This stroke analysis includes a moving sequence in real time, a moving sequence where each frame is displayed for .5 of a second, and still frames.
Each frame is .1 seconds apart. The sequence depicts a change in the stroking pattern that was held for the previous major portion of the event. Penelope Heynes quickened her stroke rate and reduced any emphasis on defined gliding. Ostensibly, this appears to be her form when sprinting for a finish at the end of a 200-m event.
Each frame is .1 second apart. Simon Cowley won this race in 2:12.98, which was the fourth fastest time in the world in 1999. For a 200-m breaststroker, Simon Cowley's stroke is almost continuous and is more in the tradition of a 100-m swimmer than a 200-m swimmer. That continuity is probably emphasized because the swimmer is close to the finish and he is executing a finishing "effort."