Biomechanics and Medicine in Swimming XI

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chaPter4.trainingandPerformance
Blood Lactate Responses During Interval Training
Corresponding to Critical Velocity in Age-Group
Female Swimmers
tsalis, G. 1 , toubekis, A.G. 2 , Michailidou, d. 1 , Gourgoulis, V. 3 ,
douda, h. 3 , tokmakidis, s.P. 3
1 Aristotle University, Thessaloniki, Greece,
2 Kapodistrian University of Athens, Athens, Greece
3 Democritus University of Thrace, Komotini, Greece
The present study examined the blood lactate responses of female swimmers
at intensity corresponding to critical velocity (CV). Eight children
(C), eleven youth (Y) and seven adults (A) were timed in distances of 50,
100, 200, 400 m for the CV calculation. On a following day the C performed
5x300 m and the Y and A 5x400 m repetitions with 30-40 s interval,
at CV. Blood lactate concentration ([La]) was similar between groups
and maintained steady within a range of 3.5±1.2 to 5.1±1.6 mmol·L -1
(p>0.05). RPE and RPE/[La] ratio were no different between groups
(p>0.05) and increased after the second and third repetition respectively
in all groups (p