Explore the vast range of titles available.

This study aimed to assess the acute cardiac autonomic responses to high and low intensity resistance training and their association with post exercise hypotension in adults with pharmacologically treated hypertension. This randomized clinical trial included 31 participants with pharmacologically treated hypertension. The effects of two resistance training sessions performed at high intensity (80% of 1RM) and low intensity (40% of 1RM), matched for total training volume, were compared. Blood pressure and heart rate variability were measured before and after exercise. Significance level was set at 5%. No significant interaction was observed for any of the variables (p > 0.05). Both intensities produced significant reductions in blood pressure and in cardiac parasympathetic indices. During the high intensity session, ΔV1% heart rate variability index was positively correlated with blood pressure reductions. During the low intensity session, low frequency was negatively correlated with blood pressure. In conclusion, both high and low intensity RT elicited acute hypotensive effects, with a more pronounced cardiac autonomic response characterized by greater vagal withdrawal observed for the low intensity training protocol. Furthermore, changes in indices related to cardiac sympathetic modulation and greater decreases in cardiac parasympathetic modulation were associated with a greater post exercise hypotensive response.

Objective: This study aimed to determine the acute effects of specific exercises, commonly used in resistance training programs, performed at two intensities (low and high) with equal volume, on blood pressure in individuals with pharmacologically controlled hypertension. Methods: A crossover clinical trial was conducted with 26 participants with hypertension, each completing two resistance training sessions, one low-intensity and one high-intensity, including squats, rows, deadlifts, and bench presses. The exercise intensity for the first session was randomly assigned, and blood pressure was measured using an automated device before and immediately after each exercise. Comparisons between baseline and post-exercise values were analyzed, with a significance level set at 5%. Results: The results showed that systolic blood pressure (SBP) increased during squats, rows, and deadlifts compared to baseline, with the deadlift producing the highest values. For diastolic blood pressure (DBP), no significant differences were observed from baseline, but the squat and deadlift elicited higher values than the rows and bench press. Additionally, high-intensity training resulted in lower DBP values compared to the low-intensity protocol. Conclusion: Resistance exercise increases SBP regardless of intensity, with the squat and deadlift producing the most significant changes, while high-intensity training leads to lower DBP values than low-intensity protocols in the studied participants.

The aim of this study was to analyze the body composition and physical fitness of a population of students with Down syndrome at two time points (in 2009 and 2019) and different subject groups. It is a trend study that examines the relationship between body composition, physical fitness, and age in a population divided into two groups based on a 10-year interval between evaluations. The results indicate a positive correlation of hip circumference in both groups of women, albeit weaker in 2019 compared to 2009. Men show weaker relationships in 2019 compared to 2009. Physical fitness in women exhibits a somewhat unpredictable trend, with maximum VO2 showing a negative relationship only in 2019, unlike dynamometry, where the positive relationship is observed only in the 2009 group. Men show that flexibility and abdominal capacity have positive relationships in the 2009 group, contrasting with maximum VO2 where the negative relationship is present in 2019. In conclusion, body composition exhibits somewhat unpredictable behavior over time, while physical fitness shows a more homogeneous trend.

Introducción: La construcción de la identidad docente constituye un proceso central en la formación inicial del profesorado, especialmente en los primeros años. En este contexto, las experiencias que vinculan el aprendizaje académico con contextos educativos reales pueden contribuir a su desarrollo.. Objetivo: Evaluar el desarrollo de la identidad docente en estudiantes de primer año de la carrera de Pedagogía en Educación Física a partir de su participación en un programa de Aprendizaje-Servicio (A+S) desarrollado en jardines infantiles.Metodología: Estudio cuantitativo con diseño pretest–postest. Participaron estudiantes de plan regular y de prosecución de estudios. La identidad docente se evaluó mediante un cuestionario que aborda motivación hacia la enseñanza, autoimagen profesional, autoeficacia percibida y percepción de la tarea docente. Se aplicaron estadísticos descriptivos, ANOVA de medidas repetidas y correlaciones de Pearson.. Resultados: Se observaron incrementos significativos entre pretest y postest en todas las dimensiones, sin diferencias entre grupos. Además, se identificaron correlaciones negativas entre puntajes iniciales y cambios, indicando mayores mejoras en quienes presentaban niveles iniciales más bajos.Discusión: Estos resultados son consistentes con investigaciones que destacan el impacto del Aprendizaje-Servicio en el fortalecimiento de la identidad docente, particularmente en dimensiones como la autoeficacia y motivación. Asimismo, la mejora observada coincide con estudios que evidencian que las experiencias prácticas tempranas favorecen procesos identitarios situados.. Conclusiones: La participación en experiencias de Aprendizaje-Servicio puede favorecer el desarrollo de la identidad docente durante las etapas iniciales de la formación universitaria en estudiantes de Pedagogía en Educación Física.

