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|Title:||Effects of branched-chain amino acid (BCAA) supplementation on endurance exercise performance of pregnant rats|
|Authors:||Monteiro, G. A. [UNIFESP]|
Aoki, M. S.
Santos, C. B. [UNIFESP]
Monteiro, A. G. [UNIFESP]
Russo, A. [UNIFESP]
Piçarro, Ivan da Cruz [UNIFESP]
Universidade de São Paulo (USP)
Universidade Federal de São Paulo (UNIFESP)
|Keywords:||Branched-chain amino acids|
|Citation:||Science & Sports. Paris: Elsevier France-editions Scientifiques Medicales Elsevier, v. 24, n. 2, p. 102-107, 2009.|
|Abstract:||Aims. - the present study evaluated the effects of BCAA supplementation on exercise performance of pregnant rats.Methods. - in order to assess these effects, Wistar rats were divided into four groups: sedentary not-supplemented (SNS, n = 8); sedentary supplemented (SS, n = 8); trained not-supplemented (TNS, n = 8) and trained supplemented (TS, n = 8). All groups were submitted to the endurance test until exhaustion (ET) and post-effort lactate (PEL) determination before pregnancy (ET-B and PEL-B) and at the 19th day of pregnancy (ET-19 and PEL-19).Results. - the endurance training significantly increased the ET time to exhaustion (p<0.05). Regardless of BCAA supplementation, both endurance trained groups (TS and TNS) showed a longer time to exhaustion, assessed by ET, compared with the sedentary groups (SS and SNS) (p < 0.05). in the TNS, ET-19 time to exhaustion decreased when compared with the period before pregnancy. On the other hand, ET-19 time to exhaustion was not affected in the TS at the end of the pregnancy period. in addition, TS showed a marked PEL-19 reduction when compared with PEL-B. the data presented herein suggest that BCAA supplementation plays an ergogenic role in the maintenance of exercise performance during pregnancy in rats. (C) 2008 Elsevier Masson SAS. All rights reserved.|
|Appears in Collections:||Em verificação - Geral|
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