Effects of insoles adapted in flip-flop sandals in patients with persistent plantar heel pain: A sham-controlled randomised trial.

OBJECTIVE: To evaluate the use of custom-made insoles adapted to flip-flops on pain intensity, foot function, and functional walking ability in individuals with persistent plantar heel pain in the short and medium term. DESIGN: Randomised controlled trial. SETTING: Flip-flop sandals in patients with persistent plantar heel pain. MAIN MEASURES: Participants (n = 80) were assessed at baseline, six and 12 weeks after the intervention, and 4 weeks post-intervention. RESULTS: For the primary outcomes, after 6 weeks of intervention, no between-group difference was observed in the intensity of morning pain or pain with walking, mean difference = -0.4 (95% confidence intervals = -1.5 to 0.8). Similarly, after 12 weeks of intervention, no between-group difference was observed in the intensity of morning pain or pain with walking, mean difference = -0.7 (95% confidence intervals = -1.9 to 0.6). Finally, at 4 weeks after the end of the intervention, there was no between-group difference in morning pain or pain on walking, mean difference = 0.01 (95% confidence intervals = -1.4 to 1.4). All differences and confidence intervals were smaller than the minimum clinically important difference for pain (2 points). There were no differences between the groups for the secondary outcomes. In addition, the mean differences were smaller than the minimum clinically important differences for pain intensity, foot function and functional walking ability. CONCLUSION: Custom-made insoles fitted to flip-flops did not differ from flip-flops with sham insoles in improving pain intensity, foot function and functional walking ability in people with persistent heel pain.Trial registration: ClinicalTrials.gov (Identifier: NCT04784598). Data of registration: 2023-01-20.

Lower Extremity Physical Performance Tests for the Assessment of Athletes via Telehealth are Reliable.

CONTEXT: Lower extremity physical performance tests (PPTs) have been widely used in sports rehabilitation and are commonly performed in person. However, some situations may disrupt the in-person health care delivery, such as social distancing due to the pandemic, traveling, and living in remote locations. Those situations may require adjustments in planning and applying measurement tests, and telehealth has become an alternative. Nevertheless, the reliability of lower extremity PPT tests via telehealth is still unknown. OBJECTIVES: To verify the test-retest reliability, SEM, and the minimum detectable change (MDC95) of PPTs via telehealth. METHODS: Fifty asymptomatic athletes completed 2 assessment sessions 7 to 14 days apart. The assessment via telehealth consisted of warm-up exercises followed by the single-, triple-, and side-hop tests, and the long jump test, in random order. Intraclass correlation coefficient, SEM, and MDC95 were calculated for each PPT. RESULTS: Single-hop test showed good to excellent reliability, with SEM and MDC95 ranging from 6.06 to 9.24 cm and 16.79 to 25.61 cm, respectively. The triple-hop test showed excellent reliability, with SEM and MDC95 ranging from 13.17 to 28.17 cm and 30.72 to 78.07 cm, respectively. Side-hop tests showed moderate reliability, with SEM and MDC95 ranging from 0.67 to 1.22 seconds and 2.00 to 3.39 seconds, respectively. The long jump test showed excellent reliability, with SEM and MDC95 ranging from 5.34 to 8.34 cm and 14.80 to 23.11 cm, respectively. CONCLUSION: The test-retest reliability of those PPTs via telehealth was acceptable. The SEM and MDC were provided to assist clinicians in interpreting those PPTs.

Risk Factors for Patellofemoral Pain in the Military: Systematic Review with Meta-Analysis.

