The Midfoot Joint Complex (Foot Arch) Contributes to the Upper Body Position in Bipedal Walking and Coordinates With the Lower Limb Joints.

This study estimated the contribution of the midfoot joint complex (MJC) kinematics to the pelvis anterior-posterior positions during the stance phase of walking and investigated whether the MJC is functionally coordinated with the lower limb joints to maintain similar pelvic positions across steps. Hip, knee, ankle, and MJC sagittal angles were measured in 11 nondisabled participants during walking. The joints' contributions to pelvic positions were computed through equations derived from a link-segment model. Functional coordination across steps was identified when the MJC contribution to pelvic position varied and the summed contributions of other joints varied in the opposite direction (strong negative covariations [r ≤ -.7] in stance phase instants). We observed that the MJC plantarflexion (arch raising) during the midstance and late stance leads the pelvis backward, avoiding excessive forward displacement. The MJC was the second joint that contributed most to the pelvis positions (around 18% of all joints' contributions), after the ankle joint. The MJC and ankle were the joints that were most frequently coordinated with the other joints (≅70% of the stance phase duration). The findings suggest that the MJC is part of the kinematic chain that determines pelvis positions during walking and is functionally coordinated with the lower limb joints.

Conceptions of disability among physiotherapists: an exploratory qualitative study.

INTRODUCTION: Physiotherapists' (PTs) assumptions about disability, for the most part unrecognized and unquestioned, may or may not be aligned with the vision of the International Classification of Functioning, Disability, and Health (ICF). They can influence a wide range of PT practices and impact the lives of patients. OBJECTIVE: To investigate whether PTs at different stages of their training rely on medical, social, or biopsychosocial conceptions of disability in line with the International Classification of Functioning, Disability and Health (ICF). METHODS: A qualitative study with three focus groups: 1) PT students at the beginning; and 2) at the end of their training; and 3) PTs active in several different clinical fields. Content analysis was used identify definitions, causes, judgments, and solutions to disability. RESULTS: Some clinicians and senior students expressed views of functioning and disability as interactive, situational, continuous, and ubiquitous features of the human condition. However, in all groups there was a strong predominance of medical definitions and causal attributions for disability, some fitting the tripartite linear causal logic from impairment to subnormal performance to social disadvantage. Most of moral judgments were negative and associated disability with a 'diminished state,' personal loss, and suffering. Surprisingly, most solutions to disability-related problems were of a social or interactionist character, including vigilance against ableism. CONCLUSIONS: Results revealed paradoxical conceptions and point to challenges of ensuring a deeper understanding of non-medical framings, to avoid an uncritical adoption of the ICF that may neutralize its potential to challenge culturally entrenched medical conceptions of disability.

Testing a new active learning approach to advance motor learning knowledge and self-efficacy in physical therapy undergraduate education.

BACKGROUND: Motor learning (ML) science is foundational for physical therapy. However, multiple sources of evidence have indicated a science-practice gap. Clinicians report low self-efficacy with ML concepts and indicate that the lack of access to systematic training is a barrier for practical implementation. The general goal of this preliminary study was to describe the effects of a new educational intervention on physical therapy student's ML self-efficacy and knowledge. METHODS: Self-efficacy was assessed with the Physical Therapists' Perceptions of Motor Learning questionnaire. Data was acquired from third-semester students before their participation in the ML educational intervention. Reference self-efficacy data was also acquired from physical therapy professionals and first and last-semester students. The educational intervention for third-semester students was designed around an established framework to apply ML principles to rehabilitation. A direct experience, the "Learning by Doing" approach, in which students had to choose a motor skill to acquire over 10 weeks, provided the opportunity to apply ML theory to practice in a personally meaningful way. After the intervention self-efficacy was re-tested. ML knowledge was tested with an objective final exam. Content analysis of coursework material was used to determine how students comprehended ML theory and related it to their practical experience. The Kruskal-Wallis and Mann-Whitney U tests were used to compare self-efficacy scores between the four groups. Changes in self-efficacy after the educational intervention were analyzed with the Wilcoxon test. Spearman rank correlation analysis was used to test the association between self-efficacy and final exam grades. RESULTS: By the end of the intervention, students' self-efficacy had significantly increased (p < 0.03), was higher than that of senior students (p < 0.00) and experienced professionals (p < 0.00) and correlated with performance on an objective knowledge test (p < 0.03). Content analysis revealed that students learned to apply the elements of ML-based interventions present in the scientific literature to a real-life, structured ML program tailored to personal objectives. CONCLUSIONS: Positive improvements were observed after the intervention. These results need confirmation with a controlled study. Because self-efficacy mediates the clinical application of knowledge and skills, systematic, active training in ML may help reduce the science-practice gap.

