Introduction: Soccer is watched by hundreds of millions of fans worldwide, in more than 1.5 million teams and 300,000 clubs worldwide, by men and women, children and adults of all levels of expertise. Demanding high performance from its practitioners, achieved only with the strong scientific basis of its technicians by constantly updated research. Objective: Study the results of extensor strength training with plyometrics exercises on the motor function of soccer players' lower limbs. Methods: An experiment with 30 soccer players as research volunteers was performed by randomly dividing them into high load plyometric training group (PHL, 20% of body weight), low load plyometric training group (PLL, 10% of body weight), and control group (CON) for various physiological tests before and after training. Results: Lower limb muscle mass in the PHL group increased significantly; creatine kinase (CK) changes were not statistically significant; regarding isokinetic muscle strength performance, the PHL group showed a significant improvement in peak torque at 60°/s and 180°/s, while the PLL group obtained only a significant improvement at 180°/s. Conclusion: Plyometric exercise promoted a significant improvement in isokinetic muscle strength of the lower extremity of soccer players; its training with different weights did not cause muscle damage. A progressive training load is recommended for athletes with low muscle strength during the initial training phase. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
Introduction: With the development of contemporary soccer, it can be seen that the physical conditioning of athletes has become the gold standard for player evaluation. Objective: Analyze the effects of strength training on soccer players' physical conditioning. Methods: By combining functional strength training with traditional soccer training, the literature was compared, using the method of mathematical statistics and comparative analysis to study the influence of physical conditioning in youth soccer (n=62). Results: After the test, the difference between the control group and the experimental group was significantly enhanced (p = 0.66> 0.05), but there was no difference in effectiveness between the experimental group and the control group after 10 minutes (p = 0.03. <0.05). There was a significant difference in post-test performance between the experimental group and the control group (p = 0.04 <0.05), with emphasis on the hand-throw performance after training. Conclusion: The strength training protocol presented here had a positive impact on the physical conditioning of soccer players, especially on the agility performance of young athletes. Level of evidence II; Therapeutic studies - investigation of treatment results.
Introduction: As sports skills and attacking techniques evolved rapidly, so did sports offense and defense, requiring new techniques for improving sports performance on the field. One technique that has been empirically highlighted is braking training, with little scientific research on its practical results. Objective: Study the effects of brake training on lower limb agility in soccer players. Methods: Male soccer athletes participated in the experiment, and patients were divided into experimental and control groups, where lower limb demand and fracture resistance were tested. Results: After 8 weeks of training, the quality of sensitivity and explosive strength of the lower extremities were checked, where the experimental group showed a highly significant difference in training (P<0.01). The sensitivity index scores were all significantly changed. In the control group, there was a variation in bone density before and after exercise but little significant difference in performance. Conclusion: Compared to traditional resistance training, extending and focusing on lower limb braking training can effectively develop explosive strength and agility in soccer players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
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