Data Acquired by a Single Object Sensor (IMU) of Table Tennis Forehand Strokes

The sensory data were collected from a total of 16 Table Tennis players mixed gender, aged between 19 and 38 years, who used the IMU mounted Racket. We considered the Basic, Topspin, and Push as the sample type of performed Forehand strokes. The Table Tennis Forehand strokes quality evaluation values were collected from a total of 3 Table Tennis highly educated and ranked coaches who manually scored the performed strokes based on the experiment evaluation metrics.
The players used the IMU mounted racket when samples were collecting. Each subject's performance was evaluated, scored, and labeled by the coaches who placed around Table Tennis's table. Acquiring simultaneously by the Racket, the strokes' evaluation metrics values, and their labels, each player carried out a predetermined stroke performing protocols when data was gathering. Capturing order of the samples are: 1) the players started performing strokes, 2) paused for five seconds by the coaches at the end of each stroke performing, 3) stored the sensory data by the software into a single CSV file, 4) labeled and scored the players' performance by the coaches manually.

本数据集的传感数据采集自共计16名男女混合的乒乓球运动员，年龄介于19至38岁之间，受试者均使用搭载惯性测量单元（Inertial Measurement Unit, IMU）的乒乓球拍。本研究选取正手击球的三类典型动作作为样本类型，分别为基础击球、上旋球击球与推挡击球。乒乓球正手击球的质量评价得分，由3名兼具高学历与高水平排名的乒乓球教练，依据实验评价指标对运动员完成的击球动作进行人工评分后获取。
数据采集过程中，运动员仍使用搭载惯性测量单元的乒乓球拍。每位受试者的击球表现，均由布置在乒乓球台周围的教练完成评价、评分与标注。球拍可同步采集击球动作的评价指标数据及其对应标签；数据采集期间，每位运动员均需严格遵循预设的击球动作规程完成动作。样本采集顺序如下：1）运动员启动击球动作；2）单次击球结束后，由教练暂停5秒；3）通过软件将传感数据存储为单个CSV文件；4）教练手动对运动员的击球表现进行标注与评分。