Validity of a magnet-based timing system using the magnetometer built into an IMU

Inertial measurement units (IMUs) represent a technology that is booming in sports right now. The aim of this study was to evaluate the validity of a new application on the use of these wearable sensors, specifically to evaluate a magnet-based timing system (M-BTS) for timing short-duration sports a...

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Detalles Bibliográficos
Autores: Pérez-Chirinos Buxadé, Carla, Fernández-Valdés Villa, Bruno, Morral Yepes, Mónica, Tuyà Viñas, Sílvia, Padullés Riu, Josep M, Moras Feliu, Gerard
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:TecnoCampus
Repositorio:Repositori Digital del TecnoCampus
OAI Identifier:oai:repositori.tecnocampus.cat:20.500.12367/2558
Acceso en línea:http://hdl.handle.net/20.500.12367/2558
Access Level:acceso abierto
Palabra clave:Inertial measurement unit
Wearable sensor
Timing system
Gate crossing time
Performance
Sports biomechanics
Running
Skiing
Descripción
Sumario:Inertial measurement units (IMUs) represent a technology that is booming in sports right now. The aim of this study was to evaluate the validity of a new application on the use of these wearable sensors, specifically to evaluate a magnet-based timing system (M-BTS) for timing short-duration sports actions using the magnetometer built into an IMU in different sporting contexts. Forty-eight athletes (22.7 ± 3.3 years, 72.2 ± 10.3 kg, 176.9 ± 8.5 cm) and eight skiers (17.4 ± 0.8 years, 176.4 ± 4.9 cm, 67.7 ± 2.0 kg) performed a 60-m linear sprint running test and a ski slalom, respectively. The M-BTS consisted of placing several magnets along the course in both contexts. The magnetometer built into the IMU detected the peak-shaped magnetic field when passing near the magnets at a certain speed. [...]