Ciências do desporto

The GH receptor antagonist pegvisomant is an efficient agent to achieve biochemical control of acromegaly in those cases refractory to surgery and medical therapy with somatostatin analogs. We conducted an observational multicenter study consisting of data collection in accordance with the standard management of patients with acromegaly in everyday practice. We reviewed the medical records of 28 patients, 23 females, who were treated with pegvisomant due to the lack of biochemical response or intolerance to the somatostatin analogs. The objective was to monitor long-term safety and efficacy of the antagonist. 82% of the patients had previous pituitary surgery, 53.6% radiotherapy and 96.4% received medical therapy for acromegaly. Only 19.2% of the patients had pituitary residual tumor size larger than 1 cm, the remainder harbored a microadenoma or no visible tumor in the pituitary images. In terms of biochemical efficacy, IGF-I levels decreased to normal ranges in 45% and 58.8% of patients after 3 and 6 months of treatment, respectively, the daily mean dose of pegvisomant being 9.6+/-1.1 mg. Adverse events, potentially related to pegvisomant were reported in 6 patients (21.4%), local injection site reaction and elevated liver enzymes being the most frequent. Tumor size did not show enlargement in the evaluated population (15 patients) during the period of the study. This paper presents preliminary data from a small observational study in Argentina which represents the first database in our country.

The aim of the present study was to examine the reliability of tethered swimming in the evaluation of age group swimmers. The sample was composed of 8 male national level swimmers with at least 4 years of experience in competitive swimming. Each swimmer performed two 30 second maximal intensity tethered swimming tests, on separate days. Individual force-time curves were registered to assess maximum force, mean force and the mean impulse of force. Both consistency and reliability were very strong, with Cronbach's Alpha values ranging from 0.970 to 0.995. All the applied metrics presented a very high agreement between tests, with the mean impulse of force presenting the highest. These results indicate that tethered swimming can be used to evaluate age group swimmers. Furthermore, better comprehension of the swimmers ability to effectively exert force in the water can be obtained using the impulse of force.

Resumo: Nos últimos anos o número de pessoas que aderem ao estilo de vida fitness não para de crescer. Neste texto procede-se a uma análise da ideologia e das práticas alimentares a ele associadas, contribuindo para uma etnografia centrada nas relações entre corpo, cultura, saúde e moralidade. Palavras-chave: alimentação; fitness; saúde. Resumen: El número de personas que se identifican con un estilo de vida fitness parece no dejar de crecer en los últimos años. En este texto se aborda el análisis de la ideología y parte de las prácticas alimentarias, en una etnografía que presta atención a las relaciones que se establecen entre cuerpo, cultura, salud y moralidad. Palabras clave: Alimentación; fitness; salud. INTRODUCCIÓN Luis Mendo firmaba hace poco un artículo 2 en el diario El País, bajo el título "Las dos Españas: los que van al gimnasio y los que prefieren el bar". En el mismo defendía la idea de que los gimnasios estaban ganado parte del espacio tradicional de socialización ocupado hasta ahora por los bares. Comenzaba esa pieza de esta manera: En España hay 4.500 gimnasios y 100.000 bares. Hace unos años difícil-mente un tabernero habría temido por la apertura de un nuevo gimnasio en el barrio. Pero con la fiebre por el deporte muchos han cambiado la barra del bar por la barra del press de banca. Estos centros deportivos 1 Universidad de Extremadura.