Juan Carlos Redondo Castán

Universidad de León

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Co-Authors

José María Izquierdo Velasco

Universidad de Valladolid

Ana de Benito Trigueros

Universidad de Valladolid

Silvia Sedano Campo

Universidad Europea Miguel de Cervantes

Gonzalo Cuadrado Sáenz

Universidad de León

Silvia Sedano

Universidad Europea Miguel de Cervantes

G. Cuadrado

Francisco Javier Flores

Universidad de Salamanca

Gonzalo Cuadrado

Universidad de León

P. Gutiérrez

Metropolitan University of Technology

Guillermo Cuadrado

National Technological University

Cooperative Institutions

Inter-American Development Bank

Belastingdienst

Universidad de León

Departamento de Educación

Universitat de València

Valencia Catholic University Saint Vincent Martyr

Universidad de Valladolid

Universidad Europea Miguel de Cervantes

Universidad de Salamanca

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Effects of work-interval duration and sport specificity on blood lactate concentration, heart rate and perceptual responses during high intensity interval training

PLoS ONE (2018)

Diego Warr-di Piero Teresa Valverde Esteve Juan Carlos Redondo Castán Carlos Pablos Abella José Vicente Sánchez-Alarcos Díaz-Pintado

The aim of this study was to examine the impacts on blood lactate concentration, measured heart rate and assessment of perceived exertion during split sessions of equal relative load, as also their relationship to the specific sport practised. Nineteen regional-level athletes (nine middle and long-distance runners (cyclic group) and ten field-sport team players (acyclic group)) performed four high-intensity interval training (HIIT) sessions with work-interval durations of 10 s, 50 s, 90 s and 130 s. The sessions were carried out at their usual training sites with a separation of at least 48 hours. Blood lactate concentration was measured at rest and 3 min after the completion of each protocol. Heart rate was measured continuously during all sessions with a sampling rate of 1 s, and rating of perceived exertion (RPE) was requested at the end of the trial. The results showed an increase in blood lactate concentration, peak heart rate and rating of perceived exertion during long protocols as compared with short ones. No differences were observed in dependent variables between cyclic and acyclic groups. Significant but moderate correlations were observed between post-exercise blood lactate concentration, peak heart rate and RPE.

Interval training

Perceived exertion

Intensity

Exertion

Work rate

High-Intensity Interval Training

Lactate threshold

10.1371/journal.pone.0200690

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Citations (29)

Anthropometric and anaerobic fitness profile of elite and non-elite female soccer players.

PubMed (2009)

Silvia Sedano Roel Vaeyens Renaat Philippaerts Juan Carlos Redondo Castán G. Cuadrado

The main aim of the current study was to compare the anthropometrical and fitness profile of female soccer players by level and by playing positions. The second purpose was to explore correlations between kicking speed on the one hand and anthropometric features and explosive strength on the other.Female soccer players (N.=190) were tested divided in two groups: elite group (N.=100) and non-elite group (N.=90). Body mass, height, leg length, body composition, counter movement jump, drop jump and kicking speed with both legs were measured.After controlling for experience with multivariate analysis of covariance (MANCOVA), body mass, body fat and muscle mass differed significantly by level. MANCOVA also revealed that all the anthropometrical variables differed by playing position. However, MANCOVA did not show significant differences by level of play, neither for explosive strength nor for kicking speed but revealed significant differences among playing positions. There were significant positive correlations between body mass, height, leg length, muscle mass, counter movement jump height, drop jump height and experience on the one hand and kicking speed with dominant and non-dominant leg on the other for the elite and non-elite players.Elite players differ from their non-elite counterparts in terms of anthropometrical features, while explosive strength and kicking speed are not sensitive enough to distinguish between levels. On the other hand, the findings indicate few positional variations, and only goalkeepers, tend to have a specific anthropometric and fitness profile. Anthropometric variables, explosive strength and experience have an influence on kicking speed.

