Article
Sport Sciences
Erik Wilmes, Cornelis J. De Ruiter, Bram J. C. Bastiaansen, Edwin A. Goedhart, Michel S. Brink, Frans C. T. Van der Helm, Geert J. P. Savelsbergh
Summary: During a football match simulation, hamstring maximal voluntary torque declines, which is associated with increased peak knee extension and peak combined angle during sprinting, indicating a reduced capacity of the muscles to decelerate the lower leg with fatigue.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2021)
Article
Multidisciplinary Sciences
Shahnaz Hasan
Summary: This study compared the effects of plyometric training (PT) and strength training on muscle strength, sprint, and lower limb functional performance in soccer players. It found that strength training was more effective than PT in improving muscle strength, sprint, and lower limb functional performance in male soccer players.
SCIENTIFIC REPORTS
(2023)
Article
Sport Sciences
Nick van der Horst, Remy Denderen
Summary: This study developed a uniform protocol for isokinetic strength testing in football players after ACLR and clarified the clinical interpretation of the test results. Through a Delphi consensus procedure, 42 experts reached a guideline for data collection and clinical interpretation.
SCIENCE AND MEDICINE IN FOOTBALL
(2022)
Article
Chemistry, Multidisciplinary
Jana Izovska, Mikulas Hank, Lee Cabell, Maros Kalata, David Bujnovsky, Frantisek Zahalka, Tomas Maly
Summary: This study examined the relationship between preseason strength differences and the risk of hamstring strain injury (HSI) and anterior cruciate ligament (ACL) rupture in professional soccer players. The results showed that low-angular velocity preseason testing was not associated with the occurrence of HSI or ACL injury during the season.
APPLIED SCIENCES-BASEL
(2022)
Article
Rehabilitation
Shahab Alizadeh, Javad Sarvestan, Zdenek Svoboda, Fatemeh Alaei, Petr Linduska, Peyman Aghaie Ataabadi
Summary: This study compared the hamstring to quadriceps ratios between healthy, hamstring-injured, and ACL-injured soccer players. The results showed that healthy players had higher ratios compared to players with hamstring or ACL injuries. The angle-specific analysis helped to identify the range of strength deficiency, which could be used in the design of rehabilitation protocols.
PHYSICAL THERAPY IN SPORT
(2022)
Article
Multidisciplinary Sciences
Dylan Shaun Hicks, Claire Drummond, Kym J. Williams, Roland van den Tillaar
Summary: This study aimed to determine the impact of a combined sprint training intervention using assisted and maximal sprint training methods on mechanical characteristics and sprint performance in junior Australian football players. The results showed that this training method can enhance the mechanical characteristics and performance of junior athletes in 20-meter sprints.
Article
Multidisciplinary Sciences
Antonio Jesus Sanchez-Sanchez, Luis Javier Chirosa-Rios, Ignacio Jesus Chirosa-Rios, Agustin Jose Garcia-Vega, Daniel Jerez-Mayorga
Summary: The study demonstrated that using FEMD for SEHE measurement in soccer players is reliable. The highest reliability was found in the average load at 40 cm/s, while the highest reliability for maximum load was at 20 cm/s.
Article
Sport Sciences
Enda F. Whyte, Brian Heneghan, Kevin Feely, Kieran A. Moran, Siobhan O'Connor
Summary: This study compared the effects of hip extension exercise and Nordic hamstring exercise on eccentric hamstring isokinetic strength, finding that both programs were equally effective in improving hamstring strength and could be useful in preventing hamstring injuries.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2021)
Article
Multidisciplinary Sciences
Nicholas J. Ripley, Matthew Cuthbert, Paul Comfort, John McMahon
Summary: The study aimed to observe the effects of adding the Nordic hamstring exercise (NHE) or sprinting to a lower-limb training program on modifiable risk factors for hamstring strain injury (HSI) and athletic performance. The results showed that both additional NHE and sprinting significantly improved muscle architecture and athletic performance, suggesting that incorporating multiple modalities as part of a complete resistance training program has similar benefits for reducing HSI risk and enhancing athletic performance.
Article
Sport Sciences
Thomas Gronwald, Christian Klein, Tim Hoenig, Micha Pietzonka, Hendrik Bloch, Pascal Edouard, Karsten Hollander
Summary: The study using systematic video analysis in professional male football revealed that sprinting and stretching are the main causes of acute hamstring injuries, with the biceps femoris being the most affected muscle. The research suggests that rapid movements with high eccentric demands of the posterior thigh are likely the main mechanism leading to hamstring injuries.
