Table 1 Number of frames automatically tr acked and number of manual interventions for each software and underwater movement.
Movement Software Automatic tr acks Manual
interventions
Percentage of manual
interventions
Odds
ratio
95% CI
Front crawl
swimming
DVP
COM
556
432
95
219
14.6
33.6
.34 * .26 – .44
Elliptical
machine
DVP
COM
244
158
50
136
17.0
46.3
.24 * .16 – .35
Towed
swimming
DVP
COM
494
496
2
0
0.4
0.0
≈ž 1 – ≈ž
Flutter
kick swimming
DVP
COM
332
310
57
79
14.7
20.3
.67 * .46 – .98
Treadmill DVP
COM
506
473
4
37
0.8
7.3
.10* .04 – .29
Walking DVP
COM
591
547
9
53
1.5
8.8
.16 * .08 – .32
Total DVP
COM
2723
2416
217
524
7.4
17.8
.37 * .31 – .44
CI, confidence interval for odds ratio.
* p 0.05, significantly different from 1