Review
Sport Sciences
Paul Jarvis, Anthony Turner, Paul Read, Chris Bishop
Summary: The study revealed primarily moderate associations between Reactive Strength Index (RSI) and measures of strength and endurance performance, but significant moderate negative associations with acceleration, top speed, and significant large negative associations with change of direction speed.
Article
Multidisciplinary Sciences
Gen Li, Weiliang Wu, Kai Zhen, Shiyan Zhang, Zhizhou Chen, Yuanyuan Lv, Xiao Hou, Laikang Yu
Summary: The purpose of this study was to investigate the effects of 6 weeks of different drop jump training heights on lower limb explosive and change of direction performance in collegiate Sanda athletes. The findings showed that DJ60 group had the best performance in all tests, with significant improvements compared to pre-test. The results suggest that 6 weeks of drop jump training can enhance lower limb explosive and change of direction performance, with 60 cm being the optimal drop height.
Article
Environmental Sciences
Ziga Kozinc, Jernej Plesa, Nejc Sarabon
Summary: The study found that squat jump and countermovement jump variables are moderately to highly correlated with approach jump performance, but only weakly correlated with the modified T-test and sprint time. Eccentric utilization ratio showed only small associations with performance variables.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Health Care Sciences & Services
Cem Kurt, Umut Canli, Sadullah Erdal Erdas, Luca Poli, Roberto Carvutto, Stefania Cataldi, Francesco Fischetti, Gianpiero Greco
Summary: This study aimed to compare the efficacy of vertical and horizontal plyometric training on stretch-shortening performance variables in adolescent soccer players. The results showed that neither horizontal nor vertical plyometric training had any effect on various performance variables. Therefore, a 6-week intervention of horizontal or vertical plyometric training was found to be insufficient to enhance stretch-shortening performance in adolescent male soccer players.
Article
Chemistry, Multidisciplinary
Kyeong Eun Min, YongSuk Lee, Jihong Park
Summary: The study examined the effects of static stretch and explosive contraction on quadriceps spinal-reflex excitability and latency, concluding that neither one had any significant impact on these parameters.
APPLIED SCIENCES-BASEL
(2021)
Article
Sport Sciences
Keigo Takahashi, Yusuke Shirai, Shota Oki, Yoshiharu Nabekura
Summary: Running after cycling leads to increased cardiorespiratory responses, but has no significant effect on gait parameters. The decrease in SSC function after cycling may be the cause of these changes.
JOURNAL OF SCIENCE AND MEDICINE IN SPORT
(2022)
Article
Sport Sciences
Keisuke Shibata, Kazuki Takizawa, Kazunori Nosaka, Masao Mizuno
Summary: Increasing the duration of the eccentric phase during squat exercises did not result in greater training effects compared to a program with shorter eccentric phase duration and reaching momentary failure.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2021)
Article
Sport Sciences
Jason S. Pedley, Rhodri S. Lloyd, Paul J. Read, Isabel S. Moore, Gregory D. Myer, Jon L. Oliver
Summary: This study used a novel method to categorize stretch-shortening cycle (SSC) function in youth soccer players and examined its effects on drop jump (DJ) performance. The results showed that good SSC function was associated with older and more mature players, but a portion of mature players still demonstrated poor SSC function. Players with good SSC function had significant advantages in DJ performance.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2022)
Article
Hospitality, Leisure, Sport & Tourism
Daniel Rojano Ortega, Antonio J. Berral-Aguilar, Francisco J. Berral de la Rosa
Summary: This study aimed to assess the impact of low-intensity plyometric training on kinematic/kinetic variables and vertical stiffness in young female volleyball players. The results showed significant improvements in jump height, force, power, and stiffness after the 7-week training, with strong correlations between changes in stiffness and other performance variables. The increase in vertical stiffness may not directly enhance jump performance but can contribute to quicker jumps, increasing success probabilities in volleyball games.
