Table 3: Stroke length (SL), stroke rate (SR), stroke index (SI) and mean speed (Vmean) during 25 m all-out races using stiff and fiber fins. Values were measured before and after the time-point of one speed variation change (1st and 2nd intervals; upper panel) and of two speed variation changes (1st, 2nd, and 3rd intervals; lower panel).
| Interval |
SL (m) |
SR (Cycles.s-1) |
SI (m2.s-1) |
Vmean (m.s-1) |
CV (%) |
| Stiff |
1st |
1.35±0.14 |
0.99±0.11 |
1.79±0.21 |
1.32±0.06 |
0.10±0.01 |
| 2nd |
1.32±0.20 |
0.96±0.11 |
1.67±0.32 |
1.25±0.06 |
0.10±0.04 |
| Fiber |
1st |
1.45±0.43 |
0.98±0.24 |
1.96±0.59 |
1.35±0.07 |
0.10±0.01* |
| 2nd |
1.35±0.26 |
1.01±0.17 |
1.82±0.37 |
1.34±0.07 |
0.08±0.01 |
|
1st |
1.38±0.13 |
1.11±0.07 |
2.09±0.07 |
1.51±0.05** |
0.08±0.02 |
| Stiff |
2nd |
1.37±0.11 |
1.06±0.07 |
1.98±0.26 |
1.44±0.09 |
0.09±0.02 |
|
3rd |
1.41±0.15 |
1.00±0.67 |
1.96±0.32 |
1.39±0.09 |
0.07±0.03 |
|
1st |
1.53±0.13 |
0.94±0.14 |
2.17±0.22 |
1.43±0.14** |
0.09±0.03 |
| Fiber |
2nd |
1.50±0.11 |
0.93±0.04 |
2.11±0.37 |
1.40±0.14 |
0.11±0.02 |
|
3rd |
1.47±0.15 |
0.92±0.08 |
2.01±0.41 |
1.36±0.16 |
0.08±0.02 |
*, ** different (p≤0.5) from 2nd and 3rd interval in same condition, respectively.