BRITISH JOURNAL OF SPORTS MEDICINE
(2022)
Article
Orthopedics
Connor Lee Dow, Ryan G. Timmins, Joshua D. Ruddy, Morgan D. Williams, Nirav Maniar, Jack T. Hickey, Matthew N. Bourne, David A. Opar
Summary: The study aimed to evaluate previously established risk factors for hamstring strain injuries in predicting such injuries in elite Australian football players. Results showed that older age and previous history of hamstring strain injuries were associated with an increased risk of injuries, while factors such as height, weight, and muscle architecture were not significantly linked to injury risk in these players. Establishing cohort-specific cut points is necessary for accurate prediction and prevention of hamstring injuries in Australian football players.
AMERICAN JOURNAL OF SPORTS MEDICINE
(2021)
Article
Engineering, Biomedical
Kerem Ozgunen, Cigdem Ozdemir, Umut Adas, Abdullah Kilci, Cumhur Boyraz, Selcen Korkmaz Eryilmaz, Ozgur Gunasti, Nedim Askeri, Sadi Kurdak
Summary: This study evaluated the effects of on-season repeated sprint training with a change of direction on isokinetic strength parameters in well-trained youth soccer players. The results showed significant improvements in peak moment, work, and power values for both extensor and flexor muscle groups after the training period, suggesting that isokinetic strength enhancement may be explained with the induction of muscle hypertrophy following prolonged sprint training.
ISOKINETICS AND EXERCISE SCIENCE
(2021)
Article
Sport Sciences
Johan Lahti, Jurdan Mendiguchia, Pascal Edouard, Jean-Benoit Morin
Summary: This pilot study aimed to analyze the association between a multifactorial hamstring screening protocol and the occurrence of hamstring muscle injuries (HMI) in professional football players. The study found that no single screening test was sufficient to identify players at risk of HMI for the entire season, but low F0 was associated with increased risk of HMI when occurring closer to the moment of screening. These results suggest the potential relevance of frequent F0 testing for HMI risk reduction management.
Article
Sport Sciences
Alessandro Sancese, Luke Taylor, Greg Walsh, Erin Byrd, Anne Delextrat
Summary: This study compared the effects of in-season sprint training and Nordic hamstring exercise training on hamstring strain injury risk factors. The findings suggest that both training programs can effectively reduce the risk of injury, but through different mechanisms.
JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS
(2023)
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
Engineering, Biomedical
Damian J. Harper, Jean-Benoit Morin, Christopher Carling, John Kiely
Summary: This study investigated the reliability and sensitivity of kinematic and kinetic variables obtained from a maximal horizontal deceleration test using radar technology. The results showed that these variables had good reliability and were sensitive to detect changes in performance. This test protocol can provide new insights into an individual's maximal horizontal deceleration capabilities.
SPORTS BIOMECHANICS
(2023)
Article
Engineering, Biomedical
Nicklas Junge, Jean-Benoit Morin, Lars Nybo
Summary: Ballistic actions are crucial for generating power in sports where performance depends on contraction and movement velocities. Force-velocity-power profiling provides information about neuromuscular capabilities and vertical performance but is not well-studied in relation to horizontal movements. This study analyzed the associations between (FvP) over bar profiling and uni- and multidirectional ballistic performance tasks in high-level athletes.
SPORTS BIOMECHANICS
(2023)
Article
Engineering, Biomedical
Olivier Girard, Sebastien Racinais, Anthony Couderc, Jean-Benoit Morin, Joong Hyun Ryu, Julien Piscione, Franck Brocherie
Summary: This study describes the asymmetry in main running mechanical variables during repeated treadmill sprints in elite female athletes and examines the influence of fatigue on inter-limb differences in sprinting mechanics. The results showed that there was no noticeable difference in asymmetries for the majority of stride mechanical variables during repeated treadmill sprints in elite female Rugby Sevens players.
SPORTS BIOMECHANICS
(2023)
Article
Sport Sciences
Jace A. Delaney, Benjamin A. McKay, Jim Radcliffe, Dean T. Benton, Pierre Samozino, Jean-Benoit Morin, Grant M. Duthie
Summary: The study found that the load-velocity relationship of hill sprinting was valid and reliable under different hill gradients, with velocity decreasing as slope increased. Hills with gradients up to 17.6% did not provide sufficient resistance for optimal power development.
JOURNAL OF SPORTS SCIENCES
(2022)
Editorial Material
Sport Sciences
Grant Abt, Simon Jobson, Jean-Benoit Morin, Louis Passfield, Jaime Sampaio, Caroline Sunderland, Craig Twist
JOURNAL OF SPORTS SCIENCES
(2022)
Article
Sport Sciences
Pierre Samozino, Nicolas Peyrot, Pascal Edouard, Ryu Nagahara, Pedro Jimenez-Reyes, Benedicte Vanwanseele, Jean-Benoit Morin
Summary: The study aimed to determine the respective influences of sprinting maximal power output (PHmax) and mechanical Force-velocity (F-v) profile on sprint acceleration performance. Findings suggest that sprint acceleration performance depends mainly on PHmax, but also on the F-v profile, with an individual optimal F-v profile existing for a given PHmax. This optimal profile depends on PHmax and sprint distance, with the balance between force production capacities at low and high velocities affecting performance.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2022)
Article
Pediatrics
Mario Albaladejo-Saura, Raquel Vaquero-Cristobal, Juan Alfonso Garcia-Roca, Francisco Esparza-Ros
Summary: There are differences in kinanthropometric and physical fitness performance between adolescent male and female volleyball players, with males exhibiting higher bone and muscle-related variables, as well as strength and power production, while females excel in fat-related variables and flexibility. Age and biological maturation have a significant impact on these sex differences.
