A model to differentiate WAD patients and people with abnormal pain behaviour based on biomechanical and self-reported tests

[EN] The prevalence of malingering among individuals presenting whiplash-related symptoms is significant and leads to a huge economic loss due to fraudulent injury claims. Various strategies have been proposed to detect malingering and symptoms exaggeration. However, most of them have been not consistently validated and tested to determine their accuracy in detecting feigned whiplash. This study merges two different approaches to detect whiplash malingering (the mechanical approach and the qualitative analysis of the symptomatology) to obtain a malingering detection model based on a wider range of indices, both biomechanical and self-reported. A sample of 46 malingerers and 59 genuine clinical patients was tested using a kinematic test and a self-report questionnaire asking about the presence of rare and impossible symptoms. The collected measures were used to train and validate a linear discriminant analysis (LDA) classification model. Results showed that malingerers were discriminated from genuine clinical patients based on a greater proportion of rare symptoms vs. possible self-reported symptoms and slower but more repeatable neck motions in the biomechanical test. The fivefold cross-validation of the LDA model yielded an area under the curve (AUC) of 0.84, with a sensitivity of 77.8% and a specificity of 84.7%.Open access funding provided by Universita degli Studi di Padova within the CRUI-CARE Agreement. This work was supported by funding from the European Union's Horizon 2020 research and innovation program under grant agreement No 777090Monaro, M.; De Rosario Martínez, H.; Baydal Bertomeu, JM.; Bernal-Lafuente, M.; Masiero, S.; Macía-Calvo, M.; Cantele, F.... (2021). A model to differentiate WAD patients and people with abnormal pain behaviour based on Biomechanical and self-reported tests. 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Seis ediciones y 220 alumnos en el Máster en Valoración Biomecánica Clínica de la UPV: claves de su éxito en España y Latinonamérica

[ES] El Máster en Valoración Biomecánica Clínica surgió en 2014 como resultado de la colaboración entre la Universitat Politècnica de Valencia (UPV) y el Instituto de Biomecánica (IBV). Seis ediciones y 220 alumnos después echamos la vista atrás reflexionando y valorando los aspectos que han hecho posible mantenernos como referentes en formación biomecánica de calidad tanto a nivel nacional como internacional.Maranchon Perez, S.; Vivas Broseta, MJ.; Garrido Jaen, JD.; Peydro De Moya, MF.; Herrera-Ligero, C.; Pitarch Corresa, S.; Medina Ripoll, E.... (2020). Seis ediciones y 220 alumnos en el Máster en Valoración Biomecánica Clínica de la UPV: claves de su éxito en España y Latinonamérica. Revista de Biomecánica (Online). (67):1-6. http://hdl.handle.net/10251/176113S166

Contribución del análisis cinético de la marcha a la valoración de los trastornos del equilibrio

La marcha es objeto de valoración clínica en pacientes con trastornos del equilibrio que manifiestan sensación de caída al caminar. El sistema NedAMH/IBV, que fue desarrollado partir de estudios de pacientes con patologías del aparato locomotor, proporciona un índice de capacidad funcional de la marcha. Este estudio pretende determinar la contribución del NedAMH/IBV a la valoración dinámica de pacientes con trastornos del equilibrio. Se ha analizado la marcha de 365 pacientes y 60 controles con el sistema NedAMH/IBV, obteniéndose sus parámetros cinéticos. Partiendo de estos parámetros y mediante un análisis de regresión logística, se obtiene un nuevo índice que cuantifica la alteración dinámica del equilibrio en estos pacientes. Los resultados muestran que existe gran similitud entre el nuevo índice y el que proporciona el sistema NedAMH/IBV y que su correlación con el estado clínico del paciente es significativa y de igual magnitud para ambos. Por tanto, el análisis de marcha con el sistema NedAMH/IBV y su índice de capacidad funcional ha sido integrado en el protocolo de valoración de los trastornos del equilibrio como prueba dinámica

Static posturography with dynamic tests. Usefulness of biomechanical parameters in assessing vestibular patients

