Koshiba Hiroya, Maeshima Estuko, Okumura Yuka
Department of Sport and Exercise Sciences, Graduate School of Sport Sciences, Osaka University of Health and Sport Sciences, Sennan-Gun, Osaka, Japan.
Clin Physiol Funct Imaging. 2017 Sep;37(5):474-480. doi: 10.1111/cpf.12326. Epub 2015 Nov 27.
This study investigated the relationship between changes in arterial stiffness and the lifestyle habits of endurance athletes after retiring from competition. The subjects were 10 female university endurance athletes. We used formPWV/ABI as an index for arterial stiffness and measured brachial-ankle pulse-wave velocity (baPWV) directly before subjects retired (0Y) and at 2 years after retirement (2Y). Furthermore, to investigate the relationship between arterial stiffness and lifestyle habits 2 years later, Lifecorder PLUS was used to measure physical activity levels, hours of sleep were surveyed using a questionnaire, and a food intake survey was conducted using Excel Eiyoukun Food Frequency Questionnaire Based on Food Group, FFQg Ver. 3.5. We found that baPWV increased significantly from 0Y to 2Y (P<0·05). Furthermore, negative correlations were observed between 2Y baPWV and step count as the physical activity index (r = -0·653, P<0·05) and moderate physical activity (r = -0·663, P<0·05). With regard to lifestyle habits that affected the amount of increase in baPWV from 0Y to 2Y (ΔbaPWV), negative correlations were noted between the step count (r = -0·690, P<0·05) and total physical activity (r = -0·657, P<0·05). However, no significant correlations were observed between 2Y baPWV and ΔbaPWV with food intake or hours of sleep. The results of this study suggested that physical activity was a lifestyle habit that inhibited an increase in arterial stiffness after retirement from competition and that having a high step count or engaging in physical activity for long periods of time in particular was useful in this regard.
本研究调查了耐力运动员退役后动脉僵硬度变化与生活习惯之间的关系。研究对象为10名女性大学耐力运动员。我们使用formPWV/ABI作为动脉僵硬度指标，在受试者退役前（0年）和退役后2年（2年）直接测量肱踝脉搏波速度（baPWV）。此外，为了研究2年后动脉僵硬度与生活习惯之间的关系，使用Lifecorder PLUS测量身体活动水平，通过问卷调查睡眠时长，并使用基于食物组的Excel Eiyoukun食物频率问卷（FFQg Ver. 3.5）进行食物摄入量调查。我们发现，baPWV从0年到2年显著增加（P<0.05）。此外，观察到2年时的baPWV与作为身体活动指标的步数（r = -0.653，P<0.05）和中等强度身体活动（r = -0.663，P<0.05）之间呈负相关。关于影响baPWV从0年到2年增加量（ΔbaPWV）的生活习惯，步数（r = -0.690，P<0.05）和总身体活动量（r = -0.657，P<0.05）之间呈负相关。然而，未观察到2年时的baPWV和ΔbaPWV与食物摄入量或睡眠时长之间存在显著相关性。本研究结果表明，身体活动是一种能抑制退役后动脉僵硬度增加的生活习惯，特别是步数多或长时间进行身体活动在这方面很有帮助。
