Abstract
se Medicine 2018; 2:2 | https://doi.org/10.26644/em.2018.002 History: Received: November 2, 2017 Accepted: January 12, 2018 Published: January 16, 2018 Keywords: Sport performance analysis Talent development Vienna test system Youth ball sports © The Author(s). 2018 Open Access; licensee Sapientia Publishing Group. This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. *Correspondence: József Márton Pucsok, Institute of Sport Sciences, University of Debrecen, Egyetem tér 1, Debrecen, 4032 Hungary. E-mail address: pucsok.jozsef@sport.unideb.hu
Exercise Medicine | 2 Exercise Medicine 2018; 2:2 | https://doi.org/10.26644/em.2018.002 sports are ‘multi-factorial’ sports, consist of a multitude of psycho-physiological performance parameters. There are a number of both field and laboratory tests which are advis- able for both valid and reliable to monitor player’s perfor- mance. Therefore the objective of this systematic review was to explore how a group of laboratory tests may be used to examine sports performance in junior athletes. METHODS Review protocol We performed a systematic review of the available litera- ture using Preferred Reporting Items for Systematic reviews and Meta-analyses (PRISMA) guidelines. In order to ensure the scientific integrity of our research, we defined four inclu- sion criteria: (1) providing data concerning psycho-physio- logical analyses of youth (age 13-15) and junior (age 16-18) ball sport athletes; (2) involving elite or sub-elite level soccer, handball or basketball players; (3) published as research ar- ticles or research notes; (4) studies only in English language. Exclusion criteria were the following: (1) ball sports other than soccer, handball or basketball; (2) no relevance with our research interest and (3) were conference abstracts or proceedings as previously recommended by Knipschild [3]. In order to provide the best possible academic relevance, we used specific search terms and strings. We chose, psy- cho-physiological analysis, performance analysis, VTS, soc- cer, basketball, handball, youth and junior ball sports terms to identify literature relevant to our research. The scoping study conducted prior to the actual reviewing process, sup- ported our hypothesis, that only a few studies may be found involving youth and junior ball sport population. We created four search strings accordingly such as: psycho-physiolog- ical analysis and soccer; psycho-physiological analysis and basketball; psycho-physiological analysis and handball; VTS and sport. Our primary purpose was to provide a systematic overview of the evolution of performance analysis. The sec- ondary aim was to investigate the role of specific, multi-dis- ciplinary performance indicators to identify future talents in the sport of soccer, handball and basketball. Current exam- inations, undertaken here in University of Debrecen are go- ing to investigate youth and junior (age 13-16) athletes par- ticipating in team-sports
a systematic overview of the evolution of performance analysis. The sec- ondary aim was to investigate the role of specific, multi-dis- ciplinary performance indicators to identify future talents in the sport of soccer, handball and basketball. Current exam- inations, undertaken here in University of Debrecen are go- ing to investigate youth and junior (age 13-16) athletes par- ticipating in team-sports (soccer, basketball, and handball) and individual-sports (track and field, and judo). Our goal is to examine the relationship between various morphological, psycho-physiological performance indicators, also trying to draw practical sport-specific conclusions. We are positive that our future findings will facilitate the process of the de- velopment of individualized, specific training programs. Management of retrieved citations The number of total references retrieved was 920. We conducted a three-level screening of references monitoring their title, the abstract and finally the full-text of the selected papers. According to the inclusion and exclusion criteria, we conducted an automatic screening for duplicates, result of that, we removed 35 articles. This process was followed by further manual screening of references based on their titles and abstracts, another 803 articles were eliminated due to lack of relevance to our research interest. The remaining 82 full-text article was carefully reviewed, by the authors and co-authors, and 24 of those were further excluded from the study. Finally, we included 58 articles as a list of references to our systematic review. RESULTS Analysis of physical performance profile in youth and junior ball sport athletes According to an individual’s anthropometric measures, gender, and age, one may predict future performance. Suc- cess in the sport at any level also depends heavily on the lev- el of physical fitness [4]. Team Sports (TS) indicate games played between two opposing teams. The players interact to achieve an objective that involves team members facilitat- ing the movement of a ball or a similar item in accordance with a set of rules, to score points and to prevent the opposi- tion from scoring [5]. Most of the performance analysis and studies referring to team ball sports have been overwhelm- ingly conducted in the sport of soccer.