[ES] Introducción y objetivos: La posturografía permite evaluar el control postural de un sujeto. En este estudio se presentan aquellos parámetros biomecánicos del sistema de posturografía empleado, que han resultado útiles para valorar funcionalmente los pacientes vestibulares de nuestra muestra. Material y métodos: De un total de 89 participantes, 59 eran sujetos sanos y 30 presentaban un trastorno vestibular periférico. Todos ellos realizaron un estudio posturográfico mediante el sistema NedSVE/IBV que combina pruebas estáticas (Romberg) y dinámicas (límites de estabilidad y control rítmico-direccional). Posteriormente se compararon las medidas halladas en uno y otro grupo. Resultados: Los sujetos normales presentaron menores oscilaciones que los enfermos en los distintos parámetros posturográficos estudiados (excepto en el ángulo de desplazamiento) de forma estadísticamente significativa. En la prueba de los límites de estabilidad, aunque los sujetos normales lograron desplazamientos máximos mayores que los enfermos, las diferencias halladas no fueron significativas. En la prueba de control rítmico y direccional, los sujetos normales presentaron resultados más favorables que los patológicos y las diferencias fueron significativas en 3 de los 4 parámetros estudiados: 1) habilidad anteroposterior, 2) habilidad mediolateral, y 3) control y eficacia anteroposterior. Conclusión: Los parámetros del sistema de posturografía estática empleado y la prueba de control rítmico y direccional resultaron de utilidad para discriminar entre los sujetos normales y patológicos de nuestra muestra.[EN] Introduction and objective: Posturography allows evaluating postural control. This study showed the posturographic parameters that were useful for assessing the functional ability to maintain balance in our sample of vestibular patients. Material and methods: Of a total of 89 patients, 59were healthy subjects and 30 had a peripheral vestibular disorder. The subjects were studied using the posturographic NedSVE/IBV system, combining static (Romberg) and dynamic (stability limits and rhythmic weight shifts)tests. We then compared the measurements found in the groups. Results: Normal subjects showed signi¿cantly lower oscillations than our patients in all of the posturographic parameters studied (except the displacement angle). In testing the limits of stability, although normal subjects achieved maximum displacements greaterthan the subjects with the disorder, the differences found were not signi¿cant. In rhythmic weight shift tests, normal subjects showed more favourable results than did the vestibular patients, with signi¿- cant differences in 3 of the 4 parameters studied: 1) anteroposterior ability, 2) mediolateral ability, and 3) anteroposterior control and ef¿ciency. Conclusion: Rhythmicweight shifttests andthe staticposturography testparameters usedwere useful in discriminating among the normal and pathological subjects in this study. © 2011 Elsevier España, S.L. All rights reserved.Balaguer Garcia, R.; Pitarch Corresa, S.; Baydal Bertomeu, JM.; Morales Suárez-Varela, MM. (2012). Posturografía estática con pruebas dinámicas. Utilidad de los parámetros biomecánicos en la valoración del paciente vestibular. Acta Otorrinolaringológica Española. 63(5):332-338. doi:10.1016/j.otorri.2012.03.006S33233863

Mobiliario urbano reciclado para la ciudad del futuro

The ECO-RUBBER project has implemented the design and manufacture of recycled urban furniture through an innovative process of grinding and sintering. The key differentiation has been the use of recycled rubber from end- of-life tyres (ELT) and its application into urban environment to make a city more sustainable, secure and friendly to its inhabitants. The experimental proposal developed a bollard made of 89% recycled material with new functionalities that reduce the risk of an injury to cyclists, motorcyclists and pedestrians if an accident happens Furthermore, in order to improve the perceived quality of recycled rubber products, an identifier for recognizing its environmental advantages was develop.En el proyecto ECO-RUBBER se ha puesto a punto el diseño y fabricación de mobiliario urbano reciclado mediante un proceso innovador de triturado sinterizado. Las claves de diferenciación han sido el uso de caucho reciclado proveniente de neumáticos fuera de uso (NFU) y su aplicación en el entorno urbano para conseguir una ciudad más sostenible, segura y amigable para las personas. La propuesta experimental ha desarrollado un bolardo con un 89% de material reciclado con nuevas funciones que disminuyen el riesgo de lesión para ciclistas, motoristas y viandantes en accidentes. Además, con el fin de mejorar la calidad percibida de los productos de caucho reciclado, se ha desarrollado un identificador que ayude a valorar sus ventajas medioambientales