Protzen Gabriel V, Bartel Charles, Coswig Victor S, Gentil Paulo, Del Vecchio Fabricio B
Physical Education College, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil.
Physical Education Center Admiral Adalberto Nunes, Brazilian Navy, Rio de Janeiro, Brazil.
PeerJ. 2020 Oct 12;8:e9791. doi: 10.7717/peerj.9791. eCollection 2020.
One of the most popular high-intensity interval exercises is the called "Tabata Protocol". However, most investigations have limitations in describing the work intensity, and this fact appears to be due to the protocol unfeasibility. Furthermore, the physiological demands and energetic contribution during this kind of exercise remain unclear.
Eight physically active students (21.8 ± 3.7 years) and eight well-trained cycling athletes (27.8 ± 6.4 years) were enrolled. In the first visit, we collected descriptive data and the peak power output (PPO). On the next three visits, in random order, participants performed interval training with the same time structure (effort:rest 20s:10s) but using different intensities (115%, 130%, and 170% of PPO). We collected the number of sprints, power output, oxygen consumption, blood lactate, and heart rate.
The analysis of variance for multivariate test (number of sprints, power output, blood lactate, peak heart rate and percentage of maximal heart rate) showed significant differences between groups ( = 9.62; = 0.001) and intensities ( = 384.05; < 0.001), with no interactions ( = 0.94; = 0.57). All three energetic contributions and intensities were different between protocols. The higher contribution was aerobic, followed by alactic and lactic. The aerobic contribution was higher at 115%PPO, while the alactic system showed higher contribution at 130%PPO. In conclusion, the aerobic system was predominant in the three exercise protocols, and we observed a higher contribution at lower intensities.
最流行的高强度间歇运动之一是所谓的“塔巴塔协议”。然而，大多数研究在描述工作强度方面存在局限性，这一事实似乎是由于该协议不可行。此外，这种运动期间的生理需求和能量贡献仍不清楚。
招募了八名身体活跃的学生（21.8±3.7岁）和八名训练有素的自行车运动员（27.8±6.4岁）。在第一次就诊时，我们收集了描述性数据和峰值功率输出（PPO）。在接下来的三次就诊中，参与者以随机顺序进行间歇训练，时间结构相同（用力：休息20秒：10秒），但使用不同强度（PPO的115%、130%和170%）。我们收集了冲刺次数、功率输出、耗氧量、血乳酸和心率。
多变量测试（冲刺次数、功率输出、血乳酸、心率峰值和最大心率百分比）的方差分析显示，组间（=9.62；=0.001）和强度间（=384.05；<0.001）存在显著差异，无交互作用（=0.94；=0.57）。所有三种能量贡献和强度在不同协议之间均不同。贡献最高的是有氧，其次是无氧和乳酸。有氧贡献在PPO的115%时较高，而无氧系统在PPO的130%时贡献较高。总之，有氧系统在三种运动协议中占主导地位，并且我们发现在较低强度下贡献更高。
