High-intensity interval training improves metabolic syndrome and body composition in outpatient cardiac rehabilitation patients with myocardial infarction
High-intensity interval training improves metabolic syndrome and body composition in outpatient cardiac rehabilitation patients with myocardial infarction
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DOI：
10.1186/s12933-019-0907-0
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发表时间：
2019-08-14
影响因子：
9.3
通讯作者：
Olson, Thomas P.
中科院分区：
文献类型：
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作者：
Dun, Yaoshan;Thomas, Randal J.;Olson, Thomas P.
目的探讨高强度间歇训练(HIIT)对心脏康复(CR)合并心肌梗死(MI)患者代谢综合征(METS)和体成分的影响。方法我们对2015-2018年间连续174例因心肌梗死而进入CR的METS患者进行了回顾性筛查。我们包括56名患者，他们完成了36个CR疗程，并在术后进行了双能X线骨密度仪检查。在这些患者中，42人参加了HIIT，14人参加了中等强度的持续训练(MICT)。低强度训练包括4~8次高强度训练(30~60RPE15~17[博格6~20]S)和低强度训练(RPE 12~14训练1~5min)，MICT包括RPE12~14训练20~45min。比较MICT组和HIIT组的METS和身体成分变量。结果与MICT相比，HIIT组的METS(相对风险=0.5，95%CI 0.33-0.75，P<；.001)、METS z评分(-3.6+/-2.9比-0.8+/-3.8，P<；；改善的蛋氨酸成分：腰围(-3+/-5比1+/-5厘米，P=0.01)，空腹血糖(-25.8+/-34.8比-3.9+/-25.8 mg/dl，P<；.001)，甘油三酯(-67.80+/-86.7比-10.4+/-105.3 mg/dl，P<；)；舒张压(-7+/-11对0+/-13 mm Hg，P=.001)。与MICT组相比，HIIT组的体脂质量下降幅度更大(-2.1+/-2.1比0+/-2.2公斤，P=0.002)，瘦体重增加(0.9+/-1.9比-0.9+/-3.2公斤，P=0.01)。在匹配运动能量消耗后，HIIT导致的METS z分数(P<；.001)、METS成分(P<；.05)、体脂质量(P=.002)、体脂(P=.01)和瘦质量(P=.03)的改善持续存在。结论我们的数据表明，与MICT相比，有监督的HIIT对接受CR的MI患者的METS和体成分有更大的改善。
Background To examine the effect of high-intensity interval training (HIIT) on metabolic syndrome (MetS) and body composition in cardiac rehabilitation (CR) patients with myocardial infarction (MI). Methods We retrospectively screened 174 consecutive patients with MetS enrolled in CR following MI between 2015 and 2018. We included 56 patients who completed 36 CR sessions and pre-post dual-energy X-ray absorptiometry. Of these patients, 42 engaged in HIIT and 14 in moderate-intensity continuous training (MICT). HIIT included 4-8 intervals of high-intensity (30-60 s at RPE 15-17 [Borg 6-20]) and low-intensity (1-5 min at RPE < 14), and MICT included 20-45 min of exercise at RPE 12-14. MetS and body composition variables were compared between MICT and HIIT groups. Results Compared to MICT, HIIT demonstrated greater reductions in MetS (relative risk = 0.5, 95% CI 0.33-0.75, P < .001), MetS z-score (- 3.6 +/- 2.9 vs. - 0.8 +/- 3.8, P < .001) and improved MetS components: waist circumference (- 3 +/- 5 vs. 1 +/- 5 cm, P = .01), fasting blood glucose (- 25.8 +/- 34.8 vs. - 3.9 +/- 25.8 mg/dl, P < .001), triglycerides (- 67.8 +/- 86.7 vs. - 10.4 +/- 105.3 mg/dl, P < .001), and diastolic blood pressure (- 7 +/- 11 vs. 0 +/- 13 mmHg, P = .001). HIIT group demonstrated greater reductions in body fat mass (- 2.1 +/- 2.1 vs. 0 +/- 2.2 kg, P = .002), with increased body lean mass (0.9 +/- 1.9 vs. - 0.9 +/- 3.2 kg, P = .01) than the MICT. After matching for exercise energy expenditure, HIIT-induced improvements persisted for MetS z-score (P < .001), MetS components (P < .05), body fat mass (P = .002), body fat (P = .01), and lean mass (P = .03). Conclusions Our data suggest that, compared to MICT, supervised HIIT results in greater improvements in MetS and body composition in MI patients with MetS undergoing CR.