Browsing by Subject "Inertial device"

Now showing 1 - 3 of 3
  • Thumbnail Image
    Publication
    Open Access
    Identification of games and sex-related activity profile in junior international badminton
    (Taylor and Francis Group, Routledge, 2020-04-15) Rojas-Valverde, Daniel; Gómez-Carmona, Carlos David; Fernández-Fernández, Jaime; García-López, Juan; García-Tormo, Vicente; Cabello-Manrique, David; Pino Ortega, José; Actividad Física y Deporte
    The aims of the present study were (a) to analyse the activity profile in U’18 Badminton players during an international tournament and (b) to compare the games and sex-related differences. Twenty-four players (women = 14; men = 10) were assessed using inertial measurement units with ultra-wideband indoor tracking system. Eleven variables were extracted after principal component analysis (PCA). Differences between games and gender were performed by mixed analysis of variance. In men, PCA of the whole game explained 89.2% and in women 75.7%. The most representative variables in men’s and women’s were relative distance and maximum accelerations (PC1). The players’ activity profile was (men vs women) 44.6 ± 3.8 vs 43.5 ± 5.2 m/min in relative distance, 25.9 ± 1.9 vs 24.7 ± 1.9 n/min in relative acceleration, 3.87 ± 0.3 vs 3.47 ± 0.4 m/s2 in maximum acceleration, 175.5 ± 9.4 vs 173.2 ± 15.6 bpm in average heart rate. Sex-related differences were found in maximum accelerations (p < 0.01) and relative accelerations (p < 0.01) and in relative distance by games. The workload dynamics during games and between sexes should be addressed by team staff in order to develop effective tactical and recovery strategies during badminton tournaments.
  • Thumbnail Image
    Publication
    Open Access
    Validez del dispositivo inercial WIMU PRO tm para el registro de la frecuencia cardiaca en un test de campo
    (Universidad de Murcia, 2018) Molina-Carmona, Iván; Gómez-Carmona, Carlos; Bastida Castillo, Alejandro; Pino Ortega, José
    Introducción. Los avances tecnológicos han contribuido a la mejora de la colección de datos fisiológicos y cinemáticos con relación a la competición y los entrenamientos. Dispositivos inerciales tales como WIMUPROTM (RealTrack Systems, Almería, España) compuesto por diferentes sensores (cuatro acelerómetros, dos giróscopos, un magnetómetro, un chip GNSS para posicionamiento global mediante satélite, un chip UWB para posicionamiento por radiofrecuencia de onda corta en deportes indoor, receptor de Ant+ y Bluetooth, entre otros)se utilizan dentro de una variedad de situaciones deportivas. Es importante conocer la validez y precisión del dato de dichas mediciones ya que se utilizan en contextos reales del juego. Objetivo. Evaluar la validez del dispositivo inercial WIMU PROTM para registrar la variable frecuencia cardíaca (FC) en relación con un dispositivo validado como es Polar Team 2® . Participantes. 15 jugadores de fútbol de categoría cadete participaron voluntariamente en este estudio(edad:15,40 ± 0,50 años, altura:169,26 ± 0,08 cm, peso:62,00 ± 12,32 kg). Procedimiento. Los individuos que componen la muestra llevaron a cabo el test RSA (adaptado de Bangsbo 2008) el cual consta de 7 sprints de 30 metros con una recuperación activa entre ellos de 20 segundos, el cual simula las exigencias reales de competición en fútbol. Resultados. Se encontró una correlación muy alta entre los datos obtenidos por el registro del dispositivo WIMU PROTM y los realizados por el dispositivo Polar Team 2® (r2=.958, p<.001). Conclusiones. El dispositivo inercial WIMU PROTM es válido para registrar la variable de intensidad de actividad física frecuencia cardíaca en fútbol.
  • Thumbnail Image
    Publication
    Open Access
    Validity and reliability of the WIMUTM inertial device for the assessment of joint angulations
    (MDPI, 2019-12-27) García Rubio, Javier; Olivares, Pedro R.; Ibáñez, Sergio José; Pino Ortega, José; Actividad Física y Deporte
    Range of motion measurement is fundamental in the physical examination and functional evaluation of different joints. WIMUTM is an inertial device that allows the analysis of joint motion easily in real time. This study had a two-fold goal: (i) to evaluate the validity of WIMUTM on the measurement of different angle positions, compared with a standard goniometer and 2D video-based motion analysis software; and (ii) to evaluate the use of WIMUTM in the assessment of angulations in a joint, specifically assessing the validity and reliability of WIMUTM on the measurement of ankle dorsiflexion, compared to a standard goniometer and Kinovea. The intraclass correlation coefficient and Pearson´s correlation coefficient (r) were performed to calculate the concurrent validity, and Bland-Altman plots were performed to analyze agreement between measures. For the analysis of reliability, both relative and absolute indices were used. The results showed excellent validity and reliability of WIMUTM in the assessment of angle positions and ankle dorsiflexion. The current findings conclude that WIMUTM is a valid and reliable instrument to measure angle and joint motions. In short, WIMUTM provides a new clinical and sportive method of angle measurement.