Sobczak Katarzyna, Nowinka Paweł, Wochna Krystian, Domaszewska Katarzyna
Laboratory of Swimming and Water Lifesaving, Faculty of Sport Sciences, Poznan University of Physical Education, Królowej Jadwigi Street 27/39, 61-871 Poznań, Poland.
Department of Cardiology-Pulmonology, Heliodor Swiecicki University Hospital, Poznan University of Medical Sciences, 61-701 Poznań, Poland.
Biology (Basel). 2023 Jan 23;12(2):179. doi: 10.3390/biology12020179.
Age-related reduction in exercise capacity is manifested by a rapid development of fatigue. Research confirmed the adverse prognostic value of red blood cell distribution width (RDW-CV), an independent factor in heart failure, coronary heart disease and myocardial infarction. Physical exercise improves and helps to maintain cardiorespiratory fitness. The aim of our study was to examine the impact of 8 weeks' Nordic walking training with classic poles (NW) and NW training with poles with an integrated resistance shock absorber (NW with RSA) on RDW-CV levels and to assess correlations between RDW-CV levels and cardiorespiratory performance in postmenopausal women.
In this study, 32 postmenopausal women (NW-16, NW with RSA-16) participated in eight weeks of walking training. The mean age of women was 66.56 ± 4.23 year. and BMI 26.99 ± 3.86 kg/m. At the beginning and at the end of the study, spirometry and exercise tests were performed. Haematological parameters were determined in the venous blood.
Statistical analysis of differences in post-training changes in the parameters between the groups studied showed a significant difference in change in body weight (∆body weight) ( < 0.05; ES: 0.778), BMI (∆BMI) ( < 0.05; ES: 0.778), waist circumference (∆WC) ( < 0.05; ES: 1.225) and (∆RDW-SD) ( < 0.05; ES: 1.215). There were no changes in electrocardiographic and spirometric parameters.
Based on the findings from the present study, it can be assumed that endurance and resistance exercise can significantly reduce disease severity and mortality. A clinical analysis of RDW levels, together with other cardiological and biochemical parameters, can provide practical prognostic information relating to cardiovascular disease, mortality risk and treatment outcomes.
与年龄相关的运动能力下降表现为疲劳迅速加剧。研究证实红细胞分布宽度（RDW-CV）具有不良预后价值，它是心力衰竭、冠心病和心肌梗死的一个独立因素。体育锻炼可改善并有助于维持心肺健康。我们研究的目的是检验8周使用传统手杖的北欧式健走训练（NW）以及使用带有集成阻力缓冲器的手杖的北欧式健走训练（NW with RSA）对RDW-CV水平的影响，并评估绝经后女性RDW-CV水平与心肺功能之间的相关性。
在本研究中，32名绝经后女性（NW组16名，NW with RSA组16名）参加了为期8周的步行训练。女性的平均年龄为66.56±4.23岁，体重指数为26.99±3.86kg/m²。在研究开始时和结束时，进行了肺活量测定和运动测试。测定静脉血中的血液学参数。
对所研究组之间训练后参数变化差异的统计分析显示，体重变化（∆体重）（P<0.05；效应量：0.778）、体重指数变化（∆BMI）（P<0.05；效应量：0.778）、腰围变化（∆WC）（P<0.05；效应量：1.225）和（∆RDW-SD）（P<0.05；效应量：1.215）存在显著差异。心电图和肺活量测定参数没有变化。
基于本研究的结果，可以假设耐力和阻力运动可显著降低疾病严重程度和死亡率。对RDW水平以及其他心脏和生化参数进行临床分析，可为心血管疾病、死亡风险和治疗结果提供实用的预后信息。
