Antonio Jesús Sanchez-Oliver

• PhD CCAFD y Nutrición Humana
• Professor (Full) at University of Seville

Background : Relative Energy Deficiency in Sport (REDs) poses a significant challenge to both health and performance in male athletes. This systematic review aimed to evaluate the effects of REDs on various health and performance parameters in male athletes. Methods : A comprehensive literature search was conducted up to April 2024, using four data...

Although the extensive use of sports supplements (SSs) is prevalent among cyclists, this area has been poorly explored; in fact, no studies have been conducted on this topic regarding women cyclists to date. This descriptive, cross-sectional study, which included 316 federated female road cyclists, aimed to analyze SS consumption patterns in relati...

Background: Sports supplements (SSs) are widely used among team sport athletes; however, evidence supporting the use of SSs among football referees at the elite level is scarce. The aim of the present study was to analyze the consumption of SSs among referees with respect to their level of competition and referee type (main referees (MRs) vs. assis...

Context Despite the progress toward gender equality in events like the Olympic Games and other institutionalized competitions, and the rising number of women engaging in physical exercise programs, scientific studies focused on establishing specific nutritional recommendations for female athletes and other physically active women are scarce. Objec...

The aim of this meta‐analysis is to investigate the sources of heterogeneity in randomized clinical trials examining the effects of curcumin supplementation on liver aminotransferases in subjects with nonalcoholic fatty liver disease (NAFLD). We conducted a systematic search of the PubMed, SCOPUS, and Web of Science databases for randomized clinica...

The impact of obesity on adipose tissue function is well acknowledged, but the role of physical exercise in regulating inflammatory markers and gene expression in obese individuals remains uncertain. This study aims to investigate the effects of chronic exercise on inflammatory gene expression in adipose tissue and to explore sex differences in res...

Background This study aims to identify sports interventions for children and adolescents (CaA) with chronic diseases and evaluate their impact on physical, psychological, and social well-being. The findings of this study will contribute to our understanding of the potential benefits of sports interventions for CaA with chronic diseases and inform f...

El presente proyecto de recurso docente pretende la implementación de experiencias inmersivas basadas en la realidad virtual, mediante la visualización de videos 360, en el proceso de enseñanza-aprendizaje de los fundamentos técnico-tácticos del Voleibol. La literatura científica destaca que el uso de la realidad virtual mediante videos 360 permite...

Abstract Introduction The integration of gamification in mHealth interventions presents a novel approach to enhance user engagement and health outcomes. This study aims to evaluate whether comparison-oriented gamification can effectively improve various aspects of health and well-being, including physical activity, sedentary behavior, sleep, and ov...

The widespread use of sports supplements (SS) to enhance athletic performance extends to cyclists, although little research has been conducted on this subject within this sport. This descriptive and cross-sectional study involved 1688 federated road cyclists, aiming to analyse the pattern of SS consumption concerning the degree of scientific eviden...

Resumen: El presente documento de posicionamiento del grupo de trabajo de ejercicio físico de la Sociedad Española de Estudio de la Obesidad tiene como objetivo establecer pautas claras para el diseño y aplicación de programas de ejercicio en población con obesidad. En el primer apartado, se identifican las limitaciones respecto a la investigación...

Abstract: Winter sports athletes challenge with increased energy expenditure, glycogen utilization, and fluid loss due to cold environmental conditions. Nutritional supplements (NS) may provide various benefits such as improved health or performance, more effective training, and a direct performance advantage to winter sports athletes such as skier...

Formato: digital.

Background: The use of sports supplements (SS) to improve sports performance is very common in athletes. In the case of triathletes, the physiological characteristics of the sport may require the use of certain SS. Although the consumption of SS is widespread in this sport, very few studies have investigated it thus far. The aim is to analyze the...

