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Effect of Competitive Anxiety on Passing Decision-Making in Under-17 Soccer Players/ Efeito da Ansiedade Competitiva Sobre a Tomada de Decisao do Passe em Atletas de Futebol da Categoria Sub-17/ Efecto de la Ansiedad Competitiva Sobre Toma de Decisiones de lo Pase en los Jugadores de Futbol de la Categoria Menores de 17 Anos.

Soccer is a collective sport of the intermittent type, and makes high demands on energy, due to the motor actions undertaken, which vary in intensity and duration during the game (Pedro, Machado, & Nakamura, 2014). Its technical-tactical actions do not have a constant pattern during the games, as a result of which the motor activities during the match are abruptly interrupted and then re-begun various times in a random manner (Muller, Garganta, Santos, & Teoldo, 2016). In this regard, soccer is indicated as a dynamic, highly unpredictable sport: requiring appropriate decision-making in order to obtain success (Romeas, Guldner, & Faubert, 2016).

Decision-making relates to a skill of the human brain in extracting information from the visual scenario. This information is considered essential for good performance in unpredictable sports (Romeas et al., 2016). According to Afonso, Garganta and Mesquita (2012), decisionmaking depends on visual perception, focusing attention, anticipation and memory. Equally, it is worth emphasizing that motor action can influence the result of the decisionmaking (Lopes, Magalhaes, Diniz, & Albuquerque, 2016), mainly in young athletes.

Normally, the cognitive component of athletes' decisionmaking ("what to do") is evaluated through the use of videos, which simulate situations which occur during a game. This type of analysis is known as "declarative tactical knowledge" (Matias & Greco, 2011). However, according to Memmert and Harvey (2008), decision-making involves both the cognitive and motor aspects. This being the case, the recommendation is to use a test which simulates game situations and also involves motor actions--for example, the Game Performance Assessment Instrument (GPAI), developed by Oslin, Mitchell and Griffin (1998), and adapted by Memmert and Harvey (2008).

Researchers state that athletes' decision-making is mainly developed during the phase of adolescence (Borges, Avelar, & Rinaldi, 2015). Hence, it is necessary to identify the intervening factors in athletes' decision-making when they are still at a relatively young age--as, for example, in the junior teams. As a result, the use of aspects that positively influence athletes' decision-making, as well as the inhibition of factors which negatively affect it, could be implemented in the junior teams, with the premise of optimizing performance and decision-making in the sport. On the one hand, the scientific literature has shown that the situational methods employed in fields with reduced space are efficient for strengthening decision-making in athletes of collective sports characterized by unpredictability (Davids, Araujo, Correia, & Vilar, 2013; Romeas et al., 2016). On the other hand, it seems that some emotions--including anxiety --can negatively affect athletes' decision-making (Gonzaga, Albuquerque, Malloy-Diniz, Greco, & Costa, 2014).

Competitive anxiety, in its turn, is indicated as a multifactorial construct relating to the behavior regarding the stress response and a tendency to perceive stressing situations (Fernandes, Nunes, Raposo, & Fernandes, 2014; Fernandes, Nunes, Raposo, Fernandes, & Brustad, 2013; Fortes, Lira, Lima, Almeida, & Ferreira, 2016). According to the Multidimensional Theory of Competitive State Anxiety (Martens, Vealey, & Burton, 1990), anxiety has three components: cognitive, somatic, and self-confidence. Cognitive anxiety refers to the negative thoughts and expectations related to performance. Somatic anxiety relates to the affective and physiological elements of the experience of anxiety which directly affect the autonomous nervous system. Self-confidence refers to the conviction and feeling of ability to carry out actions required in the competition. To the best of our knowledge, studies have not yet been found evaluating the effect of these three components of competitive anxiety in decision-making in undertaking the basics of soccer in young athletes. Among these foundations, one recent study showed that the number of passes increased by 35% in the world cup soccer finals between 1966 and 2010; and that the successful teams in World Cup matches passed the ball more often (Wallace & Norton, 2014).

