Bennett T, Fentem P H, Fitton D, Hampton J R, Hosking D J, Riggott P A
Br Heart J. 1977 Jan;39(1):25-8. doi: 10.1136/hrt.39.1.25.
R-R intervals and R-R interval variation were measured in 2 selected groups of diabetic subjects; 1 group was selected because vagal control of the heart appeared normal, the other group was selected because they lacked vagal control of the heart. The means of the R-R intervals for the 2 groups were not significantly different under various conditions (sleeping, lying, during deep breathing, sitting, standing, and during upright activity). The standard deviations of the R-R intervals for the 2 groups were only significantly different during deep breathing and upright activity. It is suggested that cardiac vagal function is not reliably assessed by measurement of R-R interval variation during quiet standing, but useful information may be obtained during deep breathing.
在两组选定的糖尿病患者中测量了R-R间期和R-R间期变异性;一组被选中是因为其心脏的迷走神经控制似乎正常,另一组被选中是因为他们缺乏心脏的迷走神经控制。在各种条件下(睡眠、卧位、深呼吸期间、坐位、站立位以及直立活动期间),两组的R-R间期平均值无显著差异。两组的R-R间期标准差仅在深呼吸和直立活动期间有显著差异。这表明,在安静站立时通过测量R-R间期变异性不能可靠地评估心脏迷走神经功能,但在深呼吸期间可能会获得有用信息。