Now showing items 1-16 of 16

    • Actividad electromiográfica (EMG) durante el pedaleo, su utilidad en el diagnóstico de la fatiga en ciclistas 

      Córdova Martínez, Alfredo; Nuin, Iván; Fernández-Lázaro, Diego; Latasa Zudaire, Iban Alexander Upna Orcid; Rodríguez Falces, Javier Upna Orcid (SEMED - FEMEDE, 2017)   Artículo / Artikulua  OpenAccess
      La fatiga muscular tiene múltiples definiciones, pero con una misión especial cual es la misión protectora, avisando al organismo sobre la debilidad o la aparición de una incapacidad funcional. En esta revisión se hace ...
    • Correlation between discharge timings of pairs of motor units reveals the presence but not the proportion of common synaptic input to motor neurons 

      Rodríguez Falces, Javier Upna Orcid; Negro, Francesco; Farina, Dario (American Physiological Society, 2017)   Artículo / Artikulua  OpenAccess
      We investigated whether correlation measures derived from pairs of motor unit (MU) spike trains are reliable indicators of the degree of common synaptic input to motor neurons. Several 50-s isometric contractions of the ...
    • Determinación de los umbrales ventilatorios, metabólicos y electromiográficos durante el test de esfuerzo incremental en ciclistas de elite 

      Latasa Zudaire, Iban Alexander Upna Orcid (2019)   Tesis doctoral / Doktoretza tesia  OpenAccess
      La fatiga muscular tiene múltiples definiciones, pero indudablemente su principal misión es la protección. La electromiografía de superficie (sEMG) es una técnica adecuada para comprender los patrones de activación musculares, ...
    • Electromyographic, cerebral, and muscle hemodynamic responses during intermittent, isometric contractions of the biceps brachii at three submaximal intensities 

      Bhambhani, Yagesh; Fan, Jui Lin; Place, Nicolas; Rodríguez Falces, Javier Upna Orcid; Kayser, Bengt (Frontiers Media, 2014)   Artículo / Artikulua  OpenAccess
      This study examined the electromyographic, cerebral and muscle hemodynamic responses during intermittent isometric contractions of biceps brachii at 20, 40, and 60% of maximal voluntary contraction (MVC). Eleven volunteers ...
    • 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, ...
    • End-of-fiber signals strongly influence the first and second phases of the M wave in the vastus lateralis: implications for the study of muscle excitability 

      Rodríguez Falces, Javier Upna Orcid; Place, Nicolas (Frontiers Media, 2018)   Artículo / Artikulua  OpenAccess
      It has been recurrently observed that, for compound muscle action potentials (M wave) recorded over the innervation zone of the vastus lateralis, the descending portion of the first phase generally shows an 'inflection' ...
    • Evaluation of the electromyography test for the analysis of the aerobic-anaerobic transition in elite cyclists during incremental exercise 

      Latasa Zudaire, Iban Alexander Upna Orcid; Córdova Martínez, Alfredo; Quintana Ortí, Gregorio; Lavilla Oiz, Ana; Navallas Irujo, Javier Upna Orcid; Rodríguez Falces, Javier Upna Orcid (MDPI, 2019)   Artículo / Artikulua  OpenAccess
      (1) Background: The aim of this study was to investigate the validity and reliability of surface electromyography (EMG) for automatic detection of the aerobic and anaerobic thresholds during an incremental continuous cycling ...
    • 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 ...
    • Scanning electromyography 

      Navallas Irujo, Javier Upna Orcid; Rodríguez Falces, Javier Upna Orcid; Stålberg, Erik (InTechOpen, 2012)   Capítulo de libro / Liburuen kapitulua  OpenAccess
      The study of the anatomy and physiology of the motor unit has important implications in the diagnosis and follow-up of neuromuscular pathologies. Muscle action potentials allow the use of electrophysiological techniques ...
    • 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. ...