BACKGROUND: The main cause for attrition of military training is musculoskeletal injuries to the knee, such as patellofemoral pain (PFP). OBJECTIVE: The purpose of this systematic review was to identify which factors increase the risk of occurrence of PFP in military personnel. STUDY DESIGN: Systematic review with meta-analysis. DATA SOURCES: Searches were performed in Medline/PubMed, CINAHL, Embase, SPORTDiscus, Web of Science, Scopus, and OpenGray. STUDY SELECTION: We included studies that were prospective cohorts including military personnel and had at least one variable assessing a risk factor for PFP. DATA EXTRACTION: Extraction was performed by the same two independent evaluators and the data was separated between the military personnel who developed PFP and those who did not. DATA SYNTHESIS: Meta-analyses were performed using standardized mean differences (SMD) and 95% confidence intervals (95%CI) and the levels of recommendation were determined. RESULTS: From 11 articles, this review grouped 7,518 military personnel, of which 572 developed PFP, characterizing a prevalence of 7.61%. We found moderate evidence that isokinetic knee extensor weakness predicts PFP in the military (SMD -0.69, 95%CI -1.02, -0.35). A higher frontal plane knee projection angle (FPKPA) during single-leg squat was also identified as a risk factor for PFP in this population (SMD 0.55, 95%CI 0.14, 0.97) with moderate level of evidence. We found moderate evidence that sex, body mass index, isometric knee extensors strength, and isokinetic knee flexors strength do not predict PFP in military personnel. Finally, there is strong evidence that age and body mass do not predict PFP in this population. CONCLUSIONS: Deficits in isokinetic knee extensor strength and a greater FPKPA are risk factors for PFP in military personnel. Since these are modifiable factors, these aspects should be considered in injury prevention interventions in the military.

Intra-rater and Inter-instrument Reliability on Range of Movement of Active Knee Extension

Abstract: The objective of the present study was to evaluate the reliability of intra-rater and inter-instrument measures during two flexibility programs. Fifty-three active and healthy males, aged between 18 and 28 years old, were randomly included in three groups: control (Cg, n = 18), static stretching (SSg, n = 17), and dynamic stretching (DSg, n = 18). All participants underwent measurements of their active range of knee extension using manual goniometry and computerized photogrammetry, measured in four separated assessments and analyzed using the SPSS, with ((5%. Both methodologies presented very strongintra-raterreliability (ICC: 0.91(0.99; P<0.001) at all four assessments in all the groups, and the instruments showed weak (r: 0.31-0.6) to strong(r: 0.61-0.9) correlation, in the Cg (P<0.05) and strong (r: 0.61-0.9) in the SSg and DSg (P<0.01), although without differences between groups, indicating that the measures are equally reliable, regardless of interventions.(AU)

Efeito do aquecimento sobre a flexibilidade e o desempenho funcional: ensaio clínico randomizado / Effect of warm-up on flexibility and functional performance: randomized clinical trial / Efecto del calentamiento sobre la flexibilidad y el rendimiento funcional: ensayo clínico aleatorizado

RESUMO Introdução: A atividade física deve ser parte fundamental de programas de promoção da saúde. No entanto, sua realização pode expor o indivíduo a riscos de lesão, o que torna necessária a adoção de medidas preventivas como o aquecimento, com o intuito de minimizar os riscos e/ou contribuir para o melhor desempenho funcional. Objetivo: O propósito deste estudo foi analisar o efeito agudo de diferentes tempos de aquecimento sobre flexibilidade, equilíbrio e desempenho funcional em indivíduos fisicamente ativos. Método: Trinta e dois homens saudáveis que realizavam exercício regularmente pelo menos três vezes por semana foram aleatoriamente incluídos em um de quatro grupos (n = 8): G0 (sem aquecimento), G5 (aquecimento por cinco min.), G10 (aquecimento por dez min.) e G15 (aquecimento por quinze min.). Os indivíduos foram avaliados antes e depois da intervenção nas seguintes variáveis: flexibilidade do reto femoral (RF) e dos isquiotibiais (IT), equilíbrio corporal com olhos abertos e fechados e desempenho funcional por meio dos testes de salto triplo horizontal (STH) e shuttle run (SR). O aquecimento foi realizado numa esteira ergométrica entre 70% e 80% da frequência cardíaca máxima estimada para idade. Resultado: Não houve diferenças significativas na flexibilidade e no equilíbrio nas comparações intra e intergrupos (p > 0,05). Contudo, houve melhora significativa do desempenho funcional somente no G10 na comparação intragrupo para as variáveis STH (de 5,88 ± 0,55 para 6,23 ± 0,66; p = 0,0051) e SR (de 4,72 ± 0,13 para 4,61 ± 0,13; p= 0,0194). Conclusão: O aquecimento durante 10 minutos parece melhorar o desempenho funcional em indivíduos ativos, podendo também ser uma alternativa viável para a prevenção de lesão.

