Listar por autor UPNA "Malanda Trigueros, Armando"

Mostrando ítems 1-17 de 17

    • Association of intrinsic capacity with incidence and mortality of cardiovascular disease: prospective study in UK Biobank 

      Ramírez Vélez, Robinson; Iriarte-Fernández, María; Santafé Rodrigo, Guzmán Upna Orcid; Malanda Trigueros, Armando Upna Orcid; Beard, John R.; García Hermoso, Antonio; Izquierdo Redín, Mikel (Wiley, 2023)   Artículo / Artikulua  OpenAccess
      Background: The World Health Organization proposed the concept of intrinsic capacity (IC; the composite of all the physical and mental capacities of the individual) as central for healthy ageing. However, little research ...

    • Association of intrinsic capacity with respiratory disease mortality 

      Ramírez Vélez, Robinson; Iriarte-Fernández, María; Santafé Rodrigo, Guzmán Upna Orcid; Malanda Trigueros, Armando Upna Orcid; Beard, John R.; García Hermoso, Antonio; Izquierdo Redín, Mikel (Elsevier, 2023)   Artículo / Artikulua
      The World Health Organization (WHO) introduced a framework for healthy aging in 2015 that emphasizes functional ability instead of absence of disease. Healthy ageing is defined as “the process of building and maintaining ...

    • Automatic jitter measurement in needle-detected motor unit potential trains 

      Malanda Trigueros, Armando Upna Orcid; Stashuk, Daniel W.; Navallas Irujo, Javier; Rodríguez Falces, Javier Upna Orcid; Rodríguez Carreño, Ignacio; Valle, César; Garnés Camarena, Óscar (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
      In an active motor unit (MU), the time intervals between the firings of its muscle fibers vary across successive MU activations. This variability is called jitter and is increased in pathological processes that affect the ...

    • EMG modeling 

      Rodríguez Falces, Javier Upna Orcid; Navallas Irujo, Javier Upna Orcid; Malanda Trigueros, Armando Upna Orcid (InTechOpen, 2012)   Capítulo de libro / Liburuen kapitulua  OpenAccess
      The aim of this chapter is to describe the approaches used for modelling electromyographic (EMG) signals as well as the principles of electrical conduction within the muscle. Sections are organized into a progressive, ...

    • EMG probability density function: a new way to look at EMG signal filling from single motor unit potential to full interference pattern 

      Navallas Irujo, Javier; Eciolaza Ferrando, Adrián Upna; Mariscal, Cristina; Malanda Trigueros, Armando Upna Orcid; Rodríguez Falces, Javier Upna Orcid (IEEE, 2023)   Artículo / Artikulua  OpenAccess
      An analytical derivation of the EMG signal's amplitude probability density function (EMG PDF) is presented and used to study how an EMG signal builds-up, or fills, as the degree of muscle contraction increases. The EMG PDF ...

    • Exact inter-discharge interval distribution of motor unit firing patterns with gamma model 

      Navallas Irujo, Javier Upna Orcid; Porta Cuéllar, Sonia Upna Orcid; Malanda Trigueros, Armando Upna Orcid (Springer, 2019)   Artículo / Artikulua  OpenAccess
      Inter-discharge interval distribution modeling of the motor unit firing pattern plays an important role in electromyographic decomposition and the statistical analysis of firing patterns. When modeling firing patterns ...

    • Independent component analysis as a tool to eliminate artifacts in EEG. A quantitative study 

      Iriarte, Jorge; Urrestarazu, Elena; Valencia Ustárroz, Miguel; Alegre, Manuel; Malanda Trigueros, Armando Upna Orcid; Viteri, César; Artieda, Julio (Lippincott, Williams & Wilkins, 2003)   Artículo / Artikulua  OpenAccess
      Independent component analysis (ICA) is a novel technique that calculates independent components from mixed signals. A hypothetical clinical application is to remove artifacts in EEG. The goal of this study was to apply ...

    • M-wave changes caused by brief voluntary and stimulated isometric contractions 

      Rodríguez Falces, Javier Upna Orcid; Malanda Trigueros, Armando Upna Orcid; Navallas Irujo, Javier; Place, Nicolas (Springer, 2023)   Artículo / Artikulua  OpenAccess
      Introduction Under isometric conditions, the increase in muscle force is accompanied by a reduction in the fbers’ length. The efects of muscle shortening on the compound muscle action potential (M wave) have so far been ...

    • Masked least-squares averaging in processing of scanning-EMG recordings with multiple-discharges 

      Corera Orzanco, Íñigo Upna Orcid; Malanda Trigueros, Armando Upna Orcid; Rodríguez Falces, Javier Upna Orcid; Navallas Irujo, Javier Upna Orcid (Springer, 2020)   Artículo / Artikulua  OpenAccess
      Removing artifacts from nearby motor units is one of the main objectives when processing scanning-EMG recordings. Methods such as median filtering or masked least-squares smoothing (MLSS) can be used to eliminate artifacts ...