The aim of this study was to analyse differences in velocity, distance travelled and manoeuvres performed by Olympic sailors of the RS:X class using a GPS device. Fifty-three Olympic sailors of the RS:X class (28 males and 25 females) who competed in a World Championship were selected. The sample was divided into tertiles (T1, T2 and T3) according...

Background: The use of sports supplements (SS) to improve sports performance is widespread in all types of athletes, however, the specific characteristics of mountain races may require the use of certain SS. Despite being a sport where the consumption of SS seems widespread, few studies have been conducted in this regard. The objective of this stu...

Background: Sports supplements (SS) are widely consumed by many types of athletes to improve their performance. These SS are classified according to their level of scientific evidence, by the ABCD system from the Australian Institute of Sport (AIS). In open water swimming, their use may be necessary due to the physiological challenges posed by thi...

Background /Objectives: The aim of the present study was to analyse possible differences in anthropometric characteristics of elite sailors based on categories and performance level. Methods ː A total of 42 young (aged 12–18 years) elite sailors (men = 31; women = 11) of the Monohull (n = 21) and Windsurfing (n = 21) categories composed the study...

The benefits of physical fitness (PF) for health are well-known. Low PF significantly contributes to the prevalence of obesity in adolescents, with an increased risk of developing chronic diseases. The objectives of the present study were to explore the health-related PF components and body composition levels in adolescents in three European cities...

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 s...

This study aimed to evaluate the consumption of dietary supplements (DS) and to determine related topics in Turkish football players of different sexes and competition levels. A total of 117 footballers (79 males and 38 females) completed a specific survey regarding DS consumption in athletes. The type of DS ingested was classified based on the lev...

Sports supplements (SS) are commonly used by athletes to improve their performance. SS use by competitive swimmers is reported to be prevalent but there is no evidence of such use by elite swimmers, either male or female. The objective of this research was to study the patterns of SS use by competitive swimmers based on sex and competitive levels (...

The usage of dietary supplements (DS) is a potential strategy to achieve success for professional soccer players who have a very challenging schedule with national and international competitions. The aim of this study is to evaluation the DS consumption and related issues of Turkish soccer players. 117 professional soccer players (79 male and 38 fe...

Handball performance is a team-sport characterized by high intensity efforts interspersed with recovery periods. Due to high demands of handball performance, the use of ergogenic aids is a common strategy of handball players with the aim of enhancing handball performance, to allow more effective training, and to increase the rate of recovery. Altho...

This chapter presents two essential premises to abolish the classic bilateral relationship between nutrition and strength: the relationship of strength production with hypertrophy, focusing in the mechanical and physiological mechanisms involved on strength production (i); and, the relationship between sport, strength and nutrition, avoiding using...

The aim of the present study was to analyze the effect of conservative non-invasive treatments based on eccentric training, stretching and extracorporeal shock wave therapy (ESWT) supplemented with β-Hydroxy β-methylbutyric (HMB) or placebo (PLAC) on body composition, pain and muscular function (jump ability, muscular power and muscular strength) i...

Different rugby positions make different demands on players. It, therefore, follows that optimum body composition may vary according to the position played. Using anthropometry and bioimpedance analysis (BIA) to assess body composition, the present study aimed to compare the effect of sex and position on body composition variables using anthropomet...

Introducción: El uso de suplementos deportivos (SD) es muy común entre los atletas y durante los últimos años la prevalencia de su consumo ha ido aumentando. Sin embargo, no todos los SD proporcionan los beneficios que se busca cuando se decide consumir este tipo de sustancias. Es por ello que las entidades científicas han puesto su foco en la eval...

Patellar tendinopathy (PT) is one of the most common musculoskeletal pain problems associated with sport, particularly those that includes jumping activities. Different studies have proposed that through nutrition it is possible to optimize physical rehabilitation in sports injuries. The objective of the present study is to analyze the effect of no...

This study examined the effect of caffeine supplementation (CAFF) in a Wingate test (WT), and the behaviour of blood lactate concentrations (BLa) and neuromuscular fatigue (NMF), measured as reduced countermovement jump (CMJ) performance, in response to the WT. In a double-blind crossover study, 16 participants attended the laboratory twice, separa...

