scholarly journals Metabolic Biomarkers in Young Soccer Players during a Competitive Season

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Fornel Rafael Guilherme ◽  
Kohama Eike Bianchi ◽  
Junior Carlos Eduardo Martinelli ◽  
Filho Hugo Tourinho
Keyword(s):  
Soccer Players ◽  
Competitive Season ◽  
Metabolic Biomarkers

scholarly journals Changes in Muscle Strength in U19 Soccer Players During an Annual Training Cycle

2014 ◽  
Vol 42 (1) ◽  
pp. 175-185 ◽  
Author(s):  
Michal Lehnert ◽  
Zuzana Xaverová ◽  
Mark De Ste Croix
Keyword(s):  
Peak Torque ◽  
Quadriceps Strength ◽  
Soccer Players ◽  
Muscle Action ◽  
Strength Assessment ◽  
Training Cycle ◽  
Competitive Season ◽  
Post Hoc ◽  
Testing Range ◽  
Knee Flexors

Abstract The aim of the study was to investigate the seasonal variation in isokinetic strength of the knee flexors and extensors, and conventional (H/QCONV) and functional (H/QFUNC) hamstring to quadriceps strength ratios in highly trained adolescent soccer players. The players (n=11; age 17.8±0.3) were measured at the end of the competitive season (autumn), at the beginning and the end of pre-season (winter) and during the sixth week of a new competitive season. Isokinetic peak torque (concentric and eccentric) was measured at 60°•s-1 in a sitting position with the hip flexed at 100°. The testing range of motion was set from 10 - 90° of knee flexion. The players performed a set of five maximum repetitions for both the dominant and non-dominant leg. Statistically significant differences (p<0.001) between the four seasonal measurements were noted for peak torque of the dominant leg knee flexors in concentric muscle action only. A post hoc analysis revealed a statistically significant increase in peak torque from the 1st to the 4th measurement (p<0.001; d=0.692) and from the 2nd to the 4th (p<0.01; d=0.564). The differences in the changes of peak torque of the knee flexors and extensors depending on type of muscle action and tendencies found in the H/Q ratios throughout the annual training cycle indicate that strength assessment of the knee flexors and extensors and their balance throughout the annual training cycle could be beneficial for elite male adolescent soccer players both in terms of performance and risk of injury.

Reduced High-Intensity-Running Rate in College Women’s Soccer When Games Are Separated by 42 Hours

2015 ◽  
Vol 10 (4) ◽  
pp. 436-439 ◽  
Author(s):  
William P. McCormack ◽  
Jay R. Hoffman ◽  
Gabriel J. Pruna ◽  
Tyler C. Scanlon ◽  
Jonathan D. Bohner ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Ncaa Division I ◽  
High Intensity ◽  
Recovery Period ◽  
Division I ◽  
Soccer Players ◽  
Glycogen Depletion ◽  
Total Distance ◽  
Competitive Season ◽  
Gps Devices

Purpose:During the competitive soccer season, women’s intercollegiate matches are typically played on Friday evenings and Sunday afternoons. The efficacy of a 42-h recovery period is not well understood. This investigation was conducted to determine performance differences between Friday and Sunday matches during a competitive season.Methods:Ten NCAA Division I female soccer players (20.5 ± 1.0 y, 166.6 ± 5.1 cm, 61.1 ± 5.8 kg) were monitored with 10-Hz GPS devices across 8 weekends with matches played on Friday evenings and Sunday afternoons. The players were outside backs, midfielders, and forwards. All players had to participate in a minimum of 45 min/match to be included in the study. Average minutes played, total distance covered, total distance of high-intensity running (HIR) (defined as running at a velocity equal to or exceeding 3.61 m/s for longer than 1 s), the number of HIR efforts, and the number of sprints were calculated for each match. Data for Friday vs Sunday matches were averaged and then compared using dependent t tests.Results:No differences were seen in minutes played, distance rate, or number of sprints between Friday and Sunday matches. A significant (P = .017) decrease in rate of HIR between Friday (25.37 ± 7.22 m/min) and Sunday matches (22.90 ± 5.70 m/min) was seen. In addition, there was a trend toward a difference (P = .073) in the number of efforts of HIR between Friday (138.41 ± 36.43) and Sunday (126.92 ± 31.31).Conclusions:NCAA Division I female soccer players cover less distance of HIR in games played less than 48 h after another game. This could be due to various factors such as dehydration, glycogen depletion, or muscle damage.

