Influence of walking and running on patellofemoral pain / Influência da caminhada e da corrida na dor femoropatelar

Abstract Due to the ease of its practice, walking / running can be performed in such a way that there is no adequate control or monitoring, resulting in the appearance of injuries, highlighting patellofemoral pain. Thus, the present study aimed to verify the levels of patellofemoral pain in walk / run practitioners. The sample consisted of 318 individuals, selected in a non-probabilistic manner, for convenience and adherence, including over 18 years old, both sexes, living in the state of Pernambuco, Brazil, who practiced walking / running. Data collection was performed using an online questionnaire on the google platform. Participants who agreed to participate answered a sociodemographic questionnaire, the International Physical Activity Questionnaire (IPAQ) and a subscale of patellofemoral pain and osteoarthritis of the KOOS questionnaire. Data were presented using descriptive statistics (mean and standard deviation), submitted to inferential statistics using Student's t test, ANOVA with Bonferroni's post hoc to show the effect of comparisons, considering a significance level of 5% (p <0.05). There were no significant differences between the variables analyzed (p = 0.599; ES = 0.06), suggesting that there is no difference in patellofemoral pain in practitioners of walking / running between the sexes and different levels of physical activity; research with larger samples and monitoring of more variables, in the search for more assertive results, should be carried out.

Resumo Pela facilidade de sua prática, a caminhada / corrida pode ser realizada de forma que não haja controle ou monitoramento adequado, resultando no aparecimento de lesões, destacando a dor femoropatelar. Assim, o presente estudo teve como objetivo verificar os níveis de dor femoropatelar em praticantes de caminhada / corrida. A amostra foi composta por 318 indivíduos, selecionados de forma não probabilística, por conveniência e adesão, incluindo maiores de 18 anos, ambos os sexos, residentes no estado de Pernambuco, Brasil, que praticavam caminhada / corrida. A coleta de dados foi realizada por meio de questionário online na plataforma google. Os participantes que aceitaram participar responderam a um questionário sociodemográfico, o Questionário Internacional de Atividade Física (IPAQ) e subescala de dor patelofemoral e osteoartrite do questionário KOOS. Os dados foram apresentados através da estatística descritiva (média e desvio padrão), submetidos à estatística inferencial por meio do teste t de Student, ANOVA com post hoc de Bonferroni para mostrar o efeito das comparações, considerando nível de significância de 5% (p<0,05). Não foi observada diferenças significantes entre as variáveis analisadas (p = 0,599), sugerindo que não há diferença no dor femoropatelar em praticantes de caminhada / corrida entre os sexos e diferentes níveis de atividade física; pesquisas com amostras maiores e monitoramento de mais variáveis, na busca por resultados mais assertivos, devem ser realizadas.

Prevalence of chondromalacia patella according to patella type and patellofemoral geometry: a retrospective study

Abstract BACKGROUND: The relationships between the morphometric structure of the patellofemoral joint, patella type and chondromalacia patella are still a matter of debate. OBJECTIVE: To identify the prevalence of chondromalacia patella by determining the patella type and making patellofemoral morphometric measurements. DESIGN AND SETTING: Retrospective cohort study in an orthopedics and traumatology clinic in Turkey, conducted between June 2017 and November 2019. METHODS: This study involved 562 knees of 522 patients with anterior knee pain (246 males and 316 females; mean age 46.59 years). The patients were grouped according to presence of chondromalacia patella (group I) or absence of chondromalacia patella (group II). The patella type, lateral trochlear inclination, medial trochlear inclination, trochlear angle, sulcus angle, patellar tilt and Insall-Salvati index were assessed. Group comparisons were made using chi-square tests or Student t tests. The r value was used to determine the magnitude of relationships between pairs of variables. RESULTS: Among the 562 knees evaluated, 265 (50.71%) presented type I patella, 195 (36.7%) type II, 100 (12.3%) type III and 2 (0.3%) type IV. Group I consisted of 448 knees and group II consisted of 114 knees. Significant differences were found between the groups in terms of age, gender, patella type and lateral inclination angles (P < 0.05). CONCLUSION: Detecting the patella type and making lateral inclination measurements in patients with anterior knee pain are of great importance for diagnosing suspected chondromalacia patella, particularly in the early degenerative period.

Vascular Occlusion of the Quadriceps Muscle in Postural Control of Women with Patellofemoral Dysfunction / Oclusão Vascular do Músculo Quadríceps no Controle Postural de Mulheres com Disfunção Patelofemoral

Abstract The partial vascular occlusion (PVO) associated with exercises, proposed by the KAATSU Training method, has the objective of strengthening and muscle hypertrophy with low joint overload. Currently, PVO has been associated with exercises to strengthen then quadriceps, however it is not known about its influence on postural control or the possibility of imbalances during the performance of exercises. Objectives: To evaluate the effect of quadriceps vascular occlusion on postural control in women with patellofemoral pain syndrome (PFPS). Methods: The sample in this study was composed of four sedentary women, aged between 18 and 40 years, with a clinical diagnosis of patellofemoral dysfunction. Participants responded to the Visual Analog Pain Scale (VAS) and the Anterior Knee Pain Scale (AKPS). They were submitted to an evaluation of postural control over the force platform, by means of dynamic one-legged squat activity, with and without PVO. The variables of postural control analyzed were Area of pressure center (A-COP), Anteroposterior (AP) and medium-lateral (ML), Velocity AP and ML. Results: No significant differences were found for the variables of postural control analyzed when comparing the moments with and without peripheral vascular occlusion during single-legged squat activities. Conclusion: The single leg squat with vascular occlusion does not change the postural control of patients with PFPS with and without PVO, and that the method can be used for training these patients, without impairments related to postural control. (AU)

Resumo A oclusão vascular parcial (OVP) associada a exercícios, proposta pelo método KAATSU Training, tem como objetivo o fortalecimento e hipertrofia muscular com baixa sobrecarga articular. Atualmente, a OVP tem sido associada a exercícios de fortalecimento do quadríceps, porém não se sabe sobre sua influência no controle postural ou na possibilidade de desequilíbrios durante a execução dos exercícios. Objetivos: Avaliar o efeito da oclusão vascular do quadríceps no controle postural de mulheres com síndrome da dor patelofemoral (SDFP). Métodos: A amostra deste estudo foi composta por quatro mulheres sedentárias, com idade entre 18 e 40 anos, com diagnóstico clínico de disfunção femoropatelar. Os participantes responderam à Escala Visual Analógica de Dor (VAS) e à Escala de Dor Anterior no Joelho (AKPS). Elas foram submetidas à avaliação do controle postural sobre a plataforma de força, por meio da atividade de agachamento unipodal dinâmico, com e sem OVP. As variáveis de controle postural analisadas foram área do centro de pressão (A-COP), ântero-posterior (AP) e médio-lateral (ML), velocidade AP e ML. Resultados: Não foram encontradas diferenças significativas para as variáveis de controle postural analisadas na comparação dos momentos com e sem OVP durante o agachamento unipodal. Conclusão: O agachamento unipodal com OVP não alterou o controle postural de mulheres com SDFP, e o método pode ser utilizado para treinar esses pacientes, sem prejuízos relacionados ao controle postural. (AU)

