Kantorowicz Malgorzata, Szymura Jadwiga, Szygula Zbigniew, Kusmierczyk Justyna, Maciejczyk Marcin, Wiecek Magdalena
Ph.D. Studies, Faculty of Physical Education and Sport, University School of Physical Education in Kraków, Kraków, Poland.
Department of Clinical Rehabilitation, Faculty of Motor Rehabilitation, University School of Physical Education in Kraków, Kraków, Poland.
Front Physiol. 2021 Sep 3;12:726783. doi: 10.3389/fphys.2021.726783. eCollection 2021.
Excess visceral adipose tissue is associated with insulin resistance and other metabolic disorders, including deregulation of adipokine secretion, which may be corrected by aerobic exercise training. Asprosin is a novel adipokine responsible for the regulation of appetite and the release of glucose from the liver, and its levels are pathologically elevated in obesity. The aim of the study was to evaluate the effects of 8-week Nordic walking (NW) training at maximal fat oxidation intensity (FAT ) on changes in body mass, as well as those in insulin resistance and asprosin levels among young women with visceral obesity and metabolic disorders.
The study was completed by 14 women (30.14 ± 3.63 years) representing low levels of physical activity, visceral obesity (waist circumference 105.50 ± 14.87 cm, BMI 33.85 ± 5.48 kg/m) and with metabolic disorders, who for 8 weeks (three times a week, 60 min), participated in NW training at the FAT intensity (61.92 ± 6.71% HR , 42.33 ± 8.69% VO) controlled on the basis of heart rate (114.21 ± 14.10 bpm).
After 4 and 8 weeks of NW training, a significant decrease in the concentration of asprosin, waist and hip circumference (HC), waist-to-height ratio and body adiposity index (BAI) ( < 0.05, large effect size) were found.
The 8-week NW training at an FAT intensity decreases the concentration of asprosin in the blood as well as visceral obesity in young women with metabolic disorders.
内脏脂肪组织过多与胰岛素抵抗及其他代谢紊乱有关，包括脂肪因子分泌失调，而有氧运动训练可能纠正这种情况。阿朴脂蛋白是一种新型脂肪因子，负责调节食欲和肝脏葡萄糖释放，其水平在肥胖症中呈病理性升高。本研究的目的是评估8周最大脂肪氧化强度（FAT ）的北欧式健走（NW）训练对内脏肥胖和代谢紊乱的年轻女性体重变化、胰岛素抵抗及阿朴脂蛋白水平变化的影响。
14名女性（30.14±3.63岁）完成了本研究，她们身体活动水平较低，存在内脏肥胖（腰围105.50±14.87厘米，体重指数33.85±5.48千克/平方米）且有代谢紊乱，她们连续8周（每周三次，每次60分钟）参加基于心率（114.21±14.10次/分钟）控制的FAT 强度（61.92±6.71%心率储备，42.33±8.69%最大摄氧量）的NW训练。
NW训练4周和8周后，发现阿朴脂蛋白浓度、腰围和臀围（HC）、腰高比及身体肥胖指数（BAI）显著降低（<0.05，效应量较大）。
8周FAT 强度下的NW训练可降低患有代谢紊乱的年轻女性血液中阿朴脂蛋白的浓度以及内脏肥胖程度。
