Reduced knee flexion is a possible cause of increased loading rates in individuals with patellofemoral pain

Stair ascent is an activity that exacerbates symptoms of individuals with patellofemoral pain. The discomfort associated with this activity usually results in gait modification such as reduced knee flexion in an attempt to reduce pain. Although such compensatory strategy is a logical approach to decrease pain, it also reduces the normal active shock absorption increasing loading rates and may lead to deleterious and degenerative changes of the knee joint. Thus, the aims of this study were (i) to investigate whether there is reduced knee flexion in adults with PFP compared to healthy controls; and (ii) to analyze loading rates in these subjects, during stair climbing. Twenty-nine individuals with patellofemoral pain and twenty-five control individuals (18-30years) participated in this study. Each subject underwent three-dimensional kinematic and kinetic analyses during stair climbing on two separate days. Between-groups analyses of variance were performed to identify differences in peak knee flexion and loading rates. Intraclass correlation coefficient was performed to verify the reliability of the variables. On both days, the patellofemoral pain group demonstrated significantly reduced peak knee flexion and increased loading rates. In addition, the two variables obtained high to very high reliability. Reduced knee flexion during stair climbing as a strategy to avoid anterior knee pain does not seem to be healthy for lower limb mechanical distributions. Repeated loading at higher loading rates may be damaging to lower limb joints.

Reliable assessment of forearm photoageing by high-frequency ultrasound: a cross-sectional study

High-frequency ultrasound is a non-invasive tool used in skin ageing research to assess dermis thickness and echogenicity. This study evaluated the reliability of a range of high-frequency ultrasound parameters and tested their correlation with age and a validated clinical scale for the assessment of forearm skin photoageing; the difference between two body sites according to environmental exposition patterns was also investigated. Twenty-three volunteers aged 28-82 years were divided into three groups according to forearm photoageing degree. A 20 MHz ultrasound unit was used to obtain cross-sectional images of the skin by two trained investigators on two different sites: the dorsal forearm (chronically photoexposed skin) and the proximal medial arm (non-photoexposed skin). Several echogenicity parameters were studied for each skin compartment: total dermis, upper dermis and lower dermis, and the ratio between upper and lower dermis. The intraclass correlation coefficient (for complete agreement) between investigators was higher for upper and total dermis echogenicity measures compared with the lower dermis. At the non-photoexposed site, the upper and lower dermis parameter ratio was better correlated with age. At the photoexposed area, total dermis parameters demonstrated higher correlations with clinical score. The authors discuss the choice of parameters for forearm photoageing assessment using high-frequency ultrasound.

Tradução para o português brasileiro, adaptação transcultural e validação do 3D Assessment of Hand Function

Pós-graduação em Bases Gerais da Cirurgia - FMB

Educação Popular e Educação do Campo: análise a partir do Programa Nacional de Educação da Reforma Agrária no curso Pedagogia da Terra em São Carlos - SP

Pós-graduação em Educação - FCT

Religiosidade e mito na obra de José Carlos Mariátegui e a teologia da libertação

Pós-graduação em Ciências Sociais - FCLAR

Adaptação cultural e validação do JAMAR - Juvenile Arthritis Multidimensional Assessment Report para a artrite idiopática juvenil

Pós-graduação em Saúde Coletiva - FMB

Relação entre testes clínicos e desfechos de dor e incapacidade de pacientes com dor lombar crônica não específica submetidos ao programa de controle motor

Pós-graduação em Fisioterapia - FCT

Características epidemiológicas da frequência cardíaca de repouso: relação com a prática de atividade física estratificada por sexo e controlada por fatores de confusão

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Imagens, sensações e afetos: as personagens gays nos curtas-metragens brasileiros exibidos no Festival Mix Brasil de Cultura da Diversidade

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Escola técnicas agrícolas: um estudo sobre ensino de Matemática e formação de professores

The central focus of this paper is to establish that the Brazilian Education Programa to prepare professionals in Technical-Agricultural Schools is suffering a kind of marginalization which comes from two distinct perspectives: the intention to prepare professionals (being a branch of Technical Education) and the relationship to the countryside (a community space historically seen as peripheral in its relation to urban culture). The paper discusses – from a historical and sociological point of view and using Oral History as methodological approach – the experiences of Math’s teachers in their daily struggles against some conceptions of other teachers (mainly those of technical areas) and against all the “regular” schooling system.