From the practical point of view, this type of investigation could reveal the effect of competitive anxiety on passing decision-making in young soccer players. In this regard, the findings could be of extreme importance for coaches in this sport. In the light of these notes, the study aimed to analyze the effect of competitive anxiety on passing decision-making in young soccer players.

Considering the notes of researchers who specialize in the area of decision-making in sport (Afonso et al., 2012; Araujo et al., 2015), three hypotheses have been formulated: (a) the greater the intensity of the cognitive anxiety, the worse the performance will be in the passing decision-making; (b) the greater the intensity of the somatic anxiety, the worse the performance will be in the passing decision-making; and (c) the greater the intensity of self-confidence, the better the performance will be in the passing decision-making.

Method

Participants

This is a prospective investigation with follow-up of approximately 45 minutes, undertaken with young male soccer players. The sample was chosen non-probabilistically, being made up of 40 volunteers aged between 16 and 17 years old, participating in the Pernambuco under-17 category soccer championship. The participants belonged to four teams linked to the Pernambuco Soccer Federation. Only the outfield players who were not reserves in their teams took part in the study.

The athletes trained an average of two hours per day, four times a week. In order to be included in this research, the athletes had to: (a) have been soccer players for at least two years; (b) undertake systematic training in soccer for at least six hours per week; and (c) be enrolled in the state soccer championship in the under-17 category, organized by the Pernambuco Soccer Federation.

Instruments

The Brazilian version (Fernandes et al., 2013) of the Competitive State Anxiety Inventory (CSAI-2R) (Martens et al., 1990) was used to evaluate the athletes' competitive anxiety. The CSAI-2R is made up of 16 items which measure three subscales: cognitive anxiety, somatic anxiety, and self-confidence. The score for each subscale is calculated by summing the answers to the items for each factor, divided by the respective number of items. The dimension of intensity of the CSAI-2R was adopted as the criteria for evaluating competitive anxiety. This is provided in a four-point Likert scale, varying from 1 (nothing) to 4 (a lot). The higher the score, the greater the intensity of the competitive anxiety. The decision was made to use the dimension of intensity of the CSAI-2R because this dimension analyzes the scale of the competitive anxiety at the exact moment at which the questionnaires are filled out. The CSAI-2R has been validated for Brazilian athletes and has shown excellent psychometric properties (Fernandes et al., 2013). For the present sample, internal consistency (evaluated using the Cronbach alpha) of 0.75, 0.79 and 0.77 was identified for the subscales of cognitive anxiety, somatic anxiety, and self-confidence, respectively.

Decision-making was evaluated in a real game situation. The participants played for two halves of 45 minutes, adopting the official soccer rules. The entire game was filmed using a CANON[R] camera (model SX60). The analysis and categorization of the actions were based in the GPAI (Memmert & Harvey, 2008). The components of the passing decision-making in soccer, as proposed by Romeas et al. (2016), were adopted. Accordingly, the passing decisionmaking was considered to be appropriate when the pass was made to one of the player's team members who was not being marked at the time and: (a) either directly or indirectly set up the chance for a goal or; (b) was to a team member who was better placed than the player making the pass.

The index for passing decision-making was calculated according to the formula below, considering the changes suggested by Memmert and Harvey (2008). Each action was analyzed by two specialists who were experienced in soccer, and was classified as appropriate or inappropriate. The acceptable coefficient of agreement (kappa = 0.97; p = 0.01) was identified for the two specialists' classifications.

Decision-making index = ([a.sub.a]+ 10) / ([a.sub.a] + 10) + ([a.sub.i] + 10)

[a.sub.a] = appropriate actions

[a.sub.i] = inappropriate actions

Procedure

Data collection. A priori, the researchers responsible contacted four coaches of four under-17 category soccer teams in the State of Pernambuco. The procedures, as well as the study aims, were duly explained and authorization was requested to carry out the investigation with their athletes. Following that, a meeting was held with the soccer players in order to clarify all the investigation's ethical procedures. At this meeting, the terms of free and informed consent (TFIC) were also handed over to the players' respective coaches for them to consent to their athletes' participation. All athletes signed the terms of assent, agreeing to their voluntary participation in the investigation.

