Browsing by Subject "Heart rate"

Now showing 1 - 14 of 14
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    AI and wearable sensors in Higher Education to investigate Public Speaking Skills
    (Universidad de Murcia, Servicio de Publicaciones, 2026-01-01) Gratani, Francesca; Capolla, Lorenza Maria; Dafoulas, Georgios; Tsiakara, Ariadni; Kapetanakis, Stelios; Nalli, Giacomo; Giannandrea, Lorella; Sin departamento asociado
    La capacidad de comunicarse eficazmente con el público se considera una habilidad esencial para el avance profesional. Sin embargo, la literatura científica muestra que los trastornos de ansiedad se encuentran entre los trastornos mentales más comunes que padecen los oradores públicos. El presente estudio involucra a estudiantes universitarios de dos contextos y países diferentes y examina su ansiedad al hablar en público mediante el cruce de datos sobre autopercepciones cognitivas, reacciones fisiológicas (frecuencia cardíaca) y aspectos conductuales (expresiones faciales y movimientos corporales). También explora el potencial de los dispositivos portátiles y la inteligencia artificial en la recopilación y el análisis de datos para identificar diferentes perfiles de estudiantes según sus niveles de estrés y ansiedad al hablar en público. El análisis cruzado mostró una buena consistencia y reveló diferencias interesantes entre las dos muestras, incluyendo grupos relacionados con el estrés y estados emocionales. Los datos obtenidos animan a seguir investigando las variables asociadas con la oratoria y las habilidades oratorias. Los desarrollos futuros podrían explorar la contribución potencial de estas herramientas para ayudar a los profesores a diseñar una formación personalizada eficaz y discutir los resultados con los estudiantes para promover la conciencia de sus debilidades y fortalezas.
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    Analysis of speech rhythm and heart rate as indicators of stress on student interpreters
    (Taylor and Francis Group Routledge, 2021-03-30) Rojo López, Ana María; Foulquié Rubio, Ana Isabel; Espín López, Laura; Martínez Sánchez, Francisco (1960); Traducción e Interpretación; Anatomía Humana y Psicobiología; Psicología Básica y Metodología
    Stress is assumed to be intrinsic to interpreting and the ability to manage it a presumed predictor of performance. And yet, empirical research on the role of stress in interpreting has remained scarce. This study explores the impact of stress and anxiety on the academic scores, heart rate (HR) and speech rhythm of 23 student interpreters in a liaison interpreting task. Participants’ stress and anxiety are measured using HR measures and the STAI test. Their speech rhythm is automatically analyzed through different indexes deriving from the variability of syllabic intervals. Results show that students’ grades negatively correlate with their levels of state anxiety, which are, in turn, significantly related to their rhythmic parameters in L1-L2 interpreting. Greater rhythmic variability correlates with students’ lower examination scores when speech is delivered into their L2. A significant increase in mean HR is reported during the interpreting task phase as compared with baseline and recovery phase, suggesting that HR was a sensitive marker to detect the students’ stress response, but not to the level of influencing performance. Results point to the need to triangulate different measures to obtain a complete picture of how stress and anxiety may impact interpreting performance.
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    Analysis of the amount of lost fluids, some blood components and mineral salts in volleyball under hot weather conditions
    (Universidad de Murcia, Servicio de Publicaciones, 2023) Badwi Shbeeb, Huda; Saeed Almousawi, Suhad Qasim; Mousa Jawad, Sundus
    The research objective was to study the amount of lost fluids, some blood components and mineral salts in volleyball players under hot weather conditions. The sample of the present study was composed of 12 volleyball players of Al-Sinaa Club (Baghdad, Iraq) in the 2022/2023 season. The variables analyzed in this study were: Heart rate before and after exercise, internal and external body temperature before and after exertion, potassium ion, sodium ion, calcium ion, and the amount of fluid lost (the player's weight) before and after the exercise. The tests were conducted at a temperature between 42-47 degrees Celsius. The maximum anaerobic exercise was performed with volleyball. The results showed that to play volleyball under hot weather conditions (42-47 degrees Celsius) significantly increased the following variables in volleyball players: heart rate, external body temperature, internal body temperature, sodium ion and calcium ion. However, potassium ion significantly decreased. Therefore, training in hot weather has positive physical repercussions. The authors recommend to train in different weather conditions.