RESEARCH QUARTERLY FOR EXERCISE AND SPORT
(2022)
Article
Sport Sciences
Thomas M. Comyns, Jennifer Murphy, Dylan O'Leary
Summary: The purpose of this study was to examine the reliability, usefulness, and validity of field-based devices in measuring jump height during a countermovement jump. The results showed that all three field-based devices were reliable in assessing jump height, with Optojump and Output Capture devices being particularly good at detecting performance changes.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2023)
Article
Physiology
Steffen Held, Kevin Speer, Ludwig Rappelt, Pamela Wicker, Lars Donath
Summary: This network meta-analysis aimed to evaluate the effectiveness of different velocity-based and traditional 1RM-based resistance training interventions on strength and power indices in healthy participants. The analysis included 14 studies with a total of 311 participants and resulted in three networks (strength, jump, and sprint). The findings showed that low velocity loss and high velocity loss had notable effects on strength, jump, and sprint performance, with low velocity loss demonstrating favorable improvements in jump performance compared to other resistance training approaches.
FRONTIERS IN PHYSIOLOGY
(2022)
Review
Multidisciplinary Sciences
Junlei Lin, Jie Shen, Aiguo Zhou, Georgian Badicu, Wilhelm Robert Grosz
Summary: This review aimed to investigate the associations between COD performance and asymmetries on horizontal jumping, vertical jumping, and strength. The results showed that vertical jump height asymmetries were significantly associated with COD performance, while the associations between COD performance and horizontal jump distance asymmetries and strength asymmetries were weaker. Further research is needed to determine whether there is a minimum threshold of horizontal jump asymmetries that would affect COD performance.
Review
Sport Sciences
Andres Baena-Raya, Pablo Garcia-Mateo, Amador Garcia-Ramos, Manuel A. Rodriguez-Perez, Alberto Soriano-Maldonado
Summary: This systematic review aimed to analyze the force-velocity profile parameters obtained from the Samozino's method in different sports and their association with sport performance outcomes. The findings showed that high-level athletes have higher values in F-0, P-max, and V-0, and specific training programs can enhance these parameters.
JOURNAL OF SPORTS SCIENCES
(2022)
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
Multidisciplinary Sciences
Feng Wang, Zhihua Zhang, Chengliang Li, Delong Zhu, Yueying Hu, Honghao Fu, Huan Zhai, Yongjun Wang
Summary: This study compared the effects of vibration foam rollers (VFRs) and commercial portable vibration percussion devices (PVPDs) on warm-up performance in tennis players. The results showed that using VFRs can immediately enhance power, reactive strength, and change of direction performance, while using PVPDs can immediately improve reactive strength performance.
Article
Virology
Robinson Ramirez-Velez, Laiene Olabarrieta-Landa, Diego Rivera, Mikel Izquierdo
Summary: This study validates the CES-D scale in patients with persistent COVID-19 and finds that the three-factor correlated model has a good fit.
JOURNAL OF MEDICAL VIROLOGY
(2023)
Letter
Cardiac & Cardiovascular Systems
Robinson Ramirez-Velez, Nora Garcia-Alonso, Gaizka Legarra-Gorgonon, Sergio Oscoz-Ochandorena, Julio Oteiza, Mikel Izquierdo
REVISTA ESPANOLA DE CARDIOLOGIA
(2023)
Article
Sport Sciences
Regis Radaelli, Gabriel S. Trajano, Sandro R. Freitas, Mikel Izquierdo, Eduardo L. Cadore, Ronei S. Pinto
Summary: Muscle power training has been found effective in counteracting age-related declines in functional performance, but some international guidelines and scientists have questioned its safety, feasibility, and effectiveness for the older population.
