Defining the number of bouts and oxygen uptake during the "Tabata protocol" performed at different intensities

Physiology & Behavior
Ricardo B VianaPaulo Gentil

Abstract

It is usually reported that the Tabata protocol (TP) is performed with eight bouts of 20:10 intervals at a load equivalent to 170% of i V̇ O2max. However, the feasibility of accumulating 160 s of work at 170% i V̇ O2max has been questioned. This article tested the intensity that would allow the performance of the original TP on a cycle ergometer, and measured the highest value of oxygen consumption (V̇ O2) obtained during the TP and the time spent above 90% of the maximal oxygen uptake (V̇ O2max) during the TP performed at different intensities. Thirteen young active males (25.9 ± 5.5 years, 67.9 ± 9.2 kg, 1.70 ± 0.06 m, 23.6 ± 3.1 kg·m-2) participated in the study. Participants performed a graded exertion test (GXT) on a cycle ergometer to obtain maximum oxygen consumption (V̇ O2max) and the intensity associated with V̇ O2max (i V̇ O2max). V̇ O2, maximal heart rate (HRmax), and number of bouts performed were evaluated during the TP performed at 115%, 130%, and 170% of i V̇ O2max. V̇ O2max, HRmax, and iV̇ O2max were 51.8 ± 8.0 mL.kg-1·min-1, 186 ± 10 bpm, and 204 ± 26 W, respectively. The number of bouts performed at 115% (7 ± 1 bouts) was higher than at 130% (5 ± 1 bouts) and 170% (4 ± 1 bouts) (p < .0001). The highest V̇ O2 a...Continue Reading

Citations

Oct 2, 2019·Frontiers in Psychiatry·Ricardo Borges VianaClaudio Andre Barbosa de Lira
Aug 28, 2020·Biology·Daniel SouzaPaulo Gentil
Apr 21, 2019·The Journal of Physiological Sciences : JPS·Izumi Tabata

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