Research Progress on Characteristics of Lower Limb Movement Patterns and Rehabilitation Treatment of Patellofemoral Pain Syndrome / 医用生物力学

Patellofemoral pain syndrome (PFPS) has been attracting more and more attention in the field of rehabilitation treatment due to its high incidence rate and low cure rate. Researches show that the abnormal anatomy, muscle activity changes due to pain and insufficient muscle strength in patients with PFPS can cause wrong movement patterns of lower limb joints, which will lead to aggravation of the disease and is not conducive to the rehabilitation of patients. Movement patterns of the hip, knee, ankle joints can be improved by exercise therapy, taping, neuromuscular training and joint orthosis, thus to reduce the pain. In this paper, the movement pattern characteristics of patients with PFPS and the corresponding rehabilitation treatment method were summarized, so as to provide references for the rehabilitation of PFPS.

Fortalecimiento muscular de cadera y rodilla en el síndrome doloroso patelofemoral: Revisión sistemática y metaanálisis / Hip and knee muscle strengthening in patellofemoral pain syndrome: Systematic review and meta-analysis / Fortalecimento muscular do quadril e joelho na síndrome da dor patelofemoral: revisão sistemática e meta-análise

El síndrome doloroso patelofemoral (SDPF) es una condición musculoesquelética frecuente que se manifiesta con dolor retro y peripatelar. El fortalecimiento muscular de cadera y rodilla (FCR) ha sido propuesto como un tratamiento apropiado para el SDPF. Es precisa una revisión que compare los resultados del FCR con otras intervenciones utilizando evidencia científica actual. OBJETIVO: evaluar la efectividad del FCR en pacientes con SDPF. MATERIALES Y MÉTODOS: la revisión sistemática (RS) y metaanálisis (MA) siguieron las directrices PRISMA. El cribaje y selección de estudios se realizó mediante el programa Rayyan. Nueve artículos fueron incluidos y evaluados con la escala PEDro y la herramienta Riesgo de Sesgo de Cochrane. El MA se realizó en la aplicación Jamovi. Las variables utilizadas fueron dolor, funcionalidad y fuerza muscular. RESULTADOS: el MA demostró que el FCR fue superior en la disminución del dolor (2.30;1.18, 3.42; 95%IC) (1.76; 0.70, 2.81; 95%IC) y el incremento de la funcionalidad (14.30 ;7.49, 21.11; 95%IC) (8.66 ;3.08, 14.23; 95%IC) comparado con los grupos sin intervención (NI) y los del fortalecimiento de rodilla (FR), respectivamente; mientras que la adición de intervenciones al fortalecimiento de cadera y rodilla (FCR+) demostró mayores beneficios en la funcionalidad (-5.71; -8.32, -3.10; 95%IC) al compararse con el FCR. Así mismo, el análisis cualitativo de la variable fuerza muscular estableció que el FCR obtuvo mejores resultados que los grupos de FR y FCR+ ejercicios de control motor. CONCLUSIONES: el FCR es una intervención efectiva en la reducción del dolor, el incremento de la funcionalidad y fuerza muscular en pacientes con SDPF.

Patellofemoral pain syndrome (PFPS) is a common musculoskeletal condition that manifests with retro- and peripatellar pain. Hip and knee muscle strengthening (HKS) has been proposed as an appropriate treatment for PFPS. A review comparing the results of HKS with other interventions using current scientific evidence is needed. OBJECTIVE: to evaluate the effectiveness of HKS in patients with PFPS. MATERIALS AND METHODS: the systematic review (SR) and meta-analysis (MA) followed PRISMA guidelines. Screening and selection of studies was performed using the Rayyan program. Nine articles were included and evaluated with the PEDro scale and the Cochrane Risk of Bias tool. The MA was performed in the Jamovi application. The variables used were pain, functionality and muscle strength. RESULTS: the MA showed that the HKS was superior in decreasing pain (2.30; 1.18, 3.42; 95%CI) (1.76; 0.70, 2.81; 95%CI) and increasing functionality (14.30; 7.49, 21.11; 95%CI) (8.66; 3.08, 14.23; 95%CI) compared to the no intervention (NI) and knee strengthening (KS) groups, respectively; while the addition of interventions to hip and knee strengthening (HKS+) demonstrated greater benefits in functionality (-5.71; -8.32, -3.10; 95%CI) when compared to HKS. Likewise, qualitative analysis of the muscle strength variable established that the HKS obtained better results than the KS and HKS+ motor control exercises groups. CONCLUSIONS: HKS is an effective intervention in reducing pain, increasing functionality and muscle strength in patients with PFPS.

A síndrome da dor patelofemoral (SDPF) é uma condição musculoesquelética comum que se manifesta com dor retro e peripatelar. O fortalecimento dos músculos do quadril e joelho (FQJ) foi proposto como um tratamento adequado para o SDPF. É necessária uma revisão comparando os resultados da FQJ com outras intervenções utilizando as evidências científicas atuais. OBJETIVO: avaliar a eficácia da FQJ em pacientes com SDPF. MATERIAIS E MÉTODOS: a revisão sistemática (RS) e a meta-análise (MA) seguiram as diretrizes do PRISMA. A triagem e seleção dos estudos foi realizada utilizando o software Rayyan. Nove artigos foram incluídos e avaliados utilizando a escala PEDro e a ferramenta Cochrane Risk of Bias. O MA foi realizado na aplicação Jamovi. As variáveis utilizadas foram dor, funcionalidade e força muscular. RESULTADOS: o MA mostrou que o FQJ foi superior em diminuição da dor (2,30; 1,18, 3,42; 95%CI) (1,76; 0,70, 2,81; 95%CI) e aumento da função (14,30; 7,49, 21,11; 95%CI) (8,66; 3,08, 14.23; 95%CI) em comparação com os grupos sem intervenção (NI) e de fortalecimento do joelho (FJ), respectivamente; enquanto a adição de intervenções de fortalecimento do quadril e joelho (FQJ+) demonstrou maiores benefícios em função (-5,71; -8,32, -3,10; 95%CI) quando comparado com o FQJ. Da mesma forma, a análise qualitativa da variável força muscular estabeleceu que o FQJ teve melhor desempenho do que os grupos FJ e FQJ+ exercícios de controlo do motor. CONCLUSÕES: o FQJ é uma intervenção eficaz na redução da dor, aumentando a funcionalidade e a força muscular em pacientes com SDPF.