The Brazilian version of the Competitive State Anxiety Inventory (CSAI-2R) (Fernandes et al., 2013) was filled out by the athletes 45 minutes before the beginning of a match (semifinals) in the male under-17 category of the Pernambuco Soccer Championship. Following that, the athletes went on to the field to undertake their warm-up with a ball (~20 minutes' duration). After that, the teams were announced to the public, followed by the formalities which proceed a soccer match (national anthem, greeting the adversaries and the referees).

A CANON[R] camera (model SX60) was positioned on a tripod (height - 1.5 m) in the stands (~3 m above the level of the field) of the stadium. In this way, both halves (~45 min) of the Pernambuco under-17 championship soccer match were recorded. All of the investigation procedures are described in Figure 1.

The data were collected in the local of the competition (soccer stadium). The players answered the CSAI-2R before the soccer match. The young athletes received the same verbal guidance, and any doubts were settled. Following that, the athletes played a match in the Pernambuco soccer championship, which was filmed. It is emphasized that only 2 professionals (experienced in the area of coaching soccer) analyzed each player's actions of passing the ball in the soccer match.

Data analysis. The Shapiro Wilk test for assessing data distribution was undertaken. Averages and standard deviations were used for describing the variables (Decision-making index passing, CSAI-2R, training program and age). The Pearson product-moment correlation coefficient was used to relate the subscales of the CSAI-2R (cognitive anxiety, somatic anxiety and self-confidence) to the Decision-making index passing. Forward linear regression was carried out to analyze the effect of the CSAI-2R (cognitive anxiety, somatic anxiety and self-confidence) on the Decision-making index--passing. All the data were treated using the SPSS software, version 21.0 (IBM Corp., Armonk, NY, USA), adopting the level of significance of 5%.

Ethical Considerations

After receiving information about the procedures that they would undergo, the participants signed the terms of assent. The athletes' coaches signed the TFIC, agreeing with the methodological procedures of the investigation. The procedures adopted in this study complied with the rules of Resolution 466/12 of the National Health Council for research involving human beings. The project was approved by the Committee for Ethics in Research with Human Beings of the Universidade Federal de Pernambuco (CAAE--46978515.6.0000.5208).

Results

The descriptive data (CSAI-2R, the decision-making index--passing, weekly training program--weekly frequency of training x hours of training per day--and age) are shown in Table 1.

Table 2 indicates the values of correlations between the subscales of the CSAI-2R and the decision-making index passing. Negative correlations were found for the "cognitive anxiety" and the "somatic anxiety" subscales of the CSAI-2R with the decision-making index. In contrast, a positive correlation was found between the "self-confidence" subscale of the CSAI-2R and the decision-making index.

The linear regression model may be observed in Table 3. The results indicated a significant influence of cognitive anxiety ([F.sub.(1,39)] = 53.01; Wilks's Lambda = 0.89; [R.sup.2] = 0.20; p = 0.001), inserted in block 1. An increase was revealed in the scale of the influence in block 2, when somatic anxiety was included in the model ([F.sub.(2, 38)] = 69.44; Wilks's Lambda = 0.94; [R.sup.2] = 0.45; p = 0.001). Self-confidence, inserted in block 3, was also shown to influence the decisionmaking index--passing ([F.sub.(3,37)] = 78.18; Wilks's Lambda = 0.95; [R.sup.2] = 0.31; p = 0.001).

Discussion

The investigation aimed to analyze the effect of competitive anxiety on passing decision-making young soccer players. In essence, the study's findings indicated the effect of cognitive anxiety, somatic anxiety and self-confidence on passing decision-making in young soccer players, corroborating the present study's hypotheses.

Decision-making is considered to be a complex phenomenon, involving perception, anticipation, attention, memory and motor action (Afonso et al., 2012). Hence, decision-making includes both cognitive ("what to do") and motor ("how to do it") components. Soccer is indicated to be a dynamic, unpredictable sport (Muller et al., 2016), requiring appropriate decisions due to the situational changes--which are constant during the game. The fundamental principles of soccer are: passing, shooting, ball control, heading, dribbling, feinting and tackling (Praca, Custodio, & Greco, 2015). According to Memmert (2010), passing is the main foundation to be successful in soccer. It should be highlighted, however, that the soccer player, upon receiving the ball, should not have developed adequately the cognitive components of decision-making (perception, anticipation and memory) over his or her career, even if skillful in technical terms, may not choose the best passing option.

