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A-23 Free Communication/Poster - Endurance Training: MAY 28, 2008 7: 30 AM - 12: 30 PM: ROOM: Hall B

Adaptation Response In Rats In Relation Protocols Continuous And Interval Training In Treadmill


Board #25 May 28 11:00 AM - 12:30 PM

Pereira, Marcelo Marcos1; Araújo, Gustavo Gomes2; Teixeira, Luis Felipe Milano3; Reis, Ivan Gustavo Masseli4; Tangerino, Luiz Cláudio Silva1; Souza, Rodrigo Duarte1; Vazatta, Roberto1; Cavaglieri, Cláudia Regina1; Gobatto, Cláudio Alexandre1; Verlengia, Rozangela1

Author Information
Medicine & Science in Sports & Exercise: May 2008 - Volume 40 - Issue 5 - p S175
doi: 10.1249/01.mss.0000322222.36873.8b
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Interval training (IT) or continuous training (CT) promove similar effect in the aerobic resistance. In order to have positive effects, the sessions must be intense and to promote break of the cellular homeostasis and, consequently, the adaptation and the improvement of the performance (PE). However, conditions of high intensity stress induced by physical exercise can cause the loss of performance, due to the formation of biochemical metabolics.

PURPOSE: The study aimed at comparing two types training protocols in relation of metabolic adaptation and improvement of the performance.

METHODS: 70 male Wistar rats have been used (190-210 g) randomly separated in two groups: continuous training Group (CTG-n=30), Interval training Group (ITG-n=30) and control group (C-n=10). The training has been carried out with the frequency of 5 days a week, during 8 weeks and based on intensities which corresponded to the anaerobic threshold (LAn). The training load was readjusted to long training time of the LAn test. The CT was realized at 95 % LAn with duration of 30' and IT was carried through in 7 series (1-5 of 4min.; 6-7 of 5 min. of duration) with LAn different (85%, 95% and 105%, respectively). 48 hours after the last session of training the groups CT and IT were sacrificed. The biochemical metabolites have been evaluated in the serum by means of commercial kits. The data have been evaluated using ANOVA statistics procedure with post-hock test of tukey (p< 0,05).

RESULTS: The urea levels and kinase creatine were increased 13.2% and 50.4% in observed in groups ITG compared with the CTG.

CONCLUSIONS: The data suggest that interval training induced better skeletal muscle catabolism, as well as muscular injury, although there were periods of recovery, demonstrating the necessity of greater periods of recovery during the training, shorter periods of training, variation of the intensity and volume which characterizes the periods of the training, resulting in improvements of the performance.

©2008The American College of Sports Medicine