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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.)

Validity and reliability of incremental test to determine the anaerobic threshold in swimming rats

Beck, Wladimir R. [1] ; Campesan, Yuri S. [1] ; Gobatto, Claudio A. [1]
Total Authors: 3
[1] Univ Estadual Campinas, Dept Sport Sci, Sch Appl Sci, Lab Appl Sport Physiol, BR-13484350 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Web of Science Citations: 2

The organic and metabolic consequences of physical exercise are critically modulated depending of the effort intensity and volume. Nevertheless, most of the protocols employed for objectively determine the individual exercise intensities for rats are impractical or unadvisable for various experimental designs. The aim of this study was to individually determine the anaerobic threshold intensity (iAnT) and the maximal lactate steady state (MLSS, gold standard procedure) intensities using a single incremental swimming test for rats, verifying it validity and reliability. Eleven male Wistar rats were submitted twice (48 hours of interval) to an incremental test with overloads from 3% of body mass (% bm), increments of 0.5% bm and stages of 5 min. From blood lactate concentration and % bm data were constructed two linear regressions to determine iAnT. Then, all of the animals performed the MLSS procedure based on iAnT. Comparing iAnT test and re-test were found significant intraclass correlation (r = 0.67; p = 0.01), no significant difference (p = 0.91), coefficient of variation of 4.04% and effect size of 0.02, beyond good agreement, precision and accuracy attested by Bland-Altman plots (bias of 0.010). Furthermore, iAnT was not different from MLSS intensity. A single incremental swimming test comprises a high applicable, valid and reliable tool for objectively and individually determines exercise intensity of swimming rats. (AU)

FAPESP's process: 11/13226-1 - Ergogenic response of melatonin during the nadir and acrophase of spontaneous activity: consequences on IKK/Nf-kB via
Grantee:Wladimir Rafael Beck
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 09/08535-5 - Standardization and validity of aerobic and anaerobic tests in field and laboratory, using free, tethered and half-tethered running, in endurance and sprint runners
Grantee:Claudio Alexandre Gobatto
Support type: Regular Research Grants
FAPESP's process: 12/20501-1 - Molecular responses of continuous and intermitent swimming and of exogenous melatonin in rats: cell signalizers of the intermediary metabolism and from the inflammatory and oxidative stress pathways
Grantee:Claudio Alexandre Gobatto
Support type: Regular Research Grants
FAPESP's process: 10/13377-7 - Effects of light and time of day of swimming exercise until exhaustion at lactate minimum intensity on biochemistry and hematologic responses of rats
Grantee:Wladimir Rafael Beck
Support type: Scholarships in Brazil - Master