Table 1 Correlation coefficients for the total slip distance Dtotal between the index finger and ball during the ball release process and pitching performance measures assessed with a doppler radar tracking system for all participants and each participant.
Participant | Ball velocity | Spin rate | Horizontal ball arrival location | Vertical ball arrival location | Horizontal ball release angle | Vertical ball release angle |
|---|---|---|---|---|---|---|
Overall | −0.314 | −0.523 | 0.145 | 0.316 | 0.141 | 0.478 |
a | −0.686 | −0.675 | 0.421 | 0.630 | 0.358 | 0.732 |
b | −0.441 | −0.874 | 0.203 | 0.450 | 0.168 | 0.442 |
c | 0.211 | −0.429 | −0.206 | 0.403 | −0.116 | 0.552 |
d | −0.783 | −0.910 | 0.788 | 0.445 | 0.633 | 0.615 |
e | −0.463 | −0.860 | −0.120 | −0.124 | −0.099 | 0.394 |
f | −0.632 | −0.896 | 0.068 | 0.145 | 0.041 | 0.263 |
