Article
Chemistry, Analytical
Carlos Majano, Jorge Garcia-Unanue, Antonio Hernandez-Martin, Javier Sanchez-Sanchez, Leonor Gallardo, Jose Luis Felipe
Summary: The objective of this study was to determine the suitability of thermography to detect fatigue in male football players. Participants were divided into low and high thermal asymmetry groups based on thermography session. The results showed that thermal asymmetry in hamstrings had a significant impact on performance, while asymmetries in thighs and calves did not.
Article
Sport Sciences
Chris Bishop, Will McAuley, Paul Read, Oliver Gonzalo-Skok, Jason Lake, Anthony Turner
Summary: This study found that a 6 x 40-m repeated sprint protocol is effective in inducing acute fatigue in recreationally active individuals, as evidenced by reductions in jump height and increased interlimb asymmetries.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2021)
Article
Multidisciplinary Sciences
Francisco Tomas Gonzalez-Fernandez, Olalla Garcia-Taibo, Moises Vila, Hadi Nobari, Filipe Manuel Clemente
Summary: The present study aimed to investigate the impact of force-power-velocity, vertical and horizontal jumps, and repeated sprint ability on the sprinting performance of adult women soccer players. The findings revealed that lower-limb power, maximal speed, and peak power significantly influenced sprinting time, while vertical jump determined stride frequency.
SCIENTIFIC REPORTS
(2022)
Article
Sport Sciences
Stuart A. McErlain-Naylor, Marco Beato
Summary: The study found that jump take-off momentum is an effective predictor of sprint momentum under certain conditions, particularly when there is high inter-individual variation in body mass and low inter-individual variation in jump height. Even if there is a negative correlation between jump height and sprint velocity, the correlation between the two momenta remains high. However, jump momentum is not consistently a better predictor of sprint momentum compared to simply using body mass alone.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2022)
Article
Environmental Sciences
Che-Hsiu Chen, Yu-Chun Chen, Ren-Shiang Jiang, Lok-Yin Lo, I-Lin Wang, Chih-Hui Chiu
Summary: The study demonstrated that transcranial direct current stimulation (tDCS) significantly enhances countermovement jump performance, reduces sprinting time, and improves fatigue index during sprints in trained basketball players.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Multidisciplinary Sciences
Joel M. Garrett, Cedric Leduc, Zeki Akyildiz, Daniel J. van den Hoek, Filipe Manuel Clemente, Mehmet Yildiz, Hadi Nobari
Summary: This study investigated the effects of three typical football training sessions on neuromuscular responses and examined the reliability of peak speed (PS) measured during a submaximal running test (SRT) in identifying neuromuscular fatigue (NMF) status. The results showed a significant decrease in all variables after the training sessions. The external load variables of each football session differed significantly. The study also demonstrated that PS can be a reliable measure for monitoring NMF status.
SCIENTIFIC REPORTS
(2023)
Article
Anatomy & Morphology
Erkan Akdogan, Ece Ayaz Kanat, Deniz Simsek, Ali Onur Cerrah, Semra Bidil, Ismail Bayram, Yelda Akti
Summary: This study assessed the correlation between body composition, multiple repeated sprint ability (MRSAB) test, and vertical jump performance. The results showed a significant correlation between body composition and sprint ability and jump performance in male badminton players, but not in female players. The findings indicate that changes in body composition can significantly affect the performance level of badminton players.
INTERNATIONAL JOURNAL OF MORPHOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Estrella Armada-Cortes, Jose Antonio Benitez-Munoz, Javier Sanchez-Sanchez, Alejandro F. San Juan
Summary: This study investigated the influence of previous hamstring injury on neuromuscular fatigue in elite female soccer players during the RSA test. The findings showed that players with previous hamstring injury had impaired performance compared to uninjured players, particularly in the initial meters of the sprint and in situations of high fatigue.
