Daniel Rojano

Daniel Rojano
Universidad Pablo de Olavide | UPO · Department of Sports and Computer Sciences

About

56
Publications
12,991
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182
Citations
Citations since 2017
33 Research Items
126 Citations
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Publications

Publications (56)
Article
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Quercetin (Q) is one of the most frequently consumed flavonoids in the human diet. The purpose of this systematic review and meta-analysis was to determine the effects of Q supplementation on muscle damage, muscle soreness and biochemical markers of inflammation, antioxidant capacity and oxidative stress after intense exercise. A literature search...
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Studies analyzing tennis players’ body composition and morphological and bioelectrical characteristics are scarce, especially among adolescents. This study aimed to explore sex- and age-based differences in body composition, somatotype, and bioelectrical properties among elite young male and female tennis players aged 13–16 years. Twenty-two male (...
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Background: Vitamin D is essential for the optimal health of the skeletal system. However, this vitamin is also involved in other functions of the human body, such as muscle, immune and inflammatory ones. Some studies suggest that adequate levels of vitamin D support muscular function during exercise and accelerate recovery because they reduce spe...
Article
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Introduction. High-speeds distances covered during a soccer match are considered a good indicator of team success, especially for some playing positions. These distances vary markedly among different playing positions, and match congestion typically results in a reduction of high-intensity activities. However, the different playing levels might inf...
Article
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Introduction. The aim of the present study was to investigate the effects of a 6-week low intensity plyometric training (PT) + whole-body electrostimulation (WBES) combined program, compared with traditional PT, on vertical jump performance, 20 m sprint-time and handgrip strength. Material and methods. 10 male and 10 female Physical Education stude...
Article
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Problem statement. Lower-extremity stiffness is the leg's resistance to a change in its length caused by an external force. Higher values of lower-extremity stiffness have been associated with higher maximum vertical jump height. Figure skating, volleyball, and ballet are three high-intensity intermittent disciplines characterised by a large number...
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The aim of this study was to analyze the morphological configuration of soccer players of an Italian first division team and to compare it with research published in recent decades. A total of 23 players were evaluated at mid-season, using the anthropometric field method and the values were processed with the KINBIA® software. It was established th...
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The analysis and control of body composition is essential in soccer due to its implication in performance. The aim of this study was to identify, in professional soccer players, the phase angle (PhA) of the lower limbs with possible patterns of improvement of the lean component measured by DEXA. At the same time, the evolution of hydric parameters...
Article
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El propósito del presente estudio fue analizar las diferencias en las actividades de alta intensidad entre los equipos mejores y peores de la Copa del Mundo de Fútbol de 2018. Se analizó la distancia recorrida a velocidades de 20-25 km/h, mayores de 25 km/h, la velocidad máxima y el número de sprints. No hubo diferencias significativas entre grupos...
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The objective of this study was to determine if the addition of post-activity antioxidants is a useful strategy for improving the specific analytical parameters related to oxidative stress and inflammation. The study was carried out in an Italian Serie A soccer team, between October, 2019 and January, 2020. In October, the measurements were carried...
Article
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Sprint ability and vertical jump are essential motor skills in many sports. Handgrip strength has been recently investigated as a predictor of muscular strength of the lower limbs, but its relationships with vertical jump and sprint has not been fully studied. Therefore, the aim of this study was: 1) to assess vertical jump performance, 20 m sprint...
Article
Purpose: The purpose of this study was threefold: 1) to assess kinematic/kinetic variables and vertical stiffness of recreational young female volleyball players during a vertical jump, 2) to identify the changes in those variables that occurred after low-intensity plyometric training, 3) to determine the relationship between stiffness and perform...
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This systematic review aims to investigate the effects of green tea supplementation on exercise-induced oxidative stress. Four electronic databases were searched from inception to December 2020: SPORTDiscuss, PubMed, Scopus, and Web of Science. The search strategy was established in the following manner: (green tea) (Title/Abstract) AND (exercise O...
Article
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Introduction. The purposes of this study were 1) to evaluate changes from baseline levels in bioelectrical phase angle (PhA) and markers of muscle damage and inflammation in professional players 36 h after a soccer match, and 2) to analyze the relationships between PhA and markers of muscle damage and inflammation in order to investigate if PhA mig...
