Table 1. Mean (±SD) duration of active phase for active phase and active phase four all the muscles (BB- bíceps brachii; DA- deltoid anterior; PM- pectoralis major and TB- triceps brachii), over the four laps of the 200 m breaststroke maximal effort.
1st lap 2nd lap 3rd Lap 4th Lap
Laps Active
phasebeg (s)
Active
phaseend (s)
Active
phasebeg (s)
Active
phaseend (s)
Active
phasebeg (s)
Active
phaseend (s)
Active
phasebeg (s)
Active
phaseend (s)
BB .99 (.78) .98 (.90) .73 (.26) .58 (.14) .68 (.27) .56 (.20) .70 (.24) .63 (.10)
DA .78 (.30) .64 (.17) .63 (.14) .72 (.14) .87 (.67) .58 (.25) .82 (.38) .93 (.58)
PM .61 (.18) .71 (.32) .64 (.17) .88 (.48) .69 (.62) .55 (.33) .62 (.35) .79 (.63)
TB .71 (.21) .69 (.25) .54 (.14) .58 (.14) .54 (.22) .52 (.15) .84 (.74) .85 (.76)