RESUMEN
SYPRENE, a new international Systemic Practice Research Network (PRN), has been established to fill the gap in practice-based research on the effectiveness and efficiency of strategic therapies. This article presents the rationale for the creation of SYPRENE and describes data collection methods, and the encoding system implemented within this PRN. More developments are expected in the recruitment of practitioners, the types of data collected, findings, and the implementation of SYPRENE in supervision, trainings, and professional schools.
SYPRENE, una nueva red internacional sistémica de investigación basada en la práctica (PRN), se ha establecido para llenar vacíos en la investigación basada en la práctica sobre la eficacia y la eficiencia de las terapias estratégicas. Este artículo presenta las razones de la creación de SYPRENE y describe los métodos de recopilación de datos y el sistema de codificación implementado dentro de esta red de investigación basada en la práctica. Se esperan más novedades en la contratación de profesionales, los tipos de datos recogidos, los hallazgos y la implementación de SYPRENE en supervisión, capacitaciones y escuelas profesionales.
Asunto(s)
Investigación sobre Servicios de Salud/organización & administración , Agencias Internacionales/organización & administración , Servicios de Salud Mental/organización & administración , Psicoterapia/organización & administración , HumanosRESUMEN
This study compared EMG activity of young tennis players' muscles during forehand drives in two groups, GD-those able to raise by more than 150% the vertical velocity of racket-face at impact from flat to topspin forehand drives, and GND, those not able to increase their vertical velocity to the same extent. Upper limb joint angles, racket-face velocities, and average EMGrms values, were studied. At similar joint angles, a fall in horizontal velocity and a rise in racket-face vertical velocity from flat to topspin forehand drives were observed. Shoulder muscle activity rose from flat to topspin forehand drives in GND, but not for drives in GD. Forearm muscle activity reduced from flat to topspin forehand drives in GD, but muscle activation was similar in GND. The results show that radial deviation increased racket-face vertical velocity more at impact from the flat to topspin forehand drives than shoulder abduction.
Asunto(s)
Contracción Muscular/fisiología , Músculo Esquelético/fisiología , Tenis/fisiología , Extremidad Superior/fisiología , Adolescente , Electromiografía , Femenino , Humanos , Masculino , Tórax/fisiologíaRESUMEN
This study aimed at demonstrating the asymmetry in volume between the dominant and nondominant upper limbs in tennis players, controlled for maturity status. Upper limb volumes on both sides were calculated in 72 tennis players and 84 control subjects, using the truncated cone method. The participants' maturity status was determined using the predicted age at peak height velocity (PHV). The results showed significant larger side-to-side asymmetry in volume in tennis groups than in control groups. These findings suggested that, even before PHV, specific-sport adaptations occurred in the dominant upper limb in tennis players.
Asunto(s)
Adaptación Fisiológica , Tamaño Corporal/fisiología , Tenis/fisiología , Extremidad Superior/anatomía & histología , Adolescente , Antropometría , Niño , Femenino , Humanos , Masculino , Extremidad Superior/fisiologíaRESUMEN
Potential differences were assessed between the dominant (D) and non-dominant (ND) forearms of sedentary subjects during anaerobic exercise. Subjects performed voluntary concentric contractions of D and ND forearm muscle during a series of three high-intensity (60% of the maximal voluntary contraction force (MVC)) exercise bouts. The time-dependent changes in intracellular pH (pH(i)), Pi, and PCr concentrations, and their relation to muscular work were examined using 31P magnetic resonance spectroscopy (MRS) techniques, and revealed that D forearm metabolic kinetics in sedentary individuals are improved during repetitive high-intensity exercise compared to their respective ND forearm muscle. We postulate that the more regular and preferential utilization of the D limb leads to a "trained-like" condition.