to achieve an objective that involves team members facilitat- ing the movement of a ball or a similar item in accordance with a set of rules, to score points and to prevent the opposi- tion from scoring [5]. Most of the performance analysis and studies referring to team ball sports have been overwhelm- ingly conducted in the sport of soccer. The reason is obvi- ous; soccer is the number one, most widely popular sport on the planet. There is a continuous debate, whether results of field tests or laboratory analysis are the preferred indicators of performance in sport. When examining the same physio- logical parameter, for example, the maximal oxygen uptake, we would preferably choose a field test for the young or ado- lescent athletes. But scientists, practitioners in the sport have to be careful selecting the right test, in order to realistically assess a performance indicator. Soccer, like other ball sports, are predominantly characterized by, high-intensity inter- mittent movements. During a game, players demonstrate periods of short, intense anaerobic and longer duration aer- obic effort. Typically, aerobic metabolism dominates in the recovery periods of the game [6]. There are certain advantages and disadvantages of field testing, which is the indirect and laboratory testing, which is the direct way of performance analysis. Field testing comes practically when testing high number of population or when necessary lab equipment is unavailable. In addition, these kinds of measurements, however, do not offer standardized conditions, may more realistically reflect the demands of a real match situation. There are certain, and obvious advan- tages of laboratory exercise testing, over field testing. One is reproducibility of a given analysis under standardized testing environment, so the entire testing procedure of an experiment or study may be duplicated [7]. VO2max is the index most widely used for assessing the aerobic fitness of soccer and ball sport players, and may be examined via vari- ous laboratory and field tests. In 2001, a study indicated that increasing aerobic capacity by 11% rised match intensity by 5% and distance completed in a match by 1800 m [8]. In a
[7]. VO2max is the index most widely used for assessing the aerobic fitness of soccer and ball sport players, and may be examined via vari- ous laboratory and field tests. In 2001, a study indicated that increasing aerobic capacity by 11% rised match intensity by 5% and distance completed in a match by 1800 m [8]. In a
Exercise Medicine | 3 Exercise Medicine 2018; 2:2 | https://doi.org/10.26644/em.2018.002 laboratory, it is far easier to provide standardized environ- ment, which facilitates the direct evaluation of any physio- logical parameter. However, since soccer incorporates inter- mittent and rapid changes in the direction of movement, the nature of tests used to verify VO2max in the laboratory con- ditions may differ from the actions observed in real match situation [9]. In soccer, the actual state of physical condition influences the execution of any technical or tactical skills [10,11]. Aerobic metabolism, dominating the game, average intensity is around the anaerobic lactate threshold. How- ever, intensity during the game is constantly changing, re- quiring a high level of aerobic and anaerobic performance [8,12]. Running economy is another variable that influences aerobic endurance performance in a player. Improvement in running economy may result in a 5% or 1000 m increase in distance covered in a match. Elevated maximal oxygen uptake seems to increase both anaerobic threshold and running economy [11]. Assessment of an athlete’s maximal oxygen consumption is possible involving either laborato- ry tests, or several kinds of field tests [13-15]. Researchers demonstrated that it is possible to determine VO2max with a soccer-specific test. Related literature suggests that none of the field tests have demonstrated a direct correlation with laboratory endurance tests [11,12,16,17]. The widely-used ‘Shuttle Run Test (SRT)’ introduced by [14] requires con- tinuous, rather aerobic effort, while the ‘Carminatti’s test (TCar)’ suggested by Carminatti et al. consist of intermittent type of movements. Reports regarding correlations between various field test results, such as the ‘SRT and TCar tests’ and the results of laboratory tests are rare and controversial [18-22]. In most cases, results of specific lab tests and field tests are not always correlating to each other. Researchers like Chamari et al., conducted the sport specific field test, called ‘Bangsbo test’, in thirty U19 elite soccer players [23]. After examining the elite junior athletes, they concluded that in this particular homogenous study population, the re- sults of Bangsbo test did not provide a satisfactory estimate of the actual maximal oxygen consumption (VO2max). The results