SEBT in individuals with patellofemoral pain: an integrative review / SEBT em indivíduos com dor patelofemoral: uma revisão integrativa

Abstract Introduction: Decreased postural stability can be observed in individuals with patellofemoral pain (PP). The Star Excursion Balance Test (SEBT) is widely used to assess deficits that need to be improved, with different application methods and result presentation formats. Objective: To map SEBT use in individuals with PP, characterizing the studies that applied it to identify different application methods and result presentation formats. Methods: The review included randomized and non-randomized clinical trials, cross-sectional, case-control and cohort studies. Searches were performed in Pubmed and SciElo databases. Data extracted from eligible studies were divided into categories: (I) study characterization (II) SEBT application methods and result presentation formats. Results: A total of 177 studies were identified in the databases, 13 of which were selected. There are a growing number of new studies that assess the dynamic postural control of individuals with PP using the SEBT, and a variety of test application and result presentation formats. Conclusion: The SEBT is a useful, easy-to-apply test that identifies changes in dynamic postural control in individuals with PP. Different application and result presentation formats are in accordance with the literature, but it is recommended that future studies apply the protocols most widely used in previous studies that exhibit a low risk of bias, in order to improve repeatability and comparisons between studies.

Resumo Introdução: A diminuição da estabilidade postural pode ser observada em indivíduos com dor patelofemoral (DP). O Star Excursion Balance Test (SEBT) é um teste amplamente utilizado para a avaliação de déficits que precisam ser melhorados e também pode apresentar diferentes maneiras de aplicabilidade e apresentação dos resultados obtidos. Objetivo: Mapear a utilização do SEBT em indivíduos com DP, caracterizando os estudos que utilizaram o teste, de maneira a identificar diferentes formas de aplicabilidade e apresentação dos resultados. Métodos: A presente revisão incluiu ensaios clínicos randomizados e não randomizados, estudos transversais, caso-controle e estudos de coorte. As buscas foram realizadas nas bases de dados Pubmed e SciELO. Dados extraídos dos estudos elegíveis foram designados em categorias: (I) caracterização dos estudos, (II) formas de aplicação do SEBT e apresentação de resultados. Resultados: Foram identificados um total de 177 registros nas bases de dados analisadas e 13 destes foram selecionados. Existe um número crescente de novos estudos que buscam avaliar o controle postural dinâmico de indivíduos com DP utilizando o SEBT, sendo que existe uma variabilidade na aplicabilidade do teste e também na apresentação dos resultados. Conclusão: O SEBT é um teste útil, de fácil aplicabilidade e que identifica alterações do controle postural dinâmico em indivíduos com DP. Diferentes formas de aplicação e apresentação dos resultados do teste estão de acordo com a literatura, porém recomenda-se que estudos futuros utilizem os protocolos mais utilizados em estudos prévios que apresentem baixo risco de viés, para que seja possível melhorar a repetibilidade e as comparações entre estudos.

Current Concepts in the Management of Patellofemoral Pain Syndrome / Conceptos Actuales en el Manejo del Síndrome de Dolor Patelofemoral

Introduction Patellofemoral pain syndrome (PFPS) is one of the leading causes of knee pain, manifesting itself during daily life activities. This study presents a review on PFPS treatment modalities. Materials and methods State of the art review on the treatment of PFPS with grades of recommendation. Active and passive conservative interventions are reviewed, as well as surgical alternatives. Results Hip and lower-limb muscle strengthening and stretching are active interventions that provide long-lasting benefits. Passive interventions include patellofemoral joint bracing, kinesiotaping and foot orthoses, and are considered useful coadjuvants to active interventions, with quick relief for patients but usually in the short term. Surgical treatment is only recommended in a small subset of patients with specific anatomic abnormalities in the patellofemoral joint. Discussion Conservative treatment remains as the mainstream in the management of patellofemoral pain syndrome.

Introducción El síndrome de dolor patelofemoral (SDPF) es una de las principales causas de dolor de rodilla y se presenta con actividades diarias de la vida cotidiana. Este estudio presenta una revisión de la literatura acerca de las modalidades de tratamiento actual para el SDPF. Materiales y métodos Revisión estado del arte acerca del tratamiento del SDPF con grados de recomendación según la evidencia. Se revisan las intervenciones conservadoras activas y pasivas, así mismo las alternativas quirúrgicas. Resultados El fortalecimiento de los músculos de la cadera y del miembro inferior, así como el estiramiento, son intervenciones activas que ofrecen beneficios en el largo plazo para el SDPF. Las intervenciones pasivas como las rodilleras, el kinesiotaping y las ortesis para los pies, ofrecen alivio rápido pero de corta duración. El tratamiento quirúrgico solamente se recomienda en un subgrupo de pacientes que no han respondido a otros tratamientos y que tienen ciertas anormalidades anatómicas específicas que alteran la articulación patelofemoral. Discusión El tratamiento conservador continúa siendo la piedra angular en el tratamiento del síndrome de dolor patelofemoral

Effect of trunk control training during unstable sitting on patellofemoral pain syndrome / 中国康复理论与实践

ObjectiveTo explore the effect of trunk control training during unstable sitting on knee pain and function in patients with patellofemoral pain syndrome. MethodsFrom January, 2019 to December, 2021, 41 patients with patellofemoral pain syndrome in Beijing Rehabilitation Hospital were randomly divided into control group (n = 20) and experiment group (n = 21). Both groups accepted routine rehabilitation, and the experiment group accepted trunk control training during unstable sitting in addition, for four weeks. They were assessed with Visual Analogue Scale for pain (VAS) and Anterior Knee Pain Scale (AKPS), and measured stability indexes with Balancer before and after treatment. ResultsAll the VAS score, AKPS score, and the overall, anterior-posterior and left-right stability indexes improved in both groups after treatment (|t| > 12.089, P < 0.001); and improved more in the experiment group than in the control group (|t| > 5.864, P < 0.001). ConclusionTrunk control training during unstable sitting may improve knee pain and function, and motor control.

One-year results of bracing for patello-femoral osteoarthritis. prospective randomized study / Um ano de uso de órtese para osteoartrite fêmoro-patelar. estudo prospectivo randomizado

ABSTRACT Objective: To compare the long-term effects of a brace designed to stabilize the patellofemoral (PF) joint in comparison to a standard neoprene sleeve for the knee with patellar hole in patients with patellofemoral osteoarthritis (PFOA). Methods: 38 patients with PFOA and comorbidities received either a functional PF brace (Study Group, SG) or a neoprene sleeve for the knee (Control Group, CG). Both groups received clinical treatment to OA and comorbidities according to a program from the institution. Patients were evaluated with Western Ontario and MacMaster (WOMAC) and Lequesne questionnaires, 30-second chair stand test (30CST), Timed Up and Go (TUG), anthropometric measures and self-reported physical activity in minutes/week at inclusion, one, three and twelve months after placing the brace. X-Rays were taken to measure the angles. Results: At one year there was more abandonment in the CG without differences in weight and body mass index between groups during the study. The SG maintained improvements in Lequesne and WOMAC total and subsets during the year, whereas the CG returned to baseline values for pain, function and total (p < 0.01). TUG and 30CST results were always better in the study group without any clinically important improvement in both groups. Conclusion: Long-term use of functional brace added to self-management program improves pain and function in patients with PFOA. Level of Evidence II, Lesser quality RCT (eg, < 80% followup, no blinding, or improper randomization).

