In the era of big data, the capacity to produce textual documents is increasing day by day. Our ability to generate large amounts of information has impacted our lives at both the individual and societal levels. Science has not escaped this evolution either, and it is often difficult to quickly and reliably “stand on the shoulders of giants”. Text mining is presented as a promising mathematical solution. However, it has not yet convinced qualitative analysts who are usually wary of mathematical calculation. For this reason, this article proposes to rethink the epistemological principles of text mining, by returning to the qualitative analysis of its meaning and structure. It presents alternatives, applicable to the process of constructing lexical matrices for the analysis of a complex textual corpus. At the same time, the need for new multivariate algorithms capable of integrating these principles is discussed. We take a practical example in the use of text mining, by means of Multivariate Analysis of Variance Biplot (MANOVA-Biplot) when carrying out a systematic review of the literature. The article will show the advantages and disadvantages of exploring and analyzing a large set of publications quickly and methodically.

The spectrum of Teaching Styles (TS) provides a solid theoretical foundation for teaching Physical Education. It is common for teachers to use directive styles that do not meet program requirements. This is further accentuated in the case of dance, to the detriment of the development of emotional and cognitive factors. This study investigates the use of the Command TS compared to the Problem Solving TS. A total of 50 students participated in the study, based on a Communication Channels questionnaire and semi-structured interviews. The ANOVA indicates that there are highly significant differences (p-value ≤ 0.01) between the means of the TS analyzed, and cognitive participation is greater in the case of the Problem Solving TS. Frequency scores indicate that the Problem Solving TS is preferred by students (76.47%). Qualitative analysis of the interviews demonstrated that students prefer the Problem Solving TS because it gives them greater freedom to work at their own pace, contributing to the development of creativity, cooperative work and dynamism. In the case of the Command TS, students indicated a lack of practice and confidence as the reason behind their choice.

Frenar el cambio climático y disminuir el impacto de la sociedad es uno de los grandes retos actuales. Ello implica educar a las nuevas generaciones en prácticas sostenibles en el medio natural, respeto y cuidado por el mismo. El docente de Educación Física tiene que trabajar entre sus contenidos la Actividad Física en el Medio Natural (AFMN), fomentando en el alumnado respetar y valorar el medio ambiente. El objetivo de este estudio fue realizar una revisión sistemática de la literatura de los artículos publicados sobre la AFMN y Educación Física desde los inicios a la actualidad para analizar el número de publicaciones y la temática principal de las mismas. Para realizar el análisis bibliográfico, se utilizó el Análisis Estadístico de Datos Textuales, apoyado en el uso del MANOVA Biplot, obteniendo un resultado final de 142 artículos. Como conclusiones, se constatan las primeras investigaciones en 2010, con un aumento significativo a partir de 2019. Se constata una evolución de las temáticas en 3 grupos de años diferentes: 1) recreación y el ocio, 2) educación y, 3) educación, salud y ocio responsable, siendo este último en el que se encuentran la mayoría de las investigaciones. Las AFMN pueden generar múltiples beneficios en los adolescentes en diferentes áreas como son la física y mental. También cabe destacar, que estas actividades generan en los practicantes un mayor respeto por el medio ambiente. Palabras clave: actividad en la naturaleza, deportes en la naturaleza, educación aventura, actividades al aire libre, emociones. Curbing climate change and reducing its impact on society is one of the great challenges facing us today. It implies educating the new generations in sustainable practices in the natural environment, as well as respecting and caring for it. Physical Education teachers must include Physical Activity in the Natural Environment (AFMN) in their content, encouraging students to respect and value the environment. The aim of this study was to carry out a systematic literature review of the articles published on AFMN and Physical Education from the beginning to the present day to analyze the number of publications and their main themes. For the bibliographic analysis, the Statistical Analysis of Textual Data was used, supported by the MANOVA Biplot, obtaining a final result of 142 articles. The conclusions drawn show that the first investigations were conducted in 2010, with a significant increase from 2019 onwards. An evolution of the themes was observed in 3 groups in different years: 1) recreation and leisure, 2) education and 3) education, health and responsible leisure, the latter being the one in which most research can be found. AFMN can generate multiple benefits for adolescents in different areas both physically and mentally. It should also be noted that these activities generate greater respect for the environment in participants. Key words: nature activity, nature sports, adventure education, outdoor activities, emotions

Nowadays, in a society where the rate of mental health issues and imbalances is increasing, dance is acknowledged as a tool for emotional management. This study aimed to carry out a systematic review of the scientific articles published on dance and emotions, to analyse their themes and evolution. This review was carried out by the statistical analysis of textual data and their means, using the MANOVA Biplot to generate a lexical matrix, resulting in 216 articles. This was used to study the evolution between time periods and the topics addressed. In conclusion, it can be stated that there is a lack of scientific research on dance and emotions in Secondary Education, as it depends on the educational curriculum of each country, their laws and teaching protocols. Greater the frequency of performance, greater the improvements in physical fitness, cognitive, social, physical and affective functioning. In addition, dance therapy has positive results on emotional effects in illnesses such as Parkinson’s disease. This is why dance is a fundamental means of helping students work on emotional awareness and management, although it has limited involvement in the educational field.