For comparison the sample
was divided into two groups based on the mean (15.70 ±
0.74 s) of the 25-m swimming records: 14.62-15.67 sec
(S1, n = 11) and 15.79-16.94 sec (S2, n = 12). All the
swimmers performed 2 maximal front crawl 25-m trials
with a 15 min active recovery period between the 2 trials.
The faster trial was accepted as the swimmer performance.