Zahra Salmani

, Fatemeh Alirezaei Noghondar
* 
, Hamid reza Taheri Torbati

, Payam Sasannejad
Abstract
Background: Contrary to the belief that postural control is quite automatic, researches have shown attentional demand of postural control. Most of stroke patients have deficits in sensory, motion and cognitive systems. Therefore, the purpose of this study was to investigate the effects of working memory dual Task on postural sways in chronic stroke patients. Methods: Twenty subjects diagnosed with chronic stroke participated in the study. Center of pressure (COP) fluctuations parameters including mean standard deviation and mean velocity of changes in both medial–lateral (ML) and anterior–posterior (AP) directions were randomly measured during quiet standing on a