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    Autonomic markers associated with generalized social phobia symptoms: heart rate variability and salivary alpha-amylase
    (Taylor and Francis Group, 2017) Espín López, Laura; García Rubio, María J.; Hidalgo, Vanesa; Salvador, Alicia; Gómez Amor, Jesús; Anatomía Humana y Psicobiología; Facultades de la UMU::Facultad de Psicología y Logopedia
    The study of autonomic nervous system changes associated with generalized social phobia (GSP) dis- order has increased in recent years, showing contradictory results. The present study aimed to evaluate how young people with GSP reacted before, during, and after exposure to the Trier Stress Social Test (TSST), focusing on their autonomic changes (heart rate variability (HRV) and salivary alpha-amylase (sAA)) compared to a control group (non-GSP). Some psychological variables were also considered. Sex was specifically studied as a possible modulator of autonomic fluctuations and psychological state. Eighty young people were randomly distributed into two counterbalanced situations: stress condition (N1⁄418 and 21 for GSP and non-GSP, respectively) and control condition (N1⁄421 and 20 for GSP and non-GSP, respectively), where cardiovascular variables were continuously recorded. Psychological ques- tionnaires about mood and perceived stress were filled out, and five saliva samples were collected to analyze sAA. GSP participants showed higher values on low- and high-frequency ratios (HR domains), compared to non-GSP people, during exposure to the TSST, but no differences were observed after the stressor. Furthermore, the two groups did not differ in sAA. Importantly, positive affect in GSP partici- pants was modulated by sex. The present study suggests that the balance between high- and low-fre- quency domains of HRV is a key cardiovascular marker reflecting the stress response of GSP people, as well the importance of sex in positive affect when facing a stressful situation.
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    Autonomic reactivity in blood-injection-injury and snake phobia
    (Elsevier, 2018-12) Maldonado, Enrique F.; Pineda, Sara; Torrente, Ginesa; Carrillo Verdejo, María Eduvigis; Sánchez Navarro, Juan Pedro; Martínez Selva, José María; Anatomía Humana y Psicobiología
    Objective: This research aimed to study the salivary flow and other autonomic reactions -heart rate (HR) and skin conductance response (SCR)- in blood-injection-injury (BII) phobia and snake phobia participants, under the assumption that exposure to blood-related pictures in BII phobia will provoke an increase in parasympathetic activity that, in turn, will lead to a greater saliva production than other affective contents. Methods: We selected 18 BII phobia and 14 snake phobia participants along with 22 non-phobia individuals. All participants were exposed to 3 blocks of pictures (12 pictures per block) depicting either mutilations, snakes or neutral, household objects. Saliva samples were taken in the 2-min interval before and after each block. Results: In comparison to other contents, blood-related pictures provoked an increase in salivary flow in BII phobia participants, as well as an increase in the number of SCRs. In the snake phobia group, snake pictures provoked HR acceleration, but the SCRs they elicited did not differ from the SCRs provoked by the blood-related pictures. Conclusion: BII phobia individuals react to their phobic object with a series of physiological changes resulting from a sympathetic-parasympathetic co-activation. This is in contrast with other specific phobias (e.g., small animal phobias) that usually show a sympathetically mediated, defensive reactivity when exposed to their disorder-relevant stimuli. These data support the use of therapeutic interventions in BII phobia that may differ in some respect from those used in other specific phobias.