Attention Focus Does Not Influence Performance of Sit-to-Stand in Young and Older Adults.

An external focus of attention can improve performance, but there is little research on effects for the elderly in every day, well-learned mobility tasks. 57 older and 59 young adults performed the sit-to-stand and stand-to-sit while holding a cup, at three difficulty levels (cup empty or full, at normal or fast speed). Half were instructed to focus internally (on their movements) and half externally (on the cup). The effects of focus, age, and difficulty level were tested for movement time, mean inclination of the cup, inclination variability, and smoothness with 2 × 2 × 3 ANOVAs. Significant effects of difficulty were consistent across variables (p < 0.05). An effect of focus was present only for the inclination variability of the stand-to-sit (p < 0.03), favoring an internal focus (less variability). The age × focus interaction was significant for mean cup inclination, but post hoc tests failed to reveal any significant differences. The results of this study, together with the literature, suggest that an external focus may not benefit the performance of young or older adults in general mobility activities of daily living. The prevalent assumption that an external focus is always beneficial for performance needs further empirical testing.

Physical Therapist Education and the Labor Market in Brazil: Advances and Challenges.

BACKGROUND: In Brazil, the number of physical therapy education programs and, consequently, of professionals has been growing for the past 20 years. OBJECTIVES: The objective of the study was to describe the evolution and distribution of physical therapist education programs in Brazil and to analyze the impact of workforce growth on the labor market for these professionals. DESIGN: This was a descriptive, exploratory, quantitative study. METHODS: Secondary data collected from official sources in Brazil were used. RESULTS: The first physical therapist education program was created in 1958, and, after significant growth, 536 programs were active in 2014. The historical series (1996-2014) shows a corresponding increase in the number of admissions by higher educational institutions. This expansion resulted in an increase in the number of professionals, with an impact on the labor market. The workforce in physical therapy is predominantly female, and women increased their participation in this labor market from 59% in 1996 to 81% in 2014. An increase in nominal monthly salaries was observed over the years from US $797.00 in 1996 to US $1056.00 in 2014. Nevertheless, the real average salaries, that is, salaries adjusted to inflation, have followed a trend of devaluation. LIMITATIONS: Results of this study must be interpreted in terms of overall trends rather than as precise absolute numbers due to the inherent nature of the varied secondary data sources. CONCLUSIONS: These data can support further discussion on training and the labor market in the field of physical therapy.

Moderating effect of the environment in the relationship between mobility and school participation in children and adolescents with cerebral palsy.

BACKGROUND: The literature demonstrates that the social participation of children with disabilities is influenced by both their functional skills repertoire and environmental factors. However, it is not yet known whether the effect of functional limitations on social participation is minimized or enhanced by the environmental facilitators and barriers. This study aimed to test this hypothesis. OBJECTIVE: To investigate the moderating effect of environmental factors in the relationship between mobility and school participation of children and adolescents with cerebral palsy (CP). METHOD: Participants were 102 elementary school children and adolescents with CP, aged 6 to 17 years, classified as levels I, II, and III according to the Gross Motor Classification System, along with their parents or caregivers and teachers. School participation and parents' perceptions of barriers were evaluated using the School Function Assessment and the Craig Hospital Inventory of Environmental Factors (CHIEF), respectively. RESULTS: The regression model failed to reveal a moderating effect of environmental factors in the relationship between mobility and school participation. While mobility was a strong predictor of participation, environmental factors demonstrated a weak predictive effect on the latter. The CHIEF subscale school/work showed the factors which were greatest barrier to children's participation, while the subscale attitude/support had the least impact. CONCLUSION: The absence of moderation on the tested relationship suggests that, when investigated under the negative perspective of environmental barriers, the contextual factors do not modify the relationship between mobility and school participation. Factors specific to the school environment might add to the present study's results regarding the effect of school participation in this population.

