Accuracy and Interpretation of the Acceleration from an Inertial Measurement Unit When Applied to the Sprint Performance of Track and Field Athletes
| العنوان: | Accuracy and Interpretation of the Acceleration from an Inertial Measurement Unit When Applied to the Sprint Performance of Track and Field Athletes |
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| المؤلفون: | Orlando de Jesus Fernandes, Paulo Miranda-Oliveira, Marco Branco |
| المصدر: | Sensors Volume 23 Issue 4 Pages: 1761 |
| بيانات النشر: | Multidisciplinary Digital Publishing Institute, 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | high-level athletes, sprint, Electrical and Electronic Engineering, anteroposterior acceleration, IMU, Biochemistry, Instrumentation, Atomic and Molecular Physics, and Optics, Analytical Chemistry, step time |
| الوصف: | In this study, we aimed to assess sprinting using a developed instrument encompassing an inertial measurement unit (IMU) in order to analyze athlete performance during the sprint, as well as to determine the number of steps, ground contact time, flight time, and step time using a high-speed camera as a reference. Furthermore, we correlated the acceleration components (XYZ) and acceleration ratio with the performance achieved in each split time obtained using photocells. Six athletes (four males and two females) ran 40 m with the IMU placed on their fifth lumbar vertebra. The accuracy was measured through the mean error (standard deviation), correlation (r), and comparison tests. The device could identify 88% to 98% of the number of steps. The GCT, flight time, and step time had mean error rates of 0.000 (0.012) s, 0.010 (0.011) s, and 0.009 (0.009) s when compared with the high-speed camera, respectively. The step time showed a correlation rate of r = 0.793 (p = 0.001) with no statistical differences, being the only parameter with high accuracy. Additionally, we showed probable symmetries, and through linear regression models identified that higher velocities result in the maximum anteroposterior acceleration, mainly over 0–40 m. Our device based on a Wi-Fi connection can determine the step time with accuracy and can show asymmetries, making it essential for coaches and medical teams. A new feature of this study was that the IMUs allowed us to understand that anteroposterior acceleration is associated with the best performance during the 40 m sprint test. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1424-8220 |
| DOI: | 10.3390/s23041761 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0600e023a57e798deeaa6e0f7a0d8599Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....0600e023a57e798deeaa6e0f7a0d8599 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14248220 |
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| DOI: | 10.3390/s23041761 |