to each other. Researchers like Chamari et al., conducted the sport specific field test, called ‘Bangsbo test’, in thirty U19 elite soccer players [23]. After examining the elite junior athletes, they concluded that in this particular homogenous study population, the re- sults of Bangsbo test did not provide a satisfactory estimate of the actual maximal oxygen consumption (VO2max). The results correlated only with the so-called vVO2max. The term vVO2max stands for the running pace, the velocity at maximal oxygen uptake, the point, where an individual’s maximal oxygen uptake is reached [24]. There are other field tests such as the 20 m multi-stage endurance run, and the 20 m continuous progressive track run in order to estimate aerobic endurance. Players have to perform repetitive runs between two lines placed 20 m apart with a given speed, ad- justed to an audio signal. At the end of each 3 min stage, a 90 s break is applied [25]. The ‘20 m continuous progressive track run test’ is also a way to measure the value of maximal aerobic speed (vVO2max) [26]. This test is taken on a reg- ular 400 m athletic track with cones placed every 20 m. A pre-recorded soundtrack indicates when the player has to pass a cone to keep up with the exact speed. Each stage is separated by a longer sound. The beginning stage is set at 8 km/h with subsequent increase of 0.5 km/h per 1-min stage. The test is terminated when the athlete is unable to continue with the pre-set running speed. Maximal aerobic capacity or vVO2max corresponds the speed (km/h) measured at the last completed stage. Most of the previously published studies, which inves- tigated the physical fitness of elite ball sport athletes used different field tests. These studies are often contradicting and inconclusive regarding the role and importance of different physical related to the playing level and position in elite ball sports, especially in handball [27]. Some studies concluded differences in variables such as the velocity of a throw [28- 31], dynamical characteristics and the height of the jumps [32], absolute values of bench
field tests. These studies are often contradicting and inconclusive regarding the role and importance of different physical related to the playing level and position in elite ball sports, especially in handball [27]. Some studies concluded differences in variables such as the velocity of a throw [28- 31], dynamical characteristics and the height of the jumps [32], absolute values of bench press and half squat [29]. While other researchers such as [29,33] suggested no signif- icant differences in sprinting and jumping ability, in bench pressing or squatting. In contrast, observed a strong rela- tionship between morphological parameters, performance characteristics and playing position [34]. In the recent years, researchers such as monitored physical performance profile by using incremental spiroergometric test protocols as well [31,34-36]. The comprehensive search of the related databas- es resulted studies, which evaluated mostly senior handball players, members of national teams, not youth or juniors. Some researchers conducted an in-depth match analysis, and later investigated the effect of 8-week plyometric train- ing in elite adolescent handball players [37,38]. According to the results of our database searches, studies conducted in youth player population are very rare. In the sport of basketball related literature have shown that physiological demand varies regarding to the position of the player [39]. Researchers compared physical charac- teristics of players with different age and position [40]. The authors observed differences related to physical condition in that particular study population. Other researchers such as Jeličic et al. were trying to establish relationship between morphological status, situational and functional parameters of elite junior players [41]. There are only a very few studies, which provide performance profiles across anthropometric and physiological variables for a large group of elite level youth and junior basketball players [42]. Among those con- ducted a study measuring anthropometric and physiological characteristics of 125 male and 123 female junior basketball players participating at the Australian Under 16 champion- ships in 1998 [43]. The author observed differences across playing positions with regard to body composition measures (height, and body mass and arm span in particular) and to a lesser degree speed and agility. The researcher concluded,
a study measuring anthropometric and physiological characteristics of 125 male and 123 female junior basketball players participating at the Australian Under 16 champion- ships in 1998 [43]. The author observed differences across playing positions with regard to body composition measures (height, and body mass and arm span in particular) and to a lesser degree speed and agility. The researcher concluded, that the level of players may be characterized by a number of body composition (height, sitting height, and arm span) and physiological variables (speed, agility, vertical jump, basket- ball throw, and aerobic endurance). The top ranked, center players were difficult to evaluate based on test performance. In conclusion, some of the treadmill running tests applied in ball sports may not provide an accurate estimate of max- imal aerobic fitness because soccer, basketball and handball consist of multi-directional movements. Researchers such as offered a solution to these phenomena, who assessed the physiological capacity and various performance character- istics using heart-rate (HR) monitors and computerized
