Article
Sport Sciences
Suzanna Russell, David G. Jenkins, Shona L. Halson, Laura E. Juliff, Vincent G. Kelly
Summary: The study shows that mental fatigue negatively influences physical, technical, and tactical aspects of sporting performance. International netballers experience varying levels of mental fatigue across training and competition periods, suggesting the need to monitor and manage mental fatigue during training and competition preparation.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2022)
Article
Cardiac & Cardiovascular Systems
Heidi Weberruss, Lisa Baumgartner, Frauke Muehlbauer, Nerejda Shehu, Renate Oberhoffer-Fritz
Summary: This study aimed to assess the structural and functional cardiac adaptations in young competitive athletes in relation to exercise training time, intensity, and performance. The results showed that exercise intensity and maximum aerobic capacity influenced the cardiac adaptations in young athletes, as represented by altered structural parameters but preserved cardiac function.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2022)
Article
Multidisciplinary Sciences
Yung-Sheng Chen, Filipe Manuel Clemente, Jeffrey Cayaban Pagaduan, Zachary Crowley-McHattan, Yu-Xian Lu, Chia-Hua Chien, Pedro Bezerra, Yi-Wen Chiu, Cheng-Deng Kuo
Summary: This study investigated the relationship between subjective physical exertions and wellness status during short-term overseas training camps with different tasks among elite young adult futsal players. The findings suggested that mean and sum sRPE were negatively related to wellness scores, indicating the importance of monitoring psychophysiological health using these measures during short-term OTCs.
Article
Multidisciplinary Sciences
Fabricio Eduardo Rossi, Alberto Jimenez Maldonado, Jason Michael Cholewa, Sergio Luiz Galan Ribeiro, Clara Andressa de Araujo Barros, Caique Figueiredo, Thomas Reichel, Karsten Kruger, Fabio Santos Lira, Luciele Guerra Minuzzi
Summary: The aim of this study was to investigate the metabolic and inflammatory fluctuations in two seasonal phases of badminton training, and the ability of youth badminton athletes to respond to an inflammatory challenge given by acute exercise on these markers. The results showed a major responsivity of IL-10 and IL-1Ra to a maximal exercise even at the end of an entire season, suggesting a more effective acute inflammatory response in youth badminton athletes.
SCIENTIFIC REPORTS
(2022)
Review
Orthopedics
Ryan J. Wortman, Symone M. Brown, Ian Savage-Elliott, Zachary J. Finley, Mary K. Mulcahey
Summary: The study indicates that blood flow restriction (BFR) training can improve strength, muscle size, and markers of sports performance in healthy athletes. Combining traditional resistance training with BFR may help athletes maximize athletic performance and maintain good health. Further research is needed to determine the optimal occlusive pressure for maximizing training improvements.
AMERICAN JOURNAL OF SPORTS MEDICINE
(2021)
Article
Engineering, Biomedical
Weibin Feng, Kelong Zeng, Xiaomei Zeng, Jiejia Chen, Hong Peng, Bin Hu, Guangyuan Liu
Summary: This study proposes effective physiological indicators and methods to predict physical fatigue. Through analyzing the heart rate variability signals, regression models were built to predict subjective and objective physical fatigue. The results showed that the particle swarm optimization-support vector regression had better performance in predicting subjective physical fatigue, while the extreme learning machine achieved competitive outcomes for objective physical fatigue prediction.
BIOMEDICAL SIGNAL PROCESSING AND CONTROL
(2023)
Article
Psychology, Multidisciplinary
Leonardo de Sousa Fortes, Bruno T. T. Barbosa, Arnaldo l. L. Mortatti, Alexandre Moreira, Maria E. C. Ferreira
Summary: The objective of this study was to examine the impact of mental fatigue caused by playing videogames before matches on decision-making performance in professional soccer players during a congested match schedule. Sixteen players participated in this study and performed four simulated soccer matches with 24-hour intervals. The results showed that playing videogames prior to matches impaired decision-making response time, but did not significantly affect decision-making accuracy.
CURRENT PSYCHOLOGY
(2023)
Review
Sport Sciences
Ryan Simmons, Kenji Doma, Wade Sinclair, Jonathan Connor, Anthony Leicht
Summary: This systematic review and meta-analysis examined the relationship between exercise-induced muscle damage indicators and acute training loads in semi-elite and elite athletes. The study found that athletes experienced greater muscle damage indicators in the initial phase of the preseason, and that these indicators increased with higher training loads and decreased with lower training loads.
Review
Psychology, Biological
Henrique Monteiro Lapo, Mara Patricia Traina Chacon-Mikahil, Amanda Veiga Sardeli
Summary: Different types of overloads have different effects on parasympathetic modulation to the heart of athletes. Pre-competition overload leads to lower RMSSD, indicating a loss of homeostasis. This could be explained by the presence of anxiety, stress, and higher psychological challenges during the pre-competition period, as well as the physical stress present in other types of overloads.
