Sports nutricion

Intermittent hypoxia refers to the discontinuous use of low oxygen levels in normobaric environment. These conditions can be reproduced in hypoxic tents or chambers while the individual is training in different physical activity protocols. Intermittent hypoxia can affect several body systems, impacting nutrition, physical performance, health status and body composition. Therefore, it is necessary to assess protocols, regarding time and frequency of exposure, passive exposure or training in hypoxia, and the simulated altitude...

INTRODUCTION: academic performance is influenced by numerous factors, some personal and others contextual in nature, which also have a close relationship with the health of students. Therefore, the aim of this study was to analyze the relationship and influence of lifestyle habits, various physical and psychosocial health indicators, and sociodemographic variables on academic performance. METHOD: the study was carried out on a sample of 761 students (14.51 ± 1...

BACKGROUND: despite multimillion-dollar investments in sports facilities, there is little information on their contribution to energy expenditure of the population. In this study, participation in 71 physical activities (PAs) and 31 different types of spaces was examined. OBJECTIVES: to evaluate which types of spaces are more effective from a public health perspective. METHODS: a cross-sectional sample was designed, stratified and proportional to the adult population of Gran Canaria (n = 3,000, ≥ 18 years)...

INTRODUCTION: this research aims to carry out a systematic review of physical activity programs that improve self-efficacy in children and adolescents with obesity, to realize their characteristics and thus design a more comprehensive and effective program for this population. OBJECTIVE: to analyze the characteristics of physical activity programs that improve self-efficacy in children and adolescents with obesity, through a systematic review. METHODOLOGY: systematic review of observational-descriptive design; the search was realized in databases of the health area: PubMed, ERIC, Cochrane, Redalyc, and Google academic...

The aim of the present study was two-fold: first, to determine the meeting all three 24-h movement guidelines in Colombian preschool-aged children, and second, to explore the associations between different socio-ecological correlates and the meeting of these guidelines. This was a cross-sectional study of data from the Encuesta Nacional de Situación Nutricional (ENSIN-2015) in Colombia, 2015-2016. The sample comprised 3,002 low-income preschoolers (3-4 years old, 50.7% boys). Data on physical activity, screen time and sleep time was collected using the Cuestionario para la Medición de Actividad Física y Comportamiento Sedentario, reported by their parents...

INTRODUCTION: sports supplements (SS) are widely used by all types of athletes to improve their performance. These SS are classified according to the ABCD system of the Australian Institute of Sports (AIS) from higher to lower scientific evidence. In mountain runners, their use could be necessary due to the physiological demands required by this sport. However, the literature on the use of SS by mountain runners is scarce. OBJECTIVE: to analyze the pattern of SS consumption in mountain runners by studying differences according to sex and competitive level (regional vs national)...

Physical activity (PA) is recognized as a key aspect in the prevention and treatment of psychological problems. PA recommendations to maintain and improve mental health were recently updated. Despite the fact that PA can be pivotal in interventions to prevent and treat eating disorders (ED), the role and dose of PA for this purpose are unknown. The papers analyzed in this review highlight the importance of PA in intervention programs to prevent and treat ED. Emerging evidence suggests that the PA we enjoy practicing, considered important and chosen, is associated with a positive effect on mental health, while the PA performed out of a feeling of guilt, pressure or a feeling of being forced to do it is associated with a negative effect...

Certain groups in the community are more vulnerable, such as adolescents and young people involved in recreational or sports activities that involve high competitiveness and are associated with high importance of body weight, who are significantly more at risk of developing an eating disorder (TCA). For effective primary prevention at the community level, the evidence indicates the advisability of directing our efforts towards those groups with the highest risk, with the health promotion paradigm being the most indicated formula...

Scientific evidence supports an interactive model of biopsychosocial influences on the etiology of eating disorders. New genome-wide association studies suggest underlying metabolic dysregulation in anorexia nervosa. Among the psychological factors, body dissatisfaction (IC) is the most consistent predictor, mainly in females. Low self-esteem, negative affect and internalization of the ideal of thinness predict IC. Certain personality traits and other individual factors such as a high body mass index, emotional problems and some metabolic and digestive diseases, social factors such as some sporting or professional activities focused on body shape pressure, characteristics of the family environment, and social and peer group pressures to be thin, currently mediated by the use/abuse of social networks, act as risk factors for ED...