Moderating effect of the environment in the relationship between mobility and school participation in children and adolescents with cerebral palsy

BACKGROUND: The literature demonstrates that the social participation of children with disabilities is influenced by both their functional skills repertoire and environmental factors. However, it is not yet known whether the effect of functional limitations on social participation is minimized or enhanced by the environmental facilitators and barriers. This study aimed to test this hypothesis.OBJECTIVE: To investigate the moderating effect of environmental factors in the relationship between mobility and school participation of children and adolescents with cerebral palsy (CP).METHOD: Participants were 102 elementary school children and adolescents with CP, aged 6 to 17 years, classified as levels I, II, and III according to the Gross Motor Classification System, along with their parents or caregivers and teachers. School participation and parents' perceptions of barriers were evaluated using the School Function Assessment and the Craig Hospital Inventory of Environmental Factors (CHIEF), respectively.RESULTS: The regression model failed to reveal a moderating effect of environmental factors in the relationship between mobility and school participation. While mobility was a strong predictor of participation, environmental factors demonstrated a weak predictive effect on the latter. The CHIEF subscale school/work showed the factors which were greatest barrier to children's participation, while the subscale attitude/support had the least impact.CONCLUSION: The absence of moderation on the tested relationship suggests that, when investigated under the negative perspective of environmental barriers, the contextual factors do not modify the relationship between mobility and school participation. Factors specific to the school environment might add to the present study's results regarding the effect of school participation in this population.

Brazilian version of the instrument of environmental assessment Craig Hospital Inventory of Environmental Factors (CHIEF): translation, cross-cultural adaptation and reliability.

BACKGROUND: Environmental factors are essential for the characterization of human functioning and disability; however, the shortage of standardized instruments to assess environmental factors has limited the design of scientific investigations directed at identifying barriers to and facilitators of social participation of people with disabilities. OBJECTIVES: To translate to Brazilian Portuguese, cross-culturally adapt, and verify the reliability of an environmental assessment questionnaire, entitled Craig Hospital Inventory of Environmental Factors (CHIEF). METHOD: The questionnaire was translated to Portuguese, analyzed, translated back to English, and compared with the original version. The final version (CHIEF-BR) was submitted to 47 caregivers of children and adolescents with cerebral palsy (CP). The intra-rater reliability was tested using quadratic kappa and intraclass correlation coefficients (ICC), through interviews of 23 caregivers drawn from the total sample, on two occasions 10 days apart. Results : During submission of the questionnaires, it was observed that examples were needed in order to facilitate the understanding of the questions related to the politics sub-scale. Quadratic kappa showed that test-retest reliability of each question varied from 0.28 to 1.0 for the frequency score and from 0.30 to 0.98 for the magnitude score. Intraclass correlation coefficients for total scores showed high consistency indices (ICC ≥ 0.92) for test-retest. CONCLUSION: The Brazilian version of the CHIEF was reproducible and applicable to the study sample. It may serve as an instrument to characterize the environmental barriers as well as a way to document the effects of interventions aimed at minimizing the impact of such barriers on the participation of children and adolescents with CP.

Brazilian version of the instrument of environmental assessment Craig Hospital Inventory of Environmental Factors (CHIEF): translation, cross-cultural adaptation and reliability / Versão brasileira do instrumento de avaliação ambiental Craig Hospital Inventory of Environmental Factors (CHIEF): tradução, adaptação cultural e confiabilidade

