Regulación emocional y recuperación física de los jóvenes deportistas en modalidades deportivas individual y colectiva

Indexación: Scopus.Due to the influence of positive and negative affects experienced during competition on sports performance, emotional regulation is one of the psychological variables that are more interesting to the sport psychology field. In this sense, this study analyzes how the use of reappraisal and suppression stimulates or hampers the physical recovery of young athletes. All of this taking into account the mediating role of self-efficacy and cognitive anxiety experienced during competition. Three hundred Chilean athletes with ages from 11 to 18 years old participated in this study (M = 15.15; SD = 2.38). Specifically, 139 of them practiced individual sports (boating, athletics, swimming, rhythmic gymnastics, and tennis) and 161 collective sports (basketball, volleyball, soccer, and rugby). Results show that the use of cognitive reappraisal as a dispositional strategy is associated with positive affect. In addition, cognitive reappraisal promotes self-efficacy in athletes during competition and stimulates their physical recovery. Emotional suppression produces the opposite effect, being associated to negative affect and impairing physical recovery by cognitive anxiety. Results are also discussed related to differences observed in the use of these two emotional regulation strategies in individual and collective sports, along with their practice implications for the training of young athletes in both modalities. © 2018 Revista Internacional de Ciencias del Deporte. All rights reserved.La influencia que los estados emocionales tienen en los deportistas cuando compiten ha hecho que la regulación emocional sea una de las variables psicológicas más interesantes a estudiar en los últimos años en el ámbito deportivo. En este sentido, este estudio analiza cómo los usos de las dos estrategias de regulación más usadas de forma disposicional favorecen o disminuyen la recuperación física de los deportistas jóvenes después de la competición. Todo ello teniendo en cuenta el papel mediador que la autoeficacia y la ansiedad cognitiva tienen en esa relación. Para este estudio se contó con la participación de 300 deportistas chilenos de 11 a 18 años (M = 15,15; DT = 2,38). En concreto, 139 practicaban deportes individuales (canotaje, atletismo, natación, gimnasia rítmica y tenis) y 161 deportes colectivos (básquetbol, voleibol, fútbol y rugby). Los resultados del estudio muestran que el uso de la reevaluación cognitiva como estrategia disposicional favorece la autoeficacia de los deportistas en competición y mejora la recuperación física. La supresión emocional, en cambio, se muestra como una estrategia desadaptativa que favorece la ansiedad cognitiva en competición y dificulta la recuperación física. Se discuten también los resultados respecto a las diferencias observadas en el uso de estas dos estrategias de regulación en deportes individuales y colectivos, y su implicación práctica en la preparación de los deportistas jóvenes en ambas modalidades deportivas.https://www.scopus.com/redirect/linking.uri?targetURL=https%3a%2f%2fdoi.org%2f10.5232%2fricyde2018.05301&locationID=1&categoryID=4&eid=2-s2.0-85049895193&issn=18853137&linkType=ViewAtPublisher&year=2018&origin=recordpage&dig=40092fbd145b817ecfc2d14738ebee92&recordRank

Editorial: Insect physiological changes during insect-plant interaction

The interactions between phytophagous insects and their host plants result from a long and continuous evolutionary process (Beran and Petschenka, 2022). Such ecological relationships led to an extraordinary diversity of insects and shaped their complex physiological systems (Wheat et al., 2007). The impacts of host plants on the physiology of herbivorous insects have increasingly become a paramount focus that should not be ignored. Chemical compounds’ composition of plants have not only significant variations in the inter/intra species aspect but also show spatiotemporal variations in different developmental stages and tissue types, or under changeable environments in nature, which lead to the resource assimilation and fitness challenges of insects (Delucia et al., 2012; Brütting et al., 2017). These close interations with plants affect the ecological plasticity of the performance of insect herbivores (Barker et al., 2019). Currently, in-depth exploration of the host plants’ effect on insects has become a research hotspot of insect physiology, however to test the highly complex hypothesis can be difficult. The current Research Topic aimed to highlight the recent developments on 1) how physiological changes occurred in herbivores during their interaction with host plants, 2) how these physiological changes in insects could be affected by other biotic factors

Non-relativistic Extended Gravity and its applications across different astrophysical scales

Using dimensional analysis techniques we present an extension of Newton's gravitational theory built under the assumption that Milgrom's acceleration constant is a fundamental quantity of nature. The gravitational force converges to Newton's gravity and to a MOND-like description in two different mass and length regimes. It is shown that a modification on the force sector (and not in the dynamical one as MOND does) is more convenient and can reproduce and predict different phenomena usually ascribed to dark matter at the non-relativistic level.Comment: 4 pages, 2 figures. To appear in the proceedings of the 2011 Spanish Relativity Meeting (ERE2011) held in Madrid, Spai

The connection between entropy and the absorption spectra of Schwarzschild black holes for light and massless scalar fields

We present heuristic arguments suggesting that if EM waves with wavelengths somewhat larger than the Schwarzschild radius of a black hole were fully absorbed by it, the second law of thermodynamics would be violated, under the Bekenstein interpretation of the area of a black hole as a measure of its entropy. Thus, entropy considerations make the well known fact that large wavelengths are only marginally absorbed by black holes, a natural consequence of thermodynamics. We also study numerically the ingoing radial propagation of a scalar field wave in a Schwarzschild metric, relaxing the standard assumption which leads to the eikonal equation, that the wave has zero spatial extent. We find that if these waves have wavelengths larger that the Schwarzschild radius, they are very substantially reflected, fully to numerical accuracy. Interestingly, this critical wavelength approximately coincides with the one derived from entropy considerations of the EM field, and is consistent with well known limit results of scattering in the Schwarzschild metric. The propagation speed is also calculated and seen to differ from the value $c$, for wavelengths larger than $R_{s}$, in the vicinity of $R_{s}$. As in all classical wave phenomena, whenever the wavelength is larger or comparable to the physical size of elements in the system, in this case changes in the metric, the zero extent 'particle' description fails, and the wave nature becomes apparent.Comment: 14 Pages, 4 figures. Accepted for publication in the Journal Entrop

A cosmological dust model with extended f(chi) gravity

Introducing a fundamental constant of nature with dimensions of acceleration into the theory of gravity makes it possible to extend gravity in a very consistent manner. At the non-relativistic level a MOND-like theory with a modification in the force sector is obtained, which is the limit of a very general metric relativistic theory of gravity. Since the mass and length scales involved in the dynamics of the whole universe require small accelerations of the order of Milgrom's acceleration constant a_0, it turns out that the relativistic theory of gravity can be used to explain the expansion of the universe. In this work it is explained how to use that relativistic theory of gravity in such a way that the overall large-scale dynamics of the universe can be treated in a pure metric approach without the need to introduce dark matter and/or dark energy components.Comment: 7 pages, 1 figure. Accepted for publication in the European Physical Journal