1,721,235 research outputs found
Ball-Handling in water polo and relationship to swimming
Full text linkWater polo is a collective sport and efforts of high intensity are rnade
in less duration and the skill that is usedfor the majority of the game is swimming.
The obiective of this study is to demonstrate that training for water polo athletes is
most effective when done always in the presence of the ball, as the ball-handling
does not adversely affect the timing. Eleven well-trained competitive athletes were
recruited and asked to swim thetestof the 3ÀAfastest (15 repsof 2ùmeters), one time
with baU, and one time without ball. Results can be read in correlation to athletes
anamnesis, that incidence of ball-handling is significant only in athletes
who have a swimming-oriented athletic history, but there are not significant
dffirences in times for athletes who have a water polo-oriented athlaic history.
Some water polo athletes realized systematically smaller times when they swim with
ball The results show as this study can help the coach to train the team for
improving the analyzed skills in different mode, creating a methodological system
training to enhance the performance. Coaches are suggested to carefully monitor
swirnming rhythm during trials, and to incrernent ball-handling in every training
condition
Example of statistical analysis of Elite Football carried out on the Chinese National team; GPS data linkage China-Iran and China-Qatar
Full text linkAbstract
In the following article we tried to enclose the improvements of the Chinese National Team from a numerical point of view, recordable in the transitional period going from the exemption of Gao Hongbo to the landing of Marcello Lippi for the 2018 Russian World Championship qualification. The data analysis takes into account both the specific aspect through the number of goal-kicks made and the ball possession, and the athletic aspect thanks to the kind concession of the Italian company K-Sport of interesting information such as the number of Km made by the two teams or the single player, or the number of acceleration at high speed, everything commented and contextualized on the basis of the game system
Session RPE and Speed High Intensity Distance in Meters (D SHI mt). A valid method to analyze training load in soccer players.
Full text linkAbstract: The purpose of this study is to verify the physiological effect and describe the intensity of training in response to internal and external loads, through Session Rate of Perceived Exertion and Speed High Intensity Distance in Meters reports, on professional soccer players engaged in weekly training (199 Sessions, 43 weeks) and league games (32 official matches). Twenty-two male professional soccer players (n = 22) of the Italian national championship under-19 are involved in this study during the season 2014-2015. Daily, Weekly and Monthly RPE (perceived exertion) Session (Borg CR-10 Scale) is a good indicator of the amount of work done: training time multiplied by perceived effort (TL = Training Time × RPE). With Arbitrary units (a.u.) produced by the individual and used for team-based data analysis, we analyze the intensity produced by workout depending on the working time. Furthermore, by means of global positioning system technology (K-Sport, Montelabbate PU, Italy 10 Hz), we statistically established the existing relationship with high intensity speed distance (> 16 km/h) and session rate of perceived exertion to describe how the internal (represented by the sum of the stresses that the body undergoes an external load; is strictly subjective) and external loads (the objective quantification of the means used in training km routes, running speed, slope, type of recovery), are correlated (r = 0.87, p <0.01, 95% CI). The statistical analysis highlights how these methods are suitable to quantifying the high-intensity work done by the soccer player during the workout and the game
Elementi determinanti correlati alla più corretta costruzione del lavoro di allenamento e della performance nello sport. L'attentivirà operativa valutata tramite l'Inattentional Blindness Paradigm nel multisport.
Full text linkThe detailed observation of modern sport has led to highlight the current characteristics that have been appropriately
studied in order to determine what may be the less used, but effective elements, on which pinpoint
work during training to achieve increasingly qualitative performance. We focused our attention and researches
to an element that we consider a little bit underestimated, that is attention, or better attentiveness
linked to actions decision making, to be taken both in a propositive sense meaningfully connected to the adversary
response. Perception remains, in our point of view, the qualifying basis of actions. Perceive external
stimuli allows us to create, therefore, targeted actions, both proposal and response, more effective in the various
situations of sport actions; in this work we investigated the influence of some variables, such as age, gender,
subjective characteristics and sports training, on the Inattentional Blindness Paradigm, in a range of sport
activities in groups of young people in the school and beyond, to determine, in the conclusive analysis, if
there was an activity that produces or not a minor manifestation of functional perceptual deficit, and to establish
in case the motivations.
