
FOLLOWUS
Department of Ultrasound, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai 200080, China
网络出版日期:2015-08-20,
纸质出版日期:2015-08
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Gender Differences in Ventricular-vascular Coupling Following Exercise△[J]. 中国医学科学杂志(英文版), 2015,30(4):231-238.
Li Zhao-jun, Du Lian-fang, Luo* Xiang-hong. Gender Differences in Ventricular-vascular Coupling Following Exercise△[J]. Chinese medical sciences journal, 2015, 30(4): 231-238.
Objective
To study the differences of cardiovascular system between men and women in response to exercise stress.
Methods
Forty healthy youth were tested according to Bruce protocol of exercise stress. They were detected by ultrasonography during the rest
peak exercise
and recovery stages
respectively. The left ventricular diastolic elastance (Ed)
effective arterial elastance (Ea)
left ventricular end-systolic elatance (Ees)
ventricular-vascular coupling index (VVI)
and total stiffness index (TSI) were measured and calculated according to the formulas. The results of all stages were compared according to genders.
Results
All stages
the Ed
TSI
and VVI of women were higher than those of men
but the Ees was lower than that of men (all
P
<
0.05); there was no significant difference in Ea between men and women. The Ed
Ees
Ea
and TSI were closely related with left ventricular oxygen consumption and heart function
and women showed more closely. Before and after exercise
the changes were different in Ed
Ees
Ea
TSI
and VVI (all
P
<
0.05)
and VVI changed least.
Conclusions
Before and after exercise
the ventricular stiffness matched well with arterial stiffness and maintained within a narrow range. For women
the tolerance of exercise was lower than that of men.
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