PHYSIOLOGY & BEHAVIOR
(2022)
Article
Mathematics, Interdisciplinary Applications
Chaohu He, Liaokun Ye, Hani Jamal Sulaimani, Wenwu Hu
Summary: The purpose of this study is to optimize the training methods of athletes and improve their competitive ability. By establishing research models and a non-linear staged training mode, the experimental results show that it effectively improves the training effect of athletes, providing a reference for the study of non-linear competitive ability training mode of sports athletes.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
(2022)
Review
Physiology
Annemiek J. Roete, Marije T. Elferink-Gemser, Ruby T. A. Otter, Inge K. Stoter, Robert P. Lamberts
Summary: Noninvasive markers in trained to professional endurance athletes can reflect a state of functional overreaching, with changes in parameters like power output, heart rate, and perceived exertion. Functional overreaching is characterized by specific changes in performance tests and standardized submaximal tests, with certain markers like HR-variability parameters not being reflective of this state.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2021)
Article
Nutrition & Dietetics
Melike Nur Eroglu, Celia Rodriguez-Longobardo, Ana Ramirez-Adrados, Clara Colina-Coca, Silvia Burgos-Postigo, Olga Lopez-Torres, Valentin E. Fernandez-Elias
Summary: This study evaluated and compared the effects of 24-hour intermittent fasting on the physical performance of female CrossFit athletes. The results showed that fasting did not impair exercise performance or negatively affect physiological parameters in these athletes.
Article
Rehabilitation
Alison Oliver, Matthew Driller
Summary: The study suggests that intermittent sequential pneumatic compression may have some benefits for perceptual recovery measures immediately after and 24 hours after high-intensity wheelchair activity, with negligible effects on performance recovery.
AMERICAN JOURNAL OF PHYSICAL MEDICINE & REHABILITATION
(2021)
Article
Multidisciplinary Sciences
Chenhao Tan, Jinhao Wang, Guohuan Cao, Yelei He, Jun Yin, Yudan Chu, Zhizhong Geng, Longji Li, Jun Qiu
Summary: This study analyzed the changes in fatigue, sleep, and mood in athletes returning to training after COVID-19 Omicron strain infection for approximately 1 month. The results showed that physical fatigue initially decreased but increased with prolonged training, while cognitive fatigue remained unchanged. Sleep quality improved rapidly after the start of training but remained stable over time. Depression levels continued to decline, while anxiety levels took longer to reduce. Stress levels decreased rapidly at the beginning of training but did not change with prolonged training. In conclusion, returning athletes experienced positive effects on fatigue, sleep, and mood, and it is important to assess and intervene in anxiety during the short-term period and continue monitoring fatigue levels and implementing recovery interventions in the long run.
Article
Sport Sciences
Rebecca Cross, Ric Lovell, Paul W. Marshall, Dean Norris, Jason C. Siegler
Summary: This study examined the effects of concurrent training administered 48 h versus 72 h after a match on neuromuscular function, fatigue, and soreness. The findings suggest that scheduling concurrent training 48 h after a match can aid in fatigue recovery and prevent negative impacts on subsequent match preparation.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2023)
Article
Sport Sciences
Dominik Szymski, Hendrik Weber, Gabriel Anzer, Volker Alt, Tim Meyer, Barbara C. Gaertner, Werner Krutsch
Summary: The global SARS-CoV-2 pandemic led to a lockdown in team sports. This study analyzed contact times between players in the top two men's professional football leagues in Germany using an optical tracking system. The results showed a decrease in contact times after the lockdown, and contacts in professional football rarely occurred within a two-meter radius, averaging less than 35 seconds.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2023)
Article
Sport Sciences
Sabrina Skorski, Werner Pitsch, Vanessa Barth, Max Walter, Mark Pfeiffer, Alexander Ferrauti, Michael Kellmann, Anne Hecksteden, Tim Meyer
Summary: This study evaluated the applicability and benefits of an individualisation algorithm for assessing muscle recovery in professional German soccer players and found that it offers higher diagnostic accuracy compared to population-based and group-based approaches.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2023)
Review
Sport Sciences
Jan Schimpchen, Paulo Freitas Correia, Tim Meyer
Summary: This systematic review summarizes research on submaximal protocols for monitoring changes in cardiocirculatory fitness in running-based sports. Most studies found associations between submaximal running speeds and changes in aerobic fitness, although some did not establish a relationship. The intensity of the submaximal protocols appears to be relevant, and post-exercise heart rate variability is more strongly associated with changes in aerobic fitness when the test intensity is lower. Research on post-exercise heart rate recovery has inconclusive results, while the rate of heart rate increase may be a promising metric for athlete monitoring.
