Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 9 of 9
Full-Text Articles in Life Sciences
Interpreting Data Of A Repeated Sprint Test, Rafael Alkmin Reis, Denise Vaz De Macedo, René Brenzikofer
Interpreting Data Of A Repeated Sprint Test, Rafael Alkmin Reis, Denise Vaz De Macedo, René Brenzikofer
International Journal of Exercise Science: Conference Proceedings
Alterations in performance are often quantified through physical tests. However, although frequently used there are a few discussions about the reliability and interpretation of their results. The purpose of this study was to verify the reliability of a new method to access the repeated sprint ability denominated Labex-Test (LT) as well as analyzing the effect of 10 weeks of systematized training in soccer players' performance. LT consists of an uncertain number of sprints of 30m until a fall of performance of 10% is observed in relation to its initial speed. All the sprints are intercalated with 20 seconds of active …
General Modeling Of Vertical Jump Height With Countermovement Aids From Arms (Cmja) And Squat Jump (Sj) Techniques For Young Soccer Players, Tiago Volpi Braz, Leandro Mateus Pagoto Spigolon, João Paulo Borin
General Modeling Of Vertical Jump Height With Countermovement Aids From Arms (Cmja) And Squat Jump (Sj) Techniques For Young Soccer Players, Tiago Volpi Braz, Leandro Mateus Pagoto Spigolon, João Paulo Borin
International Journal of Exercise Science: Conference Proceedings
In the training of youngest soccer players, the knowledge of components of the explosive strength power as the contractile, elastic series and parallel series is fundamental in the sports preparation. Consequently, it is important to seek general models used as parameter for athletes, whether with morphofunctional characteristics, of sports preparation aspects or structure of competitive activity. So, this study aimed to seek an general model of vertical jump height with countermovement aids from arms (CMJa) and Squat Jump (SJ) techniques for young soccer players. Participants were 164 young soccer players (17.42±1.06 years) of juvenile and junior championship of Soccer Paulista …
Evaluation Of Strength Training Effects On Neuromuscular System In Soccer Players In Pre-Competitive Period, Nathália Arnosti Vieira, João Paulo Borin, Antonio Carlos Gomes
Evaluation Of Strength Training Effects On Neuromuscular System In Soccer Players In Pre-Competitive Period, Nathália Arnosti Vieira, João Paulo Borin, Antonio Carlos Gomes
International Journal of Exercise Science: Conference Proceedings
The evaluation of training programs in soccer modality in various moments of periodization is important in the sports preparation control process. So in this way, this study aimed to investigate neuromuscular adaptations during strength training in professional soccer game in pre-competitive period. 15 professional soccer players, aged between 18 and 28 years participated of this study. Initially they were submitted to explosive strength test (Squat Jump), speed resistance (RAST) and displacement velocity (10 and 30m). Two evaluations were performed: one in the beginning of the study (M1), and the other (M2) after 12 weeks. In the first 6 weeks speed …
Elastic Explosive Strength Alterations In Young Soccer Players In Preparatory Stage, Leandro Mateus Pagoto Spigolon, Tiago Volpi Braz, João Paulo Borin
Elastic Explosive Strength Alterations In Young Soccer Players In Preparatory Stage, Leandro Mateus Pagoto Spigolon, Tiago Volpi Braz, João Paulo Borin
International Journal of Exercise Science: Conference Proceedings
The explosive strength has been pointed as one of physical capacities present in decisive moments in soccer game. So, the aim of this study was to verify possible alterations in elastic explosive strength performance in ten young soccer players (16.54 ± 0.54 years; 73.10 ± 8.36 kg; 178.10 ± 7.67 cm). During the match in preparatory stage to championship, the elastic explosive strength was evaluated by vertical jump with countermovement aid from arms (CMJa), using contact plataform Jump Test® in 3 moments: before, in the interval and after game. BioEstat 5.0 software produced information in descriptive plan (mean and standard …
Competitive Modeling Of Heart Rate In Brazilian Juniors Soccer Players, Tiago Volpi Braz, Leandro Mateus Pagoto Spigolon, João Paulo Borin
Competitive Modeling Of Heart Rate In Brazilian Juniors Soccer Players, Tiago Volpi Braz, Leandro Mateus Pagoto Spigolon, João Paulo Borin
International Journal of Exercise Science: Conference Proceedings
The heart rate (HR) has been used as indicator of competitive actions intensity in soccer players. The aim of this study was to analyze the competitive modeling of HR in eight brazilian juniors soccer players (18.84 ± 1.04 years; 71.19 ± 8.60Kg; 177.25 ± 6.04 cm) during a preparatory stage game. All were evaluated with Polar® heart rate monitor Team System model in five moments: warm-up (16min and 40s), recovery (8min and 15s), 1st half (48min), interval (7min and 45s), 2nd half (45min and 30s), and the heartbeats saved every 5 seconds. After collection, the data were kept in computational …
