Abstract:
The primary aim of the present investigation was to compare the acute physiological and perceptual responses between two modes of interval training using a randomized crossover design. More specifically, eleven young adult participants (23 ± 4 years, 77 ± 13 kg, 178 ± 7 cm) performed two protocols: one composed of whole-body calisthenics exercises and another on a cycle ergometer. Both protocols encompassed eight 20 s bouts at intensities equivalent to all-out (HIIT-WB) and 170% of the maximal power output (HIIT-C), respectively, interspersed with 10 s of passive rest. The peak and average heart rate, the rating of perceived effort, and blood lactate, creatine kinase, and lactate dehydrogenase concentrations were measured. Aside from blood lactate (HIIT-WB = 9.4 ± 1.8 mmo/L; HIIT-C = 12.5 ± 2.5 mmol/L, p < 0.05) and the rating of perceived exertion (HIIT-WB = 8.8 ± 0.9; HIIT-C = 9.6 ± 0.5, p < 0.05), physiological responses did not significantly differ between protocols (all p > 0.05), with high average heart rate values (HIIT-WB = 86 ± 6% HRmax; HIIT-C = 87 ± 4% HRmax) and a low magnitude of muscle damage, as inferred by CK and LDH concentrations (HIIT-WB = 205.9 ± 56.3 and 203.5 ± 72.4 U/L; HIIT-C = 234.5 ± 77.1 and 155.1 ± 65.3 U/L), respectively. It can be concluded that both protocols elicit vigorous heart rate responses and a low magnitude of muscle damage and, therefore, appear as viable alternatives to improve aerobic fitness. The inclusion of a whole-body HIIT protocol may be an interesting alternative for training prescription in relation to more common interval training protocols.
摘要:
本研究的主要目的是使用随机交叉设计比较两种间歇训练模式之间的急性生理和知觉反应。更具体地说,11名年轻成人参与者(23±4岁,77±13kg,178±7厘米)执行了两种方案:一种由全身健美操练习组成,另一种在自行车测功机上进行。两种协议都包含8次20s回合,强度相当于全力以赴(HIIT-WB)和最大功率输出(HIIT-C)的170%,分别,散布着10s的被动休息。峰值和平均心率,感知努力的评级,和血乳酸,肌酸激酶,并测定乳酸脱氢酶浓度。除血乳酸外(HIIT-WB=9.4±1.8mmo/L;HIIT-C=12.5±2.5mmol/L,p<0.05)和感知劳累的等级(HIIT-WB=8.8±0.9;HIIT-C=9.6±0.5,p<0.05),各方案之间的生理反应没有显着差异(所有p>0.05),具有高平均心率值(HIIT-WB=86±6%HRmax;HIIT-C=87±4%HRmax)和低程度的肌肉损伤,根据CK和LDH浓度推断(HIIT-WB=205.9±56.3和203.5±72.4U/L;HIIT-C=234.5±77.1和155.1±65.3U/L),分别。可以得出结论,两种方案都引起剧烈的心率反应和低程度的肌肉损伤,因此,似乎是改善有氧健身的可行替代品。包含全身HIIT协议可能是与更常见的间歇训练协议相关的训练处方的有趣替代方案。