A Simplified Method for Determining Swimming Arm-Stroke and Kick Durations Using Wearable Inertial Measurement Units

Authors : Uğur ÖDEK, Kürşat ÖZCAN

Pages : 142-149

Doi:10.53434/gbesbd.1195632

View : 5 | Download : 2

Publication Date : 2023-04-30

Article Type : Research Paper

Abstract :The use of inertial measurement units insert ignore into journalissuearticles values(IMU); by the coaches has not reached the desired level, especially due to the complexity of the data processing. The aim of the study is to demonstrate that raw acceleration data obtained from IMUs can be used in swimming technical analysis by individuals operating in the field after processing with simple filtering methods. For this aim, the arm-stroke and kicking durations of the swimmers were determined using the acceleration data obtained from the IMUs and the agreement with the times obtained from the video recordings was examined. Five female insert ignore into journalissuearticles values(18.2±.84 years; 1.69±.04 m; 60.76±1.86kg); and 5 male insert ignore into journalissuearticles values(19.6±2.41 years; 1.81±.03 m; 81.2±2.69 kg); competitive swimmers participated to the study. Data was collected via two high-speed cameras and four IMUs which were placed bilaterally to the ankles and wrists of the swimmers. Bland-Altman method were used to examine the agreement. One-Sample T-tests were used to test whether the difference between the two measurements differed significantly from the “0”. The majority insert ignore into journalissuearticles values(except 4); of the differences in arm-stroke and kicking cycle durations were within the limits of agreement. T-tests indicated that all the differences between the data obtained from two different measurement methods were not different from 0 insert ignore into journalissuearticles values(p>.05);. Results showed that the accelerometer data alone, without fusion with other data or processed with complex algorithms can be used with ease for investigating temporal variables of swimming techniques.
Keywords : Yüzme, Atalet ölçüm birimi, Giyilebilir teknoloji, Kol çekişi, Ayak vuruşu