Considering passing decision-making, the present study's findings revealed the effect of cognitive anxiety. Block 1 of the regression model explained 20% of the variance in passing decision-making. This result indicates that 20% of the decisions made in executing the pass were influenced by the negative expectations in relation to performance as expressed shortly before the match. Indeed, studies have demonstrated that cognitive anxiety is related negatively to sporting performance (Patel, Omar, & Terry, 2010; Rathschlag & Memmert, 2015; Sonoo, Gomes, Damasceno, Silva, & Limana, 2010). It may be that negative thoughts regarding sporting performance prior to the occurrence of the competition, in some way, may inhibit the speed at which the player processes information, which may reduce the probability of making the appropriate decision. An alternative explanation for the results of block 1 of the linear regression model relates to the possibility of negative thoughts shortly before the competition diminishing the player's focus of attention, which, in its turn, may allow irrelevant stimuli associated with the game (for example, the fans and the media) to disrupt passing decision-making.

Regarding somatic anxiety, the present study's results explained 25% of the variance in the passing decisionmaking. This finding means that 25% of the decisions in carrying out the pass were influenced by the responses of the autonomous nervous system (for example, cardiac frequency, sweating, muscle tension and body temperature) directed at the stressor event (for example, the semifinals of the Pernambuco under-17 category soccer championship). Studies have indicated an inversely proportional relationship between somatic anxiety and sporting performance (Millet, Groslambert, Barbier, Rouillon, & Candau, 2005; Silva et al., 2014). Indeed, somatic anxiety entails an increase in cardiac frequency and muscle tension (Andersen & Calatayud, 2016; Zhang, Si, Chung, & Gucciardi, 2016). Scientific findings have demonstrated that increase in cardiac frequency before and/or during a competitive event can cause overload of the cardiovascular system, with negative repercussions in the athletes' performance (Medeiros, Tonello, Gasparini, Foster, & Boullosa, 2016). Likewise, increase in muscle tension before the competition can cause fatigue to begin earlier, resulting in impairment of the athletes' performance (Martens et al., 1990). It is highlighted that physiological fatigue is closely related to mental fatigue (Zhang et al., 2016). In this regard, both cardiovascular overload and muscle tension can--even if indirectly--diminish the athletes' cognitive performance, which, in a certain way, may explain the findings of block 2 of the regression model in the present study.

Self-confidence, in its turn, explained 14% of the variance in the passing decision-making. This result reveals that 14% of the decisions behind the passes were influenced by the self-confidence as measured before the competition. The theoretical model of Martens et al. (1990) indicates a linear and positive relationship with sporting performance, partly corroborating the findings of block 3 of the regression model. Patel et al. (2010) evidenced that athletes with high levels of self-confidence obtained better sporting results. Furthermore, the findings of the study of Fernandes et al. (2014) indicated that self-confidence was closely related to the performance of amateur athletes. In this regard, it seems that the athlete's level of self-confidence may cause a positive effect in his or her competitive performance. However, above all, it is emphasized that none of the above-mentioned studies (Fernandes et al., 2014; Patel et al., 2010) analyzed the relationship of self-confidence with cognitive performance.

Although the design of the present investigation was unprecedented with young soccer players, the results must be analyzed with caution, considering that the study has limitations, which must be mentioned. No instrument was used for measuring the physiological indicators of somatic anxiety (for example, cardiac frequency and electromyography). Hence, it cannot be stated that the athletes' autonomous nervous systems were highly activated prior to the match, even if high scores were shown in the CSAI-2R. Neither were the technical movements in the undertaking of the pass controlled for. In this regard, performance in the GPAI test must be analyzed with care, given that some passes may have been interpreted as inappropriate due to the incorrect use of the technique, although the decision made (cognitive component of the decision-making) may have been appropriate.