ABSTRACT Introduction: Physical activity should be a fundamental part of health promotion programs. However, its performance can expose the individual to risk of injury, which makes it necessary to adopt preventive measures such as warm-up (WU) in order to minimize risks and/or contribute to better functional performance. Objective: The purpose of this study was to analyze the acute effect of different warm-up times on flexibility, balance, and functional performance in physically active individuals. Method: Thirty two healthy men, who exercise regularly at least three times a week, were randomly assigned to one of four groups (n=8): G0 (without WU), G5 (WU for 5 min), G10 (WU for 10 min), and G15 (WU for 15 min). The subjects were assessed before and after the intervention on the following variables: flexibility of the rectus femoris (RF) and hamstrings (HM) muscles, body balance with open and close eyes and functional performance through triple horizontal jump (THJ) and shuttle run (SR) tests. The WU was carried out on a treadmill between 70% and 80% estimated maximum heart rate for age. Results: There were no significant differences in flexibility and balance in intra and intergroup comparisons (p>0.05). However, there was a significant improvement in functional performance only in G10 in the intragroup comparison for THJ variables (5.88±0.55 to 6.23±0.66; p=0.0051) and SR variables (4.72±0.13 to 4.61±0.13; p=0.0194) variables. Conclusion: Warm-up for 10 minutes seems to improve functional performance in active individuals, and may be a viable alternative for injury preventions.

RESUMEN Introducción: La actividad física debe ser parte fundamental de los programas de promoción de la salud. Sin embargo, su realización puede exponer al individuo a riesgos de lesión, lo que hace necesaria la adopción de medidas preventivas como el calentamiento con el fin de minimizar los riesgos y/o contribuir para el mejor desempeño funcional. Objetivo: El propósito de este estudio fue analizar el efecto agudo de diferentes tiempos de calentamiento sobre flexibilidad, equilibrio y desempeño funcional en individuos físicamente activos. Método: Treinta y dos hombres sanos que hacen ejercicio regularmente por lo menos tres veces por semana fueron incluidos aleatoriamente en uno de cuatro grupos (n = 8): G0 (sin calentamiento), G5 (calentamiento por cinco minutos), G10 (calentamiento por diez minutos) y G15 (calentamiento por quince minutos). Los individuos fueron evaluados antes y después de la intervención en las siguientes variables: flexibilidad del recto femoral (RF) y de los isquiotibiales (IT), equilibrio corporal con ojos abiertos y cerrados y desempeño funcional por medio de las pruebas de salto triple horizontal (STH) y shuttle run (SR). El calentamiento se realizó en una cinta rodante entre el 70% y el 80% de la frecuencia cardiaca máxima estimada para la edad. Resultado: No hubo diferencias significativas en la flexibilidad y el equilibrio en las comparaciones intra e intergrupos (p > 0,05). Sin embargo, hubo una mejora significativa en el desempeño funcional sólo en el G10 en la comparación intragrupo para las variables STH (de 5,88 ± 0,55 a 6,23 ± 0,66, p = 0,0051) y SR (de 4,72 ± 0,13 a 4,61 ± 0,13, p = 0,0194). Conclusión : El calentamiento durante 10 minutos parece mejorar el desempeño funcional en individuos activos, pudiendo también ser una alternativa viable para la prevención de lesión.