L’osservazione dettagliata dello sport moderno ha fatto sì che ne emergessero le attuali caratteristiche che
sono state opportunamente studiate al fine di determinare quali possano essere gli elementi meno utilizzati
ma di reale efficacia sui quali lavorare in sede di allenamento per realizzare prestazioni sempre più qualitativamente
performanti. Noi ci siamo dedicati ad un elemento che riteniamo un pò sottostimato e cioè l’attenzione,
o meglio l’attentività legata alle scelte dell’azione da intraprendere sia in senso propositivo sia nel senso
di risposta ad un’azione dell’avversario. La percezione rimane, a nostro modo di vedere, la base qualificativa
delle azioni intraprese.
Percepire coscientemente gli stimoli esterni permette di proporre quindi delle azioni mirate, sia di proposta
che di risposta, più efficaci nelle varie situazioni di gioco sportivo; in questo lavoro abbiamo indagato l’influenza
di alcune variabili, quali l’età, il genere, le caratteristiche soggettive e la formazione sportiva, sull’Inattentional
Blindness Paradigm, in un ventaglio di attività sportive in gruppi di giovani nella scuola e non solo,
per determinare, all’analisi conclusiva, se ci fosse un’ attività che produca o meno una minor manifestazione
di deficit percettivo funzionale, e per stabilirne nel caso le motivazioni
Differences by field positions between young and senior amateur soccer players using GPS technologies
Full text linkAim. The aim of this study was to examine the player performance model (PPM) of soccer by field
position, between under 20 amateur players and over 20 amateur players, with the using of GPS (K-Sport
Universal, Italy).
Methods. The performance parameters data collection has been possible with GPS (Global Position
System). In our case were analysed 6 matches in First Category championship (Marche, Italy), corresponding at
the seventh level of Italian league and 6 games of the Juniors Provincial championship (Marche, Italy), using 10
GPS (20 Hz, K-Sport International, Montelabbate, Italy), 5 for each team, each divided into positions, to give
larger specificity to the study. Afterward data were analysed.
Results. The analysis of the data, shows that, the under 20 travelled more distance in high intensity during
a game, than over 20. But the over 20 travelled higher total distance, probably this data is influenced by the
average of minutes played, that is lower in the over 20 because they effectuated more substitutions during the
detected games.
Conclusions. It is being understood that technical and tactical qualities are the most important values for a
football player, anyway during the last years the physical performance became crucial to determinate the result
of a game. The detection of PPM helps to increase the quality of the training schedule, furthermore differentiate
the PPM even for category and field position, can make more specific and accurate the work of the coaches and
fitness trainer
Experimental approach via three different protocols on the speed agility in basketball: a case study
Full text linkAbstract:
In modern team sports, agility has become more important than in the past, because the game has
evolved and has turned faster than before. This is due to the increasingly presence of strength and condition
training and the highest care of teams on the athletes. The agility in sport is a multifactorial parameter; it is
correlated with body stability, rapidity and speed. In order to understand which parameters have more
prominence in output performance, we decided to follow a PRE-POST case study, based on three different
training protocols and a control group. The study was made following an Italian amateur team of 20 basketball
athletes (age 23 ± 4) divided in 4 groups and using the Lane Drill Test (Sigmon, 2005) to obtain objective data
Systematic Analytical Monitoring (MAS, Izzo 1988) in sports training, as an element of real control of workouts in basketball
No full textHeart rate variability and target organ damage in hypertensive patients
Full text linkBackground:
We evaluated the association between linear standard Heart Rate Variability (HRV) measures and vascular, renal and cardiac target organ damage (TOD).
Methods:
A retrospective analysis was performed including 200 patients registered in the Regione Campania network (aged 62.4 ± 12, male 64%). HRV analysis was performed by 24-h holter ECG. Renal damage was assessed by estimated glomerular filtration rate (eGFR), vascular damage by carotid intima-media thickness (IMT), and cardiac damage by left ventricular mass index.
Results:
Significantly lower values of the ratio of low to high frequency power (LF/HF) were found in the patients with moderate or severe eGFR (p-value < 0.001). Similarly, depressed values of indexes of the overall autonomic modulation on heart were found in patients with plaque compared to those with a normal IMT (p-value <0.05). These associations remained significant after adjustment for other factors known to contribute to the development of target organ damage, such as age. Moreover, depressed LF/HF was found also in patients with left ventricular hypertrophy but this association was not significant after adjustment for other factors.
Conclusions:
Depressed HRV appeared to be associated with vascular and renal TOD, suggesting the involvement of autonomic imbalance in the TOD. However, as the mechanisms by which abnormal autonomic balance may lead to TOD, and, particularly, to renal organ damage are not clearly known, further prospective studies with longitudinal design are needed to determine the association between HRV and the development of TOD
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