Table 2 Coefficient of determination, Pearson’s correlation coefficient, and associated 95% confidence intervals between 2 and 3D analysis.
Product comparison | Phases of the golf swing | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Address | Top of backswing | Acceleration | Impact | Follow through (late) | ||||||||||||||||
r2 | r | P | 95% CI | r2 | r | P | 95% CI | r2 | r | P | 95% CI | r2 | r | P | 95% CI | r2 | r | P | 95% CI | |
Kinovea vs Pro | 0.867 | 0.931 | 0.347 | − 0.236, 1.153 | 0.997 | 0.998 | 0.363 | − 0.541, 2.570 | 0.912 | 0.955 | 0.010 * | 0.306, 2.411 | 0.648 | 0.805 | 1.000 | − 1.220, 0.970 | 0.994 | 0.997 | 1.000 | − 3.585, 3.030 |
Kinovea vs Live | 0.817 | 0.904 | 1.000 | − 0.849, 0.699 | 0.888 | 0.942 | 1.000 | − 7.787, 10.266 | 0.731 | 0.855 | 0.103 | − 0.173, 2.556 | 0.717 | 0.847 | 1.000 | − 1.161, 0.794 | 0.995 | 0.997 | 1.000 | − 1.583, 4.145 |
Pro vs Live | 0.606 | 0.778 | 0.901 | − 1.639, 0.573 | 0.898 | 0.948 | 1.000 | − 8.449, 8.899 | 0.761 | 0.872 | 1.000 | − 1.886, 1.553 | 0.716 | 0.846 | 1.000 | − 1.027, 0.910 | 0.993 | 0.996 | 1.000 | − 1.986, 5.103 |
Vicon vs Kinovea | 0.977 | 0.988 | 1.000 | − 0.449, 0.199 | 0.985 | 0.992 | 1.000 | − 3.933, 2.454 | 0.958 | 0.979 | 0.004 * | − 1.438, − 0.279 | 0.898 | 0.948 | 1.000 | − 0.505, 0.705 | 0.999 | 0.999 | 1.000 | − 2.024, 1.362 |
Vicon vs Pro | 0.876 | 0.936 | 0.441 | − 0.207, 0.874 | 0.989 | 0.994 | 1.000 | − 2.581, 3.131 | 0.952 | 0.976 | 0.477 | − 0.330, 1.330 | 0.847 | 0.920 | 1.000 | − 0.631, 0.581 | 0.998 | 0.999 | 1.000 | − 2.691, 1.475 |
Vicon vs Live | 0.889 | 0.943 | 1.000 | − 0.812, 0.412 | 0.952 | 0.976 | 1.000 | − 5.390, 6.390 | 0.878 | 0.937 | 1.000 | − 0.642, 1.309 | 0.915 | 0.957 | 1.000 | − 0.630, 0.464 | 0.998 | 0.999 | 0.749 | − 0.884, 2.784 |
