MHSalud: Revista en Ciencias del Movimiento Humano y Salud <p style="text-align: left;"><strong>MHSalud Journal:&nbsp;Journal of Human Movement Sciences and Health</strong> is&nbsp;<span class="tlid-translation translation">bi-annual scientific, bilingual and multidisciplinary publication.</span>&nbsp;<span class="tlid-translation translation">Its objective is to disseminate quality scientific knowledge generated in the field of Human Movement Sciences and Health through a digital, scientific, international and multidisciplinary journal. The areas in which manuscripts will be received are all those related to the Human Movement and Health sciences such as: Physical Education, Physical Health Promotion, Exercise Physiology, Motor Behavior, Sports Performance, Human Movement Medicine, Therapy Physics, Nutrition and human movement, Psychology and human movement, Physical Activity, among others. It is oriented at professionals in the Human Movement and Health Sciences as well as the general public. It is indexed in: SciElo, Redalyc, LATINDEX, DOAJ, OAI, Livre, DIALNET, DRJI and in the Emerging Source Citation Index (ESCI). MHSalud Journal does not charge for admission, processing or publication of articles.</span></p> en-US <p><span class="tlid-translation translation" lang="en"><span class="" title=""><strong>Self-archiving policy</strong>: The journal allows the self-archiving of the articles in their peer-reviewed version, edited and approved by the Editorial Board of the Journal to be available in Open Access through the Internet.</span> <span class="" title="">More information in the following link: <a title="sherpa" href="" target="_blank" rel="noopener"></a></span></span></p> <p><span class="tlid-translation translation" lang="en"><strong><span class="" title="">General conditions</span></strong><br><span class="" title="">The journal is hosted in open access repositories such as the Institutional Repository of the Universidad Nacional, the Kimuk Repository of Costa Rica and La Referencia.</span><br><span class="" title="">The editorial source must be recognized.</span></span></p> <p><span class="tlid-translation translation" lang="en"><span class="" title=""><a href="" rel="license"><img style="border-width: 0;" src="" alt="Licencia Creative Commons"></a></span></span></p> <p>MHSalud: Journal in Human Movement Sciences and Health by the Universidad Nacional is cover under a <a href="">Creative Commons Atribución-NoComercial-SinDerivadas 3.0 Costa Rica</a> license.</p> (María Amalia Penabad-Camacho) (UNAWEB Department) Wed, 01 Jan 2020 00:00:00 -0600 OJS 60 Analysis of overweight and obesity, levels of physical activity and self-esteem of Salvadoran children The objective of this study was to determine the BMI (Body Mass Index), the self-esteem and the level of physical activity of the children of the second cycle of the city of San Salvador. 11 schools participated: 359 (47 %) were girls and 399 (53 %) girls, with an average age of 11.49 ± 1.34 years, a height of 147.11 ± 0.10 cm and a weight of 47.53 ± 13.758 Kg. Weight, height was evaluated, body mass index, the perception of physical activity and self-esteem, through the Physical Activity Questionnaire for Older Children (PAQ-C), and Lawrence Self-Esteem Questionnaire (LAWSEQ). In the results obtained it was found that 29% (n= 227) are underweight, 46.7 % (n= 354) have a healthy weight, 18.3% (n= 139) are overweight and 5% (n= 38) He is obese. In the case of physical activity, the data collected show that 53.7% (n= 407) show values of low physical activity, 43.8% (n= 332) values of physical activity means and 2.5% (n= 19) values of high physical activity. In the case of self-esteem, the data show that 52.9% (n= 401) are in a low self-esteem condition, 43.1% (n= 327) have average self-esteem and 4.0% (n= 30) have high self-esteem values. It is concluded that the data obtained in the variables of body mass index, physical activity level and self-esteem in the students evaluated are alarming, which suggests the need to develop strategies for the intervention of this problem. Boris Evert Iraheta, Carlos Álvarez Bogantes ##submission.copyrightStatement## Wed, 01 Jan 2020 00:00:00 -0600 Influence of Altitude and Environmental Temperature on Muscle Functional and Mechanical Activation After 30' Time Trial Run The purpose of this study was to explore the influence of altitude and environmental temperature on muscle mechanical and functional activation after 30' Time Trial run (30' TT). Twenty physical active males (Age= 20.4 ±3.21 years, VO2max= 47.2 ±5.2 ml/kg/min) performed a 30' TT in three different conditions of altitude and temperature: Control Condition [CC] (1137 m.a.s.l. at 26 ±1.5°C), Heat-Low Condition [HLC] (3 m.a.s.l. at 30.5 ±0.6°C), and Cool-High Condition [CHC] (2369 m.a.s.l. at 14.2 ±0.6°C). Tensiomyography (TMG), Countermovement Jump (CMJ), and Delayed Onset Muscle Soreness (DOMS) were measured pre and post running. During the 30' TT, distance, speed, heart rate (HR), rate of perceived exertion (RPE), and thermal index (WBGT) were measured. Results show a significant decrease in body weight and a significant increase in DOMS and jump height in CMJ after running in each condition. TMG responses increased maximum