scholarly journals Biomarker Response to a Competitive Season in Division I Female Soccer Players

2019 ◽  
Vol 33 (10) ◽  
pp. 2622-2628 ◽  
Author(s):  
Alan J. Walker ◽  
Bridget A. McFadden ◽  
David J. Sanders ◽  
Meaghan M. Rabideau ◽  
Morgan L. Hofacker ◽  
...  
Keyword(s):  
Division I ◽  
Soccer Players ◽  
Competitive Season ◽  
Biomarker Response

scholarly journals Comparison of different ways of expressing creatine kinase concentration of soccer players during a competitive season

2016 ◽  
Vol 22 (3) ◽  
pp. 160-165
Author(s):  
Daniel Barbosa Coelho ◽  
Christian Emmanuel Torres Cabido ◽  
Victor Augusto Lemos Ciminelli ◽  
Leonardo Gomes Martins Coelho ◽  
Lenice Kapes Becker ◽  
...  
Keyword(s):  
Creatine Kinase ◽  
Soccer Players ◽  
Competitive Season

scholarly journals Comparison between two types of anaerobic speed endurance training in competitive soccer players

2016 ◽  
Vol 51 (1) ◽  
pp. 183-192 ◽  
Author(s):  
Magni Mohr ◽  
Peter Krustrup
Keyword(s):  
Randomised Controlled Trial ◽  
Controlled Trial ◽  
Soccer Players ◽  
Fatigue Index ◽  
Post Intervention ◽  
Average Speed ◽  
Repeated Sprint ◽  
Competitive Season ◽  
Randomised Controlled ◽  
Level 2

Abstract The purpose of the present study was to examine the effects of additional in-season speed endurance production versus speed endurance maintenance training regimes on performance in competitive male soccer players. In a randomised controlled trial 18 male sub-elite players were exposed to additional speed endurance production (SEP) or speed endurance maintenance (SEM) training (two additional sessions/wk for 4 weeks) during the competitive season. Players performed the Yo-Yo intermittent recovery level 2 test (YYIR2) and a repeated sprint test (RST) pre- and post-intervention. Yo-Yo IR2 performance increased (p<0.001) by 50 ± 8% and 26 ± 5% in SEP and SEM, respectively, with greater (p=0.03) improvement in SEP. RST performance improved by 2.1 ± 0.3% and 1.3 ± 0.4% in SEP and SEM, respectively, while the RST fatigue index decreased (4.4 ± 0.8 to 3.4 ± 0.5%; p<0.04) in SEP only. Peak and average speed during training were higher (p<0.001) in SEP than in SEM (24.5 ± 0.3 vs 19.2 ± 0.3 and 15.5 ± 0.1 km·h-1 vs 9.4 ± 0.1 km·h-1). Additional in-season anaerobic speed endurance production and maintenance training improves high-intensity exercise performance in competitive soccer players with superior effects of speed endurance production training.

Testosterone Concentration and Lower Limb Power Over an Entire Competitive Season in Elite Young Soccer Players

2015 ◽  
Vol 29 (12) ◽  
pp. 3380-3385 ◽  
Author(s):  
Ademir F.S. Arruda ◽  
Marcelo S. Aoki ◽  
Camila G. Freitas ◽  
Leandro M.P. Spigolon ◽  
Clovis Franciscon ◽  
...  
Keyword(s):  
Lower Limb ◽  
Soccer Players ◽  
Testosterone Concentration ◽  
Competitive Season

Impact Of Training On Autonomic Nervous System Profile In Professional Soccer Players During A Competitive Season

2011 ◽  
Vol 43 (Suppl 1) ◽  
pp. 859
Author(s):  
Camilo Povea ◽  
Jaime Albarracín ◽  
Juan A. Mosquera ◽  
Hernando Arias ◽  
Julian Mauri ◽  
...  
Keyword(s):  
Nervous System ◽  
Autonomic Nervous System ◽  
Soccer Players ◽  
Autonomic Nervous ◽  
Professional Soccer ◽  
Competitive Season
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