Background: Environmental factors are essential for the characterization of human functioning and disability; however, the shortage of standardized instruments to assess environmental factors has limited the design of scientific investigations directed at identifying barriers to and facilitators of social participation of people with disabilities. Objectives : To translate to Brazilian Portuguese, cross-culturally adapt, and verify the reliability of an environmental assessment questionnaire, entitled Craig Hospital Inventory of Environmental Factors (CHIEF). Method : The questionnaire was translated to Portuguese, analyzed, translated back to English, and compared with the original version. The final version (CHIEF-BR) was submitted to 47 caregivers of children and adolescents with cerebral palsy (CP). The intra-rater reliability was tested using quadratic kappa and intraclass correlation coefficients (ICC), through interviews of 23 caregivers drawn from the total sample, on two occasions 10 days apart. Results : During submission of the questionnaires, it was observed that examples were needed in order to facilitate the understanding of the questions related to the politics sub-scale. Quadratic kappa showed that test-retest reliability of each question varied from 0.28 to 1.0 for the frequency score and from 0.30 to 0.98 for the magnitude score. Intraclass correlation coefficients for total scores showed high consistency indices (ICC≥0.92) for test-retest. Conclusion : The Brazilian version of the CHIEF was reproducible and applicable to the study sample. It may serve as an instrument to characterize the environmental barriers as well as a way to document the effects of interventions aimed at minimizing the impact of such barriers on the participation of children and adolescents with CP. .

Contextualização: Fatores ambientais são essenciais para a caracterização dos processos de funcionalidade e incapacidade, no entanto a escassez de instrumentação padronizada sobre tais elementos restringe a investigação científica de barreiras e facilitadores associados à participação social de pessoas com deficiência. Objetivos : Traduzir para o Português do Brasil, adaptar culturalmente e verificar a confiabilidade do questionário de avaliação ambiental denominado Craig Hospital Inventory of Environmental Factors (CHIEF). Método : O questionário foi traduzido para o Português, analisado, retrotraduzido para o Inglês e comparado com a versão original. A versão final (CHIEF-BR) foi administrada em 47 cuidadores de crianças e adolescentes com paralisa cerebral (PC), e a confiabilidade teste-reteste foi analisada pelo Kappa quadrático e índice de consistência (CCI) a partir de entrevista com 23 cuidadores dessa amostra, em dois momentos, com intervalo de dez dias. Resultados : Durante a administração, foi necessário o fornecimento de exemplos para facilitar a compreensão das questões relacionadas à subescala política. Kappa quadrático evidenciou que a confiabilidade teste-reteste de cada questão variou de 0,28 a 1,0 no escore de frequência e de 0,38 a 0,98 no escore de magnitude. Os coeficientes de correlação intraclasse dos escores totais apresentaram um alto índice de consistência (CCI≥0,92). Conclusão: O CHIEF-BR mostrou-se reprodutível e aplicável à amostra do estudo, podendo ser utilizado para documentar os efeitos de intervenções que visem a minimizar o impacto das barreiras ambientais na participação de crianças e jovens com PC. .

Effects of constraint-induced movement therapy in children with hemiplegia: a single case experimental study / Efeitos da terapia de restrição por movimento induzido em crianças com hemiplegia: desenho experimental de caso único

OBJECTIVE: To investigate the profile of changes in the use of the upper extremity in three children with hemiplegia submitted to an adapted protocol of constraint-induced movement therapy (CIMT). METHODS: A single-subject design (ABA) was replicated in three children aged 8 to 11 years old. Baseline phases (A1) and (A2) and the intervention phase (B) lasted 2 weeks each. During the intervention period, children wore a splint on the non-affected extremity for 10 hours a day and were submitted to 3 hours of therapy a day during 10 days. Training consisted of activities with the affected upper extremity, with gradually increasing complexity and verbal feedback. Hand function was classified according to the Manual Ability Classification System (MACS). Children were assessed four times every week with the Toddler Arm Use Test (TAUT) and three adapted tasks from the Jebsen-Taylor Hand Function test (JTHF), and once a week with the Pediatric Motor Activity Log (PMAL) and self-care scales of the Pediatric Evaluation of Disability Inventory (PEDI). Celeration Line, Two-Standard Deviation Band and visual analysis methods were used for data analyses. RESULTS: Significant improvements in the amount and quality of upper extremity use (PMAL), TAUT quality of use for children 2 and 3, and participation for child 1, as well as decreased time to complete JTHF tasks for children 2 and 3 were observed. No changes were observed in the PEDI self-care scales. CONCLUSION: CIMT effects were associated with improvements in manual dexterity, amount and quality of use of the affected upper extremity in children with hemiplegia.