El metabolismo representa todo el conjunto de reacciones que se producen en nuestro organismo. Durante una situación especial, como es el ejercicio, se hace necesario poder soportar una adecuada producción de energía para conseguir el máximo rendimiento. Dependiendo de diferentes factores, el organismo usa en mayor o menor medida las diferentes vía...

La nutrición deportiva es un campo en constante evolución con cientos de trabajos de investigación publicados anualmente. El estrecho margen existente en el deporte entre el éxito y la derrota, y en busca de una mejora del rendimiento, hace que muchos deportistas acudan al consumo de suplementos nutricionales (SN). A pesar de ser un mercado con gra...

Background: The aim of this study was to analyze the consumption of sports supplements (SS) in competitive level fencers and compare differences based on sex and competitive level (international and national). Methods: A total of 49 fencers (18 men and 31 women) of national (n = 16) and international (n = 33) level completed a questionnaire with qu...

Introduction: 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...

This research seeks to ascertain the extent to which the innovative and competitive capacities of knowledge intensive business services (KIBS) companies are influenced by the service type (technological vs professional) and their respective location (rural vs urban) in times of crisis. Through recourse to structural equation models, the results dem...

Abstract This research seeks to ascertain the extent to which the innovative and competitive capacities of knowledge intensive business services (KIBS) companies are influenced by the service type (technological vs. professional) and their respective location (rural vs. urban) in times of crisis.Through recourse to structural equation models, the r...

Sleep is a vital element of adolescents’ overall health; it influences their body and mind and thus affects their quality of life. Adequate sleep quality and duration are essential for maintaining optimal metabolic health and lowering the risk of developing several medical conditions, such as cardiovascular disease. The current study aimed to asses...

Background The aim of this study was to analyze the consumption of sports supplements (SS) in competitive level fencers and compare differences based on sex and competitive level (international and national). Methods A total of 49 fencers (18 men and 31 women) of national (n= 16) and international (n= 33) level completed a questionnaire with questi...

Objective: The aim of this study was to investigate the effects of caffeine supplementation on: (i) psychological responses of subjective vitality and mood; (ii) performance through a Wingate test; and (iii) rate of perceived exertion (RPE) reported after a Wingate test. Methods: Fifteen male participants (22.60 ± 2.16 years) ingested 6 mg·kg-1...

Purpose: the aim of the present study was to analyse the pattern of dietary supplements (DS) consumption on federated rugby players, including the analysis of differences based on the sex and competitive level (professional vs. amateurs). Material and methods: 144 rugby players (83 male and 61 female), of whom 69 were professionals and 75 amateu...

The aim of this study was to analyze the anthropometric characteristics and sport supplement (SS) consumption patterns of heavyweight and lightweight international rowers. Methods: The 13 heavyweights (11 males) and seven lightweights (five males) of the Spanish National Rowing Team were recruited for the study. Body composition was measured by bio...

Sports supplements are commonly used by elite athletes with the main goal of enhancing sport performance. Supplements use might be substantially different depending on the sport discipline, sex, and competitive level. To date, data about prevalence and the most-commonly used supplements in handball are scarce. Thus, the aim of this investigation wa...

Background. Obesity can be defined as an imbalance between calorie intake and energy expenditure as a result weight gain. Currently is accepted that obesity is one of the major social and health problems worldwide and its prevalence is continuously increasing. Visceral fat is considered as a pathogenic factor in obesity. Objective. The main was to...

The fitness sector has always been linked to the analysis of the loyalty of its consumers. Different studies have shown the importance of sports service and human resources for greater customer loyalty. However, few works have studied how the physical environment or servicescape influences the behavior of consumers in fitness centers based on gende...