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    Cardiovascular response to stress in patients with drug-resistant epilepsy: preliminary data
    (Universidad de Murcia. Servicio de Publicaciones, 2021) Lozano-García, Alejandro; Catalán, Judit; Hampel, Kevin; Villanueva, Vicente; González-Bono, Esperanza; Cano-López, Irene
    El estrés es un factor de riesgo para las enfermedades cardiovasculares en la población general. La epilepsia se ha considerado un modelo adecuado de estrés crónico, con mayor incidencia de mortalidad cardiovascular que la población general. Este estudio proporciona datos preliminares sobre la respuesta cardiovascular ante un estresor cognitivo y una evaluación neuropsicológica en pacientes con epilepsia, explorando las relaciones entre la respuesta cardiovascular y el rendimiento cognitivo dependiendo del hemisferio responsable de la epilepsia. Treinta y cinco pacientes con epilepsia farmacorresistente, 17 con el área epileptógena(AE) en el hemisferio izquierdo (LH) y 18 con AE en el hemisferio derecho (RH), se sometieron a un estres cognitivo y una evaluación neuropsicológica. La respuesta cardiovascular se registró durante toda la sesión en ambas condiciones. Los resultados mostraron que una evaluación neuropsicológica de larga duración fue capaz de producir una respuesta cardiovascular modulada por el hemisferio, con disminuciones de la frecuencia cardíaca (y aumentos del intervalo RR) más pronunciadas en el período post-evaluación en pacientes con epilepsia del HI que en pacientes con epilepsia del HD (p = .05, p = .01, respectivamente). El hemisferio del AE moderó la relación entre la respuesta cardiovascular y el rendimiento cognitivo (para todos, p < .03). Nuestros hallazgos podrían tener implicaciones clínicas desde una perspectiva preventiva, ya que sugieren que el hemisferio del AE podría ser un factor relevante en el afrontamiento del estrés en personas con epilepsia farmacorresistente.
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    Composición corporal y variabilidad de la frecuencia cardiaca: relaciones con edad, sexo, obesidad y actividad física
    (Murcia, Universidad de Murcia, Editum, 2015) López Sánchez, L; López Sánchez, Guillermo Felipe; Díaz Suárez, Arturo
    La composición corporal (CC) y la variabilidad de la frecuencia cardiaca (VFC) están estrechamente relacionadas con la salud de las personas. Las dos variables han sido estudiadas en numerosas ocasiones por separado, sin embargo, son pocas las investigaciones que han abordado en conjunto las relaciones entre los dos conceptos, ofreciendo en muchos casos, resultados contradictorios. El principal objetivo de este trabajo es realizar una revisión de la literatura científica que trata la relación entre la CC y la VFC desde distintos puntos de vista: en relación a la edad (niños y adolescentes, adultos y mayores), en relación a la obesidad, al sexo y a la cantidad de actividad física realizada. Esta revisión, permite concluir que existe una relación entre la CC y la VFC, de tal forma que una disminuida VFC está asociada a un alto porcentaje de grasa corporal y a un menor porcentaje de masa muscular.
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    Cuantificación de carga interna del entrenamiento en jugadores profesionales de fútbol sala
    (Murcia: Servicio de publicaciones de la Universidad de Murcia, 2020) Huerta López, Guillermo; Juan Meroño, Antonio; Ibáñez Pérez, Ricardo José
    El objetivo era conocer las diferencias existentes de cómo afecta la intensidad del entrenamiento a jugadores profesionales de Fútbol Sala, atendiendo a la posición ocupada en el terreno de juego, y comparar los parámetros de frecuencia cardiaca entre entrenamientos y competición. La investigación se realizó al equipo Plásticos Romero Cartagena F.S., regis-trando las medias de frecuencia cardiaca máxima con pulsómetros y la re-cogida de la Percepción Subjetiva del Esfuerzo, a través de la escala de Borg. Los resultados obtenidos no mostraron diferencias significativas respecto a la carga cuantificada en las tres posiciones, además la carga interna se manifestó de forma más exigente en jugadores que ocupaban la posición de “Ala” y “Pívot”. Los parámetros de frecuencia cardiaca registrados en en-trenamientos se encontraban muy distanciados de los datos de competición recogidos por otros estudios y la percepción subjetiva del esfuerzo se mostró como un método válido para la cuantificación de la carga.