Movimento social e jornalismo militante: o Jornal sem Terra

Several groups reveal their interests, their critical position on reality through structure alternative of communication ways for great media. These ways, that were present during history of brazilian journalism don´t have the repercussion and reach of great communication enterprises, but they are initiatives that collaborate to spread of perspectives about the reality and on structure of a communication more democratic. This analysis organizes itself from observation about the newspaper Sem Terra emphasizing their principal characteristics, their speech about the conception of citizenship related to agrarian reform project and its significance about journalism of great media. The militant journalism just emerges like one of the tools on struggles of citizenship, but fundamental importance to spread the reality readings and to allow reflexions about the admitted journalistic language through arrival of modernity.

"...Depois, querida, ganharemos o mundo": reflexões sobre gênero, sexualidade e políticas públicas para travestis adolescentes, meninos femininos e outras variações

This article originated in a research that was meant to map out and examine the life conditions of “travesti” (transgender) teenagers and youth living in the city of Campinas, state of São Paulo. We contacted our informants outside the environments usually identifi ed as the common spaces where members of this group spend their time and share their experiences, as a strategy that we believed could enable us to better perceive how they construct their subjectivities. As we began our ethnographic endeavors, we were surprised by the multiplicity of ways in which these young people experimented with gender and sexuality, yet which were, at the same time, accompanied by eff orts to fi t these experiments within available identity categories. Feminine boys, cross dressers and drags thus constructed their own ways of living the feminine, and in doing so, stirred our imagination regarding contemporary experiences and political struggles in the realm of sexuality.

Diagnostic accuracy of the EMG parameters associated with anterior knee pain in the diagnosis of patellofemoral pain syndrome

Objective To assess the diagnostic accuracy of the surface electromyography (sEMG) parameters associated with referred anterior knee pain in diagnosing patellofemoral pain syndrome (PFPS). Design Sensitivity and specificity analysis. Setting Physical rehabilitation center and laboratory of biomechanics and motor control. Participants Pain-free subjects (n=29) and participants with PFPS (n=22) selected by convenience. Interventions Not applicable. Main Outcome Measure The diagnostic accuracy was calculated for sEMG parameters’ reliability, precision, and ability to differentiate participants with and without PFPS. The selected sEMG parameter associated with anterior knee pain was considered as an index test and was compared with the reference standard for the diagnosis of PFPS. Intraclass correlation coefficient, SEM, independent t tests, sensitivity, specificity, negative and positive likelihood ratios, and negative and positive predictive values were used for the statistical analysis. Results The medium-frequency band (B2) parameter was reliable (intraclass correlation coefficient=.80–.90), precise (SEM=2.71–3.87 normalized unit), and able to differentiate participants with and without PFPS (P<.05). The association of B2 with anterior knee pain showed positive diagnostic accuracy values (specificity, .87; sensitivity, .70; negative likelihood ratio, .33; positive likelihood ratio, 5.63; negative predictive value, .72; and positive predictive value, .86). Conclusions The results provide evidence to support the use of EMG signals (B2 – frequency band of 45–96Hz) of the vastus lateralis and vastus medialis muscles with referred anterior knee pain in the diagnosis of PFPS.

As disputas territoriais na formação do assentamento Canudos, em Goiás

Pós-graduação em Geografia - FCT

Formação Continuada em Serviço para professores da educação infantil sobre o brincar

Pós-graduação em Educação - FFC