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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Advances of the reverse lactate threshold test: Non-invasive proposal based on heart rate and effect of previous cycling experience

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Author(s):
Dalcheco Messias, Leonardo Henrique [1] ; Camolese Polisel, Emanuel Elias [1] ; Manchado-Gobatto, Fulvia Barros [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas, Sch Appl Sci, Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: PLoS One; v. 13, n. 3 MAR 13 2018.
Web of Science Citations: 1
Abstract

Our first aim was to compare the anaerobic threshold (AnT) determined by the incremental protocol with the reverse lactate threshold test (RLT), investigating the previous cycling experience effect. Secondarily, an alternative RLT application based on heart rate was proposed. Two groups (12 per group-according to cycling experience) were evaluated on cycle ergometer. The incremental protocol started at 25 W with increments of 25 W at each 3 minutes, and the AnT was calculated by bissegmentation, onset of blood lactate concentration and maximal deviation methods. The RLT was applied in two phases: a) lactate priming segment; and b) reverse segment; the AnT (AnT(RLT)) was calculated based on a second order polynomial function. The AnT from the RLT was calculated based on the heart rate (AnT(RLT-HR)) by the second order polynomial function. In regard of the Study 1, most of statistical procedures converged for similarity between the AnT determined from the bissegmentation method and AnT(RLT). For 83% of non-experienced and 75% of experienced subjects the bias was 4% and 2%, respectively. In Study 2, no difference was found between the AnT(RLT) and AnT(RLT-HR). For 83% of non-experienced and 91% of experienced subjects, the bias between AnT(RLT) and AnT(RLT-HR) was similar (i.e. 6%). In summary, the AnT determined by the incremental protocol and RLT are consistent. The AnT can be determined during the RLT via heart rate, improving its applicability. However, future studies are required to improve the agreement between variables. (AU)

FAPESP's process: 12/06355-2 - Standardization of free and tethered specific tests to determine the aerobic and anaerobic parameters in slalom kayak: relationship with the performance
Grantee:Fúlvia de Barros Manchado Gobatto
Support Opportunities: Regular Research Grants