    • A masked least-squares smoothing procedure for artifact reduction in scanning-EMG recordings 

      Corera Orzanco, Íñigo Upna Orcid; Eciolaza Ferrando, Adrián Upna; Rubio Zamora, Oliver Upna; Malanda Trigueros, Armando Upna Orcid; Rodríguez Falces, Javier Upna Orcid; Navallas Irujo, Javier Upna Orcid (Springer, 2018)   Artículo / Artikulua  OpenAccess
      Scanning-EMG is an electrophysiological technique in which the electrical activity of the motor unit is recorded at multiple points along a corridor crossing the motor unit territory. Correct analysis of the scanning-EMG ...

    • Métodos de procesamiento y análisis de señales electromiográficas 

      Gila Useros, Luis; Malanda Trigueros, Armando Upna Orcid; Rodríguez Carreño, Ignacio Upna; Rodríguez Falces, Javier Upna Orcid; Navallas Irujo, Javier Upna Orcid (Gobierno de Navarra, 2009)   Artículo / Artikulua  OpenAccess
      La electromiografía clínica es una metodología de registro y análisis de la actividad bioeléctrica del músculo esquelético orientada al diagnóstico de las enfermedades neuromusculares. Las posibilidades de aplicación y el ...

    • Modelling fibrillation potentials: analysis of time parameters in the muscle intracellular action potential 

      Rodríguez Falces, Javier Upna Orcid; Malanda Trigueros, Armando Upna Orcid; Gila Useros, Luis; Rodríguez Carreño, Ignacio Upna; Navallas Irujo, Javier Upna Orcid (IEEE, 2007)   Artículo / Artikulua  OpenAccess
      A single fibre action potential (SFAP) can be modelled as the convolution of a biolectrical source and a filter impulse response. In the Dimitrov-Dimitrova (D-D) convolutional model, the first temporal ...

    • Motor unit action potential duration, I: variability of manual and automatic measurements 

      Rodríguez Carreño, Ignacio Upna; Gila Useros, Luis; Malanda Trigueros, Armando Upna Orcid; García Gurtubay, Ignacio; Mallor Giménez, Fermín Upna Orcid; Gómez Elvira, Sagrario Upna; Rodríguez Falces, Javier Upna Orcid; Navallas Irujo, Javier Upna Orcid (Lippincott, Williams & Wilkins, 2007)   Artículo / Artikulua  OpenAccess
      To analyze the variability in manual measurements of motor unit action potential (MUAP) duration and to evaluate the effectiveness of well-known algorithms for automatic measurement. Two electromyographists carried out ...

    • Motor unit action potential duration, II: a new automatic measurement method based on the wavelet transform 

      Rodríguez Carreño, Ignacio Upna; Gila Useros, Luis; Malanda Trigueros, Armando Upna Orcid; García Gurtubay, Ignacio; Mallor Giménez, Fermín Upna Orcid; Gómez Elvira, Sagrario Upna; Rodríguez Falces, Javier Upna Orcid; Navallas Irujo, Javier Upna Orcid (Lippincott, Williams & Wilkins, 2007)   Artículo / Artikulua  OpenAccess
      To present and evaluate a new algorithm, based on the wavelet transform, for the automatic measurement of motor unit action potential (MUAP) duration. A total of 240 MUAPs were studied. The waveform of each MUAP was ...

    • Motor unit profile: a new way to describe the scanning-EMG potential 

      Corera Orzanco, Íñigo Upna Orcid; Malanda Trigueros, Armando Upna Orcid; Rodríguez Falces, Javier Upna Orcid; Porta Cuéllar, Sonia Upna Orcid; Navallas Irujo, Javier Upna Orcid (Elsevier, 2017)   Artículo / Artikulua  OpenAccess
      The motor unit profile, a representation of the trajectories of positive and negative turns of a scanning-EMG signal, is a new way to characterize the motor unit potential. Such characterization allows quantification of ...

    • A new muscle architecture model with non-uniform distribution of muscle fiber types 

      Navallas Irujo, Javier Upna Orcid; Malanda Trigueros, Armando Upna Orcid; Gila Useros, Luis; Rodríguez Falces, Javier Upna Orcid; Rodríguez Carreño, Ignacio Upna (World Academy of Science, Engineering and Technology, 2007)   Artículo / Artikulua  OpenAccess
      According to previous studies, some muscles present a non-homogeneous spatial distribution of its muscle fiber types and motor unit types. However, available muscle models only deal with muscles with homogeneous ...

    • Sliding window averaging in normal and pathological motor unit action potential trains 

      Malanda Trigueros, Armando Upna Orcid; Navallas Irujo, Javier Upna Orcid; Rodríguez Falces, Javier Upna Orcid; Porta Cuéllar, Sonia Upna Orcid; Fernández Martínez, Miguel (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      Objective: To evaluate the performance of a recently proposed motor unit action potential (MUAP) averaging method based on a sliding window, and compare it with relevant published methods in normal and pathological muscles. ...
      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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