In order to improve the recovery process in combat sports disciplines, ergo-nutritional strategies could be an effective option in training and competition. Some of these ergo-nutritional aids could improve performance but literature references are scarce, with controversial results regarding actual recovery effects. This systematic review aimed to examine which ergo-nutritional methods are most effective for assisting in the recovery process in combat sports, and to determine the appropriate training stimuli...

Introduction: the daily general activity pattern of preschool aged children is composed of sleep time, sedentary time, and physical activity of mild, moderate, or vigorous intensity. Objective: to determine the compliance with the recommendations for physical activity, sedentary behavior, and sleep according to the days of the week, sex, and age in children aged from 2 to 5 years. Methods: a cross-sectional study in 361 preschool aged boys and girls. The Questionnaire for the Measurement of Physical Activity and Sedentary Behavior in Children from Preschool to 4th grade (C-MAFYCS) was used, which inquires about three behaviors (physical activity, sedentary behavior, and sleep)...

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Eating disorders are a group of conditions which have a huge impact on the health and performance of athletes. The aetiology of eating disorders is multifactorial, being influenced by genetic and environmental factors, but also involving psychological factors and factors specific to the practising of sport. Eating disorders are highly prevalent in sport, particularly in disciplines involving endurance, those that have weight-categories or those where low weight is a competitive advantage and aesthetics are important...

Background: in recent years the prevalence of obesity in infants, children, and adolescents has increased alarmingly, which may affect their health, educational level, and quality of life. Objectives: the aim of this study was to determine whether a program with physical activity and nutritional recommendations may improve health-related quality of life (HRQL) in overweight and obese children. Material and methods: the design of this study was that of a randomized clinical trial (RCT). The sample consisted of 54 children with a median age of 10...

Introduction: protein is an essential nutrient that can be obtained through different food sources. In recent years, a growing development in the food industry of dairy products with higher protein content has emerged in the national market. Métodos: the present work analyzed the nutritional information, protein content, and amino acid profile of high protein yogurts. Five main brands of high-protein yogurt (PY) were selected, as was a sample of regular yogurt (RY), and one of whey protein isolate (WP), which underwent a proximal analysis and amino acid profile by high-performance liquid chromatography (HPLC)...

The use of nutritional supplements (NSs) is a widespread practice in both professional and amateur athletes. Their choice must be based on criteria of safety, legality, and effectiveness. There are several risks that some of these products can trigger, this being a reason for fraud to the consumer. By way of example, the presence of a legal substance in doses higher than its recommendation may cause unwanted side effects; on the other hand, its presence in quantities lower than necessary (effective threshold) may not have the effect expected or announced by the product...

Introduction: karate is a millennial martial art, currently inserted in the context of Olympic Combat Sports. However, important scientific gaps still persist in monitoring high-performance athletes, including the basal metabolism measurement of female karate athletes. Aim: to contribute to understanding the applicability of equations for predicting basal metabolic rate in this population. Methods: this is a cross-sectional study with a retro-analytical component, in which data were obtained from the medical records of seven athletes participating in the project "Karate São Paulo Olímpico" (São Paulo Olympic Karate) (KSPO) during their nutrition counseling, including body composition and indirect calorimetry testing, with the aim of comparing these data to basal metabolic rate prediction equations...

Introduction: cardiorespiratory fitness and body composition are determining indicators of health status during adolescence. The objective of the study was to analyze the relationship of both parameters with indicators of mental and psychosocial health, lifestyle habits, and sociodemographic variables, establishing their predictive factors. Method: a cross-sectional study was conducted with a representative sample of 761 students (14.51 ± 1.63 years old) from 25 educational centers in a northern region of Spain...

INTRODUCTION: professional soccer both in the local setting and in other countries is highly competitive, and those who practice it must have specific morphological, anthropometric, and body composition characteristics, in addition to constant monitoring of nutritional and training interventions. Currently, the gold-standard criterion for the evaluation of body composition is Dual Energy X-ray Absorciometry (DXA), which is a costly laboratory method with limited use for many professionals...

Introduction: there has been an increase in the number of endurance sports events during the last 20 years, as well as in the number of their participants. An adequate nutritional plan is essential for a satisfactory performance in this type of events, both in professional and amateur athletes. Objectives: the objective was to determine, evaluate, and compare with the current scientific recommendations the consumption of carbohydrates, water, and sodium by participants in a trail-running event. Methods: the competition completed by the athletes was the "Medio Trail de Alcoy 2019" (Alcoy, Spain), with a distance of 30 km...