Respostas metabólicas durante e após sessões de exercício aeróbio de baixa intensidade com restrição de fluxo sanguíneo e intervalado de alta intensidade
| Autor: | Silva, Julio Cesar Gomes da |
|---|---|
| Přispěvatelé: | Sousa, Maria do Socorro Cirilo de |
| Jazyk: | portugalština |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Biblioteca Digital de Teses e Dissertações da UFPB Universidade Federal da Paraíba (UFPB) instacron:UFPB |
| Popis: | Introduction: aerobic exercise combined with blood flow restriction (AR+BFR) is being used as an alternative to the traditional high intensity training methods, however, regarding metabolic responses, it was verified that the lack of a standardized protocols on the researches with AR+BFR leads to limited conclusions on the excess post-exercise oxygen consumption (EPOC), energy expenditure and the use of energy subtract during and after training sessions. Aim: analyze the aerobic responses during and after exercise sessions of low intensity aerobic exercise (AE) with blood flow restriction (BFR) and high intensity interval training. Materials and methods: it is a quasi-experimental research with a cross over and randomized design, the sample was composed by twentytwo recreational athletes (age: 24.2 ± 2.8 years; body weight: 75.2 ± 8.2 kg; height: 176.6 ± 5.6 cm; body mass index: 24.1±1.9 kg/m²; e body fat: 15.6± 5.1 %), they underwent four experimental conditions with a seven-day washout between them: 1) CW+BFR – continuous walking at 40% of oxygen consumption peak (VO2peak) with 50% of BFR; 2) CW - continuous walking at 40% of VO2peak; 3) HIIT – high intensity interval training with six series of 90 seconds at 80% of VO2peak and active interval of 90 seconds of walking at 40% of VO2peak; and BFR – only the application of BFR technique without performing exercise. The experimental protocols had a time length of 18 minutes. The air was collected for 5 minutes before the sessions (rest), during protocols (18 minutes) and until 60 minutes after the end of the session. The aerobic energy expenditure of the session was measured by indirect calorimetry and the EPOC by the VO2, the QR during and after sessions was assessed by the relation between carbon dioxide production and oxygen consumption. Results: it was verified that aerobic energy expenditure on the HIIT protocol was significantly higher than the CW+BFR, CW and BFR (p0.05). It was observed significant interaction between protocol x time, on the protocol and time (p 0,05). Observouse interação significativa entre protocolo x tempo, no protocolo e no tempo para as variáveis da FC, VO2, QR e EPOC (p< 0,001). Na interação protocolo, após análise post hoc verificou-se que a FC, VO2, QR no protocolo de EIAI foi significativamente maior que os protocolos de CC+RFS; CC e TRFS ao longo dos 18 minutos da sessão. No EPOC não houve diferença significativa entre o EIAI e CC+RFS, no entanto ambos os protocolos foram significativamente maiores que a CC e a TRFS até o 20º minuto pós sessão. Conclusão: o protocolo CC+RFS proporcionou um gasto energético e um EPOC maior do que em uma sessão com a mesma intensidade sem RFS. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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