RESUMO Objetivo: Comparar o efeito a longo prazo de uma órtese destinada a estabilizar a articulação fêmoro-patelar em comparação com uma de neoprene com orifício para patela em pacientes com osteoartrite fêmoro-patelar (OAFP). Métodos: Trinta e oito pacientes com OAFP e comorbidades receberam ou uma órtese funcional fêmoro-patelar (grupo estudo, GE) ou uma joelheira de neoprene com orifício para patela (grupo controle, GC). Os grupos receberam tratamento clínico da osteoartrite e comorbidades conforme programa da instituição. Foram avaliados com os questionários de WOMAC e Lequesne, testes de senta e levanta em 30 segundos (TSL30) e Timed-Up-and-Go (TUG), medidas antropométricas e minutos de atividade física semanal à inclusão, com um, três e doze meses depois da colocação da órtese. Radiografias foram realizadas para mensurar ângulos fêmoro-tibiais. Resultados: Houve mais abandono no GC, sem diferenças de peso, índice de massa corpórea e atividade física entre os grupos durante o estudo. GE manteve melhoras de Lequesne e WOMAC total e subdomínios durante todo o estudo, enquanto o GC piorou progressivamente após o primeiro mês (p < 0,01). TUG e TSL30 tiveram melhoras não clinicamente relevantes para ambos os grupos. Conclusão: O uso a longo prazo da órtese funcional adicionado ao tratamento clínico melhora a dor e a função dos pacientes com OAFP. Nível de Evidência II, Evidence II,ECRC de menor qualidade (por exemplo, < 80% de acompanhamento, sem mascaramento do código de randomização ou randomização inadequada).

Therapeutic effect of two muscle strengthening programs in patients with patellofemoral pain syndrome. A randomized controlled clinical trial / Efecto terapéutico de dos programas de fortalecimiento muscular en pacientes con síndrome de dolor pátelofemoral. Ensayo clínico controlado aleatorizado

Abstract Introduction: Patellofemoral pain syndrome (PFPS) is one of the most common musculoskeletal disorders affecting the knee joint. Conservative treatment reduces pain and improves functional capacity in the short and medium-term. Objective: To determine the therapeutic effect of two muscle strengthening exercise programs in patients with PFPS from Bogotá, Colombia, aged between 15 and 40 years. Materials and methods: Experimental randomized controlled clinical trial conducted in 40 patients with PFPS from Bogotá, Colombia, aged 15-40 years, with a mild to moderate level of physical activity. Participants were randomly distributed into 2 intervention groups: Group A: 8-week-long core, hip and knee muscles strengthening exercises program; Group B: 8-week-long hip and knee muscles strengthening exercises program. The level of pain was measured using the Visual Analog Scale and the Kujala Anterior Knee Pain Scale. Results: The addition of core muscle strengthening exercises to the traditional treatment improved the quality of life of participants in the intervention group A, where a significant reduction of pain, with a statistically significant difference in the total score of the Kujala scale (p=0.025) was observed. Conclusions: Including core muscle strengthening exercises in the conservative management of PFPS increases its effectiveness to reduce pain and improve the quality of life of these patients. ClinicalTrials.gov Identifier: NCT04011436

Resumen Introducción. El síndrome de dolor pátelofemoral (SPF) es una de las alteraciones musculoesqueléticas más frecuentes que afectan la articulación de la rodilla. El tratamiento conservador reduce el dolor y mejora la capacidad funcional en el corto y mediano plazo. Objetivo. Establecer el efecto terapéutico de dos programas de ejercicios de fortalecimiento muscular en pacientes con SPF de Bogotá, Colombia, con edades entre 15 y 40 años. Materiales y métodos. Ensayo clínico controlado aleatorio experimental realizado en 40 pacientes con SPF de Bogotá, Colombia, con edades entre los 15 y 40 años, con nivel de actividad física leve a moderada y que fueron distribuidos de forma aleatoria en 2 grupos de intervención: Grupo A: programa de ejercicios de fortalecimiento de los músculos del core, la cadera y la rodilla con una duración de 8 semanas; Grupo B: programa de ejercicios de fortalecimiento de los músculos de la cadera y la rodilla con la misma duración. El nivel de dolor se midió a través de la Escala Visual Analógica y de la Escala de Kujala para dolor patelofemoral. Resultados. La adición de ejercicios de fortalecimiento de los músculos del core al tratamiento tradicional mejoró la calidad de vida de los participantes en el grupo de intervención A, donde se observó una reducción significativa del dolor con una diferencia estadísticamente significativa en la puntuación total de la escala Kujala (p=0.025). Conclusiones. Incluir ejercicios de fortalecimiento de los músculos del core al manejo conservador del SPF aumenta su efectividad para reducir el dolor y mejorar la calidad de vida de estos pacientes. ClinicalTrials.gov Identifier: NCT04011436

Relationship between Knee Symptoms and Biological Features in Recreational Runners / Relação entre sintomatologia no joelho e as características biológicas em corredores recreacionais

Abstract Objective The main objective of the present study was to compare the subjective perception of pain and symptoms of anterior knee pain with the different body mass index (BMI) classifications. The secondary objective was to verify the association between biological and anthropometric variables with the results of subjective questionnaires. Methods A total of 126 recreational runners from both genders, aged between 20 and 59 years old, were recruited. Data regarding the biological variable (age), anthropometric variables (weight, height), visual analog scale (VAS), and Lysholm and Kujala questionnaires scores were collected. Information was obtained with a digital platform, available through a single link, allowing volunteers to answer these questions using electronic devices. Normality was verified by the Shapiro-Wilk test. T-tests and Wilcoxon tests were used to compare mean values. The association between variables was determined by the Pearson linear correlation. Results There were significant differences in height between overweight and grade 1 obesity subjects (p = 0.029), in weight and BMI comparing normal weight subjects and both overweight and grade 1 obesity subjects (p < 0.001 and p < 0.05, respectively). An unclear significant correlation was observed between BMI values and specific questionnaires and subjective scale scores (p < 0.05). Conclusion Recreational runners who present high BMI values are more likely to experience knee pain than those with normal BMI values.

Resumo Objetivo O principal objetivo do presente estudo foi comparar a percepção subjetiva de dor e sintomas de dor anterior no joelho com as diferentes classificações de índice de massa corporal (IMC). O objetivo secundário foi verificar a associação entre as variáveis biológica e antropométrica com os resultados apresentados pelos sujeitos nos questionários subjetivos. Métodos Foram recrutados 126 corredores recreacionais de ambos os gêneros, com idades entre 20 e 59 anos. Foram coletados dados referentes à variável biológica idade, e as variáveis antropométricas peso e altura, além da escala visual analógica (EVA) e os questionários Lysholm e Kujala. As informações foram obtidas por meio de plataforma digital, disponibilizado em um único link, para que fossem respondidos através de dispositivos eletrônicos pelos próprios voluntários. A normalidade foi verificada por meio do teste Shapiro-Wilk. Foi utilizado o teste-T e o teste de Wilcoxon para comparação das médias. A associação entre as variáveis foi determinada pela correlação linear de Pearson. Resultados Houve diferença significativa entre a estatura do grupo sobrepeso e o grupo obesidade grau 1 (p = 0,029), e o peso do grupo peso normal para os grupos sobrepeso e obesidade grau 1 (p < 0,001), e entre as médias do IMC (p < 0,05). Foi observada correlação significativa não clara entre o IMC e os questionários específicos e a escala subjetiva (p < 0.05). Conclusão Os corredores recreacionais que possuem IMC acima dos valores de normalidade estão mais predispostos a apresentar dor no joelho do que aqueles com IMC normal.

Effect of Eccentric Exercises on Knee Function and Neuromuscular Control of Patellofemoral Pain Syndrome / 中国康复理论与实践

Objective:To investigate the effect of eccentric exercise training on knee function and neuromuscular control in patients with patellofemoral pain syndrome. Methods:From September, 2016 to September, 2019, 39 outpatients with patellofemoral pain syndrome visiting our hospital were randomly divided into control group (n = 19) and experimental group (n = 20). Both groups received routine rehabilitation, while the experimental group received eccentric training of quadriceps femoris in addition, for eight weeks. They were assessed with Visual Analogue Scale (VAS) of pain, Lysholm score, while the acceleration time was measured with Isokinetic Testing and Training System, and stability index with Dynamic Balance Tester. Results:The VAS score, acceleration time of all the muscles, and overall, anterior-posterior and medial-lateral stability indexes decreased (t > 2.521, P < 0.05), and the Lysholm score increased (|t| > 13.628, P < 0.001) in both groups after treatment, while the VAS score, acceleration time of all the muscles, overall and anterior-posterior stability indexes were less (|t| > 2.174, P < 0.05), and the Lysholm score was more (t = 11.947, P < 0.001) in the experimental group than in the control group. Conclusion:Eccentric exercise training of quadriceps femoris is effective on pain, knee function and neuromuscular control for patients with patellofemoral pain syndrome.

Kinesio Taping combined with electroacupuncture for the treatment of patellofemoral disorder in middle-aged and elderly exercise enthusiasts / 中国骨伤

OBJECTIVE@#To observe the clinical efficacy of Kinesio Taping combined with electroacupuncture in the treatment of patellofemoral disorder in middle-aged and elderly exercise enthusiasts.@*METHODS@#From April 2018 to April 2020, 62 middle-aged and elderly exercisers with patellofemoral disorder were selected and divided into observation group and control group. In the observation group, there were 30 cases:12 males and 18 females, aged from 35 to 66 years old, with an average age of (48.32±6.80) years old. The observation group was treated with Kinesio Taping and electroacupuncture . In the control group, there were 32 cases:12 males and 20 females, aged from 35 to 67 years old, with an averageage of (48.67±8.13) years old. The patients in the control group was treated with knee electroacupuncture. All the patients in both groups were treated once every other day, 3 times a week, for a total of 4 weeks. The VAS pain score and knee Lysholm score before and after treatment were compared between the two groups before and after treatment, and statistical analysis was conducted.@*RESULTS@#In the control group, 2 patients were not satisfied with the curative effect after 2 weeks of treatment and gave up treatment, while the remaining 60 patients completed all the treatments. After 4 weeks of treatment, the VAS and Lyshlom scores of the control group were 2.73±1.46 and 75.63±8.62 respectively;the VAS and Lyshlom scores of the observation group were 2.02±1.85 and 83.31±5.53 respectively;the VAS and Lyshlom scores of the observation group and the control group were better than those before treatment, and the Lyshlom scores of the observation group were better than those of the control group.@*CONCLUSION@#Kinesio Taping combined with electroacupuncture is aimed at patellofemoral disorderof middle-aged and elderly sports enthusiasts. It has little trauma, can relieve pain and has a fast onset speed, which is readily accepted by patients, and promotes the rehabilitation of knee joint function of patients, thus providing a favorable reference for the promotion in clinical application.

Osteotomía de Fulkerson modificada por Heatley para tratamiento del dolor patelofemoral: serie de casos / Heatley modified Fulkerson osteotomy for the treatment of patellar femoral pain. A case series

Introducción El síndrome de dolor patelofemoral (SDPF) es una posible causa de dolor anterior en la rodilla que afecta predominantemente a mujeres jóvenes. No existe hasta el momento un consenso en cuanto a la etiología, pero la evidencia sugiere que el malalineamiento patelofemoral probablemente desempeña un papel en la patogénesis del dolor y particularmente en la condromalacia. Las osteotomías clásicamente utilizadas y descritas en la literatura reportan resultados funcionales variables, sin embargo los buenos resultados descritos en la literatura se encuentran en un rango entre el 50%-80%, lo que indica alguna dificultad con la reproducibilidad de la técnica o su eficacia, por lo que queremos evaluar los resultados de una técnica diferente. Materiales y Métodos Estudio de serie de casos prospectivo de pacientes con síndrome de dolor patelofemoral tratados con una nueva técnica de osteotomía de la tuberosidad tibial anterior anteromedializadora en V. Resultados Se evaluaron 19 rodillas, los promedios de intensidad de dolor fueron de 9 en el preoperatorio, 4 y 3 en el seguimiento a tres y seis meses, en la escala de Kujala se obtuvo un promedio de 33 puntos en el preoperatorio, de 75 a los 3 meses y de 87 a los seis meses. Discusión En nuestro estudio consideramos un porcentaje de 94,7% de buenos o excelentes resultados y 5% de malos resultados. La técnica descrita y utilizada en nuestro estudio presenta una tasa de buenos resultados similar a las descritas en la literatura con otras técnicas quirúrgicas y con diferentes escalas funcionales.

Background Patellofemoral pain syndrome (PFPS) is a possible cause of anterior knee pain that predominantly affects young women. To date, there is no consensus regarding the aetiology, but the evidence suggests that patellofemoral misalignment probably plays a role in the pathogenesis of pain and particularly in chondromalacia. Osteotomies classically used and described in the literature report variable functional results. As the good results described in the literature are in a range between 50%-80%, this indicates some difficulty with the reproducibility of the technique, or its effectiveness, we wish to evaluate the results of a different technique. Materials and Methods Prospective case series study of patients with patellofemoral pain syndrome treated with a new osteotomy technique of the anterior tibial tuberosity, anterior-medialized, in V. Results A total of 19 knees were evaluated. The mean pain intensity was 9 in the preoperative period, and 4 and 3 in the follow-up at three and six months, respectively. A mean of 33 points on the Kujala scale was obtained in the pre-operative period, and 75 at 3 months and 87 at six months follow-up. Discussion A percentage of 94.7% was considered good or excellent results, and 5% of considered as bad. The technique described and used in our study presents a rate of good results similar to those described in the literature with other surgical techniques and with different functional scales.

Análise dos instrumentos utilizados para avaliar a dor, função e cinemática do tronco e membro inferior em pacientes com dor femoropatelar: uma revisão da literatura / Analysis of the instruments used to evaluate the pain, function and kinematics of the trunk and lower limb in patients with Parellofemoral Pain: A Literature Review

A avaliação fisioterapêutica é fundamental para o diagnóstico cinético funcional da Dor Femoropatelar (DFP), bem como para mensuração da dor, limitações funcionais e déficits musculoesqueléticos destes pacientes. A avaliação também permite avaliar prognóstico, assim como evolução do tratamento fisioterapêutico conservador. Entretanto, devido à falta de padronização e validação dos instrumentos de medida, torna-se dificultosa a escolha da ferramenta mais apropriada para avaliar o processo de reabilitação dos pacientes com DFP. O objetivo deste estudo foi identificar os instrumentos mais adequados para a avaliação da dor, função e cinemática do tronco e membro inferior em pacientes com DFP. Para tal, foi realizado uma consulta à base de dados PubMed, utilizando as palavras-chave: "patellofemoral pain syndrome", "physical therapy" "physiotherapy", "evaluation", "measurement", "kinematics", "functional test", "functional activity". Sendo considerado, artigos em idioma inglês publicados entre 2000 a 2019. Os critérios de inclusão foram: 1) estudos que abordassem instrumentos de avaliação, sendo eles, escalas de dor, questionários que mensuram limitação funcional, e testes funcionais usados para analisar a cinemática do tronco e membro inferior; 2) estudos que analisassem as propriedades clinimétricas destes instrumentos; 3) população com DFP. Foram encontrados 1.399 artigos, sendo que após a retiradas de duplicatas, leitura de títulos e resumos, foram incluídos 13 estudos nesta revisão. Tais estudos foram classificados de acordo com Oxford Centre for Evidence-Based Medicine. De acordo com a análise crítica dos artigos, pode-se afirmar que a Escala Visual Analógica e a Escala Numérica são ferramentas adequadas para mensurar a intensidade da dor nestes pacientes. O Anterior Knee Pain Scale, Activities of Daily Living Scale, Pain Severity Scale e Osteoarthritis Outcome Score Patellofemoral Subscale são eficazes para avaliar dor e função em pacientes com DFP, sendo os dois primeiros, os mais indicados. A escolha dos testes funcionais deverá ser realizada de acordo com o nível de capacidade física do paciente, sendo o Step Down Test indicado para a população sedentária, o Single Leg Squat e Single Leg Landing para população ativa, e o Single Leg Triple Hop Test para pacientes atletas.(AU)

: Physical therapy evaluation is fundamental for the functional diagnosis of Patellofemoral Pain (PFP), as well as for measuring pain, functional limitations and musculoskeletal deficits of these patients. The evaluation also allows the evaluation of prognosis, as well as evolution of conservative physiotherapeutic treatment. However, due to the lack of standardization and validation of measurement instruments, it is difficult to choose the most appropriate instrument to evaluate the rehabilitation process of patients with PFP. The aim of this study was to identify the most appropriate instruments for the evaluation of pain, function and kinematics of the trunk and lower limb in patients with PFP. For this purpose, a search was performed to the PubMed database, using the keywords: "patellofemoral pain syndrome", "physical therapy" "physiotherapy", "evaluation", "measurement", "kinematics", "functional test", "functional activity". Being considered, articles in English published between 2000 and 2019. The inclusion criteria were: 1) studies addressing assessment instruments, such as pain scales, questionnaires that measure functional limitation, and functional tests used to analyze the kinematics of the trunk and lower limb; 2) studies analyzing the clinimetric properties of these instruments; 3) population with PFP. A total of 1,399 articles were found, and after the removal of duplicates, reading of titles and abstracts, 13 studies were included in this review. Such studies were classified according to Oxford Centre for Evidence-Based Medicine. According to the critical analysis of the articles, it can be affirmed that the Visual Analog Scale and the Numerical Scale are adequate tools to measure pain intensity in these patients. The Previous Knee Pain Scale, Activities of Daily Living Scale, Pain Severity Scale and Osteoarthritis Outcome Score Patellofemoral Subscale are effective for assessing pain and function in patients with PFP, the first two being the most indicated. The choice of functional tests should be performed according to the level of physical capacity of the patient, being the Step Down Test indicated for the sedentary population, Single Leg Squat and Single Leg Landing to active population, and Single Leg Triple Hop Test to athletes patients.(AU)

Relationship of anteversion of the femoral neck with patellofemoral pain syndrome in young women not practicing regular physical activity / Relação entre a anteversão de colo do fêmur e a síndrome da dor patelofemoral em mulheres jovens não praticantes de atividade física regular

ABSTRACT BACKGROUND AND OBJECTIVES: Patellofemoral pain syndrome is an anterior knee pain (or retropatellar), associated to knee joint stress. The risk factors include musculoskeletal disorders that affect the distribution of forces acting on the knee joint, as in the femoral anteversion. The objective of this study was to verify the relationship between the femoral anteversion angle and the patellofemoral pain syndrome in young women who do not practice regular physical activity. METHODS: This is a cross-sectional, case-control study. The sample includes 100 women (G1, n=50 - anterior knee pain; G2, n=50 - control group). The instruments applied were the Anterior Knee Pain Score, numerical pain scale, and Craig's test. The groups were compared using the Student's t-test, p<0.05 for significant results (GraphPad Prism 8). RESULTS: The mean age was 21.5±3.45 and 20.9±2.85 years old for G1 and G2, respectively. Mean pain intensity was 4.6±1.97 for G1, with no pain recorded in G2 (p=0.0001). The mean anteversion angle of the femoral neck was 16.2±4.85 degrees in G1 and 15.6±4.87 degrees in G2 (p= 0.566). The average score obtained with the Anterior Knee Pain Score was 81.4±10.46 and 94.8±5.41 points for groups 1 and 2, respectively (p=0.0001). CONCLUSION: No relationship was found between angulation of the femoral neck and the presence of anterior knee pain, however, a greater functional loss in the group with pain was observed.

RESUMO JUSTIFICATIVA E OBJETIVOS: A síndrome da dor patelofemoral se manifesta com dor anterior no joelho ou retropatelar, relacionada ao aumento do "stress" articular. Os fatores de risco incluem disfunções musculoesqueléticas que afetem a distribuição de forças na articulação do joelho, como ocorre na anteversão femoral. O objetivo deste estudo foi verificar a relação do ângulo de anteversão femoral com a dor anterior no joelho de mulheres jovens não praticantes de atividade física regular. MÉTODOS: Estudo transversal, caso-controle. A amostra foi composta por 100 mulheres divididas nos grupos dor anterior no joelho (G1) e controle (G2) cada um com 50 indivíduos. Os instrumentos aplicados foram: o Anterior Knee Pain Score, a escala numérica da dor, e teste de Craig. Os grupos foram comparados entre si pelo teste t de Student, adotando-se p<0,05 para resultados significativos (GraphPad Prism 8). RESULTADOS: A média de idade foi de 21,5±3,45 e 20,9±2,85 anos para G1 e G2, respectivamente. A intensidade média da dor foi 4,6±1,97 para o G1, não havendo registro de dor no G2 (p=0,0001). A angulação média de anteversão do colo femoral foi de 16,2±4,85 graus no G1 e 15,6±4,87 graus no G2 (p=0,566). Por fim, o escore médio obtido com o Anterior Knee Pain Score foi de 81,4±10,46 e 94,8±5,41 pontos para os grupos 1 e 2, respectivamente (p=0,0001). CONCLUSÃO: Não foi encontrada relação entre angulação do colo femoral com a presença de dor anterior do joelho, no entanto, observou-se no grupo com dor havia maior perda funcional.