The aim of this study was to analyze the body composition and physical fitness of a population of students with Down syndrome at two time points (in 2009 and 2019) and different subject groups. It is a trend study that examines the relationship between body composition, physical fitness, and age in a population divided into two groups based on a 10-year interval between evaluations. The results indicate a positive correlation of hip circumference in both groups of women, albeit weaker in 2019 compared to 2009. Men show weaker relationships in 2019 compared to 2009. Physical fitness in women exhibits a somewhat unpredictable trend, with maximum VO2 showing a negative relationship only in 2019, unlike dynamometry, where the positive relationship is observed only in the 2009 group. Men show that flexibility and abdominal capacity have positive relationships in the 2009 group, contrasting with maximum VO2 where the negative relationship is present in 2019. In conclusion, body composition exhibits somewhat unpredictable behavior over time, while physical fitness shows a more homogeneous trend.

The objective of the study is to analyze the changes in the relationship between body composition, physical condition, and age over a period of 10 years in a population with Down syndrome. It is a trend research, which relates body composition, physical condition and age in a population divided in two groups differentiated by 10 years from when they had been evaluated. The results refer to the positive correlation of the hip perimeter in both groups of women, a lower relationship is seen in the year 2019 with respect to 2009. Men show lower relationships in 2019 in contrast to 2009. Physical fitness in women has a little predictable trend, Vo2 max has a negative relationship only in 2019, unlike dynamometry, where the positive relationship is seen only in the 2009 group. Men show that flexibility and abdominal capacity have positive relationships in the 2009 group. The opposite case with Vo2 max where the negative relationship is present in 2019. In conclusion the body composition exhibits a little predictable behavior over time, on the other hand the physical condition has a homogeneous trend. El objetivo de estudio es analizar los cambios de las relaciones de la composición corporal, condición física y edad en un periodo de 10 años de una población con síndrome de Down. Es una investigación de tendencia, que relaciona la composición corporal, condición física y edad en una población dividida en dos grupos diferenciados por 10 años de cuando habían sido evaluados. Los resultados hacen referencia a la correlación positiva del perímetro de cadera en ambos grupos de mujeres, se ve menor relación en el año 2019 con respecto al 2009. Los hombres muestran relaciones menores en el 2019 en contraste con el 2009. La condición física en las mujeres tiene una tendencia poco predecible, el Vo2 máximo tiene una relación negativa solo en el año 2019, a diferencia de la dinamometría, donde la relación positiva se observa únicamente en el grupo de 2009. Los hombres muestran que la flexibilidad y la capacidad abdominal tienen relaciones positivas en el grupo 2009. Caso contrario con el Vo2 máximo donde la relación negativa está presente en el 2019. En conclusión la composición corporal exhibe un comportamiento poco predecible a lo largo del tiempo, en cambio la condición física tiene una tendencia homogénea.