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Context Beetroots have antioxidant and anti-inflammatory properties, which may help attenuate inflammation and oxidative stress, enhancing recovery from exercise-induced muscle damage (EIMD). Objective To evaluate the effects of beetroot supplementation on oxidative stress, inflammation, and recovery after EIMD. Data Sources SPORTDiscus, PubMed,...
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The confinement due to a SARS-CoV-2 pandemic has aggravated the physical and nutritional condition of elite athletes, modifying their training routine. Bioimpedance (BIA) studies body composition and is used to assess the evolution of medical, sports and nutritional interventions. The objective of the study was to observe if a specific nutritional...
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Running gait cycle begins when one foot comes in contact with the ground and ends when the same foot contacts the ground again. In a running gait cycle each lower limb has a stance phase and a swing phase. During the stance phase eversion of the subtalar joint is one of the mechanisms used to absorb impact forces. However, excessive rearfoot eversi...
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El objetivo del presente estudio fue analizar las variables cinéticas y el stiffness vertical de jóvenes bailarinas de ballet en la realización de un salto vertical. 16 adolescentes andaluzas participaron en este estudio. Ocho de ellas eran bailarinas de ballet (15,00 ± 1,07 años) que se encontraban cursando las enseñanzas profesionales de Danza Cl...
Article
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Problem statement.Vertical jump is an essential motor skill in many sports, especially in volleyball where the total number of jumps performed by a player during training and games is high. Lower-extremity stiffness seems to greatly affect the storage and utilization of elastic energy during stretch-shortening cycles and the rate of force developme...
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Phenolic compounds have antioxidant and anti-inflammatory properties and may prevent inflammation and oxidative stress as well as help the athletes to recover from exercise-induced muscle damage (EIMD). Tart cherry (TC) and pomegranate (PG) are two fruits with high content of polyphenols. Their antioxidant and anti-inflammatory properties have rece...
Article
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El patinaje artístico es una disciplina deportiva con varias modalidades y, en casi todas ellas, los elementos de mayor dificultad suelen ser los saltos, que deben ser altos para permitir varias rotaciones. El objetivo del presente estudio fue el de analizar las variables cinéticas y el stiffness vertical de un grupo de ocho patinadoras de artístic...
Article
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El propósito del presente artículo es el de analizar la fuerza media de impacto producida en la amortiguación de un salto vertical y su relación con los picos de fuerza, los momentos en los que se producen y la duración total de la amortiguación. 25 jugadores semiprofesionales de fútbol realizaron cinco saltos verticales con contramovimiento sobre...
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The objective of this review is to analyze some of the biomechanical factors involved in the most common running injuries: anterior knee pain, iliotibial band syndrome, Achilles tendinopathy, and medial tibial stress syndrome/tibial stress fracture. Eighteen studies met all inclusion criteria. Results showed that there is little consistent evidence...
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Un ciclo de carrera comienza en el momento en el que un pie toma contacto con el suelo y termina cuando vuelve a contactar con él. El objetivo del presente estudio es el de analizar en detalle los tiempos en los que se producen las diferentes fases del ciclo de la carrera y los momentos en los que la articulación subastragalina alcanza la máxima pr...
Conference Paper
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LA FUERZA MEDIA DE IMPACTO EN EL ATERRIZAJE DE UN SALTO VERTICAL Y SU RELACIÓN CON EL RIESGO DE LESIONES.
Conference Paper
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Context: It is well documented that mobilizations with movement (MWMs) are effective in improving range of motion and pain measures. There is however a lack of literature examining whether the effects of this treatment are short lived, or are sustained over time. Furthermore, there is a lack of literature examining more functional outcome measures...
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Objective The purpose of this paper is to assess the changes in the body composition and the cholesterol and triglycerides caused by a 6 weeks aerobic and resistance training program and a hypocaloric diet in a group of overweight post-menopausal women. Method The sample population was made up of 18 post-menopausal women, 9 of them were randomly a...
Article
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Objective: The purpose of this paper is to assess the changes in the body composition and the cholesterol and triglycerides caused by a 6 weeks aerobic and resistance training program and a hypocaloric diet in a group of overweight post-menopausal women. Method: The sample population was made up of 18 post-menopausal women, 9 of them were randomly...
Article
