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Use of an Inertial Measurement System to Calculate Maximal Power during Running Sprint Acceleration: Comparison with the Radar System
| Content Provider | MDPI |
|---|---|
| Author | Slawinski, Jean Millot, Benjamin Houel, Nicolas Dinu, Daniel |
| Copyright Year | 2020 |
| Description | The maximal total power $(P_{max}$) is one of the major determinants of sprint performance. It can be calculated using a simple model based on the runner’s velocity. This velocity has already been measured with force plates, video cameras or a radar system, but not with an inertial system. The purpose of this study was to compare $P_{max}$ measured with a radar system and with a multiple inertial sensors system. Seven participants (174.0 ± 6.9 cm; 67.7 ± 10.1 kg; 22.3 ± 1.7 years) realized two maximal 40-m sprints. Each athlete was equipped with an instrumented suit composed of 17 inertial measurement units (IMU) (Xsens), and a radar (Stalker ATS) was placed behind them. Both systems measured the athletes’ instantaneous horizontal velocity during the acceleration phase. Using an exponential model, $P_{max}$, maximal velocity $(V_{max}$), the slope of the exponential model (τ), maximal force $(F_{0}$) and the slope of the force, the velocity relationship (SFV) was calculated. The results showed that $P_{max}$, $V_{max}$, τ, $F_{0}$ and SFV were not significantly different between the radar and the Xsens system (p > 0.13). $P_{max}$, $V_{max}$ and $F_{0}$ measured with the radar were correlated with the same parameters measured with Xsens (r > 0.81 and p ≤ 0.03). The IMU system can be accurately used to measure the main parameters that determine the sprint running performance: $P_{max}$, $V_{max}$ and $F_{0}$. Moreover, contrary to the radar system, multiple inertial sensors will allow for an understanding of the role of the segments in maximal sprint running. |
| Starting Page | 23 |
| e-ISSN | 25043900 |
| DOI | 10.3390/proceedings2020049023 |
| Journal | Proceedings |
| Issue Number | 1 |
| Volume Number | 49 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-06-15 |
| Access Restriction | Open |
| Subject Keyword | Proceedings Sport Sciences Running Accelerometry Biomechanics Performance |
| Content Type | Text |
