[Retracted] MEMS Sensors in Tennis Teaching and Training under the Background of Big Data Intelligent Communication

Table 6

The number of samples of the action category labels used in this article.

Human action category	Category label	Number of samples
Stand	1	15
Sit upright	2	15
Prone	3	15
Squat	4	15
Push	5	15
Arms folded	6	15
Front kick	7	15
Forward kick	8	15
Lunge	9	15
Side step	10	15