Patellofemoral Pain Syndrome Modifies the Movement of the Rearfoot, but It Does Not Alter Plantar Pressure Distribution / A síndrome da dor patelofemoral altera o movimento do retropé, mas não modifica a distribuição da pressão plantar

Abstract Objective To compare the plantar pressure distribution and the kinematics of the rearfoot on the stance phase of subjects with or without patellofemoral pain syndrome (PFPS). Methods A total of 26 subjects with PFPS and 31 clinically healthy subjects, who were paired regarding age, height and mass, participated in the study. The plantar pressure distribution (peak pressure) was assessed in six plantar regions, as well as the kinematics of the rearfoot (maximum eversion angle, percentage of the stance phase when the maximum angle was reached, and percentage of the stance phase in which the rearfoot was in eversion). The data were analyzed by descriptive and inferential statistics, with a significance level of p≤ 0.05. Results The pressure on the six plantar regions analyzed and the magnitude of the maximum eversion angle of the rearfoot when walking on flat surfaces did not present differences among the subjects with PFPS. However, the PFPS subjects showed, when walking, an earlier maximum eversion angle of the rearfoot than the subjects on the control group, and stayed less time with the rearfoot in eversion. Conclusion The PFPS seems to be related to modifications on the temporal pattern on the kinematics of the rearfoot.

Resumo Objetivo Comparar a distribuição da pressão plantar e a cinemática do retropé durante a fase de apoio da marcha de sujeitos com e sem síndrome da dor patelofemoral (SDPF). Métodos Participaram 26 sujeitos com SDPF e 31 clinicamente saudáveis, pareados em idade, estatura e massa corporal. Foi avaliada a distribuição da pressão plantar (pico de pressão) em seis regiões plantares, e a cinemática do retropé (ângulo máximo de eversão do retropé, porcentagem da fase de apoio da marcha em que o ângulo é atingido, e porcentagem da fase de apoio em que o retropé permaneceu em eversão). Os dados foram analisados por meio da estatística descritiva e inferencial, com nível de significância de p≤ 0,05. Resultados A pressão nas seis regiões plantares analisadas e a magnitude do ângulo máximo de eversão do retropé durante a marcha em superfície plana não se mostrou diferente nos sujeitos com SDPF. No entanto, sujeitos com SDPF apresentaram, dentro do ciclo da marcha, ângulo máximo de eversão do retropé mais cedo do que sujeitos do grupo controle, e permaneceram menos tempo com o retropé em eversão. Conclusão A SDPF parece estar relacionada à alteração no padrão temporal na cinemática do retropé.

Síndrome de Dolor Patelofemoral: revisión actualizada del tratamiento conservador / Patelofemoral Pain Syndrome: Updated review of conservative treatment

Introducción: El síndrome de dolor patelofemoral, se define como aquel dolor retro o peripatelar agravado por al menos 1 actividad que cargue la articulación en flexión. Su diagnóstico, se basa en una correcta anamnesis, examen físico y pruebas de evocación de dolor e inestabilidad. El tratamiento puede ser quirúrgico o conservador, este último, tiene como objetivo disminuir el dolor e inflamación. Sin embargo, a pesar de su alta prevalencia, existen escasos protocolos sobre su manejo, por lo que el objetivo de este trabajo es entregar una revisión de la literatura con información reciente, a modo de dar una recomendación actualizada para su tratamiento. Materiales Y Métodos: Se realizó una revisión no sistemática de estudios publicados entre enero del 2005 y agosto del 2020, utilizando los términos MeSH "Anterior knee pain", "Patellofemoral pain syndrome" y "Treatment". Se usaron como motores de búsqueda PubMed, The Cochrane Library y Trip Data base, excluyendo estudios en animales y población pediátrica. Desarrollo: El tratamiento conservador del síndrome de dolor anterior de rodilla, puede dividirse en intervenciones proximales, locales y distales, todas centradas en una correcta pauta de fortalecimientos y estiramientos de los elementos comprometidos. Se recomienda esquemas asociados de fortalecimientos de core, cadera y rodilla, sin embargo, la literatura no es consistente en pautas de tratamiento protocolizados. Conclusión: El tratamiento conservador del síndrome del dolor patelofemoral depende exclusivamente de los resultados de un correcto examen físico y de las pruebas terapéuticas correspondientes.

Introduction: Patellofemoral pain syndrome is defined as that retro or peripatellar pain aggravated by at least one activity that loads the joint in flexion. Its diagnostic is based on the correct anamnesis, physical exam, pain evocation tests and instability. The treatment can be surgical or conservative, and the last one aims to reduce pain and inflammation. However, despite its high prevalence, there are few protocols concerning its handling, so the main objective of this research is to offer a literature review with updated information, in order to give an updated recommendation for its treatment. Materials And Methods: A non-systematic review of studies published between January 2005 and August 2020 were performed, using the MeSH "Anterior knee pain", "Patellofemoral pain syndrome" and "Treatment". PubMed, The Cochrane Library, and Trip Database were used as search engines, excluding studies in animals and the pediatric population. Development: The conservative treatment of anterior knee pain syndrome, can be divided into proximal, local and distal interventions, all of them focused on a correct guide of strengthening and stretching of the elements involved. Associated schemes of core, hip and knee strengthening are recommended, nevertheless, the literature is not consistent in terms of protocolized treatment guidelines. Conclusion: The conservative treatment of patellofemoral pain syndrome depends exclusively on the results of a correct physical examination, and the corresponding therapeutic tests.

Influence of body mass index on patellofemoral pain / Influência do índice de massa corpórea na dor patelofemoral / Influencia del índice de masa corporal en el dolor patelofemoral

Abstract Introduction: Patellofemoral Pain Syndrome is characterized by retro-patellar and peripatellar pain during squatting, kneeling and running whose intensity can be related to Body Mass Index (BMI). Objective: To evaluate the relationship between overweight, pain and function in women with Patellofemoral Pain Syndrome (PFPS). Method: Cross-sectional observational study of fifty-four women with PFPS assessed in the period between January and December 2015, in the physiotherapy outpatient clinic of a tertiary hospital in the city of São Paulo. To verify the variables of pain at rest, at effort and function, the Numerical Pain Rating Scale (NPRS) and the Kujala Anterior Knee Pain Scale (AKPS) were used. The participants were divided into two groups, according to the BMI categories defined by the World Health Organization (WHO): Group 1, composed of women with normal BMI (18-24.9 kg/m²), with 36 patients, and group 2 composed of overweight women (25-29.9 k/m²), with 18 patients. Comparison between groups of pain at rest and effort and AKPS were performed using Student's t-test and Mann-Witney with statistical significance p < 0,05. Results: There was no statistically significant difference between groups for the pain at rest and effort and for AKPS. Conclusion: BMI does not impact pain intensity and function in women with PFPS.

