The effects of a shank guide on cycling biomechanics of an adolescent with cerebral palsy: a single-case study

Training Two-Wheel Bike Skills in Children with Cerebral Palsy: A Practice Survey of Therapists in Australia

Aim: To describe current practices of physiotherapists and occupational therapists when training two-wheel bike skills in children with cerebral palsy (CP) within an International Classification of Functioning, Disability and Health (ICF) framework. Methods: Ninety-five physiotherapists and occupational therapists working with children with CP in Australia completed a customized online survey. Survey questions related to: eligibility, initial assessment, intervention characteristics, and evaluation of effectiveness. Open-ended responses were analyzed using deductive content analysis. Close-ended questions were analyzed using descriptive statistics. The ICF was used as a framework for coding and reporting. Results: Body structure and function factors were most frequently considered in eligibility (56% of observations) and assessment (47%). Activity and participation-related factors were considered more in intervention (42%) and evaluation (75%). While functional training approaches were predominant, intervention characteristics varied markedly. Excepting goal-related tools, few measures were identified for assessment or evaluation of effectiveness. Environmental and personal factors were seldom considered across practice areas. Conclusions: Current two-wheel bike skills training for children with CP in Australia appears highly variable. Development and testing of bike skills-specific outcome measures and interventions and guidance for therapists on consideration of environmental and personal factors are warranted.

Ability of independently ambulant children with cerebral palsy to ride a two-wheel bicycle: a case-control study

AIM

Limited information exists on the ability of children with cerebral palsy (CP) to ride a two-wheel bicycle, an activity that may improve health and participation. We aimed to describe bicycle-riding ability and variables associated with ability to ride in children with CP (Gross Motor Functional Classification System [GMFCS] levels I-II) compared with children with typical development.

METHOD

This case-control study surveyed parents of 114 children with CP and 87 children with typical development aged 6 to 15 years (115 males, mean age 9y 11mo, standard deviation [SD] 2y 10mo). Kaplan-Meier methods were used to compare proportions able to ride at any given age between the two groups. Logistic regression was used to assess variables associated with ability to ride for children with CP and typical development separately.

RESULTS

The proportion of children with CP able to ride at each level of bicycle-riding ability was substantially lower at each age than peers with typical development (p<0.001). While most children with typical development were able to ride independently by 10 years of age, 51% of children with CP classified as GMFCS level I and 3% of those classified as GMFCS level II had obtained independent riding in the community by 15 years of age. Variables associated with ability to ride for children classified as GMFCS level I were age and parent-rated importance of their child being able to ride.

INTERPRETATION

Some independently ambulant children with CP can learn to ride a bicycle, in particular if they are classified as GMFCS level I. Variables associated with ability to ride deserve consideration in shaping future efforts for the majority of this population who are not yet able to ride.

Evaluation of functional electrical stimulation to assist cycling in four adolescents with spastic cerebral palsy

Introduction. Adolescents with cerebral palsy (CP) often have difficulty participating in exercise at intensities necessary to improve cardiovascular fitness. Functional electrical stimulation- (FES-) assisted cycling is proposed as a form of exercise for adolescents with CP. The aims of this paper were to adapt methods and assess the feasibility of applying FES cycling technology in adolescents with CP, determine methods of performing cycling tests in adolescents with CP, and evaluate the immediate effects of FES assistance on cycling performance. Materials/Methods. Four participants (12–14 years old; GMFCS levels III-IV) participated in a case-based pilot study of FES-assisted cycling in which bilateral quadriceps muscles were activated using surface electrodes. Cycling cadence, power output, and heart rate were collected. Results. FES-assisted cycling was well tolerated (n = 4) and cases are presented demonstrating increased cadence (2–43 rpm), power output (19–70%), and heart rates (4-5%) and decreased variability (8–13%) in cycling performance when FES was applied, compared to volitional cycling without FES assistance. Some participants (n = 2) required the use of an auxiliary hub motor for assistance. Conclusions. FES-assisted cycling is feasible for individuals with CP and may lead to immediate improvements in cycling performance. Future work will examine the potential for long-term fitness gains using this intervention.