Journal
BIOMEDICAL ENGINEERING ONLINE
Volume 18, Issue -, Pages -Publisher
BMC
DOI: 10.1186/s12938-019-0695-5
Keywords
Echo-localization; Visually impaired people; Sports rehabilitation
Categories
Funding
- National Commission for Scientific and Technological Research of Chile [CONICYT-PCHA/Doctorado Nacional/2015-21150694, Basal FB0008]
- DGIIP-UTFSM
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BackgroundSeveral countries encourage the practice of football for rehabilitation and social inclusion purposes. For visually impaired people, football is purely sound-based, where the ball and the players are constantly emitting sounds for localization purposes in the field. However, the task of shooting the ball requires of a non-visually impaired extra person, behind the goal (known as caller), whom is punching the four corner of such goal to help the athletes. The presence of the caller restricts the self-sufficiency of the players. This work addresses such problem, by presenting a goal for visually impaired players with the aim of enhancing their self-sufficiency.Materials and methodsThe electronic goal is designed with four functionalities for training purposes, by returning sound-based feedback of its position and the places where the ball has impacted. The system is validated with seven volunteers from Chilean Football Soccer National Team. A questionnaire was answered by the players before and after the tests to statically validate the proposed device.ResultsThe presented system is portable and designed following a modular criterion suitable for visually impaired people self-assembling. From a test of 350 shootings, the electronic goal showed to enhance the shooting assertiveness from 82 to 92%, and the accuracy from 20 to 56% compared to the traditional caller.ConclusionsThe electronic goal showed to enhance the self-sufficiency of athletes, by improving their assertiveness in shooting training. Nevertheless, and according to the responses to the questionnaires, the system needs improvements in its portability and handling.
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