The influence of the external ankle support on the dynamic balance in volleyball athletes / A influência do suporte externo de tornozelo na dinâmica do equilíbrio em atletas de voleibol / A influencia do suporte externo de tobillo na dinámica do equilibrio en atletas de voleibol

The purpose of this study was to assess the effect of ankle external supports on proprioception and dynamic balance in volleyball players. Seventeen female volleyball players (18.94±2.49 years; 65.45±9.49 kg; 1.71±0.05 m; BMI=22.0±2.67 kg/m²) took part in this study. The dynamic balance was assessed through the Star Excursion Balance Test (SEBT). Comparisons between stabilization (no stabilizer/NS, orthosis/ORT and functional bandaging/FB) modes and the SEBT grid lines and inter-limb were carried out. The SEBT assessment showed a significant difference between the groups NS x ORT and NS x FB (p < .01), and between the lines (p< .01). Significant line/limb interaction in DL and NDL (p< .01) was detected. The external supports tested herein showed similar effects on balance, restricting lower limb's reach in the SEBT execution in some of tested directions.

O propósito deste estudo foi avaliar o efeito de suportes externos de tornozelo na propriocepção e equilíbrio dinâmico em atletas de voleibol. Dezessete atletas de voleibol (18,94±2,49 anos; 65,45±9,49 kg; 1,71±0,05 m; IMC=22,0±2,67 kg/m²) foram analisadas. O equilíbrio dinâmico foi avaliado por meio do Star Excursion Balance Test(SEBT). Comparações foram realizadas entre os modos de estabilização (Sem Estabilizador/SE, Órtese/ORT e Bandagem Funcional/BF) e as linhas da grade do SEBT e comparação inter-membros. A avaliação do SEBT mostrou diferença significativa entre os grupos (p < 0,01), SE x ORT e SE x BF e entre as linhas (p< 0,01), além de interação linha/membro, no MD e MND (p < 0,01). Os suportes externos testados (ORT e BF) se comportaram de forma semelhante, restringindo o alcance do membro inferior na execução do SEBT em algumas das direções testadas.

El propósito de este estudio fue evaluar el efecto de los apoyos externos de tobillo en la propiocepción y el equilibrio dinámico en atletas de voleibol. Diecisiete jugadores de voleibol (18,94±2,49 años; 65,45±9,49 kg, 1,71±0,05 m, IMC=22,0±2,67 kg/m²). El equilibrio dinámico fue evaluado por el Star Excursion Balance Test(SEBT). Comparación de los modos de estabilización (Si Estabilizador/SE, Ortesis/ORT y Vendaje Funcional/VF) y las líneas de cuadrícula SEBT, y inter-miembros se fuera realizado. Evaluación del SEBT mostró una diferencia significativa entre los grupos (p< 0,01), SE x ORT, SE x BF y entre líneas (p < 0,01), además de la interacción línea/miembro en el MD y MND (p < 0,01). Los medios de estabilización externa probados (ORT x BF) se comportaron de manera similar, lo que restringe el alcance de las extremidades inferiores en la ejecución del SEBT en algunas de las direcciones probadas.

Reliability of the intra and inter-test measures with universal goniometer and podalic arthrometer of the active range of ankle inversion and eversion / Fiabilidad de las medidas inter y intra-ensayo con goniómetro universal y artrómetro podálico de la amplitud activa de inversión y eversión del tobillo / Fidedignidade das medidas inter e intratestes com goniômetro universal e artrômetro podálico da amplitude ativa de eversão e inversão do tornozelo

