I have been training for about 3 years non stop now. I recently started doing single leg romanian deadlifts and noticed that I have more trouble stabilizing myself with my left leg. Are there any exercises I can do to supplement my left leg stabilization? Should I do the supplemental exercises for both legs or just my lagging leg?
I also have a lagging pectoral muscle on my right side and a lagging tricep muscle on my left side. Any suggestions for bringing those muscles up to speed? Also, would you do the supplemental exercises for both sides or just the lagging side?