The Cardiopulmonary Exercise Testing With Vascular Occlusion Achieved, At Lower Speeds, Oxygen Uptake Similar To A Traditional Maximum Test

Autores

DOI:

https://doi.org/10.18316/sdh.v11i3.10142

Palavras-chave:

Aerobic, Exercise, Kaatsu, Oxygen consumption, Vascular occlusion.

Resumo

Introduction: Aerobic protocols and exercises are sought with less overload and that produce gains similar to traditional exercises. Therefore, understanding the changes that occur in incremental test with blood flow restriction(Tmax-BFR) and without blood flow restriction(Tmax-TRAD) is fundamental. Objective: To compare the responses of speeds, ventilatory thresholds(VT), maximum oxygen uptake(VO2max), blood lactate([la]), heart rate(HR) and Borg scale of Tmax-BFR vs. Tmax-TRAD. Methods: In this crossover study, non-athlete men who were submitted to two tests conditions(Tmax-BFR and Tmax-TRAD) were included. Data were analyzed using Generalized Estimating Equations and Bonferroni test. Values p<0.05 were considered significant. Results: Five men were included(Age:22.6±1.1years). The 1stVT, 2ndVT and VO2max were similar in both conditions. However, Tmax-BFR has reached 1stVT(Tmax-TRAD, 9.0±0.7km/h; Tmax-BFR, 8.2±0.5km/h), 2ndVT(Tmax-TRAD, 13.8±1.6km/h; Tmax-BFR, 11.6±1.8km/h) and VO2max(Tmax-TRAD, 15.6±2.9km/h; Tmax-BFR, 13.0±2.1km/h) at significantly lower speeds when compared to Tmax-TRAD(p<0.0001). HR at 2ndVT(Tmax-TRAD, 189.2±20.7bpm; Tmax-BFR, 173.2±10.6bpm; p=0.014) and Maximum HR(Tmax-TRAD, 203.6±14.9bpm; TBFR, 178.8±9.7bpm; p<0.0001) were higher in Tmax-TRAD. The Tmax-BFR showed higher levels of [la] when compared to Tmax-TRAD for 1stVT(p=0.019) and 2ndVT(p=0.005). Conclusion: There was a reduction in speed of 1stVT, 2ndVT and VO2max, as well as lower cardiac effort in the 2ndVT and HR at the end of the test in the Tmax-BFR condition.

Biografia do Autor

Leonardo Peterson dos Santos, Medical School, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil

Bachelor of Physical Education, Centro Universitário Metodista - IPAMaster's degree by the Graduation Program in Medical Sciences at UFRGS

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2023-11-21

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