Table 1. Test-retest reliability of the Polar V800 sports watch, force platform and high-speed camera |
|
Systematic Bias (cm) |
Random Error (cm) |
Proportional Bias |
ICC (95% CI) |
CV (%) |
Polar V800, SJ |
-0.37 |
3.14 |
No |
0.90 (0.80-0.93) |
4.83 |
Force Plate, SJ |
0.44 |
3.59 |
No |
0.83 (0.71-0.90) |
6.20 |
Kinovea, SJ |
-0.18 |
2.81 |
No |
0.89 (0.81-0.94) |
4.11 |
Polar V800, CMJ |
-0.77 |
3.29 |
No |
0.90 (0.81-0.94) |
4.66 |
Force Plate, CMJ |
-0.09 |
3.82 |
No |
0.84 (0.73-0.91) |
5.90 |
Kinovea, CMJ |
-0.31 |
3.44 |
No |
0.86 (0.77-0.92) |
5.24 |
|
CI: confidence interval; CMJ: countermovement jump; CV: coefficient of variation; ICC = intraclass correlation coefficient; SJ: squat jump. No significant test-retest differences in each device, p > 0.05. |
|