Obesity is related to low-grade systemic inflammation. This state of inflammation is characterized by the alteration in adipokine regulation, which may lead to a situation of cardiometabolic risk. The aim of this study was to evaluate the effects of a concurrent training program on markers of lipoinflammation in adult people with obesity, comparing...

Objetivo: La actividad física tiene efectos positivos sobre la salud ósea. Para desarrollar programas de prevención de la osteoporosis basados en actividad física, la intensidad de la misma debe cuantificarse con precisión con el fin de garantizar su efectividad así como la integridad esquelética del individuo. El objetivo ha sido evaluar la influe...

Introduction:Tennis is characterized by a large number of competitions and little recovery time between them. Thus, tennis players and coaching staff have become interested in the role that nutrition can play in maximizing sports performance. The scientific literature does not have recent narrative and/or systematic reviews about to nutrition in te...

This study assessed the effects of COVID-19 home confinement on physical activity, sedentary behavior, smartphone use, and sleep patterns. Data was collected in a sample of 20 young adults (mean age ± SD: 22.6 ± 3.4 years; 55% males) over seven days pre- and during the COVID-19 lockdown. Objective and subjective physical activity (Accelerometer and...

During the last few years, the numbers of competitors in endurance and ultra-endurance sports modalities have increased significantly. This type of competition is an extreme challenge for athletes. Therefore, they have an increased the risk of developing medical and nutritional problems. The aim of the work is to estimate the incidence of nutrition...

The sports performance of dinghy sailors is determined by their state of nutrition and hydration. Sports supplementation plays a prominent role in elite sailors, being essential in periods of competition due to its characteristics. This study aims to analyze the consumption of sports supplements (SS) in the different categories and groups of sailor...

Osteoporosis is considered a major public health problem worldwide. In order to develop effective physical exercise protocols for the prevention of osteoporosis and ensure skeletal integrity, the intensity of the exercise must be quantified objectively and accurately. This study aimed to assess the validity of a wearable accelerometer-based activit...

Beetroot juice (BJ) contains high levels of inorganic nitrate (NO3−) and its intake has good evidence in increasing blood nitrate/nitrite concentrations. The ingestion of BJ has been associated with improvements in physical performance of endurance sports, however the literature in intermittent sports is scarce. The aim of this study was to investi...

Background Caffeine supplementation (CAFF) has an established ergogenic effect on physical performance and the psychological response to exercise. However, few studies have compared the response to CAFF intake among athletes of different competition level. This study compares the acute effects of CAFF on anaerobic performance, mood and perceived ef...

Obesity, low levels of physical fitness, and unhealthy eating patterns are responsible for part of the health problems of adolescents today. The current study aimed at examining the association between the adherence to the Mediterranean diet (MD), through each answer to the items of the Adherence to the MD Questionnaire (KIDMED), and physical fitne...

Unhealthy lifestyles, low levels of physical fitness, and adherence to the Mediterranean diet (MD) are associated with bad quality of life and the development of a wide range of non-communicable diseases (NCDs). The current study aimed to evaluate the level of adherence to the MD in physical fitness performance and body composition parameters in ch...

Childhood and adolescent obesity has become one of the most vital challenges to overcome in the present age. Physical fitness, physical activity and the Mediterranean diet (MD) are valuable tools for its prevention and treatment. The main objective of this study is to analyze the associations between health-related physical fitness components, body...

CrossFit is a type of high-intensity functional exercise programme in which a type of philosophy of life and competitive sport take place together. This product is created for all kinds of people and interrelates with a diversity of social practices. This work aims to analyze the relationships between customer engagement, perceived value, satisfact...

Purpose: Dietary supplementation with inorganic nitrate (NO3-) can enhance high-intensity exercise performance by improving skeletal muscle contractility and metabolism, but the extent to which this might be linked to altered psychophysiological processes is presently unclear. The purpose of this study was to assess the effects of NO3--rich beetro...