Changes In Heart Rate And Blood Pressure In Sub-18 Soccer Players Tested With Running-Based Anaerobic Sprint Test, João Bartholomeu Neto, Cláudio De Oliveira Assumpção, Ricardo Yukio Asano, Marco Antonio De Freitas Souza
Changes In Heart Rate And Blood Pressure In Sub-18 Soccer Players Tested With Running-Based Anaerobic Sprint Test, João Bartholomeu Neto, Cláudio De Oliveira Assumpção, Ricardo Yukio Asano, Marco Antonio De Freitas Souza
International Journal of Exercise Science: Conference Proceedings
The Running-Based Anaerobic Sprint Test (RAST) is an important tool for prescribing and monitoring training. The aim of this study was to evaluate cardiovascular changes by the variables heart rate and blood pressure in soccer players tested with RAST. A trial with 20 soccer players who trained daily and participated in sub-18 soccer championships. The heart rate (HR) was collected at rest (before warming) and right after the end of the test, as well as the systolic (SBP) and diastolic (DBP) blood pressure. For statistics it was used the paired t-test with p<0.05. The collected data show that the values at resting time point can be considered normal for healthy young people and after the test it was observed that the HR and SBP increased significantly as compared with resting time, and the DPB presented no statistically changes. Conclusion: The results showed that the cardiovascular changes occurring in the RAST test, which is an effort with anaerobic features, are similar to changes in high-intensity aerobic efforts.
Comparative Study Of Injury Incidence In Soccer Players During Regional Games Of Sertãozinho – 2006 And Jaboticabal – 2008, Luiz Fernando Approbato Selistre, Luciano Maia Alves Ferreira, Oswaldo Stamato Taube, Edson Alves Barros Jr.
Comparative Study Of Injury Incidence In Soccer Players During Regional Games Of Sertãozinho – 2006 And Jaboticabal – 2008, Luiz Fernando Approbato Selistre, Luciano Maia Alves Ferreira, Oswaldo Stamato Taube, Edson Alves Barros Jr.
International Journal of Exercise Science: Conference Proceedings
Soccer is one of the most popular and practiced sports in the world. This sport has been changed over the years and instead of emphasis on technique, currently the physical components are more favored, increasing the injury risk. Regional Games were created to stimulate young athletes and sports practice. The aim of this study was to perform a comparative epidemiological survey of male sub-21 soccer players injuries in the Regional Games of 2006 and 2008. This is an epidemiological and comparative study of analytical type. Records of assessment used at Regional Games of Sertãozinho 2006 and Jaboticabal 2008 were consulted. …
Caffeine Supplementation And Intermittent Exercise: Effects On White Blood Cells, Marco Machado, Felipe Sampaio- Jorge, Juliano G. Barreto, Rodrigo A. Lazo-Osorio
Caffeine Supplementation And Intermittent Exercise: Effects On White Blood Cells, Marco Machado, Felipe Sampaio- Jorge, Juliano G. Barreto, Rodrigo A. Lazo-Osorio
International Journal of Exercise Science: Conference Proceedings
Caffeine is a common substance in the diets of most athletes and it is appearing in energy drinks, sport gels, alcoholic beverages and diet aids. The effects of caffeine ingestion prior to endurance training have been extensively studied. However, less is known concerning the effects of caffeine ingestion prior to intermittent exercise. The purpose of this study was to evaluate the effect of caffeine ingestion prior to intermittent exercise on white blood cells in soccer players. 15 professional soccer players completed a double-blind, placebo-controlled experiment. Forty-five minutes before exercise all subjects received 5.5 mg.kg-1 of caffeine (E+C, n=8) or placebo …
Isokinetic Knee And Hip Torque In Ncaa Division I Female Soccer Athletes, Kelly A. Brooks, Samantha L. Clark
Isokinetic Knee And Hip Torque In Ncaa Division I Female Soccer Athletes, Kelly A. Brooks, Samantha L. Clark
International Journal of Exercise Science: Conference Proceedings
PURPOSE: The purpose of this study was to determine the relationship of isokinetic knee and hip torque to various physiological characteristics and soccer-specific variables, such as kick velocity (KV) and body fat percentage (BF%) specifically in female collegiate soccer players. METHODS: Anthropometric data was collected on 22 division I female soccer players. Maximum strength, explosive lower body power, agility, acceleration, speed, and aerobic power were tested. Anthropometric data was collected on age, height, weight, and body composition. Body composition was assessed using the Jackson-Pollock 3- Site Skinfold Formula procedure using the Lange skinfold calipers. A one repetition max (1-RM) squat …