The purpose of this study was to investigate the effect of motor imagery training on increasing strength. Twenty young men as participant, were divided into experimental group (N=10) and control group (N=10). Records were recorded for 3 movement (leg press, bench press and seatedrow) before and after 4 weeks and 8 weeks of imagery training. repeated measure were used to evaluate the effect of intra-group and three-times difference, and manova were used to check the difference between two groups. The findings demonstrated a significant difference between the amount of strength in the leg press, bench press and seatedrow between all three measuring times in the experimental group. There is a significant difference between the amount of strength between the control and MI group (MIs). This difference can be seen in all three movements after eight weeks, but after 4 weeks the difference between the groups was observed just in benchpress. (p≤0.01).
