Composición corporal y rendimiento deportivo en gimnastas de acrobática / Body composition and sports performance in acrobatic gymnasts

RESUMEN: El objetivo de este estudio fue analizar las posibles relaciones entre diferentes aspectos de puntuación del ejercicio en competición y características antropométricas en un grupo de adolescentes de GA de la élite nacional en función de dos categorías diferentes. Estudio descriptivo y de corte transversal. La muestra ha estado compuesta por 39 adolescentes entre 11 y 19 años (14,9±2,39), de las categorías junior y senior. Se aplicó un cuestionario elaborado ad hoc donde se pedían datos sociodemográficos y deportivos, junto a la toma de medidas antropométricas peso, altura, perímetro de cintura y pliegues cutáneos tricipital, bicipital, suprailiaco, supraespinoso y el de la pantorrilla. Se encontraron asociaciones significativas entre el % de GC (suma del pliegue del tríceps y subescapular) con la nota de dificultad del ejercicio de EQ y COMB y de forma más moderada con la nota de dificultad y final del ejercicio DIN. Igualmente, el % de GC con la suma de los dos pliegues tricipital y el de la pantorrilla, demostró una asociación moderada con la nota final del ejercicio DIN y la nota de dificultad del ejercicio de EQ, así como la nota de dificultad del ejercicio DIN. Los portores presentan mayores valores en todas las medidas antropométricas frente a los ágiles; en cuanto al rendimiento, es superior en la categoría senior, obteniendo mejores puntuaciones en todas las variables analizadas y por último, existe asociación negativa entre el % GC y la puntuación en las notas de dificultad de todos los ejercicios, así como en la nota final del ejercicio DIN.

SUMMARY: The aim of this study was to analyse the possible relationships between different aspects of exercise score in competition and anthropometric characteristics in a group of national elite AG adolescents according to two different categories. Descriptive and cross-sectional study. The sample consisted of 39 adolescents aged between 11 and 19 years (14,9±2,39), from the junior and senior categories. An ad hoc questionnaire was administered asking for socio-demographic and sporting data, together with anthropometric measurements of weight, height, waist circumference and tricipital, bicipital, suprailiac, supraspinatus, supraspinatus and calf skinfolds. Significant associations were found between the % BF (sum of triceps and subscapularis skinfold) with the BAL and COMB exercise difficulty score and more moderately with the DYN exercise difficulty and end score. Similarly, the % of BF with the sum of the two tricipital and calf creases showed a moderate association with the final grade of the DYN exercise and the difficulty grade of the BAL exercise, as well as the difficulty grade of the DYN exercise. The bases present higher values in all anthropometric measures compared to the agile; in terms of performance, it is higher in the senior category, obtaining better scores in all the variables analysed and finally, there is a negative association between the % BF and the score in the difficulty grades of all the exercises, as well as in the final grade of the DYN exercise.

A comparative 30-day outcome analysis of inpatient evaluation vs outpatient testing in patients presenting with chest pain in the high-sensitivity troponin era. A propensity score matched case-control retrospective study.

BACKGROUND: The best disposition of chest pain patients who rule out for myocardial infarction (MI) but have non-low clinical risk scores in the high-sensitivity troponin era is not well studied. HYPOTHESIS: In carefully selected patients who rule out for MI, and have a high-sensitivity troponin T ≤ 50 ng/L with an absolute increase less than 5 ng/L on repeat measurements, early emergency room (ER) discharge might be equivalent to inpatient evaluation in regards to 30-day incidence of adverse cardiac events (ACEs) regardless of the clinical risk score. METHODS: A total of 12 847 chest pain patients presenting to our health system ERs from January 2017 to September 2019 were retrospectively investigated. A propensity score matching algorithm was used to account for baseline differences between admitted and discharged cohorts. We then estimated and compared the incidence of 30-day and 1-year composite ACEs (MI, urgent revascularization, or cardiovascular death) between both groups. A multivariate Cox regression model was used to evaluate the effect of admission on outcomes. RESULTS: A total of 2060 patients were matched in 1:1 fashion. The primary endpoint of 30-day composite ACEs occurred in 0.6% and 0.4% of the admission and the discharged cohorts, respectively (P = .76). One-year composite ACEs was also similar between both groups (4% vs 3.7%, P = .75). In a multivariate Cox regression model, the effect of inpatient evaluation was neutral (hazard ratio 1.1, confidence interval 0.62-1.9, P = .75). CONCLUSIONS: Inpatient evaluation was not associated with better outcomes in our selected group of patients. Larger-scale randomized trials are needed to confirm our findings.