APPLIED SCIENCES-BASEL
(2022)
Review
Sport Sciences
Aaron Kyles, Jon L. L. Oliver, Micheal J. Cahill, Rhodri S. S. Lloyd, Jason Pedley
Summary: This systematic review examined protocols for measuring repeated sprint ability (RSA) and recommended standardized protocols. It was found that linear and change of direction (COD) RSA tests require different protocols, with COD tests resulting in longer sprint times compared to linear tests. The recommended protocol for linear RSA includes 6 x 30 m sprints with 15 seconds of active recovery, while the recommended protocol for COD RSA includes 6 x 30 m shuttle sprints with one change of direction and a 15-second active recovery.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2023)
Article
Sport Sciences
Paul J. Byrne, Jeremy A. Moody, Stephen-Mark Cooper, Eoin Farrell, Sharon Kinsella
Summary: This study compared the short-term effects of composite training and sprint training on strength, jump, and sprint acceleration performance in hurling players. The results showed that composite training significantly improved fast stretch-shortening cycle efficiency, CMJ force, and power. Both composite and sprint training were effective in enhancing maximal strength and sprint performance in hurling players.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2022)
Article
Sport Sciences
Carlos Alix-Fages, Salvador Romero-Arenas, Giancarlo Calderon-Nadal, Agustin Jerez-Martinez, Fernando Pareja-Blanco, David Colomer-Poveda, Gonzalo Marquez, Amador Garcia-Ramos
Summary: The study found that the application of tDCS over the dorsolateral prefrontal cortex is not effective in improving sprint performance or reducing RPE during a RSA task.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2022)
Article
Sport Sciences
Chris Bishop, Paul Read, Darren Stern, Anthony Turner
Summary: This study examined the effects of soccer match-play on unilateral jumping performance and interlimb asymmetry, as well as the associations between asymmetry and external load variables. The findings showed that single-leg jump performance significantly decreased after matches, but there were no meaningful reductions in asymmetry at the group level. However, individual responses to asymmetry varied greatly. Post-match asymmetry was significantly associated with explosive distance and high-speed running.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2022)
Article
Sport Sciences
Lachlan P. James, Timothy J. Suchomel, Paul Comfort, G. Gregory Haff, Mark J. Connick
Summary: This experiment examined the changes in rate of force development (RFD) expressed under loaded jump conditions in individuals with different weightlifting abilities after training with weightlifting derivatives. The results showed that the training elicited different adaptations in rapid force production depending on the baseline weightlifting ability of the individuals.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Ryan Spencer, Paul Sindall, Kelly M. Hammond, Steve J. Atkins, Mark Quinn, John J. McMahon
Summary: A countermovement jump (CMJ) is commonly used in soccer to assess acute neuromuscular fatigue (NMF); however, jump height (JH) may be affected by changes in movement strategy and body mass (BM). This study investigated the impact of a soccer match on JH, movement strategy, and BM to inform future research on acute NMF. Results showed non-significant changes in JH, a decrease in BM, and moderate decreases in jump momentum and countermovement depth.
APPLIED SCIENCES-BASEL
(2023)
Article
Physiology
Jessica A. Calderbank, Paul Comfort, John J. McMahon
Summary: This study investigated the relationship between dive distance and jump performances as well as multijoint isometric force production. The results showed that males had stronger correlations, possibly due to their greater strength and ability to perform jumping/strength tasks to a higher standard. Enhanced jump performance and increased maximal force production may enhance dive distance in swimmers.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2021)
Review
Primary Health Care
Markel Perez-Arroniz, Julio Calleja-Gonzalez, Jon Zabala-Lili, Asier Zubillaga
Summary: This article reviewed the existing scientific literature on soccer goalkeepers, focusing on their physical characteristics, conditional and performance abilities, external load, and injury profiles. The study found that goalkeepers at higher levels tend to be taller and heavier, and factors such as sprinting, jumping, agility, and mobility play a significant role in goalkeeper performance.
