Cao Jingguo, Lei Siman, Zhao Tong, Xie Yuting, Zhou Zunqiang, Cheng Sulin, Wang Xiuqiang
Exercise, Health and Technology Centre, Department of Physical Education, Shanghai Jiao Tong University, Shanghai 200240, China.
Faculty of Education, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China.
J Clin Med. 2022 Feb 18;11(4):1086. doi: 10.3390/jcm11041086.
(1) Background: Evidence suggests that aerobic exercise and high-intensity interval training (HIIT) might increase fat oxidation and reduce fat. However, limited research has examined the effects of combining progressive aerobic exercise and HIIT interventions in sedentary adults with overweight and obesity, and differences in its effects between men and women remain unclear. The purpose of this study was to investigate the effects of combined progressive aerobic exercise and HIIT (CAEH) on fat oxidation and fat reduction in sedentary Chinese adults and compare sex differences in sedentary adults after seven weeks. (2) Methods: Eighty-four sedentary obese adults were enrolled and allocated to two groups in baseline (experimental (EXP) group:42; control (CON) group:42), and fifty-six subjects (EXP:31; CON:25) completed the experiments and were included in the final analysis. Subjects in the EXP group performed CAEH three times per week for seven weeks. Subjects in the CON group were advised to continue with their normal daily activities. Anthropometric, lipid profile, cardiorespiratory fitness, and fat oxidation outcomes were assessed before and after the intervention. (3) Results: After seven weeks of the CAEH intervention, compared with the CON group, the EXP group showed significant increases in fat oxidation at rest (FO_rest) (+0.03 g/min, < 0.01), maximal fat oxidation (MFO) (+0.05 g/min, < 0.01), and maximal oxygen intake (VOmax) (+3.2 mL/kg/min, < 0.01). The changes in the percentages of the FO_rest (+57%) and the VOmax (+16%) were significantly greater (+20%, +6%) in males than in females ( < 0.05, < 0.05). The body mass index (BMI) (-1.2 kg/m, < 0.01), body fat percentage (-3.2%, < 0.001), visceral fat area (-12.8 cm, < 0.001), and total cholesterol (TC) levels (-0.4 mmol/L, < 0.05) were significantly decreased in the EXP group. (4) Conclusions: Seven weeks of the CAEH intervention effectively improved FO_rest, MFO, and VOmax in sedentary obese adults, and the improvements in FO_rest and VOmax were more pronounced in males than in females. CAEH also improved body composition and TC levels in sedentary obese adults.
(1) 背景：有证据表明有氧运动和高强度间歇训练（HIIT）可能会增加脂肪氧化并减少脂肪。然而，针对超重和肥胖的久坐不动成年人，将渐进式有氧运动和HIIT干预相结合的效果的研究有限，且男女之间效果的差异仍不明确。本研究的目的是调查渐进式有氧运动和HIIT相结合（CAEH）对久坐不动的中国成年人脂肪氧化和减脂的影响，并比较七周后久坐不动成年人中的性别差异。(2) 方法：招募了84名久坐不动的肥胖成年人，并在基线时分为两组（实验组（EXP）：42名；对照组（CON）：42名），56名受试者（EXP：31名；CON：25名）完成了实验并纳入最终分析。EXP组的受试者每周进行三次CAEH，共七周。CON组的受试者被建议继续其正常的日常活动。在干预前后评估人体测量学、血脂谱、心肺适能和脂肪氧化结果。(3) 结果：经过七周的CAEH干预后，与CON组相比，EXP组的静息脂肪氧化（FO_rest）显著增加（+0.03克/分钟，<0.01）、最大脂肪氧化（MFO）显著增加（+0.05克/分钟，<0.01）以及最大摄氧量（VOmax）显著增加（+3.2毫升/千克/分钟，<0.01）。男性的FO_rest（+57%）和VOmax（+16%）的变化百分比显著高于女性（分别为+20%，+6%）（<0.05，<0.05）。EXP组的体重指数（BMI）（-1.2千克/米²，<0.01）、体脂百分比（-3.2%，<0.001）、内脏脂肪面积（-12.8平方厘米，<0.001）和总胆固醇（TC）水平（-0.4毫摩尔/升，<0.05）显著降低。(4) 结论：七周的CAEH干预有效地改善了久坐不动的肥胖成年人的FO_rest、MFO和VOmax，且男性在FO_rest和VOmax方面的改善比女性更明显。CAEH还改善了久坐不动的肥胖成年人的身体成分和TC水平。
