Background: To study the relation between fitness test and kicking velocity in young soccer players, which has not been previously studied in this group of age.
Methods: Ninety-eight Under-11 soccer players who belonged to two professional Spanish clubs and two amateur clubs were subjected to sprint test (15 and 30 meters), countermovement jump (CMJ), estimation of maximal oxygen intake (VO2max), kicking velocity test, fatigue index of jump height and anthropometrical measures.
Results: Kicking velocity was significantly correlated (P<0.05) with 15-m sprint (r=-0.554) and 30-m sprint (r=-0.587), CMJ height (r=0.479), VO2max (r=0.475), body mass (r=0.311) and height (r=0.529), but not with Body Mass Index (BMI) (r=-0.011) and Fatigue Index of jump height (r=-0.05).
Conclusions: This study provides new data about correlations between kicking velocity and fitness test, establishing greater correlations between kicking velocity and other variables compared to other groups of age previously studied, suggesting high transferences between results in fitness test and kicking velocity.
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http://dx.doi.org/10.23736/S0022-4707.17.07084-0 | DOI Listing |
J Funct Morphol Kinesiol
December 2024
Institut Supérieur de Sport et de l'Éducation Physique du Kef, Université de Jendouba, Le Kef 7100, Tunisia.
In karate, the ability to execute high-velocity movements, particularly kicks and punches, is heavily dependent on the strength and power of the lower limb muscles, especially the knee extensors. As such, this study aimed to evaluate the effects of an 8-week eccentric training program utilizing the reverse Nordic exercise (RNE) integrated into karate training compared with regular karate training only on measures of physical fitness in youth karate athletes. Twenty-seven youth karatekas were recruited and allocated to either RNE group (n = 13; age = 15.
View Article and Find Full Text PDFSports (Basel)
November 2024
Department at University Hospital Olomouc, Palacký University Olomouc, 779 00 Olomouc, Czech Republic.
Maximal athletic performance can be limited by various factors, including restricted respiratory function. These limitations can be mitigated through targeted respiratory muscle training, as supported by numerous studies. However, the full potential of respiratory training in competitive finswimming has not been fully investigated.
View Article and Find Full Text PDFSports Biomech
November 2024
Faculty of Sports and Health Science, Fukuoka University, Jonan-ku Fukuoka, Japan.
The study aimed to clarify the difference in the support leg dynamics and its mechanical role in producing the interaction torque acting on the kicking leg knee between female and male soccer players. Three-dimensional motion (500 Hz) and the ground reaction force (1000 Hz) were captured during the instep kicking of twenty female and twenty male players. Powers due to the support leg knee joint torque and the interaction torque were computed.
View Article and Find Full Text PDFJ Sports Sci
October 2024
Graduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
This study investigated the kinematic (KmS) and kinetic (KnS) strategies integrating the trunk and lower limbs to achieve maximal kicking performance. Although strategies consisting of individual joint movements or moments are known, strategies combining joint movements or moments of the trunk and lower limbs have been less studied. Fifty adult amateur soccer players were assessed.
View Article and Find Full Text PDFJ Biomech
November 2024
Faculty of Sport and Health Science, Ritsumeikan University, Japan.
Swimmers primarily increase their forward velocity through lower limb motion in breaststroke, making the breaststroke kick crucial for optimizing race times. Recent studies have highlighted the generation of vortices around the swimmer's entire body to propel forward during swimming. However, the investigation of vortex generation during breaststroke kicks remains unexplored.
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