PHYSICIAN AND SPORTSMEDICINE
(2023)
Article
Sport Sciences
Campbell Menzies, Neil D. Clarke, Christopher J. A. Pugh, Charles J. Steward, C. Douglas Thake, Tom Cullen
Summary: Recent research suggests that passive heating has the potential to enhance performance in sports, particularly in terms of heat acclimation and recovery. However, there is a contradiction between this research and established practices, such as the use of ice baths for recovery. A survey found that a majority of athletes and practitioners use passive heating in their sports, with recovery being the most common purpose for athletes and heat acclimation for practitioners. While some athletes perceive benefits from passive heating, there are also potential negative effects experienced by a considerable number of athletes.
SPORT SCIENCES FOR HEALTH
(2023)
Review
Chemistry, Analytical
Javier Espasa-Labrador, Azahara Fort-Vanmeerhaeghe, Alicia M. M. Montalvo, Marta Carrasco-Marginet, Alfredo Irurtia, Julio Calleja-Gonzalez
Summary: This systematic review examines the methods and variables used to measure internal load in female basketball, finding that subjective methods like rating of perceived exertion (RPE) and sensor-based methods like heart rate monitoring are commonly used. However, the lack of standardization in metrics and methods results in significant heterogeneity among studies.
Article
Hospitality, Leisure, Sport & Tourism
Albert Altarriba-Bartes, Jordi Vicens-Bordas, Javier Pena, Fernando Alarcon-Palacios, Luis A. Sixtos-Meliton, Marti Matabosch-Pijuan, Enric Gimenez-Martinez, Marco Beato, Julio Calleja-Gonzalez
Summary: This study compared the effectiveness of two different comprehensive recovery protocols in physiological, neuromuscular, and perceptual outcomes. The results showed that both protocols were equally effective in improving physical, neuromuscular, and perceptual outcomes. Therefore, elite soccer players can benefit from different combinations of recovery methods after practices or games.
INTERNATIONAL JOURNAL OF SPORTS SCIENCE & COACHING
(2023)
Editorial Material
Nutrition & Dietetics
Julio Calleja-Gonzalez
Article
Primary Health Care
Josu Barrenetxea-Garcia, Sergi Nuell, Susana Garai, Antxon Murua-Ruiz, Juan Mielgo-Ayuso, Julio Calleja-Gonzalez, Eduardo Saez de Villarreal
Summary: The study aimed to evaluate the impact of using a foam roller as a recovery tool on water polo performance. The findings showed that using a foam roller after training and matches did not benefit water polo players.
PHYSICIAN AND SPORTSMEDICINE
(2023)
Article
Chemistry, Multidisciplinary
Asaf Shalom, Roni Gottlieb, Pedro E. Alcaraz, Julio Calleja-Gonzalez
Summary: The aim of this study was to develop and assess a field test for measuring lower limb explosive power in basketball players. The test involves vertical, horizontal, and combined movements while holding the ball. The study found that the test is valid and reliable, and correlated highly with standardized tests for explosive power.
APPLIED SCIENCES-BASEL
(2023)
Article
Sport Sciences
Eduardo Saez de Villareal, Julio Calleja-Gonzalez, Pedro E. Alcaraz, Javier Feito-Blanco, Rodrigo Ramirez-Campillo
Summary: This study aimed to compare the effects of two 8-week in-season strength-training programs on handball players' physical and technical parameters. The results showed that both plyometric and eccentric-overload training improved the athletes' jumping ability, throwing speed, and other technical parameters. However, there was no significant effect on sprinting, cardiorespiratory endurance, heart rate, or blood lactate. Overall, the interventions were effective in improving the physical and technical parameters of male handball players compared to regular handball practice.
JOURNAL OF FUNCTIONAL MORPHOLOGY AND KINESIOLOGY
(2023)
Review
Sport Sciences
Alvaro Miguel-Ortega, Julio Calleja-Gonzalez, Juan Mielgo-Ayuso
Summary: Although Volleyball is widely played, there is little scientific information on how female players should design their nutritional practice. This review aims to provide concise nutritional recommendations based on recent evidence on the role of nutrition and its relationship with health and performance in female volleyball players. Adjusting the energy value of the diet is crucial for physical performance, and adequate intake of macronutrients, micronutrients, and fluid is important for optimal performance and health.