radial muscle displacement (Dm) and decreased muscle contraction time (Tc) both rectus and biceps femoris muscles after running. During the 30' TT, the results did not show a significant difference in RPE, HR, distance, and speed among conditions. In conclusion, altitude and temperature seem not to significantly affect the mechanical and functional responses 30' TT, despite the tendency of HLC to decrease both activation and performance. Daniel Rojas-Valverde, Jose Alexis Ugalde Ramírez, Braulio Sánchez-Ureña, Randall Gutiérrez-Vargas ##submission.copyrightStatement## Mon, 09 Dec 2019 10:02:16 -0600 Effect of A Motor Intervention Based on The Guided Discovery Method on The Fundamental Motor Skills of The Child Unit Of 9 Years: Case Study The purpose of this research was to determinate the effect of a motor intervention based on the guided discovery method on the fundamental motor skills of a typical child. A 9-year-old child participated in the study, who feels physically active, practices sports regularly, attend primary school and has a normal state of health and cognition. The intervention was applied for 6 weeks, 2 evaluation sessions assess by the IPBM before and after intervention, and 4 practical sessions of 60 minutes, one day of the week for 4 weeks. For the analysis of the results, the percentage of change was used. The results after the intervention showed improvements in the percentage of change in 4 of the locomotor patterns between 33.33% and 300%; in manipulative patterns between 37.5% and 900%; as well as a 50% improvement in total locomotor skills and 85.18% in total manipulative skills. And a global improvement in PBM of 65.08%. Therefore, it is concluded that after this case study, an intervention model based on the method used can be a useful tool to improve fundamental motor skills in children. Maria Morera-Castro, Rita Arguedas-Víquez, Stephanie Brabenec-Aguilar ##submission.copyrightStatement## Mon, 09 Dec 2019 11:10:02 -0600 Effects of the Inclusion of Jump Exercises with and without External Overload in the Warm-Up on Physical Performance Parameters in Young Handball Athletes The aim of this study is to compare the effects of a warm-up with the application of loaded and unloaded jumps on the performance in speed, horizontal jumps and vertical jumps in youth handball players. The sample consists of 13 handball players from the city of San Carlos (16.2 ± 1.3 years). An experimental study with a randomized crossover design carried out. 3 different heating protocols applied, which involved running more dynamic stretching (RS), running, dynamic stretching and jumping (RSJ) and finally running, dynamic stretching and jumps loaded with 8% of your body weight (RSLJ). For the pre- and post-warming assessments, a countermovement jump test (CMJ), horizontal jump (HJ) and were used through a 20-meter timed to sprint test. The results show significant differences between pre- and post-test for the 3 groups in the SH (difference for CES: 0.09 ± 0.12; CESH: 0.12 ± 0.16 and EC: 0.07 ± 0.16), while only CES and CESH significantly improved the height in CMJ and sprint time of 20 meters (difference for CMJ: 2.95 ± 0.56 and 3.50 ± 0.73; and sprint 20 meters: 0.29 ± 0,31 and 0.20 ± 0.26, respectively). In conclusion, a warm-up that includes different types of jumps is effective in improving SH, CMJ and speed in 20 meters. More research needed to determine specific benefits of handheld loading jumps to improve physical performance. Nicolás Gómez-Álvarez, Francisco Moyano, Elías Huichaqueo, Matías Veruggio, Víctor Urrutia, Felipe Hermosilla-Palma, Gustavo Pavez-Adasme ##submission.copyrightStatement## Mon, 09 Dec 2019 11:25:21 -0600 Gait of Individual with Visual Impairment: Literature Review The gait in people with visual impairment (PWVI) has several variations that affect functionality and health, especially because it affects the skeletal muscle system. Purpose: perform a literature review in order to analyze the pattern of the walk, as well as the implications it has on individuals with low vision and blindness. Method: a systematic review was carried out in the following databases: SportDiscus with full text, psycINFO, Psychology and Behavioral Sciences Collection, Rehabilitation & Sports Medicine Source, Google Scholar, Research Gate, PubMed. Results: The way of walking is slower in the PWVI, they are cautious in the march, to protect themselves, although the surrounding is clear. The disadvantage of this variable is that people do not walk according to the optimal level of walking according to their age and height (recommended speed), so there would be no economy of movement, in addition, its functionality is also affected. Conclusions: The investigations showed that the PWVI, had atypical marches where they found in some cases greater ranges of movement in the involved joints, or on the contrary diminished movements, indicating small or forced movements, unnatural and therefore greater stress muscle and bone. It is very important the assessment in real situations on the PWVI, to be able to provide them with tools that can help them in their independent roll and accessibility. Carolina Alemán-Ramírez ##submission.copyrightStatement## Mon, 09 Dec 2019 11:33:51 -0600