Effects of regular aerobic exercise on post-exercise vagal reactivation in young female.
Effects of regular aerobic exercise on post-exercise vagal reactivation in young female.
复制标题
定期有氧运动对年轻女性运动后迷走神经再激活的影响。
DOI：
10.1080/17461391.2013.774054
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Ichiro Kono.
中科院分区：
文献类型：
--
作者：
Mariko Nakamura ;Koichiro Hayashi;Katsuji Aizawa;Noboru Mesaki;Ichiro Kono.
有规律的有氧运动可以加速运动后心脏迷走神经的重新激活。然而，人们对有规律的有氧运动对年轻女性心脏迷走神经重新激活的潜在有利调节作用知之甚少。本研究旨在探讨有规律的有氧运动对年轻女性运动后迷走神经复活的影响。研究对象为8名经耐力训练的女运动员(运动员组)和10名未经训练的女运动员(对照组)。测定受试者卵泡早期(EF)和黄体中期(ML)的静息心率(HR)、心率变异性和运动后心脏迷走神经复活。以T30评价运动后心脏迷走神经的复活：4min循环功率运动后前30个S心率下降的时间常数(强度：换气阈值的80%)。在两组中，T30在EF期比ML期更快(P<；0.05)。在EF期，运动员T30低于对照组(P<；0.05)。EF期最大摄氧量(O2max)与T30呈显著正相关(r=0.545，P<0.05)。我们的结果表明，在年轻女性中，有规律的有氧运动可以加速运动后EF期心脏迷走神经的重新激活。
Regular aerobic exercise accelerates post-exercise cardiovagal reactivation. However, little is known about the potentially favourable modulatory effects of regular aerobic exercise on cardiovagal reactivation in young female. The purpose of this study was to examine effects of regular aerobic exercise on post-exercise vagal reactivation in young female. Our study consisted of 8 female endurance-trained athletes (athlete group) and 10 untrained females (control group). Resting heart rate (HR), HR variability and post-exercise cardiovagal reactivation were measured during the subjects’ early follicular (EF) and middle luteal (ML) phases. Post-exercise cardiovagal reactivation was estimated byT30: the time constant of HR decline for the first 30 s after the 4-min cycle ergometer exercise (intensity: 80% of ventilation threshold). In both groups,T30was more accelerated in the EF phase than in the ML phase (P<0.05). In the EF phase,T30was lower in the athletes than in the controls (P<0.05). A significant correlation between maximum oxygen uptake ( O2max) andT30was observed in the EF phase (r=0.545,P<0.05). Our results suggest that regular aerobic exercise accelerates post-exercise cardiovagal reactivation in the EF phase in young female.