Review
Sport Sciences
Filipe Manuel Clemente, Gibson Moreira Praca, Rodrigo Aquino, Daniel Castillo, Javier Raya-Gonzalez, Markel Rico-Gonzalez, Jose Afonso, Hugo Sarmento, Ana Filipa Silva, Rui Silva, Rodrigo Ramirez-Campillo
Summary: One of the most common task constraints in designing small-sided games (SSGs) is to manipulate the pitch size to change the relative area per player. This review aimed to compare the effects of smaller and larger pitch sizes on soccer players' physiological, physical, technical, and tactical responses during SSGs. The results showed that compared to smaller pitches, SSGs played on larger pitches resulted in higher heart rate, perceived exertion, total distance, high-speed running, stretch index, and surface area.
Article
Sport Sciences
Rohit K. Thapa, Filipe M. Clemente, Jason Moran, Felipe Garcia-Pinillos, Aaron T. Scanlan, Rodrigo Ramirez-Campillo
Summary: The aim of this study was to compare the effects of small-sided soccer games (SSSGs) and traditional warm-up (TWU) routines on physical fitness qualities in soccer players. The results showed that the SSSG warm-up group was more effective at improving CODS and CMJ performance, while the TWU group was more effective at improving linear speed. Soccer coaches can choose between SSSG or traditional warm-up activities according to player needs and preferences, but the superior effects of SSSG suggest it might offer greater benefits than TWU in preparing players for optimal physical output.
Review
Sport Sciences
Filipe Manuel Clemente, Rodrigo Ramirez-Campillo, Marco Beato, Jason Moran, Adam Kawczynski, Piotr Makar, Hugo Sarmento, Jose Afonso
Summary: The aims of this scoping review were to characterize the main methodological approaches to assessing individualized running speed thresholds in team sports players, compare the use of traditional arbitrary thresholds with individualized thresholds, provide an evidence gap map about the approaches and study designs used in team sports investigations, and give directions for future research and practical applications in the strength and conditioning field. The review identified 36 eligible articles out of 3,195 potentially relevant articles, with 27 focusing on the use of arbitrary and individualized running speed thresholds and 34 using individualized thresholds based on physical fitness assessments or performance. The review emphasized the need to improve the methodological aspects of using individualized speed running thresholds and consider the population and context of each study in research comparing different measures and approaches to individualization.
Article
Physiology
Hugo Alejandro Carrillo-Arango, Miguel Alejandro Atencio-Osorio, Carlos Alejandro Lopez-Alban, Edna J. J. Nava-Gonzalez, Maria Correa-Rodriguez, Mikel Izquierdo, Robinson Ramirez-Velez
Summary: Evidence suggests that acute sprint interval training (SIT) may improve metabolic responses to postprandial glucose in individuals with overweight/obesity, but results are inconsistent. This study found that acute SIT was associated with a lower respiratory quotient (RQ) and increased fat utilization while decreasing carbohydrate utilization during the postprandial period. These findings highlight the potential benefits of acute SIT in improving metabolism in people with overweight/obesity.
PHYSIOLOGICAL REPORTS
(2023)
Article
Public, Environmental & Occupational Health
Matias Henriquez, Rodrigo Ramirez-Campillo, Carlos Cristi-Montero, Raul Reina, Cristian Alvarez, Gerson Ferrari, Nicolas Aguilar-Farias, Kabir P. Sadarangani
Summary: This study examined the prevalence of physical activity levels among individuals with disabilities in Chile during the COVID-19 pandemic, as well as the associations between physical activity levels and socio-demographic variables and type of disability. The results showed that the majority of participants did not engage in physical activity, particularly women, older adults, and those with a low socioeconomic status. These findings highlight the need for further research and health promotion initiatives to improve physical activity levels among individuals with disabilities.
FRONTIERS IN PUBLIC HEALTH
(2023)
Review
Health Care Sciences & Services
Pablo Jimenez-Martinez, Rodrigo Ramirez-Campillo, Carlos Alix-Fages, Javier Gene-Morales, Amador Garcia-Ramos, Juan C. Colado
Summary: Non-communicable diseases, such as type 2 diabetes, are a major concern for public health. Adipokines, molecular biomarkers secreted by adipocytes, have been linked with type 2 diabetes and muscle function disturbances. However, the effects of resistance training interventions on adipokine levels in type 2 diabetes patients have not been systematically studied.