Exercise Medicine | 4 Exercise Medicine 2018; 2:2 | https://doi.org/10.26644/em.2018.002 movement and technical match analysis [35,44,45]. Analysis of psycho-physiological performance profile in youth and junior ball sport athletes Psychological profiling of athletes, players of thedifferent level has been always a key part of sport performance evalu- ation. It is thought, that talented athletes may own person- ality characteristics that enhance motor learning, successful participation in a competition and the training process itself. There has been an on-going dispute among participants, professionals in sport, whether ‘gifted’ and less talented play- ers may be distinguished on the basis of their ‘psychologi- cal makeup’. Researchers have not yet fully identified spe- cific personality characteristics, or an overall psychological profile, that are predictably associated to success in sport. According to studies conducted by Williams & Reilly, and Morris, there isn’t any obvious or consistent relationship be- tween personality and expertize [46,47]. Researchers have been trying to identify a single psychological inventory to help select potential players, but it is hardly likely that any single approach would be able to predict future talents. Pre- dicting performance is even more complicated in ball sports. Most previous studies on talent identification and selection in soccer mainly focused on differences between elite, sub- elite and/or recreational youth players, or examined a ho- mogeneous group of players who differed in biological mat- uration. Other studies indicated, that more mature selection groups with higher morphological measures would outper- form the late maturers on the fitness tests, but not on the specific and non-specific motor coordination tests [48,49]. Application of VTS in sport However, some parameters such as perception and de- cision making may be useful in predicting sport perfor- mance. The combination of sport specific tests, laboratory analyzes and measures of perception, decision making via for example the VTS would be worthwhile avenues for fu- ture research [43]. The VTS is a computerized collection of assessments and tests that can be used alone or combined with a test battery. The test is administered and scored by computer [50]. Schuhfried provided a complete description of psychological assessment of the VTS. The
of perception, decision making via for example the VTS would be worthwhile avenues for fu- ture research [43]. The VTS is a computerized collection of assessments and tests that can be used alone or combined with a test battery. The test is administered and scored by computer [50]. Schuhfried provided a complete description of psychological assessment of the VTS. The author listed ten different test batteries such as the ‘Two Hand Coordina- tion Test (2HAND)’, the ‘Coloured Progressive Matrices test (CPM)’ etc. may be used in main areas such as psycho-clin- ical, psycho-neurological, work and occupation, sports and leisure. Two variables the speed of perception and the speed and accuracy of reaction are critical elements in ball sport performance. In the ‘Peripheral Perception Test (PP)’, par- ticipants are asked to detect a vertical light bar which turns up intermittently on a special display. The participants of the ‘Reaction Test (RT)’ are requested to press a response key as soon as they notice the so called critical stimulus. A com- prehensive search of related databases resulted over twenty studies related to the topic. The studies investigating this area have been split into two major categories. The first group of studies investigate two different groups of people: athletes and non-athletes; athletes from the same sport who are at different levels; and athletes from various sports. The second category of studies, aimed to examine the effect of a desig- nated parameter on the performance of athletes in various VTS tests. To the author’s knowledge, there are only very few studies found, involving youth and junior athletes, especially in ball sport, utilizing VTS test protocols in the evaluation of ball sport performance [51,52]. A recent comprehensive re- view by Ong, demonstrated that VTS has a great potential to provide valuable information for athletes and their coaches to enhance sport performance [53]. Future research should focus on specifically identify VTS test protocols that are rel- evant to each particular sport. CONCLUSIONS Sport performance is a complex phenomenon depends not only on physical capacity but various psychological var- iables too. Body composition, endurance, muscle strength, power
Description
This systematic review explores psycho-physiological performance analysis in youth ball sports.