OBJETIVO: Investigar mudanças longitudinais no uso da extremidade superior em três crianças com hemiplegia submetidas a um protocolo adaptado de terapia de movimento induzido por restrição (CIMT). MÉTODOS: Um desenho experimental de caso único (ABA) foi replicado em três crianças entre 8 e 11 anos de idade. Fases de baseline (A1) e (A2) e fase de intervenção (B) duraram duas semanas cada. Durante a fase de intervenção, as crianças usaram um splint na extremidade não afetada por dez horas por dia e foram submetidas a três horas de terapia diária por dez dias. O treinamento consistiu em atividades para a extremidade superior acometida, com aumento gradual da complexidade da tarefa e reforço verbal. A função manual foi classificada de acordo com o Manual Ability Classification System (MACS). As crianças foram avaliadas quatro vezes por semana com o Toddler Arm Use Test (TAUT) e três provas adaptadas do Teste Jebsen-Taylor de Função Manual (JTHF) e uma vez por semana com o Pediatric Motor Activity Log (PMAL) e escalas de autocuidado do Inventário de Avaliação Pediátrica de Incapacidade (PEDI). Os métodos Celeration Line, Banda de Dois Desvios-Padrão e análise visual foram usados para análise de dados. RESULTADOS: Resultados significativos demonstraram melhora na qualidade e frequência de uso da extremidade superior (PMAL), qualidade de uso do TAUT nas crianças 2 e 3, participação na criança 1, bem como diminuição do tempo gasto para completar as tarefas do JTHF para as crianças 2 e 3. Nenhuma mudança foi observada nas escalas de autocuidado do teste PEDI. CONCLUSÃO: Efeitos da CIMT associaram-se à melhora na destreza manual, frequência e qualidade de uso da extremidade acometida em crianças com hemiplegia.

Uso de órtese para abdução do polegar no desempenho funcional de criança portadora de paralisia cerebral: estudo de caso único / Use of abduction thumb orthosis in functional performance of a child with cerebral palsy: a single-subject study

OBJETIVOS: documentar o impacto do uso da órtese de abdução do polegar no desempenho funcional de uma criança hemiparética com leve espasticidade. MÉTODOS: foi utilizado um desenho experimental de caso-único do tipo AB. A fase A consistiu na coleta de dados durante um período sem intervenção (condição controle). A fase B incluiu o uso de órtese de abdução do polegar como procedimento terapêutico associado ao atendimento de terapia ocupacional tradicional. A fase A teve a duração de seis semanas e a fase subseqüente de oito semanas. A criança foi avaliada semanalmente quanto à amplitude ativa de movimento de extensão e flexão de punho, abdução e oponência do polegar e quanto à função manual. A análise dos dados foi realizada através dos métodos estatísticos Celeration Line e Banda de Dois Desvios-Padrão, assim como da Análise Visual. RESULTADOS: a criança apresentou melhora significativa na amplitude de movimento do punho e polegar (ADM ativa). Com relação à função manual observou-se redução do tempo para realização das tarefas, porém não significativa, exceto para a tarefa de empilhar blocos. CONCLUSÕES: os resultados sugerem que o uso da órtese de abdução do polegar pode ser útil no tratamento de crianças com paralisia cerebral espástica para a melhoria da ADM ativa da mão, podendo ser utilizada como adjuvante a outras terapêuticas.

OBJECTIVE: to investigate the impact of a thumb abduction orthosis on functional skills of a child with hemiparetic cerebral palsy and mild spasticity. METHODS: an AB single-subject design was used in this study. Baseline A consisted of data collected during a period without intervention (control conditions). The intervention phase B included the use of a thumb abduction orthosis in association with traditional occupational therapy. The baseline lasted six weeks and the intervention period eight weeks. Assessments were performed once a week throughout the study and included hand function tests and range of motion measures for active wrist extension and flexion and thumb abduction and opponency. The Celeration Line and Two-Standard Deviation Band methods, as well as Visual Analysis, were used for data analysis. RESULTS: the child demonstrated significant improvements in the range of active motions. A trend towards a reduction in the time to perform manual tasks was observed, but this was only statistically significant in the case of the task of stacking blocks. CONCLUSION: the results suggest that thumb abduction orthosis may be a useful adjunct treatment to improve the range of active hand motions in children with hemiparetic cerebral palsy.