Article
Nutrition & Dietetics
Francisco Esparza-Ros, Ana Catarina Moreira, Raquel Vaquero-Cristobal, Carlos Barrigas, Mario Albaladejo-Saura, Filomena Vieira
Summary: This study found that the four different skinfold calipers had similar validity in assessing adiposity-related variables in a healthy young adult population. However, they cannot be interchanged when comparing over time or with other samples.
Article
Chemistry, Multidisciplinary
Mario Albaladejo-Saura, Raquel Vaquero-Cristobal, Juan Alfonso Garcia-Roca, Francisco Esparza-Ros
Summary: The research aimed to analyze differences in kinanthropometric characteristics and physical performance based on maturity status, finding that early maturers had higher values in kinanthropometric variables. Age, body mass, arm span, fat mass, among other variables, were the best predictors of performance in physical fitness tests.
APPLIED SCIENCES-BASEL
(2022)
Article
Environmental Sciences
Adrian Mateo-Orcajada, Raquel Vaquero-Cristobal, Francisco Esparza-Ros, Lucia Abenza-Cano
Summary: The practice of physical activity has a significant impact on body composition, physical performance, and adherence to the Mediterranean diet in adolescents. Active adolescents, regardless of weight status, have lower fat mass, higher muscle mass, better physical fitness, and greater adherence to the Mediterranean diet compared to sedentary adolescents.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Chemistry, Multidisciplinary
Malek Mecherques-Carini, Francisco Esparza-Ros, Mario Albaladejo-Saura, Raquel Vaquero-Cristobal
Summary: The study compares the agreement and differences between different formulas for estimating fat mass by anthropometry. The results show significant differences between the formulas, indicating that they are not comparable.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Multidisciplinary
David Romero-Garcia, Raquel Vaquero-Cristobal, Mario Albaladejo-Saura, Francisco Esparza-Ros, Jose Miguel Martinez-Sanz
Summary: The aim of this research was to analyze the differences in kinanthropometric characteristics and physical performance based on biological maturation, with the inclusion of covariates such as age, maturity offset, and diet. The results showed that early maturers had higher values in basic measurements, BMI, Cormic Index, muscle mass, medicine ball throw, and SJ jump. All the covariates had a significant influence on the kinanthropometric characteristics, and age and maturity offset showed significant differences in most physical tests. There were significant differences in the distribution of BMI classification among the biological maturation groups, with normal-weight grade being the most common.
APPLIED SCIENCES-BASEL
(2023)
Article
Physiology
Paul Glaise, Isabelle Rogowski, Pierre Samozino, Jean-Benoit Morin, Baptiste Morel, Cyril Martin
Summary: This study aimed to determine the relationships between force-production capacity in sprinting and opposition skill efficiency in rugby union games. The results showed that skill efficiency was strongly correlated with maximum propulsive power. Forwards' dueling, rucking, and tackling efficiency were mainly predicted by theoretical maximum force and maximum ratio of horizontal force. Backs' dueling and rucking efficiency were predicted by theoretical maximum force, while dueling and tackling efficiency were predicted by maximum ratio of horizontal force.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2023)
Article
Nutrition & Dietetics
Raquel Vaquero-Cristobal, Ana Catarina-Moreira, Francisco Esparza-Ros, Carlos Barrigas, Mario Albaladejo-Saura, Filomena Vieira
Summary: This study analyzed the evolution of skinfold readings under skinfold caliper pressure using the Lipowise PRO digital skinfold caliper. The results showed that the reading time and time to reach stability of skinfolds were influenced and varied between genders.
JOURNAL OF THE INTERNATIONAL SOCIETY OF SPORTS NUTRITION
(2023)
Article
Sport Sciences
Jean Romain Riviere, Jean-Benoit Morin, Maximilien Bowen, Matt R. Cross, Laurent A. Messonnier, Pierre Samozino
Summary: This study compared linear and curvilinear models to describe the force-velocity relationship in lower-limb acyclic extensions, using experimental data on a wide range of velocity conditions. The results showed that although the curvilinear models better fit the data, the linear model is more suitable for describing the force-velocity relationship in lower-limb acyclic extensions.
SPORTS MEDICINE-OPEN
(2023)