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    Effects of high-intensity interval training on hemoglobin levels and oxygen saturation in healthy males
    (Servicio de Publicaciones. Universidad de Murcia, 2025) Gandasari, Maharani Fatima; Andiana, Olivia; Ramdan, Pelana; Raja Azidin, Raja Mohammed Firhad Raja Azidin; Raharjo, Slamet; Sin departamento asociado
    The aim of the study was to examine the effects of high-intensity interval training (HIIT) with high-intensity continuous training (HICT) on increasing hemoglobin levels and oxygen saturation in healthy men. This study used a quasi-experiment with a pre-test-post-test group design. A total of 40 healthy male adolescents, aged 19-22 years, with a body mass index (BMI) of 20-24 kg/m2 and normal blood pressure, were recruited from university students and given HIIT and HICT intervention programs for 30 minutes. Hemoglobin levels were measured using Mission® Hemoglobin Test Strips, while oxygen saturation (SpO₂) and heart rate (HR) were measured using an Oxyone Pulse Oximeter. The mean pre-HIIT and HICT hemoglobin levels were 16.86 ± 1.39 vs 16.34 ± 1.28 g/dL (p = 0.221), and post-intervention were 18.36 ± 0.96 vs 15.41 ± 1.55 g/dL (p = 0.000). SpO₂ pre-values between HIIT and HICT were 96.75 ± 1.37 vs 96.45 ± 1.36 % (p = 0.491), and post-values were 97.85 ± 1.23 vs 96.15 ± 1.35 % (p = 0.000). HR pre-values between HIIT and HICT were 71.40 ± 7.03 vs 71.20 ± 7.98 bpm (p = 0.933), and post-values were 81.25 ± 11.79 vs 97.05 ± 5.54 bpm (p = 0.000). The study concluded that HIIT was effective in increasing hemoglobin and SpO2 levels as an indicator of cardiorespiratory fitness compared to HICT. Furthermore, HIIT was also found to be more effective at speeding up HR recovery.
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    Mejora de la dureza mental en halteristas universitarios mediante una intervención con biorretroalimentación basada en el modelo IZOF
    (Universidad de Murcia. Servicio de publicaciones, 2023) Fernández Barradas, Erick Yael; Juvera Portilla, José Luis; Rodenas Cuenca, Luis Tomas; Hernández Cruz, Germán; Reynoso Sánchez, Luis Felipe
    La intervención psicológica en el contexto del deporte ha intentado detectar un modelo que pueda predecir el máximo rendimiento deportivo; los estudios en donde se utilizan programas de intervención psicológica en las fases competitivas han mostrado cierta influencia en la mejora de habilidades psicológicas específicas para la práctica deportiva. El presente estudio tuvo como objetivo evaluar el efecto de un programa de control de activación basado enla Zona Individual de Funcionamiento Óptimo (IZOF), sobre los niveles de dureza mental en deportistas universitarios de halterofilia. La muestra constó de tres participantes, seleccionados por conveniencia. Se utilizó un diseño preexperimental de pretest-postest con un grupo único. Se aplicaron el Inventario Psicológico de Ejecución Deportiva y el Inventario de Ansiedad Estado Competitiva-2RD, este último de manera retrospectiva considerando tres momentos deportivos: a) Peor Rendimiento; b)Rendimiento Regular; c) Mejor Rendimiento; y uno de forma prospectiva, d) Post-intervención. Se registro la frecuencia cardiaca como herramienta para determinar la IZOF. El programa de intervención constó de 17 sesiones para la enseñanza y aplicación técnicas de control de activación. Se analizaron las variables psicológicas mediante la prueba T de Wilcoxon y el mínimo cambio apreciable, mientras que se obtuvieron medias para la frecuencia cardiaca para evaluar su comportamiento durante las ejecuciones de rendimiento. Losresultados posteriores a la intervención muestran cambios positivos en los niveles de ansiedad y autoconfianza, así como de las habilidades psicológicas para la práctica deportiva, y, la obtención y mantenimiento de la IZOF en los participantes.