Resumo Introdução: A síndrome da dor patelofemoral (SDPF) é por dor retropatelar e peripatelar ao subir e descer escadas, ajoelhar, agachar ou correr, cuja intensidade pode estar relacionada com o Índice de Massa Corpórea (IMC). Objetivo: Avaliar a relação entre o IMC, a dor e a função em mulheres com SDPF. Método: Estudo observacional transversal de 54 mulheres com SDPF avaliadas no período entre janeiro e dezembro de 2015, no ambulatório de fisioterapia de um hospital terciário da cidade de São Paulo. Para verificação das variáveis de dor ao repouso e ao esforço, foi utilizada a Escala Numérica de Dor e para a variável função, foi utilizada a escala Kujala de dor anterior no joelho. As participantes foram divididas em dois grupos, de acordo com o IMC, seguindo os critérios da Organização Mundial de Saúde (OMS): Grupo 1, composto por mulheres com IMC normal (18-24,9 kg/m²), com 36 pacientes, e o grupo 2 composto por mulheres com sobrepeso (25-29,9 kg/m²), com 18 pacientes. Foi realizada a comparação das médias de dor ao repouso e ao esforço e da escala Kujala de dor anterior no joelho entre os dois grupos, por meio dos testes t.-Student para amostras independentes e Mann-Witney, considerando significância estatística p < 0,05. Resultados: Não houve diferença estatisticamente significante entre os grupos para as variáveis de dor ao repouso, ao esforço e para a escala Kujala de dor anterior no joelho. Conclusão: O IMC não impacta na intensidade da dor e na função em mulheres com SDPF.

Resumen Introducción: El síndrome de dolor patelofemoral (SDPF) se caracteriza por dolor retropatelar y peripatelar al subir y bajar escaleras, arrodillarse o correr, cuya intensidad puede estar relacionada con el Índice de Masa Corporal (IMC). Objetivo: Evaluar la relación entre el IMC, el dolor y la función en mujeres con SDPF. Método: Estudio observacional transversal con 54 mujeres con SDPF evaluadas en el período entre enero y diciembre de 2015, en el ambulatorio de fisioterapia de un hospital terciario de la ciudad de São Paulo. Para verificación de las variables de dolor al reposo y al esfuerzo, se utilizó la Escala Numérica de Dolor, y para la variable función, se utilizó la escala Kujala de dolor existente en la rodilla. Las participantes se dividieron en dos grupos, de acuerdo con el IMC, siguiendo los criterios de la Organización Mundial de la Salud (OMS): grupo 1 compuesto por mujeres con IMC normal (18-24,9 kg/m²) con 36 pacientes, y el grupo 2 compuesto por mujeres con sobrepeso (25-29,9 kg/m²) con 18 pacientes. Se realizó la comparación de los promedios de dolor al reposo y al esfuerzo y de la escala entre los grupos, por medio de la prueba t de Student para las muestras independientes y de la prueba de Mann-Whitney, considerando significancia estadística p < 0,05. Resultados: No hubo diferencia estadísticamente significativa entre los grupos para las variables dolor al reposo, al esfuerzo y a la escala Kujala de dolor existente en la rodilla. Conclusión: El IMC no impacta en la intensidad del dolor y en la función de mujeres con SDPF.

McConnell patellar taping on postural control of women with patellofemoral pain syndrome: randomized clinical trial / Taping Patelar de McConnell no controle postural de mulheres com síndrome da dor patelofemoral: Ensaio Clínico Randomizado

Abstract Introduction: The effects of McConnell patellar taping on the postural control of women with patellofemoral pain syndrome (PFPS) are controversial. Objective: To evaluate the effects of McConnell patellar taping on the static one-leg stance postural control and during squatting in women with PFPS. Method: A randomized, blinded clinical trial that comprised 40 women with PFPS, aged between 18 and 35 years. The study sample was allocated to two groups: McConnell patellar taping group (MPTG) and Placebo taping group (PTG). The analysis included the one-leg static support and squat on the lower limb with PFPS. The center of pressure (CoP) displacement parameters recorded by a force platform were analyzed using two-way ANOVA and Cohen's d. Results: For the static postural control, no significant differences were found between the groups in terms of time or interaction (p>0.05); with small effect size. For the postural control during the one-leg squat, significant differences were found regarding the time of intervention for both groups, with reduced CoP parameters after the application of taping. However, the MPTG demonstrated a large effect size in frequency of oscillation and medium effect size in speed of oscillation, both during the squat exercise. Conclusion: McConnell patellar taping and placebo taping improved postural control during the one-leg squat. It should be observed that the changes and effect sizes determined for the MPTG were significantly higher compared to the PTG, emphasizing its clinical importance in the treatment of individuals with PFPS, during dynamic activities.

Resumo Introdução: Os efeitos do taping patelar de McConnell (TPM) para o controle postural de mulheres com síndrome da dor patelofemoral (SDPF) são controversos. Objetivo: Avaliar os efeitos do TPM no controle postural estático unipodal e agachamento unipodal em mulheres com SDPF. Método: O estudo é um ensaio clínico randomizado-cego, que avaliou 40 mulheres com SDPF, e idade entre 18 e 35 anos. A amostra foi randomizada em dois grupos: grupo taping patelar de McConnell (GTPM) e grupo placebo (GP). Avaliou-se o controle postural em apoio estático e agachamento unipodal, no membro inferior com SDPF. O deslocamento do centro de pressão (CoP) foi registrado por plataforma de força, e analisado com os testes ANOVA two way e tamanho do efeito (Cohen's d). Resultados: O controle postural estático não apontou diferenças significativas entre os grupos, tempos ou interação (P> 0,05); com pequeno tamanho de efeito. O controle postural em agachamento unipodal apresentou menor oscilação do centro de pressão para os dois grupos, com diferenças significativas em relação ao tempo de intervenção. No entanto, somente o GTPM demonstrou grande tamanho de efeito na frequência de oscilação e médio tamanho de efeito na velocidade de oscilação, durante o agachamento unipodal. Conclusão: O TPM e o placebo melhoraram o controle postural durante o agachamento unipodal. Deve-se observar que as mudanças e os tamanhos de efeito determinados para o GTPM foram significativamente maiores em relação ao GP, enfatizando sua importância clínica no tratamento de indivíduos com SDPF, durante atividades dinâmicas.