Match performance in racket sports: Crosstalk between current situation and future prospect

every sport. During the match duration that varies between 20 to 90 min across these sports,1 superior player should perform different important activities over the match play including moving quickly as possible, accelerate, decelerate, multiple change direction, maintain static and dynamic balance, and perform optimum stroke generation.2 In main racket sports, match performance characteristics were investigated3–7 tennis,8–11 badminton,12–15 table tennis, and16–21 squash. Match performance outline data is formulated into more essential variables in tennis, badminton, table tennis and squash respectively, for instance rally time (5-12, 4-8, 3-4, and 15-20 sec), recovery time between ball or shuttlecock hit to the end of point (15-20, 10-16, 6-8, and 8-10 sec), percentage of the effective playing time (20-30, 40-50, 30-35, and 50-70 %), a work-rest ratio (1:4, 1-2, 1-3, and 1-1 W:R).22– 26 The player movement and the covered distance in these sports dictated during last years with a little attention for more reasons such as the match rules of federations and the limitation during capturing motion with GPS units in indoor environments, Nevertheless, for example in tennis,27–29 badminton,30,31 table tennis,32 and squash.33