Data Acquired by a Single Object Sensor (IMU) of Table Tennis Forehand Strokes
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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16名性别比例混合的乒乓球运动员，年龄介于19至38岁之间，所有受试者均使用搭载惯性测量单元（Inertial Measurement Unit，IMU）的乒乓球拍开展实验。本数据集选取正手击球的三类典型动作作为样本类别，分别为平击（Basic）、上旋球（Topspin）与推挡球（Push）。乒乓球正手击球的质量评分数据由3名具备专业等级资质且教育背景良好的乒乓球教练采集所得，所有教练均依据实验预设的评价指标，对运动员完成的击球动作进行人工打分。数据采集全程，所有运动员均使用搭载惯性测量单元（IMU）的乒乓球拍完成击球。所有受试者的击球表现均由围站在乒乓球台四周的教练完成评估、打分与标签标注。数据采集阶段，每名运动员均按照预先设定的击球动作流程完成训练，球拍可同步采集击球动作的评价指标数据与对应标签。样本采集流程具体如下：1）运动员开始进行正手击球动作；2）每完成一次击球后，由教练暂停计时5秒；3）通过配套软件将采集到的传感数据存储为单个CSV格式文件；4）教练手动对运动员的击球表现进行打分与标签标注。
