Now showing items 1-14 of 14

    • Valenzuela Fernández, Saúl; Miralles Lozano, Rodolfo; Muñoz, María Ignacia; Santander, Hugo; Espinoza Zúñiga, Claudia; Cavada Chacón, Gabriel; Bull Simpfendorfer, Ricardo; Gamboa Caicha, Natalia; Fuentes del Campo, Aler (Taylor and Francis, 2020)
      Objective: To compare the effect of canine guidance or group function on diaphragm activity, heart rate, and oxygen saturation during awake teeth grinding at different body positions. Methods: Fifty healthy participants, ...
    • Valenzuela Fernández, Saúl; Miralles Lozano, Rodolfo; Muñoz, María Ignacia; Santander, Hugo; Zúñiga, Claudia; Cavada Chacón, Gabriel; Bull Simpfendorfer, Ricardo; Gamboa Caicha, Natalia; Fuentes del Campo, Aler (Taylor and Francis, 2019)
      Objective: To compare the effect of canine guidance or group function on diaphragm activity, heart rate, and oxygen saturation during awake teeth grinding at different body positions. Methods: Fifty healthy participants, ...
    • Marengo Olivares, Juan José; Bull Simpfendorfer, Ricardo; Hidalgo Tapia, María Cecilia (Elsevier B.V., 1996)
      Endoplasmic reticulum vesicles isolated from rat brain cortex and fused with lipid bilayers displayed ryanodine-sensitive calcium channels, with three cytoplasmic calcium dependences. A: Channels (n = 5) stimulated by Ca2+ ...
    • Gamboa Caicha, Natalia Andrea; Miralles Lozano, Rodolfo Isaac; Valenzuela Fernandez, Saul; Santander, Hugo; Cordova Mella, Rosa; Bull Simpfendorfer, Ricardo; Espinoza, Diego; Martínez, Catalina (Taylor & Francis, 2017)
      Aim: This study compares the electromyographic (EMG) activity of the muscles from the lips and hyoid bone in subjects with or without lip competence. Methodology: Two groups of 20 subjects each, with or without lip ...
    • Miralles Lozano, Rodolfo; Gamboa Caicha, Natalia; Gutiérrez Reyes, Mario; Santander, Hugo; Valenzuela Fernández, Saúl; Bull Simpfendorfer, Ricardo; Fuentes del Campo, Aler; Córdova Mella, Rosa (Taylor and Francis, 2019)
      Objective: To compare the effect of breathing type on electromyographic (EMG) activity of respiratory muscles during tooth clenching at different decubitus positions. Methods: Forty young men participants were included, ...
    • Fuentes del Campo, Aler; Miralles Lozano, Rodolfo; Santander Navarro, Hugo; Gutiérrez Reyes, Mario; Bull Simpfendorfer, Ricardo; Martin, Conchita (Taylor & Francis, 2015)
      Objective. This study evaluated the effect of a natural mediotrusive contact on the electromyographic (EMG) activity of the anterior temporalis and sternocleidomastoid muscles during chewing in healthy subjects. Materials ...
    • Valenzuela, Saúl; Miralles, Rodolfo; Santander, Hugo; Bull, Ricardo; Córdova, Rosa; Celhay, Isabel; Cavada Chacón, Gabriel; Gutiérrez, Mario (Taylor and Francis Ltd., 2017)
      AIM: To compare the effect of breathing type on the activity of respiratory muscles at different body positions. METHODOLOGY: Two groups of 20 subjects each, one with upper costal and the other with costodiaphragmatic ...
    • Sánchez, Gina; Araneda, Felipe; Peña, Juan Pedro; Finkelstein, José Pablo; Riquelme, Jaime A.; Montecinos, Luis; Barrientos Briones, Genaro; Llanos Vidal, Paola; Pedrozo Cibils, Zully; Said, Matilde; Bull Simpfendorfer, Ricardo; Donoso Laurent, Paulina (MDPI, 2018)
      Ventricular arrhythmias are a common cause of sudden cardiac death, and their occurrence is higher in obese subjects. Abnormal gating of ryanodine receptors (RyR2), the calcium release channels of the sarcoplasmic reticulum, ...
    • Miralles, Rodolfo; Bull Simpfendorfer, Ricardo; Manns, Arturo; Roman, Enrique (1989)
      Electromyographic recordings were made from the anterior temporal and masseter muscles during maximal voluntary clenching with complete dentures in the intercuspal position and in the laterotrusive jaw position with balanced ...
    • Miralles, Rodolfo; Santander, Hugo; Ide, Walter; Bull Simpfendorfer, Ricardo (1991)
      An analysis of saliva swallowing and tonic electromyographic activity was undertaken in 15 healthy subjects with complete natural dentitions with and without a palatal base inserted. Recordings were performed by placing ...
    • Miralles, Rodolfo; Berger, Barbara; Bull Simpfendorfer, Ricardo; Manns, Arturo; Carvajal, Raul (1988)
      Integrated electromyographic (IEMG) activity was recorded in 15 children with Class II, Division 1 malocclusion undergoing treatment with an activator. EMG activity was recorded with surface electrodes from anterior temporal ...
    • Manns, Arturo; Miralles, Rodolfo; Valdivia, José; Bull Simpfendorfer, Ricardo (1989)
      A full upper stabilization splint divided into three pairs of occlusal bilateral blocks was made for eight healthy young adult subjects. The three pairs of blocks allowed the location of the centric occlusal contacts to ...
    • Fuentes, Aler D.; Martin, Conchita; Bull Simpfendorfer, Ricardo; Santander, Hugo; Gutiérrez, Mario F.; Miralles Lozano, Rodolfo Isaac (Taylor & Francis, 2016)
      Objectives: There is scarce knowledge regarding the influence of a natural mediotrusive contact on mandibular and cervical muscular activity. The purpose of this study was to analyze the EMG activity of the anterior ...
    • Ronjat, Michel; Finkelstein, José Pablo; Llanos Vidal, Paola; Montecinos, Luis; Bichraoui, Hicham; Waard, Michel De; Hidalgo Tapia, María Cecilia; Bull Simpfendorfer, Ricardo (Elsevier, 2013)
      The scorpion toxin maurocalcine acts as a high affinity agonist of the type-1 ryanodine receptor expressed in skeletal muscle. Here, we investigated the effects of the reducing agent dithiothreitol or the oxidizing reagent ...