Article
Sport Sciences
Cristian Cofre-Bolados, Felix Vidal, Hector Gutierrez Espinoza, Ignacio Betancourt-Peters, Pedro A. Orihuela, Mikel Izquierdo
Summary: This study shows that a periodized high-intensity aerobic training program can significantly improve cardiorespiratory fitness in previously untrained octogenarians, with or without comorbidities, suggesting potential benefits for healthy aging in the long term.
Review
Endocrinology & Metabolism
Ignacio Hormazabal-Aguayo, Yasmin Ezzatvar, Nidia Huerta-Uribe, Robinson Ramirez-Velez, Mikel Izquierdo, Antonio Garcia-Hermoso
Summary: The aim of this study was to determine the global incidence of type 1 diabetes mellitus (T1DM) in children and adolescents under 20 years of age from 2000 to 2022. The study included 126 studies from 55 countries and 18 regions. The incidence rate (IR) of T1DM from 2000 to 2022 was 14.07 per 100,000 person-years, with significant variations among different regions and an increase during the pandemic period.
DIABETES-METABOLISM RESEARCH AND REVIEWS
(2023)
Article
Geriatrics & Gerontology
Eduardo L. Cadore, Mikel Izquierdo, Juliana Lopes Teodoro, Nicolas Martinez-Velilla, Fabricio Zambom-Ferraresi, Emilio Hideyuki Moriguchi, Mikel L. Saez de Asteasu
Summary: This study demonstrates that a short-term multicomponent exercise intervention for acutely hospitalized older patients can significantly improve muscle strength and power.
JOURNAL OF CACHEXIA SARCOPENIA AND MUSCLE
(2023)
Review
Sport Sciences
Exal Garcia-Carrillo, Rodrigo Ramirez-Campillo, Rohit K. Thapa, Jose Afonso, Urs Granacher, Mikel Izquierdo
Summary: This systematic review examined the effects of upper-body plyometric training (UBPT) on physical fitness in healthy youth and young adult participants. The results showed that UBPT improved maximal strength, medicine ball throw performance, sport-specific throwing performance, and upper limb muscle volume compared to control conditions. However, the certainty of evidence for these recommendations is low.
SPORTS MEDICINE-OPEN
(2023)
Review
Hospitality, Leisure, Sport & Tourism
Diego Enriquez-Enriquez, Carlos Mecina-Zapata, Hernan Riveros-Carcamo, Daniel Jerez-Mayorga, Rodrigo Ramirez-Campillo, Luis Javier Chirosa-Rios, Francisco Guede-Rojas
Summary: This study aimed to analyze the effectiveness of different warm-up strategies on short distance swimming performance. Through a literature review and statistical analysis, it was found that in-water active warm-up strategies and reducing the transition phase after in-water warm-up can significantly improve time trial performance, and additional strategies after in-water warm-up can further enhance competition performance.
RETOS-NUEVAS TENDENCIAS EN EDUCACION FISICA DEPORTE Y RECREACION
(2023)
Review
Sport Sciences
Pablo Jimenez-Martinez, Rodrigo Ramirez-Campillo, Jorge Flandez, Carlos Alix-Fages, Eneko Baz-Valle, Juan C. Colado
Summary: Oral supplementation of capsaicinoids and capsinoids has been studied for its potential impact on sports performance, specifically in resistance training and HIIT exercises. The findings suggest that capsaicin supplementation can have positive effects on strength endurance, total weight lifted, and perceived effort in healthy males, but has little impact on neuromuscular HIIT variables.
JOURNAL OF HUMAN SPORT AND EXERCISE
(2023)