Wang Dizhi, Zhang Peizhen, Li Jin
School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing, China.
Division of Sports Science and Physical Education, Tsinghua University, Beijing, China.
Front Physiol. 2023 Jun 16;14:1190109. doi: 10.3389/fphys.2023.1190109. eCollection 2023.
To determine the effects of weight reduction schemes using the exercise intensities corresponding to maximal fat oxidation (FATmax) and crossover point (COP). The effects of different intervention protocols on blood lipid metabolism were compared to explore how fat can be consumed and used more efficiently and provide a theoretical basis for weight loss through exercise. This study included 30 young overweight women randomly divided into the COP, FATmax, and control groups. Participants in the COP and FATmax groups exercised for 45 min four times a week for 8 weeks after the individual treadmill exercise test. The control group did not perform any exercise. After 8 weeks of training, participants in the COP group significantly decreased weight (2.6 ± 3.3 kg), body mass index (0.91 ± 1.26 kg/m), body fat percentage (1.21% ± 1.50%), and fat mass (1.90 ± 2.30 kg) ( < 0.05). They also had significantly decreased hip circumference (4.8 ± 3.3 cm), serum apolipoprotein B (ApoB) levels (15.48 ± 14.19 mg/dL), and ApoB/apolipoprotein AI (ApoAI) ratios (0.47 ± 0.37) ( < 0.01). However, their serum ApoAI levels were significantly increased (14.18 ± 10.24 mg/dL; < 0.01). Participants in the FATmax group had significantly decreased hip circumference (2.4 ± 2.0 cm), serum ApoB levels (14.49 ± 11.00 mg/dL), and ApoB/ApoAI ratios (0.59 ± 0.30) ( < 0.01) but significantly increased serum ApoAI levels (29.53 ± 13.29 mg/dL; < 0.01). No significant changes in physiological indexes were observed in participants in the control group. Personalised exercise intervention positively affected central obesity, effectively improving blood lipid metabolism and fat oxidation, reducing cardiovascular disease risk in young overweight women. COP training improved weight and body composition better than the FATmax exercise, while the latter provided greater improvements in serum ApoAI levels.
为了确定采用对应最大脂肪氧化（FATmax）和交叉点（COP）的运动强度的减重方案的效果。比较不同干预方案对血脂代谢的影响，以探索如何更有效地消耗和利用脂肪，并为通过运动减肥提供理论依据。本研究纳入30名年轻超重女性，随机分为COP组、FATmax组和对照组。在进行个体跑步机运动测试后，COP组和FATmax组的参与者每周进行4次45分钟的运动，持续8周。对照组不进行任何运动。训练8周后，COP组参与者的体重（2.6±3.3千克）、体重指数（0.91±1.26千克/米）、体脂百分比（1.21%±1.50%）和脂肪量（1.90±2.30千克）显著下降（P<0.05）。她们的臀围（4.8±3.3厘米）、血清载脂蛋白B（ApoB）水平（15.48±14.19毫克/分升）和ApoB/载脂蛋白AI（ApoAI）比值（0.47±0.37）也显著下降（P<0.01）。然而，她们的血清ApoAI水平显著升高（14.18±10.24毫克/分升；P<0.01）。FATmax组参与者的臀围（2.4±2.0厘米）、血清ApoB水平（14.49±11.00毫克/分升）和ApoB/ApoAI比值（0.59±0.30）显著下降（P<0.01），但血清ApoAI水平显著升高（29.53±13.29毫克/分升；P<0.01）。对照组参与者的生理指标未观察到显著变化。个性化运动干预对中心性肥胖有积极影响，有效改善血脂代谢和脂肪氧化，降低年轻超重女性患心血管疾病的风险。COP训练在改善体重和身体成分方面比FATmax运动更好，而后者在提高血清ApoAI水平方面有更大改善。
