ECSens, Sport and Health University Research Institute (iMUDS), Department of Electronics and Computer Technology, ETSIIT, University of Granada, 18014 Granada, Spain.
SkiingLab, Sport and Health University Research Institute (iMUDS), Department of Physical and Sport Education, University of Granada, 18007 Granada, Spain.
Sensors (Basel). 2023 Jun 29;23(13):6022. doi: 10.3390/s23136022.
The world of elite sports has always been characterized by intense competition, where victories are often determined by minimal differences. This means that every little detail in the preparation of top-level athletes is crucial to their performance at the highest level. One of the most significant aspects to monitor is the jumping capacity, as it enables the measurement of performance, progression, and helps prevent injuries. Herein, we present the development of a system capable of measuring the flight time and height reached by the user, reporting the results through a smartphone using an Android ad-hoc application, which handles all the data processing. The system consists of an affordable and portable circuit based on an accelerometer. It communicates with the smartphone via UART using a Bluetooth module, and its battery provides approximately 9 h of autonomy, making it suitable for outdoor operations. To evaluate the system's precision, we conducted performance tests (counter-movement jumps) with seven subjects. The results confirmed the system's potential for monitoring high-level sports training sessions, as the average deviation obtained was only 2.1% (0.01 s) in the analysis of flight time and 4.6% (0.01 m) in jump height.
精英体育界一直以激烈的竞争为特点，胜利往往取决于微小的差距。这意味着顶级运动员准备过程中的每一个小细节对他们在最高水平上的表现都至关重要。其中一个需要密切监测的重要方面是跳跃能力，因为它可以衡量表现、进展，并有助于预防受伤。在此，我们介绍了一种能够测量用户跳跃飞行时间和高度的系统的开发，该系统通过使用 Android 专用应用程序的智能手机报告结果，该应用程序处理所有数据处理。该系统基于一个加速度计，由一个价格实惠且便携的电路组成。它通过 UART 与智能手机进行通信，使用蓝牙模块，并由电池提供大约 9 小时的自主权，使其适合户外操作。为了评估系统的精度，我们对七名受试者进行了性能测试（反向跳跃）。结果证实了该系统在监测高水平体育训练课程方面的潜力，因为在飞行时间分析中获得的平均偏差仅为 2.1%（约 0.01 秒），在跳跃高度方面的偏差为 4.6%（约 0.01 米）。