Elite

Vertical jump

Sprint

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Citations (54)

Marginal contribution of game statistics to probability of playing playoff at elite basketball leagues

Cultura Ciencia y Deporte (2021)

José María Casado Izquierdo Luis Enrique Pedauga Ana Pardo-Fanjul Juan Carlos Redondo Castán José María

The multilevel ordinal logistic mixed-effects method applied is proposed as a support tool to management in basketball teams helping to identify the game-related statistics that discriminate the final ranking in a regular season classification.A sample of 10684 games that cover 10 seasons and reach sample of 752 cases were evaluated from the two main Spanish basketball leagues (male and female).The multilevel analysis applied identifies the marginal effects of the main variables regularly evaluated by coaches and managers in basketball leagues, which may help them improve the performance of their teams.The results revealed that in Relegation zone the marginal contribution of field shots, defensive rebound, steals and turnovers percentage are 8.3 percentage points (pp), 7 pp, 9.6 pp and 8.6 pp respectively, higher than in Play-off zone (p<0.01).The model applied in this study make a significant contribution to the literature by identifying a methodology that can be straightforwardly extended for an assessment at the ranking of teams helping coaches in making important decisions such as hierarchically discriminating which factors are the most relevant in their league, both to avoid the relegation zone and to access the promotion zone.

Basketball

Elite

10.12800/ccd.v16i49.1586

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Citations (2)

Physical performance in women ́s football preseason. Body composition, heart rate and biomarkers, are they important? Rendimiento físico durante la pretemporada en fútbol femenino. Composición corporal, frecuencia cardíaca y biomarcadores, ¿son importantes?

RICYDE Revista Internacional de Ciencias del Deporte (2022)

José María Izquierdo Velasco Ana de Benito Trigueros Elvira Delgado Márquez Juan Carlos Redondo Castán

A well-designed football pre-season is crucial for the subsequent physical performance of the players. This study aimed to analyse, in this period, the effects of body composition, heart rate variability and physiological biomar- kers on female football players’ physical performance. To this end, 22 amateur female football players (23.68 ± 3.69 years) of the same team participated in the study. Physical performance factors (acceleration capacity and jumping ability), body composition, perceived exertion load, heart rate variability and some physiological biomarkers (salivary testosterone and cortisol) were evaluated weekly during a 5-week pre-season period (from T0 to T5). Wilks’ Lambda indicated a significant F-value in all variables except the high and low heart frequency ratio (LFtoHF). Scheffe’s post-hoc identified differences between T0 and all weeks in anthropometry variables, and between T0 and T5 in all other variables. According to the regression analyses, it was revealed a negati- ve impact between percentage of body fat and physical capacities, particularly with 20-m (-13.77) and 40-m (-14.46) when the exertion is measured by the logarithm of the root mean square of successive R-R interval differences (RMSSD). Therefore, the present research suggests that amateur female football players who start the training season with a lower body fat percentage are able to achieve a better fitness level in a short period of time.

Football players

Body Fat Percentage

10.5232/ricyde2022.06901

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Citations (2)

Quantitative assessment of the effects of official match on physical performance factors on under-16 and under-18 female basketball players at national league level

DOAJ (DOAJ: Directory of Open Access Journals) (2021)

José María Izquierdo Velasco Juan Carlos Redondo Castán

Basketball

10.21134/eurjhm.2021.46.4

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Citations (0)

Satisfaction spinning practitioners: Development of a scale for measuring La satisfacción en los practicantes de spinning: Elaboración de una escala para su medición

DOAJ (DOAJ: Directory of Open Access Journals) (2010)

Guillermo Cuadrado P. Gutiérrez Juan Carlos Redondo Castán I. Sanz

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Efecto relativo de la edad en fútbol profesional: influencia del nivel competitivo y la posición

Apunts Educación Física y Deportes (2019)

Mario López-del-Río Daniel Rabadán Juan Carlos Redondo Castán Silvia Sedano

espanolEl concepto efecto relativo de la edad se refiere a las consecuencias de las diferencias fisicas y psicologicas que pueden existir entre los nacidos mas temprana y mas tardiamente dentro del mismo ano natural. El objetivo del presente estudio fue examinar dicho fenomeno en el futbol profesional espanol, identificando la influencia del nivel competitivo y la posicion habitual. La muestra comprendia 5748 jugadores de tres niveles competitivos en las temporadas 2011-16: Primera Division (n = 2530), Segunda Division (n = 2749) y selecciones nacionales (n = 469). El analisis estadistico se baso en la prueba ji cuadrado con un calculo posterior de las oportunidades relativas y el intervalo de confianza del 95%. Los principales resultados revelan que en todos los niveles competitivos existe una sobrerrepresentacion de los sujetos nacidos en los primeros meses, siendo mayor la diferencia en el caso de la muestra de jugadores de las selecciones nacionales. Por posiciones, a excepcion de los extremos, en todas las demas existe esa misma sobrerrepresentacion. Se puede concluir que la estructura del futbol profesional espanol fomenta la aparicion de este fenomeno, probablemente por el temprano proceso de seleccion de jugadores EnglishRelative age effect refers to the physical and psychological differences among subjects born earlier or later in the same year. The objective of this study was to analyse this phenomenon in Spanish professional football, identifying the influence of competitive level and playing position. The sample comprised 5748 players of three different levels in the 2011-16 seasons: first division (n = 2530), second division (n = 2749) and national teams (n = 469). The statistical analysis was based on the chi-square test followed by the calculation of the odds ratios and the 95% confidence interval. The main results revealed an overrepresentation of players born in the early months in all levels, with a greater difference in the sample of national team players. This overrepresentation was found in all positions with the exception of wingers. It may be concluded that the structure of professional football in Spain fosters the appearance of this phenomenon, probably due to the early selection processes

