Cardiac troponin T release after football 7 in healthy children and adults

The objective of this study was to compare the release of cardiac troponin T (cTnT) after a football 7 match between two cohorts of children and adult players. Thirty-six male football players (children = 24, adult = 12) played a football 7 match, and cTnT was measured before, and 3 h after exercise. Concentrations of cTnT were compared between groups and time, and correlated with participants’ characteristics, as well as internal and external exercise load. Cardiac troponin T was elevated in all participants (p < 0.001), and exceeded the upper reference limit for myocardial infarction in 25 (~70%) of them. Baseline concentrations were higher in adults (p < 0.001), but the elevation of cTnT was comparable between the groups (p = 0.37). Age (p < 0.001), body mass (p = 0.001) and height (p < 0.001), and training experience (p = 0.001) were associated to baseline cTnT values, while distance (p < 0.001), mean speed (p < 0.001), and peak (p = 0.013) and mean (p = 0.016) heart rate were associated to the elevation of cTnT. The present study suggests that a football 7 match evoked elevations of cTnT during the subsequent hours in healthy players regardless of their age. However, adults might present higher resting values of cTnT than children. In addition, results suggest that the exercise-induced elevations of cTnT might be mediated by exercise load but not participant characteristics

Cardiac troponin I release after a basketball match in elite, amateur and junior players

BACKGROUND: Available scientific data related to cardiac troponin I (cTnI) release after intermittent exercise is limited. It is also of interest to determine what personal or environmental factors mediate the exercise-induced release of cTnI. This study had two objectives: 1) to examine the individual release of cTnI to a basketball match; and 2) to establish the influence of athlete status as well as biological age on cTnI release. METHODS: Thirty-six basketball players (12 adult elite [PBA]: 27.3±4.1 years, 12 adult amateur [ABA]: 29.6±2.9 years, and 12 junior elite [JBA]: 16.6±0.9 years) participated in a simulated basketball match with serial assessment of cTnI at rest, immediately post- and at 1, 3, 6, 12, and 24 h post-exercise. RESULTS: The basketball match increased cTnI levels (pre: median [range]; 0.006 [0.001-0.026]; peak post: 0.024 [0.004-0.244] μg/L; p=0.000), with substantial individual variability in peak values. PBA and JBA players showed higher baseline and post-exercise cTnI values than ABA (all p<0.05). Peak cTnI exceeded the upper reference limit (URL) in the 26% of players (3 PBA; 6 JBA). CONCLUSIONS: The current results suggest that intermittent exercise can promote the appearance of cTnI and that this is potentially mediated by athlete status

Influence of maturational status in the exercise-induced release of cardiac troponin T in healthy young swimmers.

OBJECTIVES: To determine the influence of maturational status on the release of cardiac troponin T (cTnT) induced by a bout of 30min, high-intensity, continuous exercise. DESIGN: Quasi-experimental, cross-sectional study. METHODS: Seventy male, young, well trained swimmers (age range 7-18 years, training experience 1-11 years) were classified by maturational stages: Tanner stage I (n=14), II (n=15), III (n=15), IV (n=13), and V (n=13). Participants underwent a distance-trial of 30min continuous swimming, and cTnT was measured before, immediately after and 3h after exercise. Changes in cTnT over time were compared among groups, and associated with exercise load. RESULTS: Basal cTnT was higher in Tanner-V (3.8-8.1ng/L) compared with I (1.5-5.5ng/L, p<0.001), II (1.5-4.5ng/L, p<0.001) and III (1.5-6.8ng/L, p=0.003), and in IV (1.5-6.3ng/L) compared with II (p=0.036). Maximal elevations of cTnT from baseline were notable (p<0.001) and comparable among maturational stages (p=0.078). The upper reference limit for myocardial injury was exceeded in 35.7% of the participants, without differences among groups (p=0.18). Baseline cTnT correlated with participant characteristics, and maximal cTnT elevations from baseline with exercise internal load (%HRpeak, rs=0.34, p= 0.003; %HRmean, rs=0.28, p=0.02). CONCLUSIONS: Maturational status influences positively absolute pre- and post-exercise cTnT but not its elevation after a bout of 30min, high-intensity, continuous exercise

Adherencia a la dieta mediterránea en adultos inactivos, practicantes de ciclo indoor y ciclistas aficionados

