RESUMO
The increasing demand of organic agriculture (OA) is based on the consumer's belief that organic agricultural products are healthier, tastier and more nutritious. The effect of OA and conventional agriculture (CA) methods on the elemental compositions of green and red sweet peppers were studied. The highest concentrations of Ca, Cu, K and P occur in peppers from OA in both states of ripeness, with emphasis on Ca and K contents. Furthermore, the principal component analysis (PCA), points out to a clear separation, regarding concentrations, between peppers from OA and CA. The average fruit weight is higher in OA, 141 g versus 112 g in CA. Regarding productivity, CA reaches a value of 30.1 t/ha, 7% higher than the value observed for OA, i.e., 28 t/ha. Peppers from CA, exhibited greater protein content than those which originated from OA, regardless of the ripening stage, but not more ashes. Regarding nutritional ratios, the ripening stage and the production mode, can be important for an adequate choice regarding a more balanced Ca/P ratio, and the studied variety contained high Ca values ranging between 1009 and 1930 mg.kg-1. The PCA analysis also revealed that Mn and Fe are inversely correlated, confirming the importance of the Mn/Fe ratio evaluation in nutritional studies.
RESUMO
Con el propósito de discutir los efectos del entrenamiento concurrente sobre las características del músculo esquelético mediadas por la plasticidad muscular, así como los aspectos relacionados con la prescripción de este tipo de ejercicio, se realizó una revisión de la literatura sobre el tema. Se utilizaron catorce referencias obtenidas de las bases de datos PubMed, SciELO y Schoolar Google a través de las siguientes palabras clave: "entrenamiento concurrente, ejercicio concurrente, plasticidad muscular, ejercicio f ísico". La plasticidad muscular puede reducir las adaptaciones inducidas por las modalidades que conforman el entrenamiento concurrente. Por lo tanto, al planificar el programa de entrenamiento, es necesario observar estrategias que busquen minimizar este efecto.
In order to discuss the effects of concurrent training on skeletal muscle characteristics mediated by muscle plasticity, as well as aspects related to the prescription of this type of exercise, a review of the literature on the subject was made. Fourteen references obtained f rom the PubMed, SciELO and Schoolar Google databases following the keywords "concurrent training, concurrent exercise, muscular plasticity, physical exercise" were used. Muscle plasticity can reduce the adaptations induced by the modalities that make up concurrent training. Therefore, when planning the training program, it is necessary to observe strategies that seek to minimize this effect.