Strong evidence during the last few decades has highlighted the importance of nutrition for sport performance, the role of carbohydrates (CHO) being of special interest. Glycogen is currently not only considered an energy substrate but also a regulator of the signaling pathways that regulate exercise-induced adaptations. Thus, low or high CHO avail...

Las tecnologías de la información y comunicación(TIC) han producido grandes cambios en las universidades, destacando el uso de las plataformas de teleformación. El objetivo de este trabajo es diseñar y validar un cuestionario que dé a conocer los usos y potenciales didácticos de la plataforma Moodle utilizada en los másteres oficiales de la Faculta...

The use of doping agents has these days become a public health problem, as it also affects young and non-competitive amateurs in different sports. To prepare for competition, bodybuilders perform aggressive dietary protocols, so, bodybuilders frequently consume nutritional supplements (NS) and banned substances in large dosages. Thus, the aim of th...

Purpose The purpose of this paper is to understand the current relationship between factors such as desire and viability and entrepreneurial intention, using the Business Event Model as a point of analysis, as well as to understand the influence of gender as a moderating effect on entrepreneurial intention. Design/methodology/approach A total of 2...

Purpose The purpose of this paper is to present a project called EmprendeSport, whose aim is to increase knowledge in entrepreneurship and sports in students, professors and professionals through seminars carried out from 2015 to 2018. This study summarises the experience and data extracted throughout these seminars with the purpose of helping to d...

Resumen: Las estrategias nutricionales durante la fase de recuperación del deportista son fundamentales. Uno de los principales objetivos de la recu-peración es la reposición del glucógeno muscular. Este aspecto se hace más importante cuando los deportistas se enfrentan a entrenamientos intensos o eventos competitivos con cortos periodos de recuper...

El objetivo de este estudio fue analizar y describir la situación actual de la calidad en las organizaciones deportivas de gestión de instalaciones deportivas españolas. De un total de 5.065 registradas bajo el código nacional de actividades económicas 9311, se procedió al estudio pormenorizado de cada una de las organizaciones a través de la obser...

In this review our aim is to discuss the potential benefi ts of resistance training in healthy subjects and patients with cardio-metabolic disease. In the last decades, evidence about the pivotal role of muscle tissue and proper muscle functionality in health and disease have been accumulating. Sarcopenia and muscle wasting have erected as a fi rst...

Con el presente trabajo se pretende ayudar a los gestores de empresas deportivas a lograr mejores resultados en sus empresas. A partir de la creación de valor para los clientes las organizaciones deportivas van a lograr mejores resultados, y para ello, la gestión del conocimiento y, en concreto, la creación del mismo, se presenta como un antecedent...

The aim was to analyze the effects of cardiorespiratory exercise and air pollution on cognition and cardiovascular markers in four groups of older women: the active/clean air group (AC), the active/polluted air group (AP), the sedentary/clean air group (SC), and the sedentary/polluted air group (SP). Active groups performed a training task based on...

Abstract The aim of the current study was to develop a mobile application implementing gamification design principles to promote healthy lifestyles and enhance overall wellbeing as a possible health strategy in the workplace for creative industries. GameMyHealth is a mobile application (App) designed to help users record and monitor lifestyle-relat...

Background: Squash is one of the four most popular racquet sports, practiced by 20 million people worldwide. It is a sport that has been scarcely researched in the area of nutrition, and even less so regarding the dietary habits of its players. The objective of this work is to perform a descriptive and comparative analysis of dietary habits in squa...

Sleep is a fundamental determinant in the performance and health of the athlete. At present, some experts define it as the best recovery strategy due to its physiological and restorative effects. Athletes should be encouraged to sleep longer than the general population, due to the recovery demands imposed by the exercise. The present review looks f...

Existen muchos artículos que recomiendan el uso de suplementos nutricionales para jugadores de fútbol de nivel profesional, aunque se han realizado con una muestra diferente. El objetivo de esta revisión fue analizar qué estudios existen sobre los efectos de la suplementación deportiva en jugadores/as de fútbol profesional. Se realizó una búsqueda...

