Abstract：
Interval-training is widely implemented among populations with obesity to decrease metabolic-disorders; however, high-intensity-interval-training (HIIT) has rarely been studied in severely obese adolescent girls. Therefore, the aim of this study was to compare the effects of 8 weeks of (HIIT) or moderate-intensity interval-training (MIIT), on cardiometabolic risk factors and hormonal-ratios in severely-obese-girls. For this aim, 35 female-adolescents (14.4 ± 1.4 years) were assigned randomly into HIIT (n = 12) and MIIT (n = 12), groups and a control group (CG, n = 11). Both training groups significantly improved (p < 0.05): the body-mass, body-mass-index (BMIp95), body-fat (BF%), waist-circumference (WC), mean-arterial-pressure (MAP), with a slight increase in the HIIT group. However, HIIT induced greater improvements on the maximal oxygen uptake (VO2MAX) and the speed related (24.7 and 11.8%) compared to MIIT. Higher improvements occurred in HIIT group related to leptin and adiponectin concentrations and the A/L ratio at (p < 0.001). In conclusion, the findings indicate that both HIIT and MIIT can positively influence body composition and cardio-respiratory fitness. Given the significant correlation noted between the A/L ratio, BMIp95, BF%, and MAP post-HIIT, this training modality may be considered a more advantageous approach over MIIT for mitigating cardio-metabolic issues in severely obese adolescent girls.
摘要：
在肥胖人群中广泛实施间歇训练，以减少代谢紊乱；然而，高强度间歇训练(HIIT)很少在严重肥胖的青春期女孩中进行研究.因此,这项研究的目的是比较8周（HIIT）或中等强度间歇训练（MIIT）的效果，严重肥胖女孩的心脏代谢危险因素和激素比率。为了这个目标,35名青少年女性（14.4±1.4岁）被随机分为HIIT（n=12）和MIIT（n=12），组和对照组(CG，n=11）。两个训练组均显著改善(p<0.05):体质量,身体质量指数（BMIp95），体脂（BF%），腰围（WC），平均动脉压(MAP),HIIT组略有增加。然而,与MIIT相比，HIIT在最大摄氧量（VO2MAX）和相关速度（24.7％和11.8％）上引起了更大的改善。HIIT组的改善与瘦素和脂联素浓度以及A/L比有关（p<0.001）。总之,研究结果表明，HIIT和MIIT都可以积极影响身体成分和心肺健康。鉴于A/L比之间的显著相关性，BMIp95,BF%,和MAP后HIIT,与MIIT相比,这种训练模式可能被认为是缓解重度肥胖少女心脏代谢问题的更有利方法.
