The effect of different first 200-m pacing strategies on blood lactate and biomechanical parameters of the 400-m sprint

The purpose of the present study was to evaluate the effect of three pacing strategies upon performance of the 400-m sprint. Eight healthy male physical education students participated in this study. Each participant performed a 200-m maximal test (200 MAX ) and three 400-m running tests in a random...

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Veröffentlicht in:European journal of applied physiology 2011-08, Vol.111 (8), p.1579-1590
Hauptverfasser: Saraslanidis, Ploutarchos J., Panoutsakopoulos, Vassilios, Tsalis, George A., Kyprianou, Efthymios
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Sprache:eng
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Zusammenfassung:The purpose of the present study was to evaluate the effect of three pacing strategies upon performance of the 400-m sprint. Eight healthy male physical education students participated in this study. Each participant performed a 200-m maximal test (200 MAX ) and three 400-m running tests in a random counterbalanced design. The 400-m tests were run with the first 200-m pace set at 98% (400 98% ), 95% (400 95% ), and 93% (400 93% ), respectively, of the effort for 200 MAX . The stimulation of the lactate system was assessed by post-test blood lactate concentration (BLa). Running speed (RS) was controlled with time-keeping devices. Stride frequency (SF), stride length (SL) and lower extremity kinematics were acquired with video cameras operating at 100 fps at the 125 and 380-m marks of the tests. A two-way analysis of variance (ANOVA) with repeated measures was used to identify modifications caused by the pacing strategies used. Non-significant differences were revealed for BLa. The fastest 400-m race was run in 400 93% , but performance was not significantly different ( p  > 0.05) among the examined pacing strategies. RS, SF and SL had significantly ( p  
ISSN:1439-6319
1439-6327
DOI:10.1007/s00421-010-1772-4