C8: Sports Biomechanics & Human Performance

A SMART SOCCER SENSOR MAT TO IMPROVE AND TEACH SOCCER KICK TECHNIQUE


Luis Hernandez Barraza1, Yeow Chen-Hua1,2 

 

1National University of Singapore, Singapore;
2Advanced Robotics Center, National University of Singapore, Singapore


Wearable technology has become very popular in the sports industry, and soccer is one of the sports which has been benefited from the improvements in this area. The present study sought to develop a smart training mat sensor suite to improve soccer players’ kicking technique. Three amateur players with (23±2 years old; 1.70±0.05m; 80.0±7.5 kg) were recruited and instructed to perform soccer kick in the gait laboratory. The sensor mat was made of forty-nine force resistive sensors (Interlink, USA) each of them with a sensitive area of 6.25 cm2 . Force sensing resistors are thin isometric force sensors whose resistance decreases with the force applied in a non-linear way. As a visual feedback indicator, five hundred eighty-eight LEDs were used on the mat to indicate trough different colors the force applied. As well, besides to measure forces, our sensor mat can show different foot placement to teach the players on how to step correctly. As validation method, the values obtained from the mat were compared to the vertical force of the force plate (AMTI, UK). From the comparison, we obtained an accuracy of 92% respect the force plate values. The maximal vertical forces obtained were 1.0(±0.1) %BW, 1.1(±0.1) %BW and 1.3(±0.2) %BW. Our results were similar by those reported in the literature.  Our invention showed to be an accurate and portable sensor suite which can help the coaches to  monitor the performance of their players, and as well, it can help younger soccer players to learn about how to do a proper soccer kick and, over the time increase their skills.

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