The objective this study was to evaluate intra and inter-rater and inter-instruments reliability of ankle inversion and eversion active range of motion. The study included 100 healthy individuals (71 women and 29 men; ages: 21.32±2.83 years old; body mass: 60.40±4.95 kg; height: 1.66±0.04 m; and body mass index: 21.89±2.83 kg/m2), who were submitted to measurement of ankle inversion and eversion using the universal goniometer and podalic arthrometer. We used the intra-class correlation coefficient (ICC) and Pearson's test, considering a 5% significance level. The results of this study demonstrated one very strong intra-rater ICC (0.91≥0.99; p<0.01) and a strong inter-rater (0.61≥0.9; p<0.01) in both the first and second measurements, especially when measured with the podalic arthrometer (ICC>0.8; universal goniometer: ICC<0.8). The inter-instruments correlation was proved as being regular and significant (0.31≥r≤0.6; p<0.01) for all evaluators and evaluations. Both tested instruments can be used in physical therapy practice for measurements of ankle inversion and eversion due to the high reliability presented, regardless of the evaluator's previous experience, especially the podalic arthrometer when compared to the universal goniometer, which is probably due to the lower influence that the appraiser has on the instrument during measurements.

El objetivo del estudio fue evaluar la fiabilidad de las medidas intra e inter-evaluadores e inter-instrumentos de la amplitud del movimiento activa de eversión e inversión del tobillo. Participaron de este estudio 100 sujetos sanos (71 mujeres y 29 hombres; edad: 21,32±2,83 años; masa corporal: 60,40±4,95 kg; estatura: 1,66±0,04 m e índice de masa corporal: 21,89±2,83 kg/m2), que fueron sometidos a la medición de inversión y eversión del tobillo con goniómetro universal y artrómetro podálico. Se utilizó el coeficiente de correlación intraclase (CCI) y la prueba de Pearson, teniendo en cuenta un nivel de significancia del 5%. Los resultados del estudio demostraron un CCI intra-evaluador muy fuerte (0,91≥0,99; p<0,01) y del inter-evaluador fuerte (0,61≥0,9; p<0,01), en la primera y en la segunda medición, especialmente cuando medidas con el artrómetro podálico (CCI>0,8; goniómetro universal: CCI<0,8). La correlación inter-instrumentos se mostró regular y significante (0,31≥r≤0,6; p≤0,01) para todos los evaluadores y evaluaciones. Los dos instrumentos probados pueden ser utilizados en las medidas de inversión y eversión del tobillo por su alta fiabilidad presentada, independientemente de la experiencia del evaluador. Sin embargo, las medidas del artrómetro podálico mostraron una mayor fiabilidad en comparación al goniómetro universal probablemente por la menor influencia que el evaluador ejerce sobre el instrumento durante la medición.

O objetivo deste estudo foi avaliar a confiabilidade das medidas intra- e interavaliadores e interinstrumentos da amplitude de movimento ativa de eversão e inversão do tornozelo. Participaram deste estudo 100 indivíduos saudáveis (71 mulheres e 29 homens; idade: 21,32±2,83 anos; massa corporal: 60,40±4,95 kg; estatura: 1,66±0,04 m; e índice de massa corporal de 21,89±2,83 kg/m2), os quais foram submetidos à mensuração de inversão e eversão do tornozelo com goniômetro universal e artrômetro podálico. Foram utilizados o coeficiente de correlação intraclasse (CCI) e o teste de Pearson, considerando-se um nível de significância de 5%. Os resultados deste estudo demonstraram um CCI intra-avaliador muito forte (0,91≥0,99; p<0,01) e interavaliador forte (0,61≥0,9; p<0,01), tanto na primeira quanto na segunda medida, especialmente quando mensuradas com o artrômetro podálico (CCI>0,8; goniômetro universal: CCI<0,8). A correlação interinstrumentos mostrou-se regular e significante (0,31≥r≤0,6; p<0,01) para todos os avaliadores e avaliações. Ambos os instrumentos testados podem ser utilizados na prática fisioterapêutica para as medidas de inversão e eversão do tornozelo pela alta confiabilidade apresentada, independentemente da experiência do avaliador, especialmente o artrômetro podálico comparado ao goniômetro universal, provavelmente, pela menor influência que o avaliador exerce sobre o instrumento durante a medida.