions (gastrocnemius on, tibialis anterior on, gastrocnemius and tibialis anterior on). For each condition, two 45-minute walking sessions were conducted per day for 1 week. Immediately after each week of practice, a gait analysis was performed at the subject's self-selected walking speed for that stimulation condition and without stimulation. Both children demonstrated improvements in ankle dorsiflexion angle at initial contact, peak dorsiflexion during swing, mean dorsiflexion during swing, and ankle work during early stance with tibialis anterior stimulation alone and combined gastrocnemius and tibialis anterior stimulation. Improvements in ankle work were found during late stance for both children with all stimulation conditions. These results suggest that percutaneous intramuscular FES was effective in improving aspects of ankle kinematics and kinetics of 2 children with hemiplegic CP.