Table 2.
Performance, underwater kicking, and physiological parameters of competitive swimmers in different underwater swimming conditions.
| Condition 1 | Condition 2 | Condition 3 | |
|---|---|---|---|
| Swimming time (s) | 49.99 ± 5.77 | 49.83 ± 5.52 | 49.69 ± 5.58 |
| Total number of kicks (n) | 16.0 ± 8.1b,c | 20.7 ± 8.9a,c | 25.4 ± 11.1a,b |
| Total underwater distance (m) | 26.13 ± 3.50b,c | 30.94 ± 4.98 | 32.21 ± 6.40 |
| Total underwater time (s) | 14.23 ± 3.99b,c | 16.74 ± 4.56 | 18.06 ± 5.47 |
| Total underwater velocity (m/s) | 1.86 ± 0.24 | 1.84 ± 0.24 | 1.76 ± 0.24a,b |
| Total surface swimming velocity (m/s) | 1.45 ± 0.14 | 1.43 ± 0.15a,c | 1.45 ± 0.14 |
| Heart rate (bpm) | 174.5 ± 10.3 | 176.1 ± 9.9 | 177.0 ± 10.7 |
| Blood lactate (Mmol/L) | 9.35 ± 2.55 | 8.96 ± 3.84 | 10.31 ± 3.97 |
| RPE | 7.61 ± 0.82b,c | 8.29 ± 0.81 | 8.62 ± 0.81 |
a,b,cStatistically different from the first, second, or third underwater swimming conditions, respectively.