In the context of teaching-learning of motor skills in a virtual environment, videos are generally used. The person who wants to learn a certain movement watches a video and tries to perform the activity. In this sense, feedback is rarely thought of. This article proposes an algorithm in which two periodic movements are compared, the one carried out by an expert and the one carried out by the person who is learning, in order to determine how closely these two movements are performed and to provide feedback from them. The algorithm starts from the capture of data through a wearable device that yields data from an accelerometer; in this case, the data of the expert and the data of the person who is learning are captured in a dataset of salsa dance steps. Adjustments are made to the data in terms of Pearson iterations, synchronization, filtering, and normalization, and DTW, linear regression, and error analysis are used to make the corresponding comparison of the two datasets. With the above, it is possible to determine if the cycles of the two signals coincide and how closely the learners movements resemble those of the expert.
Background: To begin research with cross-thematic topics, an analysis is necessary that collects data and historical accounts about these topics. In the field of health and technology, this principle is not unknown. In this case, it is the interest of this investigation to inquire about the topics "wearable" and "health" in order to gather enough information to establish how it has been developed, what the current topics are and what areas it is planned to study in a near future. The purpose of this study is to analyse the growth of the wearable technology and health subject matter. This will create an account of the most relevant themes over time in this subject and their evolution. This study will have an emphasis on recent years, in order to see which themes may be important for future research and publications. Methods: This paper aims at making a bibliometric exploration using information from the Scopus database using the search chain “weareable AND health” within the years of 2000 to 2017. The bibliometric software SciMAT was used for data visualization and analysis. Results: The results obtained are an analysis of the growth rate that is presented in Scopus publications between 2000 and 2017. In addition, a bibliometric analysis is obtained through the SciMat software, which shows the relevant issues that arise through time and that may be relevant for future research. Conclusions: Publications associated with the search chain “Wearable AND Health” from 2000 to 2017 were generally in constant growth over the years. With the SciMAT software, the main theme that was found was that of monitoring systems. In addition, it shows how new themes that are highly relevant emerge, such as mobile technologies and the study of algorithms, which emerge as an evolution from signal processing.
This paper presents the results of the application of four different tools (tourist card, questionarie, GPS and NFC) with the objective to study the movement of tourists in a tourist historic city (Popayán, Colombia). Given the need for these types of cities to manage tourism in a sustainable way, and considering that the management of tourist flows is a key aspect to achieve this, the aim was to find out which of the tools applied provides more precise data on the movement of tourists in the destination. For this, information was collected on the movement of tourists with four different tools, applying each tool in four different years (2011, 2012, 2013 and 2015) during the same time period (Holy Week). For the analysis of tourist movements, the Markov chain was obtained for each period. In order to study the generation of routes geo-location was used in each case. The results show that even though GPS technology provided more information on the visited places, NFC technology facilitates more extensive information. In addition, NFC technology allowed the extraction of important information about the places visited, showing a wide number of sites visited and, therefore, providing greater value for the study. Finally, the results of the study provide a better understanding of how destination management organizations could develop more suitable alternatives of the customer services systems, the delivery of tourist information and the identification of sites with heavy use. Conclusively, this study helps to identify how to take better advantage of the marketing strategies through different tools that analyses tourism movements.
Introduction: In youth soccer, ankle injuries are a concern due to their high incidence and impact on physical and athletic development. Objective: To analyze modifiable risk factors among young soccer players with and without a history of ankle injury in the city of Popayán, Cauca. Methodology: Descriptive and comparative cross-sectional study with 172 players divided into injured (n = 85) and uninjured (n = 87). A structured questionnaire, semi-objective measurements, body composition, and functional physical performance tests were applied. Results: A significant association was observed between playing position and the presence of injuries (p = 0.04). Players with more than seven years of practice had a higher incidence of injury (62%; p = 0.02). The injured players showed a higher percentage of body fat (14.17%; p = 0.03) and differences in body mass index (p = 0.01). Hip extension strength differed in the left leg (p = 0.00) and right leg (p = 0.01). In the vertical jump, differences were found in the height reached (p = 0.00) and flight time (p = 0.00). Dynamic balance showed differences in the left posterolateral reach (p = 0.01). Discussion: Anthropometric, functional, and athletic factors were associated with the presence of injuries in youth soccer players. Conclusions: Young people with a history of injury exhibited less favorable profiles in body composition, hip extension strength, vertical jump, and dynamic balance.
28 June 2021 in Revista Ingenierías Universidad de Medellín
Conference Derivative Article. Every day, people need to be trained, either to complement their professional skills or because of personal interests that lead to their well-being. Online education, especially MOOC and SPOC are good alternatives for carrying out continuing educational processes, but are not enough when it comes to learning motor skills. This paper shows a research approach on how MOOC can expand its functionalities so that it can be applied to learning motor skills. It also proposes the development of a project to integrate three components: the integration component, the wearable component and the open edX component for the future development of a "salsa" course. Finally, it proposes an architecture based on the 4+1 view model, where the functionality in different areas of the design is shown.
Background Following the signing of the “Final Agreement for the Termination of the Conflict” in Colombia, an unprecedented boost for tourism is observed, promoting rural development and environmental protection. In the academic realm, Colombian universities offer tourism training programs to develop professionals with skills in management, sustainability, and technology. Methods Information is gathered from the Scopus database on tourism trends and from the National Information System for Higher Education (SNIES) on academic programs in tourism in Colombia until 2022. Geographical maps are employed to visualize the global scope of publications in Scopus and the locations of programs in Colombia. Text mining is used on Scopus abstracts and profiles of Colombian programs, generating word density graphs, frequency tables, and word clustering graphs. Results 707 articles from Scopus originating from 86 countries are selected, and 46 profiles of Colombian universities with tourism programs in 19 regions are compiled. Maps and tables demonstrate the geographical location of article density globally and of universities in Colombia. Word clouds, frequency tables, and dendrograms are generated using the abstracts and profiles. Conclusions Text mining analysis reveals similarities and differences between research and education in tourism in Colombia. There is convergence in management and development, reflecting aligned interests in both datasets. Words like ethics and sustainability indicate a shared commitment to a responsible perspective in the sector. Scopus emphasizes research, while Colombian universities prioritize practical training, especially in tourism management. This difference raises questions about the impact on graduates’ preparedness and their contribution to tourism development in Colombia. The geographical location of programs in Colombia shows a clear connection between academia and the tourism sector, facilitating synergies and continuous improvements.