10.5672/apunts.2014-0983.es.(2019/4).138.02

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Citations (4)

PROPOSAL FOR SELECTING WEIGHTLIFTING EXERCISES ON THE BASIS OF A CYBERNETIC MODEL

International Journal of Advanced Research (2020)

F. Javier Flores Juan Carlos Redondo Castán

The application of cybernetics to sport is based on two fundamental premises: logical organization of training and adaptation of loads to the real needs of the athlete at any given time.Thus, the aim is to achieve efficient selection of weightlifting exercises by means of an algorithm based on technical efficiency indexes, making it possible to undertake appropriate adjustments in the selection of exercises in accordance with the performance of weightlifters in a number of the most important weightlifting exercises.The cybernetic model described may be a useful tool for establishing which exercises are most necessary for a given weightlifter.Copy Right, IJAR, 2020,.

10.21474/ijar01/10857

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Citations (2)

Study of the efficiency of two strength program training in the Climbing’s yield

DOAJ (DOAJ: Directory of Open Access Journals) (2010)

G. Cuadrado Ana de Benito Trigueros G. Flor José María Izquierdo Velasco Silvia Sedano

The main aim of the current study was to determine the effectiveness of two strength training for climbing. 30 healthy men participated in the present study, and they were randomly divided into three groups: control group (GC) (n=10), maximal strength training group (GFM) and endurance-strength training group (GFR). The three groups trained three days per week, GC trained always in wall, but GFM and GFR changed one of them for a training session in the gym. The program lasted 10 weeks and we assesed different kinds of variables before and after the training: physical conditioning variables and hand-grip strength after climbing. We found significant differences in the three groups analysed. GFR obtained the best results according to climbing demands and GFM also obtained significant differences but not as specific as GFR. It could be said that endurance-strength training is the best for climbing. Key Words: Climbing, training, maximal strength, endurance-strength.

Climbing

Strength Training

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Running demands and tactical individual actions of wingers appear to depend on the playing formations within an amateur football team

Scientific Reports (2023)

José María Izquierdo Velasco Diego Marqués-Jiménez Juan Carlos Redondo Castán

We examine the differences in running performance demands and tactical individual actions for male amateur football wingers in four tactical formations: 4-2-3-1, 4-4-2, 3-5-2 and 3-4-2-1 during an entire season. Running demands were assessed in terms of: total distance run; distance traveled at 3 different speed ranges (Jogging, Running, and Sprinting); and number of accelerations registered in two different magnitude bands (Medium and High) while tactical individual actions were assessed through 3269 team match observations. 3-5-2 formation entails the highest running demands, exhibiting significant disparities in Jogging when compared to 4-2-3-1 and 3-5-2, in Sprinting when comparing 4-2-3-1 with both the 3-5-2 and the 3-4-2-1 formations. Moreover, the wingers in the 3-5-2 formation demonstrate the lowest scores in various tactical individual actions, including Shots: 3-5-2 vs. 3-4-2-1; Goal Area Shots: 3-5-2 vs. 3-4-2-1; and Dribbles: 3-5-2 vs. 3-4-2-1. Finally, wingers registered the highest levels of defensive tactical individual actions in 4-4-2 and 3-5-2. Findings suggest it would be of benefit for coaches to focus on formulating specific training plans to address the specific demands placed on wingers playing in these amateur matches and running performance demands and tactical individual actions should be considered together with tactical formation.

Team sport

Football team

Football players

10.1038/s41598-023-36157-6

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Citations (4)