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    Percepción de la intensidad al esfuerzo: Un estudio multi-method en actividad física
    (Murcia: Servicio de Publicaciones de la Universidad de Murcia, 2015) Castañer, Marta; Saüch, Glòria; Camerino, Oleguer; Sánchez-Algarra, Pedro; Anguera Argilaga, María Teresa
    Este estudio aborda un doble objetivo: a) conocer si existe progresión signi+cativa entre tres valores correspondientes al índice de Borg elicitados por jóvenes deportistas con relación a tres actividades de intensidad creciente; b) analizar la relación existente entre el índice de masa corporal (IMC) de los participantes con los valores de frecuencia cardíaca (FC) y la percepción de intensidad del esfuerzo (RPE). Método: Treinta y cinco deportistas jóvenes con una edad media de 18 y 28 años (21±0,5), realizaron 3 actividades que exigían una intensidad creciente de ejercicio: leve, moderada y vigorosa (ACSM, 2011). Se controló la frecuencia cardíaca mediante el dispositivo telemétrico Polar Team 2 y al +nalizar las tres actividades se administró tres veces la escala de Borg para obtener la RPE para cada actividad. Se ha complementado la metodología observacional indirecta (índices de Borg) con la metodología cuasiexperimental para obtener inferencias causales mediante un diseño sincrónico de variable de asignación conocida y grupo único. Se ha realizado un análisis de regresión múltiple, considerando la FC y la RPE como variables predictoras del IMC. Resultados: la RPE es creciente, acorde a las actividades, en todos los participantes, aunque en ningún caso la tendencia es estadísticamente signi+cativa. Prácticamente la cuarta parte del IMC se puede explicar por la FC y la RPE puesto que los participantes que tienen valores más altos de FC y de índice de Borg tienen también mayores valores de IMC. Este estudio puede proporcionar una visión de evaluación integrada entre los factores IMC, FC y la RPE, que suelen investigarse de modo aislado.
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    Role of renin—angiotensin system in the impairment of baroreflex control of heart rate in renal hypertension
    (Lippincott, Williams & Wilkins, 1991-12) Berenguer, Luis M.; García Estañ, Joaquín; Ubeda, Mariano; Ortiz Ruiz, Antonio José; Quesada, Tomás; Dermatología, Estomatología, Radiología y Medicina Física
    Studies of the baroreceptor heart rate reflex were performed in two-kidney, one clip (2K1C) hypertensive rats to evaluate the relative importance of two factors — high blood pressure and high angiotensin II circulating levels — on impairment of the baroreflex, present in the acute phase of this model of hypertension. The sensitivity of baroreceptor reflex was determined by the slope of the relationship between changes in mean arterial pressure (MAP) and changes in heart rate in response to injections of phenylephrine and nitroprusside. Bradycardic and tachycardic responses were analyzed separately. In basal conditions, the slope of the MAP-heart rate relationship in 2K1C hypertensive animals was significantly lower than in control animals, both for tachycardic and bradycardic responses. Lowering of blood pressure with captopril to normotensive levels in the 2K1C animals significantly increased baroreflex gain in bradycardic responses to the level found in normotensive rats. Normalization of blood pressure with nitroprusside did not change baroreflex sensitivity. Infusion of angiotensin II at a dose that did not change MAP, previously normalized with captopril, completely reverted the effect of this agent on baroreflex sensitivity. Our data indicate that, in 2K1C hypertensive rats, decreased baroreflex sensitivity is mediated, at least in part, by high angiotensin II circulating levels. Elevated blood pressure per se is of secondary importance
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    The influence of coping strategies and behavior on the physiological response to social stress in women: the role of age and menstrual cycle phase
    (Elsevier, 2017-03-01) Espín López, Laura; Villada, Carolina; Hidalgo, Vanesa; Rubagotti, Sara; Sgoifo, Andrea; Salvador, Alicia; Anatomía Humana y Psicobiología; Facultades de la UMU::Facultad de Psicología y Logopedia
