Publicação
Relação entre as habilidades visuais em jogadores de futebol
| Resumo: | Introduction: The dominant sense of the human being is the vision, since through the eyes it is possible to obtain information about space and time (where and when) that will help the athlete to make a firm decision and perform an action. In this way, there is a necessity to understand the correlation between the athletes’ visual skills, to find out which skills need to be trained for better sports performance. Sports vision aims to preserve and improve visual function to increase sports performance. Consequently, several professional and amateur sportspeople are interested in the fundamental role of sports vision performance, taking up training programs and research studies to gain knowledge in this area. Aims: The objective of this study was to evaluate the correlations between visual skills in professional soccer players, and to compare and verify the existence of possible differences in visual skills among the four positions held on the field (goalkeeper, defender, midfielder, and forward). Methods: A total of 155 professional soccer players were analyzed, and no exclusion criteria were established to make available the full range of players in the workgroup. The results were collected before each training session at the club's facilities. Procedures were performed to assess visual acuity, objective refraction, ocular dominance, binocular vision, accommodation, reaction time, peripheral perception, and multiple object tracking. Results: The comparison of athletes’ position reveals no statistically differences between them at the visual abilities level. However, when only two positions are compared, some differences are observed between them for BVA (binocular visual acuity) and HFNP (horizontal phoria in near vision). There was a correlation with statistical significance between peripheral perception and binocular visual acuity (coef=0.19, p=0.02) and peripheral perception with phorias in distance vision (coef=|-0.19|, p=0.02). We observed a correlation with the statistical significance of multiple objects tracking with fusion reserves in nasal base far vision, both in rupture (coef=0.18, p=0.03) and recovery (coef=0.19, p=0.02). Observing the reaction time and the difference between rupture and recovery in the temporal basis for far vision, a correlation with statistical significance is also observed (coef=|-0.16|, p=0.04). It was found that when peripheral perception is higher, it will generate a shorter reaction time (coef=I-0.18I, p=0.03) and that better peripheral perception points to a higher value of multiple object tracking (coef=0.28, p<0.001). Conclusion: It was verified that there are correlations between several visual skills, namely among the three most important ones in soccer (reaction time, multiple objects tracking and peripheral perception). These correlations showed that an improvement in one visual skill can directly and positively influence another, upgrading sports performance. |
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| Autores principais: | Silva, Vasco Montenegro da |
| Ano: | 2022 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | português |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | Introduction: The dominant sense of the human being is the vision, since through the eyes it is possible to obtain information about space and time (where and when) that will help the athlete to make a firm decision and perform an action. In this way, there is a necessity to understand the correlation between the athletes’ visual skills, to find out which skills need to be trained for better sports performance. Sports vision aims to preserve and improve visual function to increase sports performance. Consequently, several professional and amateur sportspeople are interested in the fundamental role of sports vision performance, taking up training programs and research studies to gain knowledge in this area. Aims: The objective of this study was to evaluate the correlations between visual skills in professional soccer players, and to compare and verify the existence of possible differences in visual skills among the four positions held on the field (goalkeeper, defender, midfielder, and forward). Methods: A total of 155 professional soccer players were analyzed, and no exclusion criteria were established to make available the full range of players in the workgroup. The results were collected before each training session at the club's facilities. Procedures were performed to assess visual acuity, objective refraction, ocular dominance, binocular vision, accommodation, reaction time, peripheral perception, and multiple object tracking. Results: The comparison of athletes’ position reveals no statistically differences between them at the visual abilities level. However, when only two positions are compared, some differences are observed between them for BVA (binocular visual acuity) and HFNP (horizontal phoria in near vision). There was a correlation with statistical significance between peripheral perception and binocular visual acuity (coef=0.19, p=0.02) and peripheral perception with phorias in distance vision (coef=|-0.19|, p=0.02). We observed a correlation with the statistical significance of multiple objects tracking with fusion reserves in nasal base far vision, both in rupture (coef=0.18, p=0.03) and recovery (coef=0.19, p=0.02). Observing the reaction time and the difference between rupture and recovery in the temporal basis for far vision, a correlation with statistical significance is also observed (coef=|-0.16|, p=0.04). It was found that when peripheral perception is higher, it will generate a shorter reaction time (coef=I-0.18I, p=0.03) and that better peripheral perception points to a higher value of multiple object tracking (coef=0.28, p<0.001). Conclusion: It was verified that there are correlations between several visual skills, namely among the three most important ones in soccer (reaction time, multiple objects tracking and peripheral perception). These correlations showed that an improvement in one visual skill can directly and positively influence another, upgrading sports performance. |
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