Fig. 8

Fuzzy sets and their divide. Blue, yellow, and gray denote three fuzzy sets: III, IV, and V. The horizontal axis signifies muscle strength requirements, while the vertical axis represents the probability of belonging to a specific fuzzy set. Post MMT clinical evaluation, the recorded results yielded grades 3, 3, and 4, respectively. Consequently, on the horizontal axis (muscle strength requirement), the figure reflects a value of 3.33. Correspondingly, on the vertical axis, the probabilities for fuzzy sets are as follows: Fuzzy Set III at 0.67 and Fuzzy Set IV at 0.33. Utilizing these probabilities, the game parameters (the size of the shooting target), corresponding to each fuzzy set, are weighted, and aggregated to derive the design target size