Introduction: Heart rate variability (HRV) reflects autonomic modulation and is associated with physical fitness, particularly in aerobic endurance disciplines. However, the relationship between HRV and performance in aerobic capacity tests, such as the Yo-Yo test, has not been fully explored in university athletes. Objective: To analyze the relationship between resting HRV parameters and performance in the Yo-Yo test among university athletes. Methodologic: A cross-sectional correlational study was conducted with 32 male athletes (aged 18–26 years). HRV was assessed in supine and standing positions using time-domain and frequency-domain analyses (SDNN, RMSSD, pNN50%, HF, LF, VLF, and the LF/HF ratio). Subsequently, the maximum velocity reached in the Yo-Yo Intermittent Recovery Test Level 2 (YIRT2) was recorded. Pearson’s correlation test (p < .05) was used to examine the relationships. Results: A moderate positive correlation was observed between the final velocity in the Yo-Yo test and the resting parameters SDNN (r = 0.42; p = .02), HF (r = 0.4; p = .03), and pNN50%. Additionally, a negative correlation was found between the postural change-induced variation in pNN50% and performance (r = -0.46; p = .01). Conclusions: HRV parameters associated with parasympathetic activity show a significant relationship with performance in the Yo-Yo test among university athletes. These findings suggest that HRV could be a useful tool for predicting aerobic capacity and optimizing training planning. Introduction: Heart rate variability (HRV) reflects autonomic modulation and is associated with physical fitness, particularly in aerobic endurance disciplines. However, the relationship between HRV and performance in aerobic capacity tests, such as the Yo-Yo test, has not been fully explored in university athletes. Objective: To analyze the relationship between resting HRV parameters and performance in the Yo-Yo test among university athletes. Methodologic: A cross-sectional correlational study was conducted with 30 male athletes (aged 18–26 years). HRV was assessed in supine and standing positions using time-domain and frequency-domain analyses (SDNN, RMSSD, pNN50%, HF, LF, VLF, and the LF/HF ratio). Subsequently, the maximum velocity reached in the Yo-Yo Intermittent Recovery Test Level 2 (YIRT2) was recorded. Pearson’s correlation test (p<0.05) was used to examine the relationships. Results: A moderate positive correlation was observed between the final velocity in the Yo-Yo test and the resting parameters SDNN (r=0.42; p=0.02), HF (r=0.4; p=0.03), and pNN50%. Additionally, a negative correlation was found between the postural change-induced variation in pNN50% and performance (r=-0.46; p=0.01). Conclusions: HRV parameters, particularly those associated with parasympathetic activity, show a significant relationship with aerobic performance capacity in university athletes. These findings suggest that HRV could serve as a useful tool for projecting aerobic capacity and optimizing training planning. Introdução: A variabilidade da frequência cardíaca (VFC) reflete a modulação autonómica e está associada à aptidão física, particularmente nas modalidades de resistência aeróbia. No entanto, a relação entre a VFC e o desempenho em testes de capacidade aeróbia, como o teste Yo-Yo, não foi totalmente explorada em atletas universitários. Objectivo: Analisar a relação entre os parâmetros da VFC em repouso e o desempenho no teste Yo-Yo em atletas universitários. Metodologia: Foi realizado um estudo transversal correlacional com 30 atletas do sexo masculino (com idades compreendidas entre os 18 e os 26 anos). A VFC foi avaliada nas posições de decúbito dorsal e ortostática através de análises no domínio do tempo e da frequência (SDNN, RMSSD, pNN50%, HF, LF, VLF e a relação LF/HF). Posteriormente, foi registada a velocidade máxima atingida no Teste de Recuperação Intermitente Yo-Yo Nível 2 (YIRT2). O teste de correlação de Pearson (p<0,05) foi utilizado para examinar as relações. Resultados: Observou-se uma correlação positiva moderada entre a velocidade final no teste Yo-Yo e os parâmetros de repouso SDNN (r=0,42; p=0,02), HF (r=0,4; p=0,03) e pNN50%. Além disso, foi encontrada uma correlação negativa entre a variação do pNN50% induzida pela mudança postural e o desempenho (r=-0,46; p=0,01). Conclusões: Os parâmetros da VFC, particularmente os associados à atividade parassimpática, apresentam uma relação significativa com a capacidade aeróbia em atletas universitários. Estes achados sugerem que a VFC pode servir como uma ferramenta útil para projetar a capacidade aeróbica e otimizar o planeamento do treino.

Introducción:La variabilidad de la frecuencia cardíaca (VFC) refleja la modulación autonómica y se relaciona con la condición física, especialmente en disciplinas de resistencia aeróbica. Sin embargo, la relación entre la VFCy el desempeño en pruebas de capacidad aeróbica, como el Yo-Yo test, no ha sido completamente explorada en deportistas universitarios.Objetivo:Analizar la relación entre los parámetros de la VFCen reposo y el rendimiento alcan-zado en la prueba de Yo-Yoen deportistas universitarios.Metodología:Estudio correlacional transversal realizado con 32 hombres deportistas (18−26 años). Se evaluó la VFCen posiciones supina y ortostática mediante análisis en dominios tem-poral y frecuencial (SDNN, RMSSD, pNN50%, HF, LF, VLF y relación LF/HF). Posteriormente, se midió la velocidad alcanzada en el Yo-Yo de recuperación intermitente nivel 2. Se utilizó la prueba de correlación de Pearson (p< .05) para analizar las relaciones.Resultados:Se observó una correlación positiva moderada entre la velocidad final del Yo-Yo testy los parámetros de SDNN (r= .42; p = .02), HF (r= .4; p= .03) y pNN50% en reposo. Además, se evidenció una correlación negativa entre la variación de pNN50% inducida por el cambio postural y el rendimiento (r= −.46; p= .01).. Conclusiones: Los parámetros de la VFCasociados a la actividad parasimpática tienen una re-lación significativa con la en el rendimiento en la prueba de Yo-Yo en deportistas universitarios. Estos hallazgos sugieren que la VFCpodría ser una herramienta útil para proyectar la capacidad aeróbica y optimizar la planificación del entrenamiento.