Facilitating coronary collateral recruitment by isometric exercise during acute coronary occlusion
10.3760/cma.j.issn.0254-1424.2012.010.007
- VernacularTitle:等长收缩运动促进急性冠状动脉闭塞时侧支血流募集
- Author:
Xiao LU
;
Song LIN
;
Jianan LI
- Publication Type:Journal Article
- Keywords:
Isometric exercise;
Ischemia;
Heart;
Collateral flow
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2012;(10):747-751
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine whether isometric handgrip exercise can increase collateral flow to the ischemic myocardium in acute coronary occlusion patients with coronary artery disease (CAD).Methods Sixty-five patients with one-vessel CAD were randomly assigned to either an isometric exercise (IME) group or no-exercise (NE) group.Patients in the IME group performed isometric handgrip exercises (50％ of the maximum voluntary contraction) during 1 min of coronary balloon occlusion.Patients in the NE group remained sedentary during the procedure.The collateral flow index (CFI),heart rare (HR),systolic blood pressure (SBP) and diastolic blood pressure (DBP) were determined prior to and at the end of 1 min of coronary occlusion.Results In the IME group the average CFI improved significantly more during the occlusion than in the NE group.The differences in HR,SBP and DBP were also significantly grcatcr in the CFI group than in the NE group controls.Conclusion Isometric exercise can induce significantly increased coronary collateral flow in CAD patients during acute vessel occlusion.
