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Type: Artigo de periódico
Title: Monitoring chronic physical stress using biomarkers, performance protocols and mathematical functions to identify physiological adaptations in rats
Author: de Araujo, GG
Papoti, M
Manchado-Gobatto, FD
de Mello, MAR
Gobatto, CA
Abstract: This study was undertaken to characterize the effects of monotonous training at lactate minimum (LM) intensity on aerobic and anaerobic performances; glycogen concentrations in the soleus muscle, the gastrocnemius muscle and the liver; and creatine kinase (CK), free fatty acids and glucose concentrations in rats. The rats were separated into trained (n = 10), baseline (n = 10) and sedentary (n = 10) groups. The trained group was submitted to the following: 60 min/day, 6 day/week and intensity equivalent to LM during the 12-week training period. The training volume was reduced after four weeks according to a sigmoid function. The total CK (U/L) increased in the trained group after 12 weeks (742.0 +/- 158.5) in comparison with the baseline (319.6 +/- 40.2) and the sedentary (261.6 +/- 42.2) groups. Free fatty acids and glycogen stores (liver, soleus muscle and gastrocnemius muscle) increased after 12 weeks of monotonous training but aerobic and anaerobic performances were unchanged in relation to the sedentary group. The monotonous training at LM increased the level of energy substrates, unchanged aerobic performance, reduced anaerobic capacity and increased the serum CK concentration; however, the rats did not achieve the predicted training volume.
Subject: Exercise
animal use
sigmoid fit
Country: EUA
Editor: Sage Publications Inc
Citation: Laboratory Animals. Sage Publications Inc, v. 47, n. 1, n. 36, n. 42, 2013.
Rights: fechado
Identifier DOI: 10.1177/0023677212473715
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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