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El objetivo del estudio fue comparar el somatotipo y la composición corporal de 42 jugadores de fútbol de nivel amateur en función de su posición de juego (porteros, defensas, centrocampistas y delanteros). No se encontraron diferencias significativas en la talla de los jugadores entre ninguna de las posiciones de juego. Los centrocampistas present...
Article
En la actualidad coexisten básicamente dos tipos de salida en natación, la salida de agarre y la salida de atletismo. Los resultados obtenidos en los estudios que comparan la efectividad de ambos tipos de salida no son concluyentes. En este trabajo se ha pretendido encontrar diferencias entre algunas variables cinemáticas de ambos tipos de salida q...
Article
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INTRODUCTION: A new device for assessing and training dynamic balance, the TOBtrainerMR, has been recently developed. OBJECTIVE: To asses the inter-session reliability of balance assessment using the TOBtrainerMR. The study has also the purpose of giving error scores so that true changes in performance can be identified. METHODS: Thirty healthy sed...
Article
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Introduction: A new device for assessing and training dynamic balance, the TOBtrainer(MR), has been recently developed. Objective: To assess the inter-session reliability of balance assessment using the TOBtrainer(MR). The study has also the purpose of giving error scores so that true changes in performance can be identified. Methods: Thirty health...
Article
En una competición de patinaje artístico libre individual sobre ruedas, cada patinador debe realizar dos programas: un programa técnico o corto, de menor duración y un programa libre o largo, de mayor duración. En el programa técnico los patinadores deben realizar un número obligatorio de elementos denominados integrativos. En el programa libre los...
Article
El curling es un deporte que se practica sobre una estrecha pista de hielo y que adopta los principios básicos de los bolos o del lanzamiento de herraduras. La pista tiene 10 líneas perpendiculares al eje longitudinal de la misma y cuatro círculos concéntricos a cada lado, a modo de diana. Tradicionalmente se enfrentan dos equipos de 4 jugadores qu...
Article
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The quantification of muscle mass is an area of study that addresses various scientific disciplines from health and sport science as a component of body mass that is in close connection with aspects of health and athletic performance. A variety of methods and equations for their estimation, but implementing them is not always the most appropriate....
Article
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The quantification of muscle mass is an area of study that addresses various scientific disciplines from health and sport science as a component of body mass that is in close connection with aspects of health and athletic performance. A variety of methods and equations for their estimation, but implementing them is not always the most appropriate....
Article
Full-text available
In most common bilateral landings of vertical jumps, there are two peak forces (F1 and F2) in the force-time curve. The combination of these peak forces and the high frequency of jumps during sports produce a large amount of stress in the joints of the lower limbs which can be determinant of injury. The aim of this study was to find possible relati...
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Las tecnologías de la información y la comunicación (TIC) están cada vez más implantadas en el currículo de Educación Secundaria. Con este artículo queremos demostrar que el vídeo digital, analizado a 50 campos por segundo, es un recurso bastante más preciso para el cálculo de la altura del salto vertical tipo Abalakov que el tradicional test de Sa...
Article
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The objective of the Basic Competences is to highlight the essential learning of the Secondary School Curriculum. The fourth Basic Competence introduces in the Secondary School Program the use of the Information and Communication Technologies as an essential element to be informed, to learn and to communicate. To that effect, this article tries to...
Article
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El objetivo de este estudio ha sido examinar las variedades morfológicas de apoyo del pie y su repercusión en las lesiones por sobrecarga. Se trata de un estudio observacional transversal con 60 sujetos (35 mujeres y 25 varones) practicantes de nueve modalidades deportivas. Se han definido variables posturales, cinemáticas y cinéticas. Para la dete...
Article
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Resumen El movimiento realizado por el peso en el aire es un movimiento parabólico que, de acuerdo con las leyes físicas, depende de la velocidad de salida, del ángulo de salida y de la altura inicial. La velocidad de salida es más importante que los otros dos factores. Los ángulos óptimos de salida de los lanzadores profesionales son muy bajos. El...
Article
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Resumen El calcáneo puede realizar movimientos de inclinación sobre su cara interna (pronación) o externa (supinación). No existe evi-dencia experimental sobre la relación entre lesiones del miembro inferior, tipo de pie y valores excesivos de pronación o supinación. Tampoco existen estudios concluyentes sobre valores máximos de pronación y supinac...
Article
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The movement made by the shot in the air is a parabolic movement which, according to physical laws, depends on release speed, release angle and initial height. Release speed is more important than the other two factors. Optimum release angles of professional throwers are very low. The reason for this is that human body is conditioned to exert more...

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