Department of Medical, Health & Sports Engineering, MCI, Maximilianstraße 2, 6020 Innsbruck, Austria.
Johannes Steiner Golf, Robert-Fuchs-Str. 40, 8053 Graz, Austria.
Sensors (Basel). 2023 Dec 12;23(24):9783. doi: 10.3390/s23249783.
In golf, the location of the impact, where the clubhead hits the ball, is of imperative nature for a successful ballflight. Direct feedback to the athlete where he/she hits the ball could improve a practice session. Currently, this information can be measured via, e.g., dual laser technology; however, this is a stationary and external method. A mobile measurement method would give athletes the freedom to gain the information of the impact location without the limitation to be stationary. Therefore, the aim of this study was to investigate whether it is possible to detect the impact location via a motion sensor mounted on the shaft of the golf club. To answer the question, an experiment was carried out. Within the experiment data were gathered from one athlete performing 282 golf swings with an 7 iron. The impact location was recorded and labeled during each swing with a Trackman providing the classes for a neural network. Simultaneously, the motion of the golf club was gathered with an IMU from the Noraxon Ultium Motion Series. In the next step, a neural network was designed and trained to estimate the impact location class based on the motion data. Based on the motion data, a classification accuracy of 93.8% could be achieved with a ResNet architecture.
在高尔夫球运动中,球杆击球的位置对于成功的球飞行至关重要。直接向运动员反馈他们击球的位置可以改善练习效果。目前,这些信息可以通过例如双激光技术来测量,但这是一种固定的外部方法。移动测量方法将使运动员能够自由获得击球位置的信息,而不受静止的限制。因此,本研究的目的是调查通过安装在高尔夫球杆杆上的运动传感器是否可以检测到击球位置。为了回答这个问题,进行了一项实验。在实验中,从一名运动员进行的 282 次 7 号铁杆挥杆中收集数据。在每次挥杆过程中,通过 Trackman 记录和标记击球位置,为神经网络提供类别。同时,使用来自 Noraxon Ultium Motion Series 的 IMU 收集高尔夫球杆的运动数据。在下一步中,设计并训练了一个神经网络,以便根据运动数据估计击球位置类别。基于运动数据,使用 ResNet 架构可以实现 93.8%的分类准确性。