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Increased lactate threshold after five weeks of treadmill aerobic training in rats / Aumento do limiar de lactato após cinco semanas de treinamento aeróbio em esteira em ratos
Brito Vieira, WH.; Halsberghe, MJE.; Schwantes, MLB.; Perez, SEA.; Baldissera, V.; Prestes, P.; Farias, DL.; Parizotto, NA..
  • Brito Vieira, WH.; Federal University of Rio Grande do Norte - UFRN. Department of Physical Therapy. Natal. BR
  • Halsberghe, MJE.; Federal University of Rio Grande do Norte - UFRN. Department of Physical Therapy. Natal. BR
  • Schwantes, MLB.; Federal University of Rio Grande do Norte - UFRN. Department of Physical Therapy. Natal. BR
  • Perez, SEA.; Federal University of Rio Grande do Norte - UFRN. Department of Physical Therapy. Natal. BR
  • Baldissera, V.; Federal University of Rio Grande do Norte - UFRN. Department of Physical Therapy. Natal. BR
  • Prestes, P.; Federal University of Rio Grande do Norte - UFRN. Department of Physical Therapy. Natal. BR
  • Farias, DL.; Federal University of Rio Grande do Norte - UFRN. Department of Physical Therapy. Natal. BR
  • Parizotto, NA.; Federal University of Rio Grande do Norte - UFRN. Department of Physical Therapy. Natal. BR
Braz. j. biol ; 74(2): 444-449, 5/2014. tab, graf
Article in English | LILACS | ID: lil-719261
ABSTRACT
The aim of the present study was to analyse the lactate threshold (LT) changes in rats submitted to an aerobic treadmill-training programme. Twenty-five Wistar rats were divided into two groups a sedentary control group (CG), and a trained group (TG) submitted to an aerobic training during 5 weeks. All the animals were submitted to an incremental treadmill exercise test in order to determine LT. There was an increase in the maximum running speed in the TG (from 32.25 ± 1.27 to 47.75 ± 3.13 m.min–1 – p = 0.001), and running speed at LT (from 26.21 ± 1.15 to 35.30 ± 2.24 m.min–1 – p = 0.004), a part from the reduction in blood lactate at LT. LT can be determined in rats, and aerobic training induced positive oxidative physiological adaptations in the animals.
RESUMO
O objetivo do presente estudo foi analisar as mudanças no limiar de lactato (LL) em ratos submetidos a um programa de treinamento aeróbio em esteira. Vinte e cinco ratos Wistar foram divididos em dois grupos um grupo controle sedentário (CG), e um grupo treinado (GT) submetido a um treinamento aeróbio durante 5 semanas. Todos os animais foram submetidos a um teste de exercício incremental em esteira, a fim de determinar o LL. Houve um aumento na velocidade máxima de corrida no GT (de 32,25 ± 1,27 para 47,75 ± 3,13 m.min–1 - p = 0,001), e velocidade de corrida no LL (de 26,21 ± 1,15 para 35,30 ± 2,24 m.min–1 - p = 0,004), além da redução na concentração de lactato no LL. O LL pode ser determinado em ratos e o treinamento aeróbio induziu a adaptações fisiológicas oxidativas positivas nos animais.
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Full text: Available Index: LILACS (Americas) Main subject: Oxygen Consumption / Physical Conditioning, Animal / Running / Adaptation, Physiological / Lactates Limits: Animals Language: English Journal: Braz. j. biol Journal subject: Biology Year: 2014 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Rio Grande do Norte - UFRN/BR

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Full text: Available Index: LILACS (Americas) Main subject: Oxygen Consumption / Physical Conditioning, Animal / Running / Adaptation, Physiological / Lactates Limits: Animals Language: English Journal: Braz. j. biol Journal subject: Biology Year: 2014 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Rio Grande do Norte - UFRN/BR