JOURNAL OF HUMAN SPORT AND EXERCISE
(2023)
Review
Rehabilitation
Asier Santibanez-Gutierrez, Julen Fernandez-Landa, Nikola Todorovic, Julio Calleja-Gonzalez, Marko Stojanovic, Juan Mielgo-Ayuso
Summary: The purpose of this systematic review and meta-analysis was to assess the impact of probiotic intake on strength and power performance in trained individuals. The study followed PRISMA guidelines and searched multiple databases for relevant studies. After applying inclusion criteria, seven studies with a total of 142 participants were included in the meta-analysis. The results showed that probiotic supplementation significantly improved strength and power performance in trained individuals.
Review
Sport Sciences
Alvaro Miguel-ortega, Julio Calleja-gonzalez, Juan Mielgo-ayuso
Summary: There is limited scientific research on the nutritional practice for female volleyball players. This narrative review provides concise nutritional recommendations, highlighting the importance of individual adjustment of diet energy value, adequate intake of macronutrients and micronutrients, and proper fluid intake. The diet of female volleyball players needs to be carefully controlled to avoid health issues related to low energy availability.
JOURNAL OF HUMAN SPORT AND EXERCISE
(2023)
Article
Sport Sciences
Julio Calleja-Gonzalez, Javier Mallo, Francesc Cos, Jaime Sampaio, Margaret T. Jones, Diego Marques-Jimenez, Juan Mielgo-Ayuso, Tomas T. Freitas, Pedro E. Alcaraz, Javier Vilamitjana, Sergio J. Ibanez, Francesco Cuzzolin, Nicolas Terrados, Stephen P. Bird, Asier Zubillaga, Thomas Huyghe, Igor Jukic, Alberto Lorenzo, Irineu Loturco, Anne Delextrat, Xavi Schelling, Miguel Gomez-Ruano, Isaac Lopez-laval, Jairo Vazquez, Daniele Conte, Alvaro Velarde-Sotres, Antonio Bores, Davide Ferioli, Franc Garcia, Xavier Peirau, Rafael Martin-Acero, Carlos Lago-Penas
FRONTIERS IN SPORTS AND ACTIVE LIVING
(2023)
Article
Sport Sciences
Pablo Perez-Ifran, Maximiliano Rial, Seifeddine Brini, Julio Calleja-Gonzalez, Sebastian Del Rosso, Daniel Boullosa, Stefano Benitez-Flores
Summary: The main aim of this study was to investigate the effects of age group on change of direction (COD) performance and its specific physical determinants among young male basketball players. The results showed significant differences in age, sexual maturation, endurance capacity, jump performances, reactive strength index (RSI), COD, repeated sprint ability (RSA), and lower-limb strength between different age groups. There were significant correlations between COD performance and physical determinants such as jumping ability and RSA performance. This study highlights the importance of considering age effects and physical determinants when planning athletic talent development for young basketball male players.
JOURNAL OF HUMAN KINETICS
(2023)
Article
Chemistry, Multidisciplinary
Alvaro Miguel-Ortega, Julen Fernandez-Landa, Julio Calleja-Gonzalez, Juan Mielgo-Ayuso
Summary: This study investigated hormone regulation in the sport performances of elite female volleyball players and found that they have higher basal levels of testosterone and cortisol compared to healthy women, with training and competition impacting hormone levels.
APPLIED SCIENCES-BASEL
(2023)
Article
Sport Sciences
Rich J. Kite, Mark R. Noon, Rhys Morris, Peter Mundy, Neil D. Clarke
Summary: This study observed the processes used for player (de)selection within a professional academy and found that quarterly subjective gradings of potential provided the best predictors for player (de)selection, although caution should be taken due to the potential for confirmatory bias.
JOURNAL OF SCIENCE IN SPORT AND EXERCISE
(2023)