The present study's findings allow one to conclude that anxiety may be considered to be an intervening factor in passing decision-making of young male soccer players. From the practical point of view, the present study indicates that cognitive and somatic anxiety may prevent the young soccer player from appropriate passing decision-making during the competition.

doi:http://dx.doi.org/10.1590/1982-4327e2820

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Leonardo de Sousa Fortes is a Professor of the Programa de Pos-Graduacao em Educacao Fisica of the Universidade Federal de Pernambuco.

Raphaella Christinne Ribeiro de Lima is a Master candidate of the Programa de Pos-Graduacao em Educacao Fisica of the Universidade Federal de Pernambuco.

Sebastiao Sousa Almeida is a full Professor of the Faculdade de Filosofia, Ciencias e Letras de Ribeirao Preto of the Universidade de Sao Paulo.

Romulo Maia Carlos Fonseca is a Professor of the Programa de Pos-Graduacao em Educacao Fisica of the Universidade Federal de Pernambuco.

Pedro Pinheiro Paes is a Professor of the Programa de Pos-Graduacao em Educacao Fisica of the Universidade Federal de Pernambuco.

Maria Elisa Caputo Ferreira is a Professor of the Universidade Federal de Juiz de Fora.

Received: Oct. 20, 2016

1st Revision: Jan. 24, 2017

Approved: Mar. 29, 2017

Leonardo de Sousa Fortes (1), Raphaella Christinne Ribeiro de Lima (2), Sebastiao Sousa Almeida (3), Romulo Maia Carlos Fonseca (1), Pedro Pinheiro Paes (1), Maria Elisa Caputo Ferreira (4)

(1) Universidade Federal de Pernambuco, Recife-PE, Brazil

(2) Universidade Federal de Pernambuco, Vitoria de Santo Antao-PE, Brazil

(3) Universidade de Sao Paulo, Ribeirao Preto-SP, Brazil

(4) Universidade Federal de Juiz de Fora, Juiz de Fora-MG, Brazil

Correspondence address: Leonardo de Sousa Fortes. Universidade Federal de Pernambuco. Programa de Pos-Graduacao em Educacao Fisica. Avenida Professor Moraes Rego, no 1235, Iputinga, Recife-PE, Brazil. CEP 50.670-901. E-mail: leodesousafortes@hotmail.com
Table 1
Descriptive values (average and standard deviation) of the
study's variables

Variables                          Average    Standard
                                              Deviation

CSAI-2R                             30.76       12.05
Decision-making Index (pass)         0.52        0.09
Weekly training program (hours)      8.33        0.71
Age (years)                         16.63        0.42

Table 2
Relationship between the subscales of the CSAI-2R and the
decision-making index

CSAI-2R subscales    Pass DMI

Cognitive anxiety     -0.44 *
Somatic anxiety       -0.42 *
Self-confidence        0.37 *

Note. CSAI-2R = Competitive State Anxiety Inventory; DMI =
decision-making index; * p < 0.05.

Table 3
Linear regression, analyzing the influence of competitive
anxiety (cognitive, somatic and self-confidence) on the
variance of the passing decision-making in soccer players

Variable             Block      B       R     [R.sup.2]

Cognitive Anxiety      1      0.11    0.44       0.20
Somatic Anxiety        2      0.15    0.67       0.45
Self-confidence        3      0.16    0.77       0.59

Variable             [R.sup.2*]       p

Cognitive Anxiety        0.19       0.001
Somatic Anxiety          0.43       0.001
Self-confidence          0.56       0.001

Note. [R.sup.2 *] = [R.sup.2] adjusted.

Figure 1. The investigation's experimental design. CSAI-2R =
Competitive State Anxiety Inventory.

Filling out      ~45 minutes prior to the start of the soccer match
of CSAI-2R

Warm-up and      Duration of ~30 minutes
formalities

Filming of       2 halves of ~45 minutes
soccer game
(CANON SX60)
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Article Details
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Title Annotation:Psychological Evaluation
Author:Fortes, Leonardo de Sousa; de Lima, Raphaella Christinne Ribeiro; Almeida, Sebastiao Sousa; Fonseca,
Publication:Paideia (Ribeirao Preto)
Article Type:Clinical report
Date:Jan 1, 2018
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