La actividad físico-deportiva (AFD) se muestra como un factor determinante en el tratamiento de la obesidad. Una mala adherencia sigue siendo un factor clave. El objetivo del presente estudio fue conocer las motivaciones, desmotivaciones y barreras para la práctica AFD en adultos con obesidad. A través de un cuestionario previamente diseñado y medi...

Caffeine used as a supplement has been shown to improve physical and cognitive performance in several sport modalities due to its effects on the central nervous system. This review assesses the direct effects of caffeine supplementation on performance in combat sports. Using the PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analy...

El índice de Masa Corporal (IMC) es aceptado por la mayoría de las organizaciones de salud como una medida de primer nivel de la grasa corporal y como una herramienta de detección para diagnosticar la obesidad. El IMC también se usa de forma amplia como factor de riesgo para el desarrollo o la prevalencia de distintas enfermedades, así como para di...

Childhood and adolescent obesity are currently among the greatest challenges for public health. Physical activity, physical fitness, and adherence to the Mediterranean diet (MD), representing powerful indicators of healthy lifestyles, are shown as determinant factors in the prevention and treatment of obesity. The aim of the present study has been...

La bibliografía sobre el consumo de suplementos nutricionales (SN) en ciclistas de montaña es escasa. El objetivo del presente estudio fue evaluar el consumo de SN en un grupo de ciclistas de montaña de las categorías masculinas Sub-23 y Master 30 que participaron en el circuito andaluz del 2016. Se registraron un total de 62 cuestionarios. Éste fu...

Bien es sabido que una nutrición adecuada puede acelerar la recuperación, mejorar las adaptaciones al entrenamiento y el rendimiento. En los raids de aventura esto se hace más importante por el estrés que supone para el organismo pruebas de larga duración y con combinaciones tan variadas y, por la realización de éstas en entornos extremos que puede...

El uso de suplementos en deportistas es muy frecuente, desde amateurs a profesionales. La prevalencia varía mucho según el sistema utilizado en la recogida de datos, con un rango estimado entre el 40-100%, lo que indica el uso generalizado de los suplementos por parte de los deportistas. Un uso adecuado y responsable de la suplementación por parte...

Iron deficiency is a frequent and multifactorial disorder in the career of athletes, particularly in females. Exercise-induced disturbances in iron homeostasis produce deleterious effects on performance and adaptation to training; thus, the identification of strategies that restore or maintain iron homeostasis in athletes is required. Hepcidin is a...

La gestión de la deuda en las organizaciones deportivas es una variable determinante para la supervivencia de éstas, la falta de control puede afectar al buen funcionamiento de una entidad. Según los datos existentes, las organizaciones que gestionan campos de golf gozan de una buena situación económica. Por ello, el propósito del presente estudio...

Esta investigación aborda a partir de la Teoría de la Generalizabilidad (TG) la optimización de recursos en la gestión deportiva. Se utilizó una estructura de diseño compuesta por las facetas usuarios (U), actividades (A), escalas (E) e ítems (I), siguiendo un diseño no ortogonal, parcialmente anidado y multifaceta dentro del Modelo General Lineal...

The aim of the present study is to analyse nutritional supplements (NS) consumption by squash players of different levels (international vs. national). A total of 14 international players and 28 national ones answered a NS consumption frequency questionnaire that had been previously validated. A T-Student test was used for independent samples and a...

In the global sport business industry, growth and development within and across various sport businesses are essential for competitive advantage. This fascinating collection of papers examines how the development and management of resources and opportunities in sport business is vital to success. Commissioned by the World Association for Sport Man...

Abstract: Non-communicable diseases caused 16 million early deaths in 2016 according to the data published by the World Heatlh Organization. Insufficient physical activity has become an international concern since several years ago and it is strongly related to these early deaths. The present study estimated the mortality and economic expenses of c...