Introducción: existe información limitada sobre la relación entre la adherencia a la dieta mediterránea (ADM) y la práctica deportiva. Objetivo: determinar la posible asociación de la práctica deportiva y el volumen de entrenamiento en bicicleta con la ADM y la influencia de la proximidad de una prueba ciclodeportiva sobre la ADM. Material y métodos: una primera evaluación de la ADM en 785 (84 mujeres) ciclistas aficionados (volumen = 7 horas/semana), 514 (224 mujeres) practicantes de ciclo indoor (volumen: 2-6 horas/semana) y 718 (411 mujeres) adultos inactivos fue desarrollada en mayo, coincidiendo con la participación de los ciclistas en una prueba ciclodeportiva. Una submuestra de 359 ciclistas y 148 inactivos fueron evaluados nuevamente en noviembre, en fecha alejada de la prueba ciclodeportiva. Se utilizó el cuestionario MEDAS-14 para valorar la ADM y un cuestionario autodiseñado para evaluar el volumen de entrenamiento. Resultados: un 40% de los sujetos evidenció alta ADM. En ambos sexos, los deportistas mostraron mayor ADM que los inactivos, con los mejores índices para los grupos de ciclistas (p < 0, 001). La relación entre la ADM y el volumen de entrenamiento fue débil (hombres: r = 0, 137, mujeres: r = 0, 173; p < 0, 001). La ADM de los ciclistas disminuyó de mayo a noviembre (p < 0, 001) sin cambios en los sujetos inactivos (p = 0, 535). Conclusiones: la práctica deportiva en bicicleta se asocia con una mayor ADM con limitada influencia del volumen de entrenamiento y con efectos positivos transitorios de la participación en una prueba ciclodeportiva. Introduction: There is limited information referred to the relationship between adherence to the Mediterranean Diet (AMD) and sports practice. Objective: To determinate the association of cycling practice and cycling training volume with the AMD and the influence of the participation in a high-demand cyclist event on the AMD. Material and methods: A first evaluation of AMD in 785 (84 women) amateur cyclists (volume: = 7 hours/week), 514 (224 women) indoor cycling practitioners (volume: 2-6 hours/week) and 718 (411 women) inactive adults was conducted in May coinciding with the participation of cyclists in a cycling event. A subsample of 359 cyclists and 148 inactive subjects agreed to be retested in November, far from the cycling event date. The MEDAS-14 questionnaire was used to assess the AMD and a self-designed questionnaire was used to assess the volume of training. Results: 40% of subjects showed high AMD. In both sexes, athletes showed higher AMD than inactive subjects, with the highest indexes for groups of cyclists (p < 0.001). The relationship between AMD and training volume was weak (men: r = 0.137, women: r = 0.173; p < 0.001). The AMD of cyclists decreased from May to November (p < 0.001) with no significant changes in inactive subjects (p = 0.535). Conclusions: Cycling is associated to higher values of AMD with a limited influence of training volume and transient positive effects of participation in a cycling endurance event

Scientific production of the professors of physical education and sport in Catalonia (2005-2009 versus 2010-2014)

El objetivo es conocer la evolución de la producción científica de los profesores del área de Educación Física y Deortiva (EFyD) catalanes durante el quinquenio 2010-2014 y compararla con la del quinquenio anterior, analizandolo por medio de artículos en revistas en la base de datos WoS. La muestra la forman 423 profesores.Durante el quinquenio 2010-2014 se publicaron 344 documentos (68,8 ± 24 documentos por año), un 170% más que en el quinquenio 2005-2009 (127 documentos, 25,4 ± 33 documentos). Durante el quinquenio 2010-2014, se observó un incremento significativo en la producción total de documentos (p<0.05), con un crecimiento medio anual del 34%. Las correlaciones entre el Indice h y nº de citas es positiva en ambos quinquenios (0.93 y 0.89). La producción científica de los profesores de EFyD creció a buen ritmo durante el quinquenio 2010-2014 en cantidad, pero el FI de las revistas en las que publicaron descendió.ABSTRACT: This work is a descriptive, comparative and correlational study of document analysis. The goal is to understand the evolution of scientific production of the professors of Physical Education and Sports (EF&D) Catalans during the 2010-2014 five-year period and compare it with the previous five years, analyzing it through journal articles in the database WoS. The sample involved 423 teachers. During the five years 2010-2014, were published 344 documents (68.8 ± 24 documents by year), 170% more than in 2005-2009 (127 documents, 25.4 ± 33 documents). During the five years 2010-2014, a significant increase was observed in the total production of documents (p<0.05), with an average annual growth of 34%. The correlations between the numbers of citations index h is positive in both five-year periods (0.93 and 0.89). The scientific production of (EF&D) teachers increased apace in quantity during the 2010-2014, but the IF of the journals in which they published descended

Producción científica de los profesores del área de Educación Física y deportiva en Cataluña (quinquenio 2005-2009 versus 2010-2014)

This work is a descriptive, comparative and correlational study of document analysis. The goal is to understand the evolution of scientific production of the professors of Physical Education and Sports (EF&amp;D) Catalans during the 2010-2014 five-year period and compare it with the previous five years, analyzing it through journal articles in the database WoS. The sample involved 423 teachers. During the five years 2010-2014, were published 344 documents (68.8 ± 24 documents by year), 170% more than in 2005-2009 (127 documents, 25.4 ± 33 documents). During the five years 2010-2014, a significant increase was observed in the total production of documents (p&lt;0.05), with an average annual growth of 34%. The correlations between the numbers of citations index h is positive in both five-year periods (0.93 and 0.89). The scientific production of (EF&amp;D) teachers increased apace in quantity during the 2010-2014, but the IF of the journals in which they published descended.El objetivo es conocer la evolución de la producción científica de los profesores del área de Educación Física y Deortiva (EFyD) catalanes durante el quinquenio 2010-2014 y compararla con la del quinquenio anterior, analizandolo por medio de artículos en revistas en la base de datos WoS. La muestra la forman 423 profesores.Durante el quinquenio 2010-2014 se publicaron 344 documentos (68,8 ± 24 documentos por año), un 170% más que en el quinquenio 2005-2009 (127 documentos, 25,4 ± 33 documentos). Durante el quinquenio 2010-2014, se observó un incremento significativo en la producción total de documentos (p&lt;0.05), con un crecimiento medio anual del 34%. Las correlaciones entre el Índice h y nº de citas es positiva en ambos quinquenios (0.93 y 0.89). La producción científica de los profesores de EFyD creció a buen ritmo durante el quinquenio 2010-2014 en cantidad, pero el FI de las revistas en las que publicaron descendió