Table 3. scoring rate, usage rate, and technique effectiveness values for stroke sequence.   Training matches International competitions β SE p 95%CI SR1 0.155 ± 0.066 0.165 ± 0.075 -0.011 0.013 0.481 -0.040, 0.019 UR1 0.221 ± 0.016 0.219 ± 0.028 0.002 0.006 0.719 -0.010, 0.015 TE1 0.398 ± 0.018 0.403 ± 0.017 -0.005 0.003 0.087 -0.012, 0.001 SR2 0.218 ± 0.071 0.232 ± 0.079 -0.013 0.014 0.362 -0.041, 0.015 UR2 0.223 ± 0.018 0.222 ± 0.028 0.002 0.006 0.783 -0.011, 0.014 TE2 0.415 ± 0.021 0.421 ± 0.019 -0.006 0.003 0.063 -0.011, 0.000 SR3 0.272 ± 0.097 0.254 ± 0.097 0.018 0.019 0.342 -0.019, 0.056 UR3 0.183 ± 0.014 0.177 ± 0.017 0.006 0.003 0.062 0.000, 0.012 TE3 0.443 ± 0.024 0.440 ± 0.024 0.002 0.005 0.655 -0.008, 0.013 SR4 0.229 ± 0.093 0.205 ± 0.076 0.027 0.008 < 0.001 0.011, 0.043 UR4 0.139 ± 0.014 0.133 ± 0.016 0.006 0.003 0.027 0.001, 0.011 TE4 0.447 ± 0.019 0.445 ± 0.014 0.003 0.002 0.231 -0.002, 0.007 SR>3 0.268 ± 0.147 0.320 ± 0.174 -0.052 0.035 0.139 -0.121, 0.017 UR>3 0.034 ± 0.014 0.032 ± 0.010 0.002 0.003 0.361 -0.003, 0.008 TE>3 0.489 ± 0.007 0.492 ± 0.009 -0.003 0.002 0.159 -0.006, 0.001 SR>4 0.269 ± 0.161 0.280 ± 0.182 -0.013 0.040 0.749 -0.090, 0.065 UR>4 0.024 ± 0.009 0.024 ± 0.009 0.001 0.001 0.509 -0.002, 0.003 TE>4 0.492 ± 0.006 0.493 ± 0.007 -0.001 0001 0.410 -0.004, 0.002 (SR) denotes scoring rate; (UR) represents usage rate; (TE) denotes technique effectiveness. The subscripts (e.g., 1, 2, 3, 4, >3, >4) indicate the sequence of strokes within a rally. For example, SR1 refers to the scoring rate of the first stroke.