BACKGROUND: Ambulatory children with Spina Bifida (SB) often show a decline in physical activity leading to deconditioning and functional decline. Therefore, assessment and promotion of physical activity is important. Because energy expenditure during activities is higher in these children, the use of existing pediatric equations to predict physical activity energy expenditure (PAEE) may not be valid. AIMS: (1) To evaluate criterion validity of existing predictions converting accelerocounts into PAEE in ambulatory children with SB and (2) to establish new disease-specific equations for PAEE. METHODS: Simultaneous measurements using the Actical, the Actiheart, and indirect calorimetry took place to determine PAEE in 26 ambulatory children with SB. DATA ANALYSIS: Paired T-tests, Intra-class correlations limits of agreement (LoA), and explained variance (R2) were used to analyze validity of the prediction equations using true PAEE as criterion. New equations were derived using regression techniques. RESULTS: While T-tests showed no significant differences for some models, the predictions developed in healthy children showed moderate ICC’s and large LoA with true PAEE. The best regression models to predict PAEE were: PAEE = 174.049 + 3.861 × HRAR – 60.285 × ambulatory status (R2 = 0.720) and PAEE = 220.484 + 0.67 × Actical counts – 60.717 × ambulatory status (R2 = 0.681). CONCLUSIONS: Existing equations to predict PAEE are not valid for use in children with SB for the individual evaluation of PAEE. The best regression model was based on HRAR in combination with ambulatory status, followed by a new model for the Actical monitor. A benefit of HRAR is that it does not require the use of expensive accelerometry equipment. Further cross-validation of these models is still needed.
The following paper presents a methodology we developed for addressing the case of a multi-modal network to be implemented in the future. The methodology is based on a simulation approach and presents some characteristics that make a challenge to be verified and validated. To overcome this limitation, we proposed a novel methodology that implies interaction with subjectmatter experts, revision of current data, collection and assessment of future performance and educated assumptions. With that methodology we could construct the complete passenger trajectory Door to door in Europe. The results indicate that the approach allows to approach infrastructure analysis at an early stage to have an initial estimation of the upper boundary of performance indicators. To exemplify this, we present the results for a case study in Europe.
BackgroundThe Uganda version of Pediatric Evaluation of Disability Inventory (PEDI-UG) was culturally adapted and validated from the PEDI-US, a tool used to evaluate the functional capability of children with or without disability aged 6 months to 7.5 years in the areas of self-care, mobility and social domains. A group of Ugandan occupational therapists with experience of using PEDI-UG participated in this study to explore the question: What do Ugandan occupational therapists say about the utility and value of the PEDI-UG for children with disabilities?MethodsA qualitative research design was chosen to explore the participants' viewpoints concerning the utility and value of the PEDI-UG for children with disabilities. Purposive sampling was used to recruit health professionals for the focus group discussions. Focus group discussions were carried out with 18 occupational therapists and nurses. Thematic analysis was performed to establish patterns and themes.ResultsSeveral challenges concerning the contextual use of PEDI-UG were reported. For example, PEDI-UG being culturally adapted in two languages (English and Luganda) makes it difficult for health professionals to use it for children whose caregivers are non-English or non-Luganda speakers. In addition, participants reported adapting the way they asked the assessment questions, struggling with how they interpreted the scores and observing the child's skills if required during PEDI-UG interviews with caregivers.ConclusionsThe findings of this study suggest that health professionals are challenged with the use of the PEDI-UG assessment in diverse cultural contexts and/or languages. These challenges are important considerations for the PEDI-UG translation in different Uganda cultural languages and training health professionals on the use and value of PEDI-UG for children with disabilities.