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Interval versus continuous training with identical workload: physiological and aerobic capacity adaptations
G. G. de Araujo, C. A. Gobatto, M. Marcos-Pereira, I. G. Dos Reis, R. Verlengia
Language English Country Czech Republic
Document type Journal Article, Research Support, Non-U.S. Gov't
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- MeSH
- Aerobiosis physiology MeSH
- Anaerobic Threshold physiology MeSH
- Running physiology MeSH
- Adaptation, Physiological physiology MeSH
- Glucose metabolism MeSH
- Glycogen metabolism MeSH
- Liver physiology MeSH
- Physical Conditioning, Animal physiology MeSH
- Corticosterone metabolism MeSH
- Muscle, Skeletal physiology MeSH
- Rats MeSH
- Fatty Acids, Nonesterified metabolism MeSH
- Rats, Wistar MeSH
- Body Weight physiology MeSH
- Testosterone metabolism MeSH
- Animals MeSH
- Check Tag
- Rats MeSH
- Male MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
The interval model training has been more recommended to promote aerobic adaptations due to recovery period that enables the execution of elevated intensity and as consequence, higher workload in relation to continuous training. However, the physiological and aerobic capacity adaptations in interval training with identical workload to continuous are still uncertain. The purpose was to characterize the effects of chronic and acute biomarkers adaptations and aerobic capacity in interval and continuous protocols with equivalent load. Fifty Wistar rats were divided in three groups: Continuous training (GTC), interval training (GTI) and control (CG). The running training lasted 8 weeks (wk) and was based at Anaerobic Threshold (AT) velocity. GTI showed glycogen super-compensation (mg/100 mg) 48 h after training session in relation to CG and GTC (GTI red gastrocnemius (RG)=1.41+/-0.16; GTI white gastrocnemius (WG)=1.78+/-0.20; GTI soleus (S)=0.26+/-0.01; GTI liver (L)=2.72+/-0.36; GTC RG=0.42+/-0.17; GTC WG=0.54+/-0.22; GTC S=0.100+/-0.01; GTC L=1.12+/-0.24; CG RG=0.32+/-0.05; CG WG=0.65+/-0.17; CG S=0.14+/-0.01; CG L=2.28+/-0.33). The volume performed by GTI was higher than GTC. The aerobic capacity reduced 11 % after experimental period in GTC when compared to GTI, but this change was insignificant (19.6+/-5.4 m/min; 17.7+/-2.5 m/min, effect size = 0.59). Free fatty acids and glucose concentration did not show statistical differences among the groups. Corticosterone concentration increased in acute condition for GTI and GTC. Testosterone concentration reduced 71 % in GTC immediately after the exercise in comparison to CG. The GTI allowed positive adaptations when compared to GTC in relation to: glycogen super-compensation, training volume performed and anabolic condition. However, the GTI not improved the aerobic performance.
Laboratory of Sport Applied Physiology Campinas State University UNICAMP FCA Limeira SP Brazil
Physical Education Faculty of Sciences of Health Methodist University of Piracicaba São Paulo Brazil
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