INTERNATIONAL JOURNAL OF SPORTS MEDICINE
(2023)
Article
Physiology
Ludwig Ruf, Stefan Altmann, Sascha Haertel, Sabrina Skorski, Barry Drust, Tim Meyer
Summary: The purpose of this study was to examine the responsiveness of commonly used measurement instruments to a short training camp in high-level youth soccer players. The results showed that the SRSS and submaximal runs can be used to monitor acute psychophysiological responses to load, while the CMJ may provide little insight during periods of intensified training load.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2023)
Editorial Material
Sport Sciences
Tim Meyer
JOURNAL OF SCIENCE AND MEDICINE IN SPORT
(2023)
Article
Hospitality, Leisure, Sport & Tourism
Mitchell Turner, Philipp Beranek, Sofyan Sahrom, Johnny Lo, Alexander Ferrauti, Ian C. Dunican, Travis Cruickshank
Summary: This study aimed to determine the influence of time of day, chronotype, and sleep-wake behavior on internal and external outcomes of tennis matches. The results showed that evening matches had increased unforced errors and decreased winners and forced errors compared to morning and afternoon matches. The total distance and rate of perceived exertion during the second set were also lower in evening matches.
INTERNATIONAL JOURNAL OF SPORTS SCIENCE & COACHING
(2023)
Editorial Material
Sport Sciences
Tim Meyer, Jessica Orchard
JOURNAL OF SCIENCE AND MEDICINE IN SPORT
(2023)
Article
Hospitality, Leisure, Sport & Tourism
Markus Gerber, Sarah Jakowski, Michael Kellmann, Robyn Cody, Basil Gygax, Sebastian Ludyga, Caspar Mueller, Sven Ramseyer, Johanna Beckmann
Summary: This study investigated 97 adolescent elite athletes from three Swiss Olympic Partner Schools and found a negative association between higher protein consumption and severity of depressive symptoms. The study also highlighted deviations from recommended nutritional standards in elite athletes. Therefore, further research is needed to better understand the impact of dietary behavior on the mental health of athletes.
PSYCHOLOGY OF SPORT AND EXERCISE
(2023)
Review
Sport Sciences
Rilind Obertinca, Ilir Hoxha, Rina Meha, Arber Lama, Altina Bimbashi, Dorentina Kuqi, Bujar Shabani, Tim Meyer, Karen Aus der Fuenten
Summary: This systematic review and meta-analysis examines the efficacy of multi-component exercise-based injury prevention programs for football players of all ages. The results show uncertain and inconclusive treatment effects, with the majority of evidence being of low quality. More high-quality trials are needed to provide reliable evidence.
Review
Sport Sciences
Kerry Peek, Rob Duffield, Ross Cairns, Mark Jones, Tim Meyer, Alan McCall, Vincent Oxenham
Summary: Given the concern about the impact of heading on brain health, it is justified to develop guidelines that reduce the burden of heading in young and beginner players. This review explores evidence-based strategies for future heading guidelines, including game and team development, player skill development, and equipment. Possible strategies include using small-sided games, implementing technical proficiency coach frameworks, and incorporating neck exercises into injury reduction programs.
Article
Immunology
Barbara C. Gaertner, Verena Klemis, Tina Schmidt, Martina Sester, Tim Meyer
Summary: PCR testing of football players and staff in German Bundesliga and Bundesliga 2 revealed 98 positive cases, with 11 individuals showing transient low viral load positive results. These individuals were asymptomatic and did not develop long COVID. Only one out of the 11 individuals developed specific immune response, while the others did not. This finding suggests cautious interpretation and retesting of positive PCR results before initiating treatment or infection control measures.
Article
Hospitality, Leisure, Sport & Tourism
Radha Fiedler, Jahan Heidari, Tim Birnkraut, Michael Kellmann
Summary: This study with 591 German adolescent athletes aged 12-19 years from 42 different sports found that longer daily social media usage was associated with increased negative affect and dysfunctional eating patterns. Similar results were found for cognitive-behavioral symptoms of excessive media usage and mental health. Structural equation modeling revealed the mediating role of social comparison and quality of sleep in these relationships. Higher athletic performance level was related to increased social comparison, but not to quality of sleep, negative affect, and dysfunctional eating. The negative relationship between excessive media usage and sleep was stronger in competitive and elite athletes compared to recreational athletes. These findings highlight the importance of considering digital media and targeting social comparison and sleep in interventions to improve mental health in athletes.
PSYCHOLOGY OF SPORT AND EXERCISE
(2023)
Article
Sport Sciences
Karen aus der Fuenten, Tobias Troess, Abed Hadji, Florian Beaudouin, Ida Bo Steendahl, Tim Meyer
Summary: This study implemented a standardized injury database for the Bundesliga, the 1st male German football league, using publicly available media data. The study covered 7 consecutive seasons and used various media sources as the data collection method. The injury data revealed similar distributions to previous studies but with lower incidence rates compared to injury reports from medical staff.
SPORTS MEDICINE-OPEN
(2023)
Article
Sport Sciences
Jo-Lam Vuong, Antonia Edel, Paul Voss, Alexander Ferrauti
Summary: The ability for quick multidirectional accelerations is crucial in team and racquet sports, but little research has been done on different initial step patterns used by players. This study investigated four step patterns and found that the Counter Step (CS) was the most effective for lateral acceleration, while the Jab Step (JS) was better for covering shorter distances. The Gravity Step (GS) and Pivot Step (PS) showed lower kinematic efficiency, with a distal-to-proximal sequence during push-off.
JOURNAL OF HUMAN KINETICS
(2023)
