1,721,029 research outputs found
Preparazione fisico atletica del calciatore : allenamento aerobico e anaerobico nel calcio
Sport science come mezzo per il supporto e l'ottimizzazione della performance nel calcio
Sport science come mezzo per il supporto e l'ottimizzazione della performance nel calci
Fitness coaching in an elite football team - with special focus on individual-based approach
Maintaining the optimal fitness and health status of the elite player is crucial in sustaining high
levels of performance throughout the season. This requires careful management and thorough
attention to a number of key indicators that impact upon the players' individual training, recovery and injury prevention strategies. From a 'fitness' perspective, the focus of field-based training is to
induce the appropriate stressors to ensure the energy systems of players adapt and are best equipped
to withstand the competitive demands of the game. Thus, the comprehension of the specific
metabolic and mechanical demands that a player experiences during the most intense phases of the
game it's pivotal for maximizing the subsequent creation and delivery of individualized training
programmes. The approach is therefore to trigger the specific physiological systems, understood to
be limiting factors to performance, rather than perform holistic training whereby many mechanisms
are taxed to lesser degrees within the same drill. Using specific methods to prepare elite players for
match-play requires a higher complexity in the quantification of the workload. Consequently,
knowledge of a wide variety of physical indexes is warranted for accurate workload analyses and
detailed movement activity assessments during football practices. An in-depth information about
the training parameters taxed with certain drills enables a better understanding of the physiological
objectives to target in order to stimulate the physical components of match performance. In
conclusion, many factors need to be considered when designing a training programme for the elite
soccer player. During field based conditioning, it is paramount that training load is fully understood
and is appropriate for the intended physiological and performance adaptations. The evaluation of
current practice should encompass relevant experiences together with the rigor of applied research
The Yo-Yo intermittent recovery test : a useful tool for evaluation of physical performance in intermittent sports
The two Yo-Yo intermittent recovery (IR) tests evaluate an individual's ability to repeatedly perform intense exercise. The Yo-Yo IR level 1 (Yo-Yo IR1) test focuses on the capacity to carry out intermittent exercise leading to a maximal activation of the aerobic system, whereas Yo-Yo IR level 2 (Yo-Yo IR2) determines an individual's ability to recover from repeated exercise with a high contribution from the anaerobic system. Evaluations of elite athletes in various sports involving intermittent exercise showed that the higher the level of competition the better an athlete performs in the Yo-Yo IR tests. Performance in the Yo-Yo IR tests for young athletes increases with rising age. The Yo-Yo IR tests have shown to be a more sensitive measure of changes in performance than maximum oxygen uptake. The Yo-Yo IR tests provide a simple and valid way to obtain important information of an individual's capacity to perform repeated intense exercise and to examine changes in performance
Estimated metabolic and mechanical demands during different small-sided games in elite soccer players
The present study examined the extent to which game format (possession play, SSG-P and game with regular goals and goalkeepers, SSG-G) and the number of players (5, 7 and 10 a-side) influence the physical demands of small-sided soccer games (SSGs) in elite soccer players. Training data were collected during the in-season period from 26 English Premier League outfield players using global positioning system technology. Total distance covered, distance at different speed categories and maximal speed were calculated. In addition, we focused on changes in velocity by reporting the number of accelerations and decelerations carried out during the SSGs (divided in two categories: moderate and high) and the absolute maximal values of acceleration and deceleration achieved. By taking into account these parameters besides speed and distance values, estimated energy expenditure and average metabolic power and distance covered at different metabolic power categories were calculated. All variables were normalized by time (i.e., 4min). The main findings were that the total distance, distances run at high speed (>14.4kmh(-1)) as well as absolute maximum velocity, maximum acceleration and maximum deceleration increased with pitch size (10v10>7v7>5v5; p25.2kmh(-1)) speed distances, absolute maximal velocity and maximum acceleration and deceleration were higher in SSG-G than in SSG-P (p7v7>10v10; p<.001) in both SSG-G and SSG-P. In addition, predicted energy cost, average metabolic power and distance covered at every metabolic power categories were higher in SSG-P compared to SSG-G and in big than in small pitch areas (p<.05). A detailed analysis of these drills is pivotal in contemporary football as it enables an in depth understanding of the workload imposed on each player which consequently has practical implications for the prescription of the adequate type and amount of stimulus during exercise training
The effect of short term intense soccer specific exercise on technical performance in soccer
Performance changes after two anaerobic training regimes in soccer players
The aim of this study was to compare the effects of two anaerobic training regimes on highintensity intermittent exercise performance evaluated by the Yo -Yo Intermittent Recovery Test
level 1 (YYIR1) and 2 (YYIR2). During a 8-12-wks in-season period, nineteen sub-elite soccer players (age 24±5 years, height 177±7 cm, body mass 75±5 kg) performed either repeated sprint (RS; n=9) or speed endurance production (SEP; n=10) training twice a wk. RS training consisted of 2-4 sets of 6x5-s sprints followed by 10-15 s of passive recovery, whereas SEP training was characterized by 6-8x20-s all-out efforts interspersed with 120 s of passive recovery. After the
training period, both RS and SEP group improved significantly YYIR1 (RS: 2236 vs 2480 m; SEP: 2248 vs 2580 m; p<0.001) and YYIR2 (RS: 911 vs 1078 m; SEP: 904 vs 976 m; p<0.01) performance. According to a statistical approach based on the magnitude of change, RS induced possibly greater changes in YYIR2 performance than SEP, whereas differences in YYIR1 changes were unclear. Thus, the present results show that high-intensity intermittent performance was improved after both RS and SEP training. However, in contrast to the YYIR1, where no differences were observed between the groups, in YYIR2, the RS training-induced changes seem to be possibly greater compared to SEP. A plausible explanation could be that the RS protocol induced a higher improvement in the anaerobic energy system, which is taxed to a larger extent during the YYIR2
- …
