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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.)

Melatonin is an Ergogenic Aid for Exhaustive Aerobic Exercise only during the Wakefulness Period

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Beck, W. R. [1, 2] ; Scariot, P. P. M. [2] ; Gobatto, C. A. [2, 1]
Total Authors: 3
[1] Univ Estadual Campinas, Phys Educ, Campinas, SP - Brazil
[2] Univ Estadual Campinas, Sch Appl Sci, Lab Appl Sport Physiol, BR-13484350 Limeira, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF SPORTS MEDICINE; v. 37, n. 1, p. 71-76, JAN 2016.
Web of Science Citations: 4

This study tested the ergogenic effects of acute administration of melatonin on exhaustive exercise (tlim) at the anaerobic threshold intensity (iAnT) during periods of lower (L) and higher (H) spontaneous physical activity in swimming rats. Additionally, we evaluated the time of day effect on aerobic exercise tolerance. The periods of L and H were determined gravimetrically. All animals were subjected to an incremental test to determine the iAnT. Melatonin was administered (, intraperitoneal) and after 30min, the rats were subjected to tlim during the L (LM) or H (HM) period. Control groups were called LC and HC. The criterion of significance was 5%. Melatonin enhanced tlim by 169% during H (HC=72min; HM=194min; P<0.01; ES=1.23) and by 90% during L (LC=31min vs. LM=59min; P=0.39; ES=1.18), demonstrating a significant effect on tlim (F=10.35; P<0.01) and a strong effect size (ES). Additionally, tlim was higher during H (F=14.24; P<0.01). Melatonin is a reasonable ergogenic aid, particularly during the wakefulness period, and the exercise tolerance is dependent on the time of day for 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: 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