Browsing by Subject "Muscle mass"

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    Body composition, aerobic capacity and heart rate of 10-14 years old soccer players
    (Asociacion Didactica Andalucia, 2020-05-01) Borrego Balsalobre, Francisco José; López Nicolás, José Manuel; López Sánchez, Guillermo Felipe; Díaz Suárez, Arturo; Smith, Lee; Actividad Física y Deporte
    The aim of the present study was to analyse body composition (BC), aerobic capacity (AC) and heart rate (HR) of young footballers. 139 players of Real Murcia F.C. participated, aged 10 to 14 years (average age 11.82 ± 1.32, average height 1.53 ± 0.11 m., average weight 43.89 ± 10.01 kg). The variables measured were BC (Tanita BC 418-MA), AC (Course Navette Test 20m) and HR at rest and after exercise (finger pulse oximeter OXYM2001). Significant differences by age were observed; older players had greater skeletal muscle mass and greater aerobic capacity than younger players. The players analyzed had lower fat mass, higher skeletal muscle mass and higher aerobic capacity than subjects of the same age that did not practice football.
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    Data research: Body composition, aerobic capacity and heart rate of 10-14 years old soccer players.
    (2026-02-24) Borrego Balsalobre, Francisco José; Actividad Física y Deporte
    1.Description of the methodology used to generate the dataset. Se diseñó una hoja de registro en la que se apuntaron los valores obtenidos por cada jugador en cada una de las pruebas. 2. Software or tools needed to interpret the data. [Include the version of the software. If specific software with restricted access is required, explain how to obtain it. Assess whether it is possible to change the dataset to an open format (recommended)]. Los programas informáticos utilizados para el análisis de datos fueron Microsoft Excel y SPSS Statistics 23. 3. Procedures followed for data quality assurance. Se aplicaron técnicas de estadística descriptiva: media y desviación estándar. Además, para analizar las diferencias entre grupos de edad se utilizó ANOVA de un factor o sentido (Análisis de Varianza), con análisis Post-hoc y comparaciones múltiples de la prueba HSD Tukey. En cada uno de los casos, el valor P < 0.05 fue considerado como diferencia significativa. A continuación, se estudiaron los valores medios obtenidos de los jugadores y los correspondientes percentiles, analizando las diferencias en función de la edad de los sujetos. Para el estudio de los percentiles se utilizaron referencias reconocidas internacionalmente: CN (Prat, 1993), MG (McCarthy, Cole, Fry, Jebb y Prentice, 2006), IMC (Cole y Lobstein, 2012), FC (Fleming et al., 2011) y MME (McCarthy, Samani-Radia, Jebb y Prentice, 2014).
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    Pectoralis cross-sectional area can be accurately measured using panoramic ultrasound: a validity and repeatability study
    (2021-11-30) Hernández Belmonte, Alejandro; García Pallarés, Jesús; Martínez Cava, Alejandro; Actividad Física y Deporte
    The objective of the current study was to examine the validity and repeatability of panoramic ultrasound in evaluating the anatomical cross-sectional area (ACSA) of the pectoralis major. Specifically, we aimed to quantify the measurement errors generated during the image acquisition and analysis (repeatability), as well as when comparing with magnetic resonance imaging (MRI) (validity). Moreover, we aimed to analyze the influence of the operator’s experience on these measurement errors. Both sides of the chest of 16 participants (n = 32) were included. Errors made by two operators (trained and novice) when measuring pectoralis major ACSA (50% of sternum areola mammae distance) were examined. Acquisition errors included the comparison of two images acquired 5 min apart. Acquisition 1 was analyzed twice to quantify analysis errors. Thereafter, acquisition 1 was compared with MRI. Statistics include the standard error of measurement (SEM), expressed in absolute (cm2) and relative (%) terms as a coefficient of variation (CV), and the calculation of systematic bias. Errors made by the trained operator were lower than those made by the novice, especially during the image acquisition (SEM = 0.25 vs. 0.66 cm2, CV = 1.06 vs. 2.98%) and when compared with MRI (SEM = 0.27 vs. 1.90 cm2, CV = 1.13 vs. 8.16%). Furthermore, although both operators underestimated the ACSA, magnitude and variability [SD] of these errors were lower for the trained operator (bias = 0.19 [0.34] cm2) than for the novice (bias = 1.97 [2.59] cm2). Panoramic ultrasound is a valid and repeatable technique for measuring pectoralis major ACSA, especially when implemented by a trained operator.