caa a22 4500 467942412 CHVBK 20180406153017.0 cr unu---uuuuu 170328e20060501xx s 000 0 eng 10.1007/s00421-006-0157-1 doi (NATIONALLICENCE)springer-10.1007/s00421-006-0157-1 Prediction of time to exhaustion from blood lactate response during submaximal exercise in competitive cyclists [Elektronische Daten] [A. Sassi, S. Marcora, E. Rampinini, P. Mognoni, F. Impellizzeri] The aim of this investigation was to develop and validate a new method to predict time to exhaustion (pTE) from blood lactate variables measured during a submaximal non-exhaustive constant workload cycling test in professional cyclists. A multiple regression equation to estimate pTE from blood lactate variables measured within the first 10min of a submaximal test and TE was determined in 40 competitive cyclists. Predicted TE reliability [individual coefficient of variation (CV)] was calculated in eight amateur cyclists who repeated the proposed test three times. Seasonal variations of pTE were monitored in 12 professional cyclists. Validity of pTE was determined by the known-group difference method in 49 professional cyclists. The prediction equation was: lognTE = 4.2067 − 0.8221(logn B) − 0.2519(logn C), where B is the lactate concentration at the 10th minute of the constant workload test and C is the lactate slope calculated between the 5th and 10th minute (adjusted r 2 =0.83, root mean square error in cross validation=23.1%). Predicted TE CV was 11.7%. The pTE obtained at the beginning of the season and the best and worst tests performed during the competitive season, resulted 162, 224 and 103% higher than the basic period test, respectively (P<0.05). Predicted TE was the only parameter discriminating elite from subelite professional cyclists. In conclusion, this study demonstrates that pTE is a valid and practical alternative to incremental tests and direct measures of endurance capacity requiring exhaustive efforts for the evaluation of competitive cyclists. Springer-Verlag, 2006 Lactate nationallicence Time to fatigue nationallicence Estimation nationallicence Validity nationallicence Reliability nationallicence Seasonal changes nationallicence Sassi A. Human Performance Laboratory, S.S. MAPEI, Via Don Minzoni, 34, 21053, Castellanza (Varese), Italy aut Marcora S. School of Sport, Health, and Exercise Sciences, University of Wales, Bangor, Gwynedd, UK aut Rampinini E. Human Performance Laboratory, S.S. MAPEI, Via Don Minzoni, 34, 21053, Castellanza (Varese), Italy aut Mognoni P. Consiglio Nazionale di Ricerca, Istituto Bioimmagini e Fisiologia Molecolare, Segrate, Milano, Italy aut Impellizzeri F. Human Performance Laboratory, S.S. MAPEI, Via Don Minzoni, 34, 21053, Castellanza (Varese), Italy aut European Journal of Applied Physiology Springer-Verlag 97/2(2006-05-01), 174-180 1439-6319 97:2<174 2006 97 421 https://doi.org/10.1007/s00421-006-0157-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00421-006-0157-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sassi A. Human Performance Laboratory, S.S. MAPEI, Via Don Minzoni, 34, 21053, Castellanza (Varese), Italy aut NATIONALLICENCE 700 1- Marcora S. School of Sport, Health, and Exercise Sciences, University of Wales, Bangor, Gwynedd, UK aut NATIONALLICENCE 700 1- Rampinini E. Human Performance Laboratory, S.S. MAPEI, Via Don Minzoni, 34, 21053, Castellanza (Varese), Italy aut NATIONALLICENCE 700 1- Mognoni P. Consiglio Nazionale di Ricerca, Istituto Bioimmagini e Fisiologia Molecolare, Segrate, Milano, Italy aut NATIONALLICENCE 700 1- Impellizzeri F. Human Performance Laboratory, S.S. MAPEI, Via Don Minzoni, 34, 21053, Castellanza (Varese), Italy aut NATIONALLICENCE 773 0- European Journal of Applied Physiology Springer-Verlag 97/2(2006-05-01), 174-180 1439-6319 97:2<174 2006 97 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer