We investigated the effect of tension strain on proliferation and reconstruction of vascular smooth muscle cells (VSMCs). We designed a device in order to load cyclically a silicon membrane and the deformation of the membrane was transferred to the VSMCs cultured on the membrane. VSMCs therefore were exposed to a cyclic load by two dimension tension strain. Then microscopic observation, computer image processing, 3H TdR incorporation were applied to investigate the morphology and proliferation of VS...