RESUMEN
The transfer of knowledge among academic subjects and linking different phenomena are crucial education competencies in Bloom's taxonomy of learning goals. From another side, modern cognitive science defines cognition and learning as embodied. The Synthetic Understanding through Movement Analogies (SUMA) educational framework proposes embodied learning of general scientific principles and concepts and knowledge transfer among academic disciplines encompassing sciences, humanities and arts. Accordingly, this research aimed to evaluate the educational potential of teaching a set of Dynamic Systems Theory (DST) concepts through body movement experiences in first-grade high school students. Five classes of high school students (n = 71; 23 girls, 46 boys and 2 non-binaries, aged 12-13 y.) followed a four-week intervention addressed to teaching five DST concepts (order parameter, stability, control parameter, instability and phase transition) and transfer them to biological and social phenomena. Students followed four teaching phases: a) embodied experience, b) reflective observation of the experience, c) abstract conceptualization of the experience using the five general concepts, d) transfer of knowledge through the concepts to different phenomena from biological and social science academic subjects. Students' integration and transfer of knowledge abilities were evaluated pre- and post-intervention through a questionnaire and three open-ended questions. Results were compared using non-parametric Wilcoxon matched-pairs test and effect sizes were calculated through PS dep measures. Students' abilities to integrate and transfer knowledge increased post-intervention (Z = 7.322, p < 0.0001, PSdep = 1). The effect of the intervention points to the potential of teaching general DST concepts through body movement experiences in high school students for achieving the goals of an embodied and unificatory transdisciplinary education.
Asunto(s)
Conocimiento , Aprendizaje , Cognición , Femenino , Humanos , Masculino , EstudiantesRESUMEN
PURPOSE: To compare the effects of high-intensity interval training (HIIT) and moderate-intensity training (CONT), matched for total work, on cardiorespiratory coordination and aerobic fitness. METHODS: This is a two-arm parallel group single-blind randomised study. Twenty adults were assigned to 6 weeks of HIIT or volume-matched CONT. Participants completed a progressive maximal cycling test before and after the training period. Principal component (PC) analysis was performed on the series of cardiorespiratory variables to evaluate dimensionality of cardiorespiratory coordination, before and after lactate turnpoint. PC1 eigenvalues were compared. RESULTS: Both HIIT and CONT improved aerobic fitness (main effects of time, p < 0.001, [Formula: see text] ≥ 0.580), with no differences between groups. CONT decreased the number of PCs from two to one at intensities both below and above the lactate turnpoint; PC1 eigenvalues increased after CONT both below (Z = 2.08; p = 0.04; d = 0.94) and above the lactate turnpoint (Z = 2.10; p = 0.04; d = 1.37). HIIT decreased the number of PCs from two to one after the lactate turnpoint only; PC1 eigenvalues increased after HIIT above the lactate turnpoint (Z = 2.31; p = 0.02; d = 0.42). CONCLUSIONS: Although CONT and HIIT improved aerobic fitness to a similar extent, there were different patterns of change for cardiorespiratory coordination. These changes appear training-intensity specific and could be sensitive to investigate the individual response to endurance training.
Asunto(s)
Adaptación Fisiológica , Umbral Anaerobio , Capacidad Cardiovascular , Entrenamiento de Intervalos de Alta Intensidad/métodos , Adulto , Femenino , Entrenamiento de Intervalos de Alta Intensidad/efectos adversos , Humanos , Ácido Láctico/sangre , MasculinoRESUMEN
The aim of the paper is to point out one way of integrating the supposedly incommensurate disciplines investigated in sports science. General, common principles can be found among apparently unrelated disciplines when the focus is put on the dynamics of sports-related phenomena. Dynamical systems approaches that have recently changed research in biological and social sciences among others, offer key concepts to create a common pluricontextual language in sport science. This common language, far from being homogenising, offers key synthesis between diverse fields, respecting and enabling the theoretical and experimental pluralism. It forms a softly integrated sports science characterised by a basic dynamic explanatory backbone as well as context-dependent theoretical flexibility. After defining the dynamic integration in living systems, unable to be captured by structural static approaches, we show the commonalities between the diversity of processes existing on different levels and time scales in biological and social entities. We justify our interpretation by drawing on some recent scientific contributions that use the same general principles and concepts, and diverse methods and techniques of data analysis, to study different types of phenomena in diverse disciplines. We show how the introduction of the dynamic framework in sport science has started to blur the boundaries between physiology, biomechanics, psychology, phenomenology and sociology. The advantages and difficulties of sport science integration and its consequences in research are also discussed.
Asunto(s)
Investigación Biomédica , Estudios Interdisciplinarios , Psicología del Deporte , Medicina Deportiva , Deportes , Humanos , CienciaRESUMEN
This study aimed to examine the validity of the modified Conconi test (CT) to predict lactate threshold (LT) during running. Twelve distance runners randomly performed the modified CT and the incremental test in which LT was determined directly by measuring blood lactate (BLa). Mean values of heart rate (HR) and running speed (RS) at heart rate deflection point (HRDP) obtained through the modified CT were compared with those at LT. Subsequently, the runners who showed a HRDP in the modified CT performed a 30-min prolonged exercise test (PET) at a RS corresponding to HRDP. During this test, the kinetics of BLa and HR were analyzed to determine whether a steady state in these variables could be attained. We succeeded in identifying HRDP in nine of our runners, whereas the remaining three runners showed entirely linear HR response. In those nine runners, no significant difference was found between HR and RS at HRDP and those at LT. Significant correlation was found between HR at HRDP and HR at LT (r = 0.84, p = 0.005), but RS at HRDP was not significantly correlated with RS at LT (r = 0.63, p = 0.07). All nine runners were able to complete the PET with steady state conditions being achieved for both BLa and HR. In conclusion, these findings indicate that the modified CT has a potential to be used as an alternative method for assessment of LT in distance runners presenting a HRDP.