Liu Jingxin, Zhu Lin, Su Yu
Research Center for Physical Fitness and Health Promotion of Adolescent, Guangzhou Sport University, Guangzhou, China.
College of Physical Education, Shaoguan University, Shaoguan, China.
Front Physiol. 2020 Apr 3;11:214. doi: 10.3389/fphys.2020.00214. eCollection 2020.
The main objective of this meta-analysis was to compare the effectiveness of high-intensity interval training (HIIT) and of moderate-intensity continuous training (MICT) on cardiometabolic health in childhood obesity and determine whether HIIT is a superior form of training in managing obese children's metabolic health. Relevant studies published in PubMed, Web of Science, Embase, the Cochrane Library, EBSCO, and CNKI were searched, restricted to those published from inception to 1 October 2019. Only randomized controlled trials (RCTs) depicting the effect of HIIT on childhood obesity were included. Nine RCTs involving 309 participants were included in the meta-analysis. Among the 309 participants, 158 subjects were randomized for HIIT, while the others were randomized for MICT. Significant differences were observed in the body weight (mean difference [MD] = -5.45 kg, = 0.001), body mass index (BMI; MD = -1.661 kg/m, = 0.0001), systolic blood pressure (SBP; MD = -3.994 mmHg, = 0.003), and diastolic blood pressure (DBP; MD = -3.087 mmHg, = 0.0001) in the HIIT group relative to the baseline values. Similar effects were found in the MICT group, as depicted by the significantly decreased values for body weight (MD = -4.604 kg, = 0.0001), BMI (MD = -2.366 kg/m, p = 0.0001), SBP (MD = -3.089 mmHg, = 0.019), and DBP (MD = -3.087 mmHg, = 0.0001). However, no significant differences were observed in the changes in body weight, BMI, SBP, or DBP between the HIIT and MICT groups. Furthermore, our studies showed that both HIIT and MICT could significantly improve VO (HIIT, MD = 4.17 ml/kg/min, 95% CI: 3.191 to 5.163, = 0.0001; MICT, MD = 1.704 ml/kg/min, 95% CI: 0.279 to 3.130, = 0.019). HIIT also showed more positive effects on VO (SMD = 0.468, 95% CI: 0.040 to 0.897, = 0.006) than MICT. HIIT positively affects the cardiometabolic risk factors in childhood obesity. Similar positive effects on body composition and blood pressure were established. Moreover, HIIT can improve cardiorespiratory fitness more significantly than MICT. These findings indicate that HIIT may be an alternative and effective training method for managing childhood obesity. CRD42018111308.
本荟萃分析的主要目的是比较高强度间歇训练（HIIT）和中等强度持续训练（MICT）对儿童肥胖患者心脏代谢健康的有效性，并确定HIIT是否是管理肥胖儿童代谢健康的更优训练形式。检索了发表于PubMed、科学网、Embase、考克兰图书馆、EBSCO和中国知网的相关研究，限于从创刊至2019年10月1日发表的研究。仅纳入描述HIIT对儿童肥胖影响的随机对照试验（RCT）。荟萃分析纳入了9项涉及309名参与者的RCT。在这309名参与者中，158名受试者被随机分配至HIIT组，其余受试者被随机分配至MICT组。与基线值相比，HIIT组在体重（平均差[MD]= -5.45 kg，P = 0.001）、体重指数（BMI；MD = -1.661 kg/m²，P = 0.0001）、收缩压（SBP；MD = -3.994 mmHg，P = 0.003）和舒张压（DBP；MD = -3.087 mmHg，P = 0.0001）方面观察到显著差异。MICT组也发现了类似效果，体重（MD = -4.604 kg，P = 0.0001）、BMI（MD = -2.366 kg/m²，P = 0.0001）、SBP（MD = -3.089 mmHg，P = 0.019）和DBP（MD = -3.087 mmHg，P = 0.0001）值显著降低。然而，HIIT组和MICT组在体重、BMI、SBP或DBP变化方面未观察到显著差异。此外，我们的研究表明，HIIT和MICT均可显著改善最大摄氧量（VO₂）（HIIT，MD = 4.17 ml/kg/min，95%置信区间：3.191至5.163，P = 0.0001；MICT，MD = 1.704 ml/kg/min，95%置信区间：0.279至3.130，P = 0.019）。与MICT相比，HIIT对VO₂也显示出更积极的影响（标准化均数差[SMD]= 0.468，95%置信区间：0.040至0.897，P = 0.006）。HIIT对儿童肥胖的心脏代谢危险因素有积极影响。对身体成分和血压也有类似的积极影响。此外，HIIT比MICT能更显著地改善心肺适能。这些发现表明，HIIT可能是管理儿童肥胖的一种替代且有效的训练方法。国际系统评价注册编号：CRD42018111308