    There is information indicating that the variations induced by the menstrual cycle may influence the capacity of young women to respond to stress. The physiological response to stress changes across the stages of the lifespan; however, in spite of the great increase in life expectancy, the way women react after menopause, a period char- acterized by a dramatic decline in sex hormones, has not been sufficiently studied. The main objective of the study was to examine the capacity to respond to and recover from an acute social stressor in post-menopausal women compared to young women. The second objective was to investigate the consequences of behavior on the self-regulatory systems. We measured behavior, cortisol, and heart rate during a speaking task in front of a committee in sixty-seven women: 36 post-menopausal and 31 pre-menopausal (follicular group n = 14; luteal group n = 17). No differences in heart rate reactivity between three groups were found. Post-menopausal women showed less cortisol reactivity to stress; they also displayed a higher percentage of Gestures during the speaking task, reflecting a clearer pattern of active coping compared to the young women. In post-menopausal women, behaviors that reflect active coping strategies were related to better autonomic regulation. By contrast, in pre-menopausal women, cortisol changes seemed to be modulated by passive and reactive behaviors such as Submission and Assertion. These results emphasize the importance of considering age and Hormonal Status in coping processes, including reactivity and recovery from stressful situations
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    Using an inertial device (WIMU PRO) to quantify neuromuscular load in running reliability, convergent validity, and influence of type of surface and device location
    (Lippincott, Williams & Wilkins, 2020-02) Gómez Carmona, Carlos David; Bastida Castillo, Alejandro; González-Custodio, Adrián; Olcina, Guillermo; Pino Ortega, José; Actividad Física y Deporte
    Gómez-Carmona, CD, Bastida-Castillo, A, González-Custodio, A, Olcina, G, and Pino-Ortega, J. Using an inertial device (WIMU PRO) to quantify neuromuscular load in running: reliability, convergent validity, and influence of type of surface and device location. J Strength Cond Res 34(2): 365–373, 2020—Currently, the use of accelerometers in sport is increasing, and thus, the devices are required to be valid and reliable. This study tested (a) the reliability and validity of WIMU PRO accelerometers to measure PlayerLoad (PL) and (b) the influence of speed, inertial device location, and type of surface where the incremental test is performed. Twenty resistance-trained men (age: 27.32 ± 6.65 years; height: 1.74 ± 0.03 m; body mass: 68.96 ± 4.37 kg; and body mass index: 22.76 ± 1.11 kg·m−2) volunteered to participate in the study that lasted 5 weeks. Four progressive incremental tests were performed in treadmill and athletic track conditions. External load variable (PL) and physiological variables (heart rate [HR] and SmO2) were recorded by 4 WIMU PRO inertial devices (scapulae, center of mass, knee, and ankle), a GARMIN HR band, and a MOXY near-infrared spectroscopy device, respectively. High reliability was found on both types of surface, showing the best values at the ankle (treadmill: intraclass correlation coefficient [ICC] = 0.99, coefficient of variation [CV] = 4.65%; track: ICC = 0.96, CV = 6.54%). A nearly perfect convergent validity was shown with HRAVG (r = 0.99) and a moderate one with SmO2 (r = −0.69). Significant differences in the PL variable between surfaces were reported in all locations except the scapulae (p = 0.173), and the higher values were found on the track. In the analysis per location, the ankle location reported the highest values at all speeds and on the 2 surfaces analyzed. Assessment needs to be individualized, due to the great variability of gait biomechanics among subjects. The accelerometer location should be chosen according to the purpose of the measurement, with the ankle location being recommended for neuromuscular load analysis in running.